test: fix firebase deployment script test

When I fixed the project id in 2c4850dc58,
I didn't realize we had a test that verified the wrong behavior.

.circleci/config.yml

@@ -1,20 +1,55 @@
+# Configuration file for https://circleci.com/gh/angular/angular
+
+# Note: YAML anchors allow an object to be re-used, reducing duplication.
+# The ampersand declares an alias for an object, then later the `<<: *name`
+# syntax dereferences it.
+# See http://blog.daemonl.com/2016/02/yaml.html
+# To validate changes, use an online parser, eg.
+# http://yaml-online-parser.appspot.com/
+
+# Settings common to each job
+anchor_1: &job_defaults
+  working_directory: ~/ng
+  docker:
+    - image: angular/ngcontainer:0.0.2
+
+# After checkout, rebase on top of master.
+# Similar to travis behavior, but not quite the same.
+# See https://discuss.circleci.com/t/1662
+anchor_2: &post_checkout
+  post: git pull --ff-only origin "refs/pull/${CI_PULL_REQUEST//*pull\//}/merge"
+
 version: 2
 jobs:
-  build:
-    working_directory: ~/ng
-    docker:
-      - image: alexeagle/ngcontainer
+  lint:
+    <<: *job_defaults
     steps:
-      - checkout
+      - checkout:
+          <<: *post_checkout
       - restore_cache:
-          key: angular-{{ .Branch }}-{{ checksum "npm-shrinkwrap.json" }}
-      - run: npm install
-      - run: npm run postinstall
+          key: angular-{{ .Branch }}-{{ checksum "yarn.lock" }}
+
+      - run: yarn install --freeze-lockfile --non-interactive
       - run: ./node_modules/.bin/gulp lint
-      # Build twice, workaround for
-      # https://github.com/bazelbuild/bazel/issues/3114
-      - run: bazel build ... || bazel build ...
+
+  build:
+    <<: *job_defaults
+    steps:
+      - checkout:
+          <<: *post_checkout
+      - restore_cache:
+          key: angular-{{ .Branch }}-{{ checksum "yarn.lock" }}
+
+      - run: bazel run @yarn//:yarn
+      - run: bazel build ...
       - save_cache:
-          key: angular-{{ .Branch }}-{{ checksum "npm-shrinkwrap.json" }}
+          key: angular-{{ .Branch }}-{{ checksum "yarn.lock" }}
           paths:
             - "node_modules"
+
+workflows:
+  version: 2
+  default_workflow:
+    jobs:
+      - lint
+      - build

.github/ISSUE_TEMPLATE.md

@@ -1,39 +1,57 @@
 <!--
-IF YOU DON'T FILL OUT THE FOLLOWING INFORMATION WE MIGHT CLOSE YOUR ISSUE WITHOUT INVESTIGATING
+PLEASE HELP US PROCESS GITHUB ISSUES FASTER BY PROVIDING THE FOLLOWING INFORMATION.
+
+ISSUES MISSING IMPORTANT INFORMATION MAY BE CLOSED WITHOUT INVESTIGATION.
 -->
 
-**I'm submitting a ...**  (check one with "x")
-```
-[ ] bug report => search github for a similar issue or PR before submitting
-[ ] feature request
-[ ] support request => Please do not submit support request here, instead see https://github.com/angular/angular/blob/master/CONTRIBUTING.md#question
-```
+## I'm submitting a...
+<!-- Check one of the following options with "x" -->
+<pre><code>
+[ ] Regression (a behavior that used to work and stopped working in a new release)
+[ ] Bug report  <!-- Please search GitHub for a similar issue or PR before submitting -->
+[ ] Feature request
+[ ] Documentation issue or request
+[ ] Support request => Please do not submit support request here, instead see https://github.com/angular/angular/blob/master/CONTRIBUTING.md#question
+</code></pre>
 
-**Current behavior**
-<!-- Describe how the bug manifests. -->
+## Current behavior
+<!-- Describe how the issue manifests. -->
 
-**Expected behavior**
-<!-- Describe what the behavior would be without the bug. -->
 
-**Minimal reproduction of the problem with instructions**
+## Expected behavior
+<!-- Describe what the desired behavior would be. -->
+
+
+## Minimal reproduction of the problem with instructions
 <!--
-If the current behavior is a bug or you can illustrate your feature request better with an example, 
-please provide the *STEPS TO REPRODUCE* and if possible a *MINIMAL DEMO* of the problem via
+For bug reports please provide the *STEPS TO REPRODUCE* and if possible a *MINIMAL DEMO* of the problem via
 https://plnkr.co or similar (you can use this template as a starting point: http://plnkr.co/edit/tpl:AvJOMERrnz94ekVua0u5).
 -->
 
-**What is the motivation / use case for changing the behavior?**
-<!-- Describe the motivation or the concrete use case -->
+## What is the motivation / use case for changing the behavior?
+<!-- Describe the motivation or the concrete use case. -->
 
-**Please tell us about your environment:**
-<!-- Operating system, IDE, package manager, HTTP server, ... -->
 
-* **Angular version:** 2.0.X
+## Environment
+
+<pre><code>
+Angular version: X.Y.Z
 <!-- Check whether this is still an issue in the most recent Angular version -->
 
-* **Browser:** [all | Chrome XX | Firefox XX | IE XX | Safari XX | Mobile Chrome XX | Android X.X Web Browser | iOS XX Safari | iOS XX UIWebView | iOS XX WKWebView ]
-<!-- All browsers where this could be reproduced -->
+Browser:
+- [ ] Chrome (desktop) version XX
+- [ ] Chrome (Android) version XX
+- [ ] Chrome (iOS) version XX
+- [ ] Firefox version XX
+- [ ] Safari (desktop) version XX
+- [ ] Safari (iOS) version XX
+- [ ] IE version XX
+- [ ] Edge version XX
  
-* **Language:** [all | TypeScript X.X | ES6/7 | ES5]
+For Tooling issues:
+- Node version: XX  <!-- run `node --version` -->
+- Platform:  <!-- Mac, Linux, Windows -->
 
-* **Node (for AoT issues):** `node --version` =   
+Others:
+<!-- Anything else relevant?  Operating system version, IDE, package manager, HTTP server, ... -->
+</code></pre>

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,10 +1,15 @@
-**Please check if the PR fulfills these requirements**
+## PR Checklist
+Please check if your PR fulfills the following requirements:
+
 - [ ] The commit message follows our guidelines: https://github.com/angular/angular/blob/master/CONTRIBUTING.md#commit
 - [ ] Tests for the changes have been added (for bug fixes / features)
 - [ ] Docs have been added / updated (for bug fixes / features)
 
 
-**What kind of change does this PR introduce?** (check one with "x")
+## PR Type
+What kind of change does this PR introduce?
+
+<!-- Please check the one that applies to this PR using "x". -->
 ```
 [ ] Bugfix
 [ ] Feature
@@ -12,25 +17,27 @@
 [ ] Refactoring (no functional changes, no api changes)
 [ ] Build related changes
 [ ] CI related changes
+[ ] Documentation content changes
+[ ] angular.io application / infrastructure changes
 [ ] Other... Please describe:
 ```
 
-**What is the current behavior?** (You can also link to an open issue here)
+## What is the current behavior?
+<!-- Please describe the current behavior that you are modifying, or link to a relevant issue. -->
+
+Issue Number: N/A
 
 
-
-**What is the new behavior?**
+## What is the new behavior?
 
 
-
-**Does this PR introduce a breaking change?** (check one with "x")
+## Does this PR introduce a breaking change?
 ```
 [ ] Yes
 [ ] No
 ```
 
-If this PR contains a breaking change, please describe the impact and migration path for existing applications: ...
+<!-- If this PR contains a breaking change, please describe the impact and migration path for existing applications below. -->
 
 
-**Other information**:
-
+## Other information

.gitignore

@@ -2,6 +2,7 @@
 
 /dist/
 bazel-*
+e2e_test.*
 node_modules
 bower_components
 

.mailmap

@@ -0,0 +1 @@
+Michał Gołębiowski-Owczarek <m.goleb@gmail.com>

.pullapprove.yml

@@ -8,9 +8,11 @@
 # alexeagle - Alex Eagle
 # alxhub - Alex Rickabaugh
 # chuckjaz - Chuck Jazdzewski
+# Foxandxss - Jesús Rodríguez
 # gkalpak - George Kalpakas
 # IgorMinar - Igor Minar
 # jasonaden - Jason Aden
+# juleskremer - Jules Kremer
 # kara - Kara Erickson
 # matsko - Matias Niemelä
 # mhevery - Misko Hevery
@@ -18,10 +20,11 @@
 # pkozlowski-opensource - Pawel Kozlowski
 # robwormald - Rob Wormald
 # tbosch - Tobias Bosch
+# tinayuangao - Tina Gao
 # vicb - Victor Berchet
 # vikerman - Vikram Subramanian
 # wardbell - Ward Bell
-# tinayuangao - Tina Gao
+
 
 version: 2
 
@@ -93,6 +96,7 @@ groups:
         - "packages/core/*"
     users:
       - tbosch #primary
+      - chuckjaz
       - mhevery
       - vicb
       - IgorMinar #fallback
@@ -100,10 +104,11 @@ groups:
   animations:
     conditions:
       files:
-        - "packages/animation/*"
+        - "packages/animations/*"
         - "packages/platform-browser/animations/*"
     users:
       - matsko #primary
+      - chuckjaz #fallback
       - mhevery #fallback
       - IgorMinar #fallback
 
@@ -249,10 +254,46 @@ groups:
   angular.io:
     conditions:
       files:
-        - "aio/*"
+        include:
+          - "aio/*"
+        exclude:
+          - "aio/content/*"
     users:
-      - IgorMinar #primary
-      - petebacondarwin #secondary
+      - petebacondarwin #primary
+      - IgorMinar
       - gkalpak
-      - wardbell
+      - mhevery #fallback
+
+  angular.io-guide-and-tutorial:
+    conditions:
+      files:
+        include:
+          - "aio/content/*"
+        exclude:
+          - "aio/content/marketing/*"
+          - "aio/content/navigation.json"
+          - "aio/content/license.md"
+    users:
+      - juleskremer #primary
+      - Foxandxss
+      - stephenfluin
+      - wardbell
+      - petebacondarwin
+      - gkalpak
+      - IgorMinar #fallback
+      - mhevery #fallback
+
+  angular.io-marketing:
+    conditions:
+      files:
+        include:
+          - "aio/content/marketing/*"
+          - "aio/content/navigation.json"
+          - "aio/content/license.md"
+    users:
+      - juleskremer #primary
+      - stephenfluin
+      - petebacondarwin
+      - gkalpak
+      - IgorMinar #fallback
       - mhevery #fallback

.travis.yml

@@ -1,5 +1,6 @@
 language: node_js
 sudo: false
+dist: trusty
 node_js:
   - '6.9.5'
 
@@ -37,25 +38,31 @@ env:
     # This is needed for publishing builds to the "aio-staging" and "angular-io" firebase projects.
     # This token was generated using the aio-deploy@angular.io account using `firebase login:ci` and password from valentine
     - secure: "L5CyQmpwWtoR4Qi4xlWQh/cL1M6ZeJL4W4QAr4HdKFMgYt9h+Whqkymyh2NxwmCbPvWa7yUd+OiLQUDCY7L2VIg16hTwoe2CgYDyQA0BEwLzxtRrJXl93TfwMlrUx5JSIzAccD6D4sjtz8kSFMomK2Nls33xOXOukwyhVMjd0Cg="
+    # ANGULAR_PAYLOAD_FIREBASE_TOKEN
+    # This is for payload size data to "angular-payload-size" firebase project
+    # This token was generated using the payload@angular.io account using `firebase login:ci` and password from valentine
+    - secure: "SxotP/ymNy6uWAVbfwM9BlwETPEBpkRvU/F7fCtQDDic99WfQHzzUSQqHTk8eKk3GrGAOSL09vT0WfStQYEIGEoS5UHWNgOnelxhw+d5EnaoB8vQ0dKQBTK092hQg4feFprr+B/tCasyMV6mVwpUzZMbIJNn/Rx7H5g1bp+Gkfg="
   matrix:
     # Order: a slower build first, so that we don't occupy an idle travis worker waiting for others to complete.
     - CI_MODE=e2e
     - CI_MODE=e2e_2
     - CI_MODE=js
     - CI_MODE=saucelabs_required
-    - CI_MODE=browserstack_required
+    # deactivated, see #19768
+    # - CI_MODE=browserstack_required
     - CI_MODE=saucelabs_optional
     - CI_MODE=browserstack_optional
-    - CI_MODE=docs_test
+    - CI_MODE=aio_tools_test
     - CI_MODE=aio
-    - CI_MODE=aio_e2e
+    - CI_MODE=aio_e2e AIO_SHARD=0
+    - CI_MODE=aio_e2e AIO_SHARD=1
+    - CI_MODE=bazel
 
 matrix:
   fast_finish: true
   allow_failures:
     - env: "CI_MODE=saucelabs_optional"
     - env: "CI_MODE=browserstack_optional"
-    - env: "CI_MODE=aio_e2e"
 
 before_install:
   # source the env.sh script so that the exported variables are available to other scripts later on

BUILD.bazel

@@ -10,9 +10,16 @@ filegroup(
         # Performance workaround: list individual files
         # This won't scale in the general case.
         # TODO(alexeagle): figure out what to do
-        "node_modules/typescript/lib/**",
-        "node_modules/zone.js/**/*.d.ts",
+        "node_modules/typescript/**",
+        "node_modules/zone.js/**",
         "node_modules/rxjs/**/*.d.ts",
+        "node_modules/rxjs/**/*.js",
         "node_modules/@types/**/*.d.ts",
+        "node_modules/tsickle/**",
+        "node_modules/hammerjs/**/*.d.ts",
+        "node_modules/protobufjs/**",
+        "node_modules/bytebuffer/**",
+        "node_modules/reflect-metadata/**",
+        "node_modules/minimist/**/*.js",
     ]),
 )

CONTRIBUTING.md

@@ -17,15 +17,15 @@ Help us keep Angular open and inclusive. Please read and follow our [Code of Con
 
 ## <a name="question"></a> Got a Question or Problem?
 
-Please, do not open issues for the general support questions as we want to keep GitHub issues for bug reports and feature requests. You've got much better chances of getting your question answered on [StackOverflow](https://stackoverflow.com/questions/tagged/angular) where the questions should be tagged with tag `angular`.
+Do not open issues for general support questions as we want to keep GitHub issues for bug reports and feature requests. You've got much better chances of getting your question answered on [Stack Overflow](https://stackoverflow.com/questions/tagged/angular) where the questions should be tagged with tag `angular`.
 
-StackOverflow is a much better place to ask questions since:
+Stack Overflow is a much better place to ask questions since:
 
-- there are thousands of people willing to help on StackOverflow
+- there are thousands of people willing to help on Stack Overflow
 - questions and answers stay available for public viewing so your question / answer might help someone else
-- StackOverflow's voting system assures that the best answers are prominently visible.
+- Stack Overflow's voting system assures that the best answers are prominently visible.
 
-To save your and our time we will be systematically closing all the issues that are requests for general support and redirecting people to StackOverflow.
+To save your and our time, we will systematically close all issues that are requests for general support and redirect people to Stack Overflow.
 
 If you would like to chat about the question in real-time, you can reach out via [our gitter channel][gitter].
 
@@ -198,8 +198,7 @@ Must be one of the following:
 * **fix**: A bug fix
 * **perf**: A code change that improves performance
 * **refactor**: A code change that neither fixes a bug nor adds a feature
-* **style**: Changes that do not affect the meaning of the code (white-space, formatting, missing
-  semi-colons, etc)
+* **style**: Changes that do not affect the meaning of the code (white-space, formatting, missing semi-colons, etc)
 * **test**: Adding missing tests or correcting existing tests
 
 ### Scope
@@ -207,6 +206,7 @@ The scope should be the name of the npm package affected (as perceived by person
 
 The following is the list of supported scopes:
 
+* **animations**
 * **common**
 * **compiler**
 * **compiler-cli**
@@ -223,7 +223,7 @@ The following is the list of supported scopes:
 * **upgrade**
 * **tsc-wrapped**
 
-There is currently few exception to the "use package name" rule:
+There are currently a few exceptions to the "use package name" rule:
 
 * **packaging**: used for changes that change the npm package layout in all of our packages, e.g. public path changes, package.json changes done to all packages, d.ts file/format changes, changes to bundles, etc.
 * **changelog**: used for updating the release notes in CHANGELOG.md

README.md

@@ -3,22 +3,21 @@
 [![Join the chat at https://gitter.im/angular/angular](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/angular/angular?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 [![Issue Stats](http://issuestats.com/github/angular/angular/badge/pr?style=flat)](http://issuestats.com/github/angular/angular)
 [![Issue Stats](http://issuestats.com/github/angular/angular/badge/issue?style=flat)](http://issuestats.com/github/angular/angular)
-[![npm version](https://badge.fury.io/js/%40angular%2Fcore.svg)](https://badge.fury.io/js/%40angular%2Fcore)
+[![npm version](https://badge.fury.io/js/%40angular%2Fcore.svg)](https://www.npmjs.com/@angular/core)
+
 
 [![Sauce Test Status](https://saucelabs.com/browser-matrix/angular2-ci.svg)](https://saucelabs.com/u/angular2-ci)
+
 *Safari (7+), iOS (7+), Edge (14) and IE mobile (11) are tested on [BrowserStack][browserstack].*
 
-Angular
-=========
-
-Angular is a development platform for building mobile and desktop web applications using Typescript/JavaScript (JS) and other languages.
+# Angular
 
+Angular is a development platform for building mobile and desktop web applications using Typescript/JavaScript and other languages.
 
 ## Quickstart
 
 [Get started in 5 minutes][quickstart].
 
-
 ## Want to help?
 
 Want to file a bug, contribute some code, or improve documentation? Excellent! Read up on our

WORKSPACE

@@ -1,12 +1,17 @@
 load("@bazel_tools//tools/build_defs/repo:git.bzl", "git_repository")
 
 git_repository(
-    name = "io_bazel_rules_typescript",
-    remote = "https://github.com/bazelbuild/rules_typescript.git",
-    tag = "0.0.3",
+   name = "build_bazel_rules_typescript",
+   remote = "https://github.com/bazelbuild/rules_typescript.git",
+   tag = "0.0.5",
 )
 
-load("@io_bazel_rules_typescript//:defs.bzl", "node_repositories", "yarn_install")
+load("@build_bazel_rules_typescript//:defs.bzl", "node_repositories")
 
-node_repositories()
-yarn_install(package_json = "//:package.json")
+node_repositories(package_json = "//:package.json")
+
+git_repository(
+    name = "build_bazel_rules_angular",
+    remote = "https://github.com/bazelbuild/rules_angular.git",
+    tag = "0.0.1",
+)

aio/.angular-cli.json

@@ -31,7 +31,9 @@
       "environmentSource": "environments/environment.ts",
       "environments": {
         "dev": "environments/environment.ts",
-        "prod": "environments/environment.prod.ts"
+        "next": "environments/environment.next.ts",
+        "stable": "environments/environment.stable.ts",
+        "archive": "environments/environment.archive.ts"
       }
     }
   ],

aio/.firebaserc

@@ -1,5 +0,0 @@
-{
-  "projects": {
-    "staging": "aio-staging"
-  }
-}

aio/.gitignore

@@ -43,3 +43,6 @@ protractor-results*.txt
 # System Files
 .DS_Store
 Thumbs.db
+
+# copied dependencies
+src/assets/js/lunr*

aio/README.md

@@ -13,9 +13,14 @@ You should run all these tasks from the `angular/aio` folder.
 Here are the most important tasks you might need to use:
 
 * `yarn` - install all the dependencies.
-* `yarn setup` - Install all the dependencies, boilerplate, plunkers, zips and runs dgeni on the docs.
+* `yarn setup` - install all the dependencies, boilerplate, plunkers, zips and run dgeni on the docs.
+* `yarn setup-local` - same as `setup`, but use the locally built Angular packages for aio and docs examples boilerplate.
+
+* `yarn build` - create a production build of the application (after installing dependencies, boilerplate, etc).
+* `yarn build-local` - same as `build`, but use `setup-local` instead of `setup`.
 
 * `yarn start` - run a development web server that watches the files; then builds the doc-viewer and reloads the page, as necessary.
+* `yarn serve-and-sync` - run both the `docs-watch` and `start` in the same console.
 * `yarn lint` - check that the doc-viewer code follows our style rules.
 * `yarn test` - watch all the source files, for the doc-viewer, and run all the unit tests when any change.
 * `yarn e2e` - run all the e2e tests for the doc-viewer.
@@ -25,28 +30,33 @@ Here are the most important tasks you might need to use:
 * `yarn docs-lint` - check that the doc gen code follows our style rules.
 * `yarn docs-test` - run the unit tests for the doc generation code.
 
-* `yarn boilerplate:add` - generate all the boilerplate code for the examples, so that they can be run locally.
+* `yarn boilerplate:add` - generate all the boilerplate code for the examples, so that they can be run locally. Add the option `--local` to use your local version of Angular contained in the "dist" folder.
 * `yarn boilerplate:remove` - remove all the boilerplate code that was added via `yarn boilerplate:add`.
 * `yarn generate-plunkers` - generate the plunker files that are used by the `live-example` tags in the docs.
 * `yarn generate-zips` - generate the zip files from the examples. Zip available via the `live-example` tags in the docs.
 
+* `yarn example-e2e` - run all e2e tests for examples
+  - `yarn example-e2e --setup` - force webdriver update & other setup, then run tests
+  - `yarn example-e2e --filter=foo` - limit e2e tests to those containing the word "foo"
+  - `yarn example-e2e --setup --local` - run e2e tests with the local version of Angular contained in the "dist" folder
+
 * `yarn build-ie-polyfills` - generates a js file of polyfills that can be loaded in Internet Explorer.
 
 ## Using ServiceWorker locally
 
-Since abb36e3cb, running `yarn start -- --prod` will no longer set up the ServiceWorker, which
+Since abb36e3cb, running `yarn start --prod` will no longer set up the ServiceWorker, which
 would require manually running `yarn sw-manifest` and `yarn sw-copy` (something that is not possible
 with webpack serving the files from memory).
 
 If you want to test ServiceWorker locally, you can use `yarn build` and serve the files in `dist/`
-with `yarn http-server -- dist -p 4200`.
+with `yarn http-server dist -p 4200`.
 
 For more details see #16745.
 
 
 ## Guide to authoring
 
-There are two types of content in the documentatation:
+There are two types of content in the documentation:
 
 * **API docs**: descriptions of the modules, classes, interfaces, decorators, etc that make up the Angular platform.
 API docs are generated directly from the source code.
@@ -60,6 +70,9 @@ More specifically, there are sub-folders that contain particular types of conten
 
 We use the [dgeni](https://github.com/angular/dgeni) tool to convert these files into docs that can be viewed in the doc-viewer.
 
+The [Authors Style Guide](https://angular.io/guide/docs-style-guide) prescribes guidelines for
+writing guide pages, explains how to use the documentation classes and components, and how to markup sample source code to produce code snippets.
+
 ### Generating the complete docs
 
 The main task for generating the docs is `yarn docs`. This will process all the source files (API and other),
@@ -98,8 +111,16 @@ yarn start
 yarn docs-watch
 ```
 
+>Alternatively, try the consolidated `serve-and-sync` command that builds, watches and serves in the same terminal window
+```bash
+yarn serve-and-sync
+```
+
 * Open a browser at https://localhost:4200/ and navigate to the document on which you want to work.
-You can automatically open the browser by using `yarn start -- -o` in the first terminal.
+You can automatically open the browser by using `yarn start -o` in the first terminal.
 
 * Make changes to the page's associated doc or example files. Every time a file is saved, the doc will
 be regenerated, the app will rebuild and the page will reload.
+
+* If you get a build error complaining about examples or any other odd behavior, be sure to consult
+the [Authors Style Guide](https://angular.io/guide/docs-style-guide).

aio/aio-builds-setup/dockerbuild/Dockerfile

@@ -29,6 +29,8 @@ ARG      AIO_NGINX_PORT_HTTPS=443
 ARG TEST_AIO_NGINX_PORT_HTTPS=4433
 ARG      AIO_REPO_SLUG=angular/angular
 ARG TEST_AIO_REPO_SLUG=test-repo/test-slug
+ARG      AIO_TRUSTED_PR_LABEL="aio: preview"
+ARG TEST_AIO_TRUSTED_PR_LABEL="aio: preview"
 ARG      AIO_UPLOAD_HOSTNAME=upload.localhost
 ARG TEST_AIO_UPLOAD_HOSTNAME=upload.localhost
 ARG      AIO_UPLOAD_MAX_SIZE=20971520
@@ -48,6 +50,7 @@ ENV AIO_BUILDS_DIR=$AIO_BUILDS_DIR                     TEST_AIO_BUILDS_DIR=$TEST
     AIO_REPO_SLUG=$AIO_REPO_SLUG                       TEST_AIO_REPO_SLUG=$TEST_AIO_REPO_SLUG                       \
     AIO_SCRIPTS_JS_DIR=/usr/share/aio-scripts-js                                                                    \
     AIO_SCRIPTS_SH_DIR=/usr/share/aio-scripts-sh                                                                    \
+    AIO_TRUSTED_PR_LABEL=$AIO_TRUSTED_PR_LABEL         TEST_AIO_TRUSTED_PR_LABEL=$TEST_AIO_TRUSTED_PR_LABEL         \
     AIO_UPLOAD_HOSTNAME=$AIO_UPLOAD_HOSTNAME           TEST_AIO_UPLOAD_HOSTNAME=$TEST_AIO_UPLOAD_HOSTNAME           \
     AIO_UPLOAD_MAX_SIZE=$AIO_UPLOAD_MAX_SIZE           TEST_AIO_UPLOAD_MAX_SIZE=$TEST_AIO_UPLOAD_MAX_SIZE           \
     AIO_UPLOAD_PORT=$AIO_UPLOAD_PORT                   TEST_AIO_UPLOAD_PORT=$TEST_AIO_UPLOAD_PORT                   \
@@ -153,7 +156,7 @@ RUN find $AIO_SCRIPTS_SH_DIR -maxdepth 1 -type f -printf "%P\n" \
 # Set up the Node.js scripts
 COPY scripts-js/ $AIO_SCRIPTS_JS_DIR/
 WORKDIR $AIO_SCRIPTS_JS_DIR/
-RUN yarn install --production
+RUN yarn install --production --freeze-lockfile
 
 
 # Set up health check

aio/aio-builds-setup/dockerbuild/dnsmasq/dnsmasq.conf

@@ -6,7 +6,7 @@ server=8.8.4.4
 # Listen for DHCP and DNS requests only on this address.
 listen-address=127.0.0.1
 
-# Force an IP addres for these domains.
+# Force an IP address for these domains.
 address=/{{$AIO_NGINX_HOSTNAME}}/127.0.0.1
 address=/{{$AIO_UPLOAD_HOSTNAME}}/127.0.0.1
 address=/{{$TEST_AIO_NGINX_HOSTNAME}}/127.0.0.1

aio/aio-builds-setup/dockerbuild/nginx/aio-builds.conf

@@ -15,7 +15,7 @@ server {
 
 # Serve PR-preview requests
 server {
-  server_name "~^pr(?<pr>[1-9][0-9]*)-(?<sha>[0-9a-f]{40})\.";
+  server_name "~^pr(?<pr>[1-9][0-9]*)-(?<sha>[0-9a-f]{7,40})\.";
 
   listen {{$AIO_NGINX_PORT_HTTPS}} ssl http2;
   listen [::]:{{$AIO_NGINX_PORT_HTTPS}} ssl http2;
@@ -88,6 +88,21 @@ server {
     resolver 127.0.0.1;
   }
 
+  # Notify about PR changes
+  location "~^/pr-updated/?$" {
+    if ($request_method != "POST") {
+      add_header Allow "POST";
+      return 405;
+    }
+
+    proxy_pass_request_headers on;
+    proxy_redirect             off;
+    proxy_method               POST;
+    proxy_pass                 http://{{$AIO_UPLOAD_HOSTNAME}}:{{$AIO_UPLOAD_PORT}}$request_uri;
+
+    resolver 127.0.0.1;
+  }
+
   # Everything else
   location / {
     return 404;

aio/aio-builds-setup/dockerbuild/scripts-js/lib/clean-up/build-cleaner.ts

@@ -2,6 +2,7 @@
 import * as fs from 'fs';
 import * as path from 'path';
 import * as shell from 'shelljs';
+import {HIDDEN_DIR_PREFIX} from '../common/constants';
 import {GithubPullRequests} from '../common/github-pull-requests';
 import {assertNotMissingOrEmpty} from '../common/utils';
 
@@ -31,8 +32,9 @@ export class BuildCleaner {
         }
 
         const buildNumbers = files.
-          map(Number).       // Convert string to number
-          filter(Boolean);   // Ignore NaN (or 0), because they are not builds
+          map(name => name.replace(HIDDEN_DIR_PREFIX, '')).   // Remove the "hidden dir" prefix
+          map(Number).                                        // Convert string to number
+          filter(Boolean);                                    // Ignore NaN (or 0), because they are not builds
 
         resolve(buildNumbers);
       });
@@ -49,9 +51,11 @@ export class BuildCleaner {
 
   protected removeDir(dir: string) {
     try {
-      // Undocumented signature (see https://github.com/shelljs/shelljs/pull/663).
-      (shell as any).chmod('-R', 'a+w', dir);
-      shell.rm('-rf', dir);
+      if (shell.test('-d', dir)) {
+        // Undocumented signature (see https://github.com/shelljs/shelljs/pull/663).
+        (shell as any).chmod('-R', 'a+w', dir);
+        shell.rm('-rf', dir);
+      }
     } catch (err) {
       console.error(`ERROR: Unable to remove '${dir}' due to:`, err);
     }
@@ -64,8 +68,14 @@ export class BuildCleaner {
     console.log(`Open pull requests: ${openPrNumbers.length}`);
     console.log(`Removing ${toRemove.length} build(s): ${toRemove.join(', ')}`);
 
+    // Try removing public dirs.
     toRemove.
       map(num => path.join(this.buildsDir, String(num))).
       forEach(dir => this.removeDir(dir));
+
+    // Try removing hidden dirs.
+    toRemove.
+      map(num => path.join(this.buildsDir, HIDDEN_DIR_PREFIX + String(num))).
+      forEach(dir => this.removeDir(dir));
   }
 }

aio/aio-builds-setup/dockerbuild/scripts-js/lib/common/constants.ts

@@ -0,0 +1,3 @@
+// Constants
+export const HIDDEN_DIR_PREFIX = 'hidden--';
+export const SHORT_SHA_LEN = 7;

aio/aio-builds-setup/dockerbuild/scripts-js/lib/common/github-api.ts

@@ -63,7 +63,7 @@ export class GithubApi {
         return items;
       }
 
-      return this.getPaginated(pathname, baseParams, currentPage + 1).then(moreItems => [...items, ...moreItems]);
+      return this.getPaginated<T>(pathname, baseParams, currentPage + 1).then(moreItems => [...items, ...moreItems]);
     });
   }
 

aio/aio-builds-setup/dockerbuild/scripts-js/lib/common/github-pull-requests.ts

@@ -6,6 +6,7 @@ import {GithubApi} from './github-api';
 export interface PullRequest  {
   number: number;
   user: {login: string};
+  labels: {name: string}[];
 }
 
 export type PullRequestState = 'all' | 'closed' | 'open';
@@ -30,7 +31,8 @@ export class GithubPullRequests extends GithubApi {
   }
 
   public fetch(pr: number): Promise<PullRequest> {
-    return this.get<PullRequest>(`/repos/${this.repoSlug}/pulls/${pr}`);
+    // Using the `/issues/` URL, because the `/pulls/` one does not provide labels.
+    return this.get<PullRequest>(`/repos/${this.repoSlug}/issues/${pr}`);
   }
 
   public fetchAll(state: PullRequestState = 'all'): Promise<PullRequest[]> {

aio/aio-builds-setup/dockerbuild/scripts-js/lib/upload-server/build-creator.ts

@@ -4,8 +4,9 @@ import {EventEmitter} from 'events';
 import * as fs from 'fs';
 import * as path from 'path';
 import * as shell from 'shelljs';
+import {HIDDEN_DIR_PREFIX, SHORT_SHA_LEN} from '../common/constants';
 import {assertNotMissingOrEmpty} from '../common/utils';
-import {CreatedBuildEvent} from './build-events';
+import {ChangedPrVisibilityEvent, CreatedBuildEvent} from './build-events';
 import {UploadError} from './upload-error';
 
 // Classes
@@ -17,16 +18,22 @@ export class BuildCreator extends EventEmitter {
   }
 
   // Methods - Public
-  public create(pr: string, sha: string, archivePath: string): Promise<any> {
-    const prDir = path.join(this.buildsDir, pr);
+  public create(pr: string, sha: string, archivePath: string, isPublic: boolean): Promise<void> {
+    // Use only part of the SHA for more readable URLs.
+    sha = sha.substr(0, SHORT_SHA_LEN);
+
+    const {newPrDir: prDir} = this.getCandidatePrDirs(pr, isPublic);
     const shaDir = path.join(prDir, sha);
     let dirToRemoveOnError: string;
 
-    return Promise.
-      all([this.exists(prDir), this.exists(shaDir)]).
+    return Promise.resolve().
+      // If the same PR exists with different visibility, update the visibility first.
+      then(() => this.updatePrVisibility(pr, isPublic)).
+      then(() => Promise.all([this.exists(prDir), this.exists(shaDir)])).
       then(([prDirExisted, shaDirExisted]) => {
         if (shaDirExisted) {
-          throw new UploadError(409, `Request to overwrite existing directory: ${shaDir}`);
+          const publicOrNot = isPublic ? 'public' : 'non-public';
+          throw new UploadError(409, `Request to overwrite existing ${publicOrNot} directory: ${shaDir}`);
         }
 
         dirToRemoveOnError = prDirExisted ? shaDir : prDir;
@@ -34,7 +41,8 @@ export class BuildCreator extends EventEmitter {
         return Promise.resolve().
           then(() => shell.mkdir('-p', shaDir)).
           then(() => this.extractArchive(archivePath, shaDir)).
-          then(() => this.emit(CreatedBuildEvent.type, new CreatedBuildEvent(+pr, sha)));
+          then(() => this.emit(CreatedBuildEvent.type, new CreatedBuildEvent(+pr, sha, isPublic))).
+          then(() => undefined);
       }).
       catch(err => {
         if (dirToRemoveOnError) {
@@ -49,6 +57,36 @@ export class BuildCreator extends EventEmitter {
       });
   }
 
+  public updatePrVisibility(pr: string, makePublic: boolean): Promise<boolean> {
+    const {oldPrDir: otherVisPrDir, newPrDir: targetVisPrDir} = this.getCandidatePrDirs(pr, makePublic);
+
+    return Promise.
+      all([this.exists(otherVisPrDir), this.exists(targetVisPrDir)]).
+      then(([otherVisPrDirExisted, targetVisPrDirExisted]) => {
+        if (!otherVisPrDirExisted) {
+          // No visibility change: Either the visibility is up-to-date or the PR does not exist.
+          return false;
+        } else if (targetVisPrDirExisted) {
+          // Error: Directories for both visibilities exist.
+          throw new UploadError(409, `Request to move '${otherVisPrDir}' to existing directory '${targetVisPrDir}'.`);
+        }
+
+        // Visibility change: Moving `otherVisPrDir` to `targetVisPrDir`.
+        return Promise.resolve().
+          then(() => shell.mv(otherVisPrDir, targetVisPrDir)).
+          then(() => this.listShasByDate(targetVisPrDir)).
+          then(shas => this.emit(ChangedPrVisibilityEvent.type, new ChangedPrVisibilityEvent(+pr, shas, makePublic))).
+          then(() => true);
+      }).
+      catch(err => {
+        if (!(err instanceof UploadError)) {
+          err = new UploadError(500, `Error while making PR ${pr} ${makePublic ? 'public' : 'hidden'}.\n${err}`);
+        }
+
+        throw err;
+      });
+  }
+
   // Methods - Protected
   protected exists(fileOrDir: string): Promise<boolean> {
     return new Promise(resolve => fs.access(fileOrDir, err => resolve(!err)));
@@ -78,4 +116,26 @@ export class BuildCreator extends EventEmitter {
       });
     });
   }
+
+  protected getCandidatePrDirs(pr: string, isPublic: boolean) {
+    const hiddenPrDir = path.join(this.buildsDir, HIDDEN_DIR_PREFIX + pr);
+    const publicPrDir = path.join(this.buildsDir, pr);
+
+    const oldPrDir = isPublic ? hiddenPrDir : publicPrDir;
+    const newPrDir = isPublic ? publicPrDir : hiddenPrDir;
+
+    return {oldPrDir, newPrDir};
+  }
+
+  protected listShasByDate(inputDir: string): Promise<string[]> {
+    return Promise.resolve().
+      then(() => shell.ls('-l', inputDir) as any as Promise<(fs.Stats & {name: string})[]>).
+      // Keep directories only.
+      // (Also, convert to standard Array - ShellJS provides custom `sort()` method for sorting file contents.)
+      then(items => items.filter(item => item.isDirectory())).
+      // Sort by modification date.
+      then(items => items.sort((a, b) => a.mtime.getTime() - b.mtime.getTime())).
+      // Return directory names.
+      then(items => items.map(item => item.name));
+  }
 }

aio/aio-builds-setup/dockerbuild/scripts-js/lib/upload-server/build-events.ts

@@ -1,15 +1,16 @@
 // Classes
-export class BuildEvent {
+export class ChangedPrVisibilityEvent {
+  // Properties - Public, Static
+  public static type = 'pr.changedVisibility';
+
   // Constructor
-  constructor(public type: string, public pr: number, public sha: string) {}
+  constructor(public pr: number, public shas: string[], public isPublic: boolean) {}
 }
 
-export class CreatedBuildEvent extends BuildEvent {
+export class CreatedBuildEvent {
   // Properties - Public, Static
   public static type = 'build.created';
 
   // Constructor
-  constructor(pr: number, sha: string) {
-    super(CreatedBuildEvent.type, pr, sha);
-  }
+  constructor(public pr: number, public sha: string, public isPublic: boolean) {}
 }

aio/aio-builds-setup/dockerbuild/scripts-js/lib/upload-server/build-verifier.ts

@@ -1,6 +1,6 @@
 // Imports
 import * as jwt from 'jsonwebtoken';
-import {GithubPullRequests} from '../common/github-pull-requests';
+import {GithubPullRequests, PullRequest} from '../common/github-pull-requests';
 import {GithubTeams} from '../common/github-teams';
 import {assertNotMissingOrEmpty} from '../common/utils';
 import {UploadError} from './upload-error';
@@ -11,6 +11,12 @@ interface JwtPayload {
   'pull-request': number;
 }
 
+// Enums
+export enum BUILD_VERIFICATION_STATUS {
+  verifiedAndTrusted,
+  verifiedNotTrusted,
+}
+
 // Classes
 export class BuildVerifier {
   // Properties - Protected
@@ -19,27 +25,27 @@ export class BuildVerifier {
 
   // Constructor
   constructor(protected secret: string, githubToken: string, protected repoSlug: string, organization: string,
-              protected allowedTeamSlugs: string[]) {
+              protected allowedTeamSlugs: string[], protected trustedPrLabel: string) {
     assertNotMissingOrEmpty('secret', secret);
     assertNotMissingOrEmpty('githubToken', githubToken);
     assertNotMissingOrEmpty('repoSlug', repoSlug);
     assertNotMissingOrEmpty('organization', organization);
     assertNotMissingOrEmpty('allowedTeamSlugs', allowedTeamSlugs && allowedTeamSlugs.join(''));
+    assertNotMissingOrEmpty('trustedPrLabel', trustedPrLabel);
 
     this.githubPullRequests = new GithubPullRequests(githubToken, repoSlug);
     this.githubTeams = new GithubTeams(githubToken, organization);
   }
 
   // Methods - Public
-  public getPrAuthorTeamMembership(pr: number): Promise<{author: string, isMember: boolean}> {
+  public getPrIsTrusted(pr: number): Promise<boolean> {
     return Promise.resolve().
       then(() => this.githubPullRequests.fetch(pr)).
-      then(prInfo => prInfo.user.login).
-      then(author => this.githubTeams.isMemberBySlug(author, this.allowedTeamSlugs).
-        then(isMember => ({author, isMember})));
+      then(prInfo => this.hasLabel(prInfo, this.trustedPrLabel) ||
+                     this.githubTeams.isMemberBySlug(prInfo.user.login, this.allowedTeamSlugs));
   }
 
-  public verify(expectedPr: number, authHeader: string): Promise<void> {
+  public verify(expectedPr: number, authHeader: string): Promise<BUILD_VERIFICATION_STATUS> {
     return Promise.resolve().
       then(() => this.extractJwtString(authHeader)).
       then(jwtString => this.verifyJwt(expectedPr, jwtString)).
@@ -52,9 +58,13 @@ export class BuildVerifier {
     return input.replace(/^token +/i, '');
   }
 
+  protected hasLabel(prInfo: PullRequest, label: string) {
+    return prInfo.labels.some(labelObj => labelObj.name === label);
+  }
+
   protected verifyJwt(expectedPr: number, token: string): Promise<JwtPayload> {
     return new Promise((resolve, reject) => {
-      jwt.verify(token, this.secret, {issuer: 'Travis CI, GmbH'}, (err, payload) => {
+      jwt.verify(token, this.secret, {issuer: 'Travis CI, GmbH'}, (err, payload: JwtPayload) => {
         if (err) {
           reject(err.message || err);
         } else if (payload.slug !== this.repoSlug) {
@@ -68,11 +78,10 @@ export class BuildVerifier {
     });
   }
 
-  protected verifyPr(pr: number): Promise<void> {
-    return this.getPrAuthorTeamMembership(pr).
-      then(({author, isMember}) => isMember ? Promise.resolve() : Promise.reject(
-        `User '${author}' is not an active member of any of the following teams: ` +
-        `${this.allowedTeamSlugs.join(', ')}`,
-      ));
+  protected verifyPr(pr: number): Promise<BUILD_VERIFICATION_STATUS> {
+    return this.getPrIsTrusted(pr).
+      then(isTrusted => Promise.resolve(isTrusted ?
+          BUILD_VERIFICATION_STATUS.verifiedAndTrusted :
+          BUILD_VERIFICATION_STATUS.verifiedNotTrusted));
   }
 }

aio/aio-builds-setup/dockerbuild/scripts-js/lib/upload-server/index-preverify-pr.ts

@@ -12,28 +12,28 @@ function _main() {
   const repoSlug = getEnvVar('AIO_REPO_SLUG');
   const organization = getEnvVar('AIO_GITHUB_ORGANIZATION');
   const allowedTeamSlugs = getEnvVar('AIO_GITHUB_TEAM_SLUGS').split(',');
+  const trustedPrLabel = getEnvVar('AIO_TRUSTED_PR_LABEL');
   const pr = +getEnvVar('AIO_PREVERIFY_PR');
 
-  const buildVerifier = new BuildVerifier(secret, githubToken, repoSlug, organization, allowedTeamSlugs);
+  const buildVerifier = new BuildVerifier(secret, githubToken, repoSlug, organization, allowedTeamSlugs,
+                                          trustedPrLabel);
 
   // Exit codes:
-  // - 0: The PR author is a member.
+  // - 0: The PR can be automatically trusted (i.e. author belongs to trusted team or PR has the "trusted PR" label).
   // - 1: An error occurred.
-  // - 2: The PR author is not a member.
-  buildVerifier.getPrAuthorTeamMembership(pr).
-    then(({author, isMember}) => {
-      if (isMember) {
-        process.exit(0);
-      } else {
-        const errorMessage = `User '${author}' is not an active member of any of the following teams: ` +
-                             `${allowedTeamSlugs.join(', ')}`;
-        onError(errorMessage, 2);
+  // - 2: The PR cannot be automatically trusted.
+  buildVerifier.getPrIsTrusted(pr).
+    then(isTrusted => {
+      if (!isTrusted) {
+        console.warn(
+            `The PR cannot be automatically verified, because it doesn't have the "${trustedPrLabel}" label and the ` +
+            `the author is not an active member of any of the following teams: ${allowedTeamSlugs.join(', ')}`);
       }
-    }).
-    catch(err => onError(err, 1));
-}
 
-function onError(err: string, exitCode: number) {
-  console.error(err);
-  process.exit(exitCode || 1);
+      process.exit(isTrusted ? 0 : 2);
+    }).
+    catch(err => {
+      console.error(err);
+      process.exit(1);
+    });
 }

aio/aio-builds-setup/dockerbuild/scripts-js/lib/upload-server/index-test.ts

@@ -1,10 +0,0 @@
-// Imports
-import {GithubPullRequests} from '../common/github-pull-requests';
-import {BuildVerifier} from './build-verifier';
-
-// Run
-// TODO(gkalpak): Add e2e tests to cover these interactions as well.
-GithubPullRequests.prototype.addComment = () => Promise.resolve();
-BuildVerifier.prototype.verify = () => Promise.resolve();
-// tslint:disable-next-line: no-var-requires
-require('./index');

aio/aio-builds-setup/dockerbuild/scripts-js/lib/upload-server/index.ts

@@ -10,12 +10,11 @@ const AIO_GITHUB_TEAM_SLUGS = getEnvVar('AIO_GITHUB_TEAM_SLUGS');
 const AIO_GITHUB_TOKEN = getEnvVar('AIO_GITHUB_TOKEN');
 const AIO_PREVIEW_DEPLOYMENT_TOKEN = getEnvVar('AIO_PREVIEW_DEPLOYMENT_TOKEN');
 const AIO_REPO_SLUG = getEnvVar('AIO_REPO_SLUG');
+const AIO_TRUSTED_PR_LABEL = getEnvVar('AIO_TRUSTED_PR_LABEL');
 const AIO_UPLOAD_HOSTNAME = getEnvVar('AIO_UPLOAD_HOSTNAME');
 const AIO_UPLOAD_PORT = +getEnvVar('AIO_UPLOAD_PORT');
-const AIO_WWW_USER = getEnvVar('AIO_WWW_USER');
 
 // Run
-process.setuid(AIO_WWW_USER);   // TODO(gkalpak): Find more suitable way to run as `www-data`.
 _main();
 
 // Functions
@@ -29,6 +28,7 @@ function _main() {
       githubToken: AIO_GITHUB_TOKEN,
       repoSlug: AIO_REPO_SLUG,
       secret: AIO_PREVIEW_DEPLOYMENT_TOKEN,
+      trustedPrLabel: AIO_TRUSTED_PR_LABEL,
     }).
     listen(AIO_UPLOAD_PORT, AIO_UPLOAD_HOSTNAME);
 }

aio/aio-builds-setup/dockerbuild/scripts-js/lib/upload-server/upload-server-factory.ts

@@ -1,11 +1,12 @@
 // Imports
+import * as bodyParser from 'body-parser';
 import * as express from 'express';
 import * as http from 'http';
 import {GithubPullRequests} from '../common/github-pull-requests';
 import {assertNotMissingOrEmpty} from '../common/utils';
 import {BuildCreator} from './build-creator';
-import {CreatedBuildEvent} from './build-events';
-import {BuildVerifier} from './build-verifier';
+import {ChangedPrVisibilityEvent, CreatedBuildEvent} from './build-events';
+import {BUILD_VERIFICATION_STATUS, BuildVerifier} from './build-verifier';
 import {UploadError} from './upload-error';
 
 // Constants
@@ -21,6 +22,7 @@ interface UploadServerConfig {
   githubToken: string;
   repoSlug: string;
   secret: string;
+  trustedPrLabel: string;
 }
 
 // Classes
@@ -34,14 +36,16 @@ class UploadServerFactory {
     githubToken,
     repoSlug,
     secret,
+    trustedPrLabel,
   }: UploadServerConfig): http.Server {
     assertNotMissingOrEmpty('domainName', domainName);
 
-    const buildVerifier = new BuildVerifier(secret, githubToken, repoSlug, githubOrganization, githubTeamSlugs);
+    const buildVerifier = new BuildVerifier(secret, githubToken, repoSlug, githubOrganization, githubTeamSlugs,
+                                            trustedPrLabel);
     const buildCreator = this.createBuildCreator(buildsDir, githubToken, repoSlug, domainName);
 
     const middleware = this.createMiddleware(buildVerifier, buildCreator);
-    const httpServer = http.createServer(middleware);
+    const httpServer = http.createServer(middleware as any);
 
     httpServer.on('listening', () => {
       const info = httpServer.address();
@@ -56,12 +60,24 @@ class UploadServerFactory {
                                domainName: string): BuildCreator {
     const buildCreator = new BuildCreator(buildsDir);
     const githubPullRequests = new GithubPullRequests(githubToken, repoSlug);
+    const postPreviewsComment = (pr: number, shas: string[]) => {
+      const body = shas.
+        map(sha => `You can preview ${sha} at https://pr${pr}-${sha}.${domainName}/.`).
+        join('\n');
 
-    buildCreator.on(CreatedBuildEvent.type, ({pr, sha}: CreatedBuildEvent) => {
-      const body = `The angular.io preview for ${sha} is available [here][1].\n\n` +
-                   `[1]: https://pr${pr}-${sha}.${domainName}/`;
+      return githubPullRequests.addComment(pr, body);
+    };
 
-      githubPullRequests.addComment(pr, body);
+    buildCreator.on(CreatedBuildEvent.type, ({pr, sha, isPublic}: CreatedBuildEvent) => {
+      if (isPublic) {
+        postPreviewsComment(pr, [sha]);
+      }
+    });
+
+    buildCreator.on(ChangedPrVisibilityEvent.type, ({pr, shas, isPublic}: ChangedPrVisibilityEvent) => {
+      if (isPublic && shas.length) {
+        postPreviewsComment(pr, shas);
+      }
     });
 
     return buildCreator;
@@ -69,6 +85,7 @@ class UploadServerFactory {
 
   protected createMiddleware(buildVerifier: BuildVerifier, buildCreator: BuildCreator): express.Express {
     const middleware = express();
+    const jsonParser = bodyParser.json();
 
     middleware.get(/^\/create-build\/([1-9][0-9]*)\/([0-9a-f]{40})\/?$/, (req, res) => {
       const pr = req.params[0];
@@ -80,17 +97,33 @@ class UploadServerFactory {
         this.throwRequestError(401, `Missing or empty '${AUTHORIZATION_HEADER}' header`, req);
       } else if (!archive) {
         this.throwRequestError(400, `Missing or empty '${X_FILE_HEADER}' header`, req);
+      } else {
+        Promise.resolve().
+          then(() => buildVerifier.verify(+pr, authHeader)).
+          then(verStatus => verStatus === BUILD_VERIFICATION_STATUS.verifiedAndTrusted).
+          then(isPublic => buildCreator.create(pr, sha, archive, isPublic).
+            then(() => res.sendStatus(isPublic ? 201 : 202))).
+          catch(err => this.respondWithError(res, err));
       }
-
-      buildVerifier.
-        verify(+pr, authHeader).
-        then(() => buildCreator.create(pr, sha, archive)).
-        then(() => res.sendStatus(201)).
-        catch(err => this.respondWithError(res, err));
     });
     middleware.get(/^\/health-check\/?$/, (_req, res) => res.sendStatus(200));
-    middleware.get('*', req => this.throwRequestError(404, 'Unknown resource', req));
-    middleware.all('*', req => this.throwRequestError(405, 'Unsupported method', req));
+    middleware.post(/^\/pr-updated\/?$/, jsonParser, (req, res) => {
+      const {action, number: prNo}: {action?: string, number?: number} = req.body;
+      const visMayHaveChanged = !action || (action === 'labeled') || (action === 'unlabeled');
+
+      if (!visMayHaveChanged) {
+        res.sendStatus(200);
+      } else if (!prNo) {
+        this.throwRequestError(400, `Missing or empty 'number' field`, req);
+      } else {
+        Promise.resolve().
+          then(() => buildVerifier.getPrIsTrusted(prNo)).
+          then(isPublic => buildCreator.updatePrVisibility(String(prNo), isPublic)).
+          then(() => res.sendStatus(200)).
+          catch(err => this.respondWithError(res, err));
+      }
+    });
+    middleware.all('*', req => this.throwRequestError(404, 'Unknown resource', req));
     middleware.use((err: any, _req: any, res: express.Response, _next: any) => this.respondWithError(res, err));
 
     return middleware;
@@ -109,7 +142,10 @@ class UploadServerFactory {
   }
 
   protected throwRequestError(status: number, error: string, req: express.Request) {
-    throw new UploadError(status, `${error} in request: ${req.method} ${req.originalUrl}`);
+    const message = `${error} in request: ${req.method} ${req.originalUrl}` +
+                    (!req.body ? '' : ` ${JSON.stringify(req.body)}`);
+
+    throw new UploadError(status, message);
   }
 }
 

aio/aio-builds-setup/dockerbuild/scripts-js/lib/verify-setup/constants.ts

@@ -0,0 +1,16 @@
+// Using the values below, we can fake the response of the corresponding methods in tests. This is
+// necessary, because the test upload-server will be running as a separate node process, so we will
+// not have direct access to the code (e.g. for mocking).
+// (See also 'lib/verify-setup/start-test-upload-server.ts'.)
+
+/* tslint:disable: variable-name */
+
+// Special values to be used as `authHeader` in `BuildVerifier#verify()`.
+export const BV_verify_error = 'FAKE_VERIFICATION_ERROR';
+export const BV_verify_verifiedNotTrusted = 'FAKE_VERIFIED_NOT_TRUSTED';
+
+// Special values to be used as `pr` in `BuildVerifier#getPrIsTrusted()`.
+export const BV_getPrIsTrusted_error = 32203;
+export const BV_getPrIsTrusted_notTrusted = 72457;
+
+/* tslint:enable: variable-name */

aio/aio-builds-setup/dockerbuild/scripts-js/lib/verify-setup/helper.ts

@@ -4,6 +4,7 @@ import * as fs from 'fs';
 import * as http from 'http';
 import * as path from 'path';
 import * as shell from 'shelljs';
+import {HIDDEN_DIR_PREFIX, SHORT_SHA_LEN} from '../common/constants';
 import {getEnvVar} from '../common/utils';
 
 // Constans
@@ -17,7 +18,7 @@ const TEST_AIO_UPLOAD_PORT = +getEnvVar('TEST_AIO_UPLOAD_PORT');
 const WWW_USER = getEnvVar('AIO_WWW_USER');
 
 // Interfaces - Types
-export interface CmdResult { success: boolean; err: Error; stdout: string; stderr: string; }
+export interface CmdResult { success: boolean; err: Error | null; stdout: string; stderr: string; }
 export interface FileSpecs { content?: string; size?: number; }
 
 export type CleanUpFn = () => void;
@@ -31,10 +32,10 @@ class Helper {
   public get nginxHostname() { return TEST_AIO_NGINX_HOSTNAME; }
   public get nginxPortHttp() { return TEST_AIO_NGINX_PORT_HTTP; }
   public get nginxPortHttps() { return TEST_AIO_NGINX_PORT_HTTPS; }
-  public get wwwUser() { return WWW_USER; }
   public get uploadHostname() { return TEST_AIO_UPLOAD_HOSTNAME; }
   public get uploadPort() { return TEST_AIO_UPLOAD_PORT; }
   public get uploadMaxSize() { return TEST_AIO_UPLOAD_MAX_SIZE; }
+  public get wwwUser() { return WWW_USER; }
 
   // Properties - Protected
   protected cleanUpFns: CleanUpFn[] = [];
@@ -50,6 +51,12 @@ class Helper {
   }
 
   // Methods - Public
+  public buildExists(pr: string, sha = '', isPublic = true, legacy = false): boolean {
+    const prDir = this.getPrDir(pr, isPublic);
+    const dir = !sha ? prDir : this.getShaDir(prDir, sha, legacy);
+    return fs.existsSync(dir);
+  }
+
   public cleanUp() {
     while (this.cleanUpFns.length) {
       // Clean-up fns remove themselves from the list.
@@ -62,11 +69,11 @@ class Helper {
   }
 
   public createDummyArchive(pr: string, sha: string, archivePath: string): CleanUpFn {
-    const inputDir = path.join(this.buildsDir, 'uploaded', pr, sha);
+    const inputDir = this.getShaDir(this.getPrDir(`uploaded/${pr}`, true), sha);
     const cmd1 = `tar --create --gzip --directory "${inputDir}" --file "${archivePath}" .`;
     const cmd2 = `chown ${this.wwwUser} ${archivePath}`;
 
-    const cleanUpTemp = this.createDummyBuild(`uploaded/${pr}`, sha, true);
+    const cleanUpTemp = this.createDummyBuild(`uploaded/${pr}`, sha, true, true);
     shell.exec(cmd1);
     shell.exec(cmd2);
     cleanUpTemp();
@@ -74,9 +81,9 @@ class Helper {
     return this.createCleanUpFn(() => shell.rm('-rf', archivePath));
   }
 
-  public createDummyBuild(pr: string, sha: string, force = false): CleanUpFn {
-    const prDir = path.join(this.buildsDir, pr);
-    const shaDir = path.join(prDir, sha);
+  public createDummyBuild(pr: string, sha: string, isPublic = true, force = false, legacy = false): CleanUpFn {
+    const prDir = this.getPrDir(pr, isPublic);
+    const shaDir = this.getShaDir(prDir, sha, legacy);
     const idxPath = path.join(shaDir, 'index.html');
     const barPath = path.join(shaDir, 'foo', 'bar.js');
 
@@ -87,8 +94,8 @@ class Helper {
     return this.createCleanUpFn(() => shell.rm('-rf', prDir));
   }
 
-  public deletePrDir(pr: string) {
-    const prDir = path.join(this.buildsDir, pr);
+  public deletePrDir(pr: string, isPublic = true) {
+    const prDir = this.getPrDir(pr, isPublic);
 
     if (fs.existsSync(prDir)) {
       // Undocumented signature (see https://github.com/shelljs/shelljs/pull/663).
@@ -97,8 +104,22 @@ class Helper {
     }
   }
 
-  public readBuildFile(pr: string, sha: string, relFilePath: string): string {
-    const absFilePath = path.join(this.buildsDir, pr, sha, relFilePath);
+  public getPrDir(pr: string, isPublic: boolean): string {
+    const prDirName = isPublic ? pr : HIDDEN_DIR_PREFIX + pr;
+    return path.join(this.buildsDir, prDirName);
+  }
+
+  public getShaDir(prDir: string, sha: string, legacy = false): string {
+    return path.join(prDir, legacy ? sha : this.getShordSha(sha));
+  }
+
+  public getShordSha(sha: string): string {
+    return sha.substr(0, SHORT_SHA_LEN);
+  }
+
+  public readBuildFile(pr: string, sha: string, relFilePath: string, isPublic = true, legacy = false): string {
+    const shaDir = this.getShaDir(this.getPrDir(pr, isPublic), sha, legacy);
+    const absFilePath = path.join(shaDir, relFilePath);
     return fs.readFileSync(absFilePath, 'utf8');
   }
 
@@ -122,14 +143,15 @@ class Helper {
       statusText = status[1];
     } else {
       statusCode = status;
-      statusText = http.STATUS_CODES[statusCode];
+      statusText = http.STATUS_CODES[statusCode] || 'UNKNOWN_STATUS_CODE';
     }
 
     return (result: CmdResult) => {
       const [headers, body] = result.stdout.
         split(/(?:\r?\n){2,}/).
         map(s => s.trim()).
-        slice(-2);
+        slice(-2);   // In case of redirect, discard the previous headers.
+                     // Only keep the last to sections (final headers and body).
 
       if (!result.success) {
         console.log('Stdout:', result.stdout);
@@ -143,8 +165,10 @@ class Helper {
     };
   }
 
-  public writeBuildFile(pr: string, sha: string, relFilePath: string, content: string): CleanUpFn {
-    const absFilePath = path.join(this.buildsDir, pr, sha, relFilePath);
+  public writeBuildFile(pr: string, sha: string, relFilePath: string, content: string, isPublic = true,
+                        legacy = false): CleanUpFn {
+    const shaDir = this.getShaDir(this.getPrDir(pr, isPublic), sha, legacy);
+    const absFilePath = path.join(shaDir, relFilePath);
     return this.writeFile(absFilePath, {content}, true);
   }
 
@@ -172,7 +196,7 @@ class Helper {
   }
 
   // Methods - Protected
-  protected createCleanUpFn(fn: Function): CleanUpFn {
+  protected createCleanUpFn(fn: () => void): CleanUpFn {
     const cleanUpFn = () => {
       const idx = this.cleanUpFns.indexOf(cleanUpFn);
       if (idx !== -1) {

aio/aio-builds-setup/dockerbuild/scripts-js/lib/verify-setup/nginx.e2e.ts

@@ -31,111 +31,184 @@ describe(`nginx`, () => {
   });
 
 
-  h.runForAllSupportedSchemes((scheme, port) => describe(`nginx (on ${scheme.toUpperCase()})`, () => {
+  h.runForAllSupportedSchemes((scheme, port) => describe(`(on ${scheme.toUpperCase()})`, () => {
     const hostname = h.nginxHostname;
     const host = `${hostname}:${port}`;
     const pr = '9';
     const sha9 = '9'.repeat(40);
     const sha0 = '0'.repeat(40);
+    const shortSha9 = h.getShordSha(sha9);
+    const shortSha0 = h.getShordSha(sha0);
 
 
     describe(`pr<pr>-<sha>.${host}/*`, () => {
 
-      beforeEach(() => {
-        h.createDummyBuild(pr, sha9);
-        h.createDummyBuild(pr, sha0);
+      describe('(for public builds)', () => {
+
+        beforeEach(() => {
+          h.createDummyBuild(pr, sha9);
+          h.createDummyBuild(pr, sha0);
+        });
+
+
+        it('should return /index.html', done => {
+          const origin = `${scheme}://pr${pr}-${shortSha9}.${host}`;
+          const bodyRegex = new RegExp(`^PR: ${pr} | SHA: ${sha9} | File: /index\\.html$`);
+
+          Promise.all([
+            h.runCmd(`curl -iL ${origin}/index.html`).then(h.verifyResponse(200, bodyRegex)),
+            h.runCmd(`curl -iL ${origin}/`).then(h.verifyResponse(200, bodyRegex)),
+            h.runCmd(`curl -iL ${origin}`).then(h.verifyResponse(200, bodyRegex)),
+          ]).then(done);
+        });
+
+
+        it('should return /index.html (for legacy builds)', done => {
+          const origin = `${scheme}://pr${pr}-${sha9}.${host}`;
+          const bodyRegex = new RegExp(`^PR: ${pr} | SHA: ${sha9} | File: /index\\.html$`);
+
+          h.createDummyBuild(pr, sha9, true, false, true);
+
+          Promise.all([
+            h.runCmd(`curl -iL ${origin}/index.html`).then(h.verifyResponse(200, bodyRegex)),
+            h.runCmd(`curl -iL ${origin}/`).then(h.verifyResponse(200, bodyRegex)),
+            h.runCmd(`curl -iL ${origin}`).then(h.verifyResponse(200, bodyRegex)),
+          ]).then(done);
+        });
+
+
+        it('should return /foo/bar.js', done => {
+          const bodyRegex = new RegExp(`^PR: ${pr} | SHA: ${sha9} | File: /foo/bar\\.js$`);
+
+          h.runCmd(`curl -iL ${scheme}://pr${pr}-${shortSha9}.${host}/foo/bar.js`).
+            then(h.verifyResponse(200, bodyRegex)).
+            then(done);
+        });
+
+
+        it('should return /foo/bar.js (for legacy builds)', done => {
+          const origin = `${scheme}://pr${pr}-${sha9}.${host}`;
+          const bodyRegex = new RegExp(`^PR: ${pr} | SHA: ${sha9} | File: /foo/bar\\.js$`);
+
+          h.createDummyBuild(pr, sha9, true, false, true);
+
+          h.runCmd(`curl -iL ${origin}/foo/bar.js`).
+            then(h.verifyResponse(200, bodyRegex)).
+            then(done);
+        });
+
+
+        it('should respond with 403 for directories', done => {
+          Promise.all([
+            h.runCmd(`curl -iL ${scheme}://pr${pr}-${shortSha9}.${host}/foo/`).then(h.verifyResponse(403)),
+            h.runCmd(`curl -iL ${scheme}://pr${pr}-${shortSha9}.${host}/foo`).then(h.verifyResponse(403)),
+          ]).then(done);
+        });
+
+
+        it('should respond with 404 for unknown paths to files', done => {
+          h.runCmd(`curl -iL ${scheme}://pr${pr}-${shortSha9}.${host}/foo/baz.css`).
+            then(h.verifyResponse(404)).
+            then(done);
+        });
+
+
+        it('should rewrite to \'index.html\' for unknown paths that don\'t look like files', done => {
+          const origin = `${scheme}://pr${pr}-${shortSha9}.${host}`;
+          const bodyRegex = new RegExp(`^PR: ${pr} | SHA: ${sha9} | File: /index\\.html$`);
+
+          Promise.all([
+            h.runCmd(`curl -iL ${origin}/foo/baz`).then(h.verifyResponse(200, bodyRegex)),
+            h.runCmd(`curl -iL ${origin}/foo/baz/`).then(h.verifyResponse(200, bodyRegex)),
+          ]).then(done);
+        });
+
+
+        it('should respond with 404 for unknown PRs/SHAs', done => {
+          const otherPr = 54321;
+          const otherShortSha = h.getShordSha('8'.repeat(40));
+
+          Promise.all([
+            h.runCmd(`curl -iL ${scheme}://pr${pr}9-${shortSha9}.${host}`).then(h.verifyResponse(404)),
+            h.runCmd(`curl -iL ${scheme}://pr${otherPr}-${shortSha9}.${host}`).then(h.verifyResponse(404)),
+            h.runCmd(`curl -iL ${scheme}://pr${pr}-${shortSha9}9.${host}`).then(h.verifyResponse(404)),
+            h.runCmd(`curl -iL ${scheme}://pr${pr}-${otherShortSha}.${host}`).then(h.verifyResponse(404)),
+          ]).then(done);
+        });
+
+
+        it('should respond with 404 if the subdomain format is wrong', done => {
+          Promise.all([
+            h.runCmd(`curl -iL ${scheme}://xpr${pr}-${shortSha9}.${host}`).then(h.verifyResponse(404)),
+            h.runCmd(`curl -iL ${scheme}://prx${pr}-${shortSha9}.${host}`).then(h.verifyResponse(404)),
+            h.runCmd(`curl -iL ${scheme}://xx${pr}-${shortSha9}.${host}`).then(h.verifyResponse(404)),
+            h.runCmd(`curl -iL ${scheme}://p${pr}-${shortSha9}.${host}`).then(h.verifyResponse(404)),
+            h.runCmd(`curl -iL ${scheme}://r${pr}-${shortSha9}.${host}`).then(h.verifyResponse(404)),
+            h.runCmd(`curl -iL ${scheme}://${pr}-${shortSha9}.${host}`).then(h.verifyResponse(404)),
+            h.runCmd(`curl -iL ${scheme}://pr${pr}${shortSha9}.${host}`).then(h.verifyResponse(404)),
+            h.runCmd(`curl -iL ${scheme}://pr${pr}_${shortSha9}.${host}`).then(h.verifyResponse(404)),
+          ]).then(done);
+        });
+
+
+        it('should reject PRs with leading zeros', done => {
+          h.runCmd(`curl -iL ${scheme}://pr0${pr}-${shortSha9}.${host}`).
+            then(h.verifyResponse(404)).
+            then(done);
+        });
+
+
+        it('should accept SHAs with leading zeros (but not trim the zeros)', done => {
+          const bodyRegex9 = new RegExp(`^PR: ${pr} | SHA: ${sha9} | File: /index\\.html$`);
+          const bodyRegex0 = new RegExp(`^PR: ${pr} | SHA: ${sha0} | File: /index\\.html$`);
+
+          Promise.all([
+            h.runCmd(`curl -iL ${scheme}://pr${pr}-0${shortSha9}.${host}`).then(h.verifyResponse(404)),
+            h.runCmd(`curl -iL ${scheme}://pr${pr}-${shortSha9}.${host}`).then(h.verifyResponse(200, bodyRegex9)),
+            h.runCmd(`curl -iL ${scheme}://pr${pr}-${shortSha0}.${host}`).then(h.verifyResponse(200, bodyRegex0)),
+          ]).then(done);
+        });
+
       });
 
 
-      it('should return /index.html', done => {
-        const origin = `${scheme}://pr${pr}-${sha9}.${host}`;
-        const bodyRegex = new RegExp(`^PR: ${pr} | SHA: ${sha9} | File: /index\\.html$`);
+      describe('(for hidden builds)', () => {
 
-        Promise.all([
-          h.runCmd(`curl -iL ${origin}/index.html`).then(h.verifyResponse(200, bodyRegex)),
-          h.runCmd(`curl -iL ${origin}/`).then(h.verifyResponse(200, bodyRegex)),
-          h.runCmd(`curl -iL ${origin}`).then(h.verifyResponse(200, bodyRegex)),
-        ]).then(done);
-      });
+        it('should respond with 404 for any file or directory', done => {
+          const origin = `${scheme}://pr${pr}-${shortSha9}.${host}`;
+          const assert404 = h.verifyResponse(404);
+
+          h.createDummyBuild(pr, sha9, false);
+          expect(h.buildExists(pr, sha9, false)).toBe(true);
+
+          Promise.all([
+            h.runCmd(`curl -iL ${origin}/index.html`).then(assert404),
+            h.runCmd(`curl -iL ${origin}/`).then(assert404),
+            h.runCmd(`curl -iL ${origin}`).then(assert404),
+            h.runCmd(`curl -iL ${origin}/foo/bar.js`).then(assert404),
+            h.runCmd(`curl -iL ${origin}/foo/`).then(assert404),
+            h.runCmd(`curl -iL ${origin}/foo`).then(assert404),
+          ]).then(done);
+        });
 
 
-      it('should return /foo/bar.js', done => {
-        const bodyRegex = new RegExp(`^PR: ${pr} | SHA: ${sha9} | File: /foo/bar\\.js$`);
+        it('should respond with 404 for any file or directory (for legacy builds)', done => {
+          const origin = `${scheme}://pr${pr}-${sha9}.${host}`;
+          const assert404 = h.verifyResponse(404);
 
-        h.runCmd(`curl -iL ${scheme}://pr${pr}-${sha9}.${host}/foo/bar.js`).
-          then(h.verifyResponse(200, bodyRegex)).
-          then(done);
-      });
+          h.createDummyBuild(pr, sha9, false, false, true);
+          expect(h.buildExists(pr, sha9, false, true)).toBe(true);
 
+          Promise.all([
+            h.runCmd(`curl -iL ${origin}/index.html`).then(assert404),
+            h.runCmd(`curl -iL ${origin}/`).then(assert404),
+            h.runCmd(`curl -iL ${origin}`).then(assert404),
+            h.runCmd(`curl -iL ${origin}/foo/bar.js`).then(assert404),
+            h.runCmd(`curl -iL ${origin}/foo/`).then(assert404),
+            h.runCmd(`curl -iL ${origin}/foo`).then(assert404),
+          ]).then(done);
+        });
 
-      it('should respond with 403 for directories', done => {
-        Promise.all([
-          h.runCmd(`curl -iL ${scheme}://pr${pr}-${sha9}.${host}/foo/`).then(h.verifyResponse(403)),
-          h.runCmd(`curl -iL ${scheme}://pr${pr}-${sha9}.${host}/foo`).then(h.verifyResponse(403)),
-        ]).then(done);
-      });
-
-
-      it('should respond with 404 for unknown paths to files', done => {
-        h.runCmd(`curl -iL ${scheme}://pr${pr}-${sha9}.${host}/foo/baz.css`).
-          then(h.verifyResponse(404)).
-          then(done);
-      });
-
-
-      it('should rewrite to \'index.html\' for unknown paths that don\'t look like files', done => {
-        const bodyRegex = new RegExp(`^PR: ${pr} | SHA: ${sha9} | File: /index\\.html$`);
-
-        Promise.all([
-          h.runCmd(`curl -iL ${scheme}://pr${pr}-${sha9}.${host}/foo/baz`).then(h.verifyResponse(200, bodyRegex)),
-          h.runCmd(`curl -iL ${scheme}://pr${pr}-${sha9}.${host}/foo/baz/`).then(h.verifyResponse(200, bodyRegex)),
-        ]).then(done);
-      });
-
-
-      it('should respond with 404 for unknown PRs/SHAs', done => {
-        const otherPr = 54321;
-        const otherSha = '8'.repeat(40);
-
-        Promise.all([
-          h.runCmd(`curl -iL ${scheme}://pr${pr}9-${sha9}.${host}`).then(h.verifyResponse(404)),
-          h.runCmd(`curl -iL ${scheme}://pr${otherPr}-${sha9}.${host}`).then(h.verifyResponse(404)),
-          h.runCmd(`curl -iL ${scheme}://pr${pr}-${sha9}9.${host}`).then(h.verifyResponse(404)),
-          h.runCmd(`curl -iL ${scheme}://pr${pr}-${otherSha}.${host}`).then(h.verifyResponse(404)),
-        ]).then(done);
-      });
-
-
-      it('should respond with 404 if the subdomain format is wrong', done => {
-        Promise.all([
-          h.runCmd(`curl -iL ${scheme}://xpr${pr}-${sha9}.${host}`).then(h.verifyResponse(404)),
-          h.runCmd(`curl -iL ${scheme}://prx${pr}-${sha9}.${host}`).then(h.verifyResponse(404)),
-          h.runCmd(`curl -iL ${scheme}://xx${pr}-${sha9}.${host}`).then(h.verifyResponse(404)),
-          h.runCmd(`curl -iL ${scheme}://p${pr}-${sha9}.${host}`).then(h.verifyResponse(404)),
-          h.runCmd(`curl -iL ${scheme}://r${pr}-${sha9}.${host}`).then(h.verifyResponse(404)),
-          h.runCmd(`curl -iL ${scheme}://${pr}-${sha9}.${host}`).then(h.verifyResponse(404)),
-          h.runCmd(`curl -iL ${scheme}://pr${pr}${sha9}.${host}`).then(h.verifyResponse(404)),
-          h.runCmd(`curl -iL ${scheme}://pr${pr}_${sha9}.${host}`).then(h.verifyResponse(404)),
-        ]).then(done);
-      });
-
-
-      it('should reject PRs with leading zeros', done => {
-        h.runCmd(`curl -iL ${scheme}://pr0${pr}-${sha9}.${host}`).
-          then(h.verifyResponse(404)).
-          then(done);
-      });
-
-
-      it('should accept SHAs with leading zeros (but not trim the zeros)', done => {
-        const bodyRegex9 = new RegExp(`^PR: ${pr} | SHA: ${sha9} | File: /index\\.html$`);
-        const bodyRegex0 = new RegExp(`^PR: ${pr} | SHA: ${sha0} | File: /index\\.html$`);
-
-        Promise.all([
-          h.runCmd(`curl -iL ${scheme}://pr${pr}-0${sha9}.${host}`).then(h.verifyResponse(404)),
-          h.runCmd(`curl -iL ${scheme}://pr${pr}-${sha9}.${host}`).then(h.verifyResponse(200, bodyRegex9)),
-          h.runCmd(`curl -iL ${scheme}://pr${pr}-${sha0}.${host}`).then(h.verifyResponse(200, bodyRegex0)),
-        ]).then(done);
       });
 
     });
@@ -244,9 +317,54 @@ describe(`nginx`, () => {
     });
 
 
+    describe(`${host}/pr-updated`, () => {
+      const url = `${scheme}://${host}/pr-updated`;
+
+
+      it('should disallow non-POST requests', done => {
+        Promise.all([
+          h.runCmd(`curl -iLX GET ${url}`).then(h.verifyResponse([405, 'Not Allowed'])),
+          h.runCmd(`curl -iLX PUT ${url}`).then(h.verifyResponse([405, 'Not Allowed'])),
+          h.runCmd(`curl -iLX PATCH ${url}`).then(h.verifyResponse([405, 'Not Allowed'])),
+          h.runCmd(`curl -iLX DELETE ${url}`).then(h.verifyResponse([405, 'Not Allowed'])),
+        ]).then(done);
+      });
+
+
+      it('should pass requests through to the upload server', done => {
+        const cmdPrefix = `curl -iLX POST --header "Content-Type: application/json"`;
+
+        const cmd1 = `${cmdPrefix} ${url}`;
+        const cmd2 = `${cmdPrefix} --data '{"number":${pr}}' ${url}`;
+        const cmd3 = `${cmdPrefix} --data '{"number":${pr},"action":"foo"}' ${url}`;
+
+        Promise.all([
+          h.runCmd(cmd1).then(h.verifyResponse(400, /Missing or empty 'number' field/)),
+          h.runCmd(cmd2).then(h.verifyResponse(200)),
+          h.runCmd(cmd3).then(h.verifyResponse(200)),
+        ]).then(done);
+      });
+
+
+      it('should respond with 404 for unknown paths', done => {
+        const cmdPrefix = `curl -iLX POST ${scheme}://${host}`;
+
+        Promise.all([
+          h.runCmd(`${cmdPrefix}/foo/pr-updated`).then(h.verifyResponse(404)),
+          h.runCmd(`${cmdPrefix}/foo-pr-updated`).then(h.verifyResponse(404)),
+          h.runCmd(`${cmdPrefix}/foonpr-updated`).then(h.verifyResponse(404)),
+          h.runCmd(`${cmdPrefix}/pr-updated/foo`).then(h.verifyResponse(404)),
+          h.runCmd(`${cmdPrefix}/pr-updated-foo`).then(h.verifyResponse(404)),
+          h.runCmd(`${cmdPrefix}/pr-updatednfoo`).then(h.verifyResponse(404)),
+        ]).then(done);
+      });
+
+    });
+
+
     describe(`${host}/*`, () => {
 
-      it('should respond with 404 for unkown URLs (even if the resource exists)', done => {
+      it('should respond with 404 for unknown URLs (even if the resource exists)', done => {
         ['index.html', 'foo.js', 'foo/index.html'].forEach(relFilePath => {
           const absFilePath = path.join(h.buildsDir, relFilePath);
           h.writeFile(absFilePath, {content: `File: /${relFilePath}`});

aio/aio-builds-setup/dockerbuild/scripts-js/lib/verify-setup/server-integration.e2e.ts

@@ -1,5 +1,6 @@
 // Imports
 import * as path from 'path';
+import * as c from './constants';
 import {helper as h} from './helper';
 
 // Tests
@@ -12,73 +13,307 @@ h.runForAllSupportedSchemes((scheme, port) => describe(`integration (on ${scheme
   const archivePath = path.join(h.buildsDir, 'snapshot.tar.gz');
 
   const getFile = (pr: string, sha: string, file: string) =>
-    h.runCmd(`curl -iL ${scheme}://pr${pr}-${sha}.${host}/${file}`);
-  const uploadBuild = (pr: string, sha: string, archive: string) => {
-    const curlPost = 'curl -iLX POST --header "Authorization: Token FOO"';
+    h.runCmd(`curl -iL ${scheme}://pr${pr}-${h.getShordSha(sha)}.${host}/${file}`);
+  const uploadBuild = (pr: string, sha: string, archive: string, authHeader = 'Token FOO') => {
+    const curlPost = `curl -iLX POST --header "Authorization: ${authHeader}"`;
     return h.runCmd(`${curlPost} --data-binary "@${archive}" ${scheme}://${host}/create-build/${pr}/${sha}`);
   };
+  const prUpdated = (pr: number, action?: string) => {
+    const url = `${scheme}://${host}/pr-updated`;
+    const payloadStr = JSON.stringify({number: pr, action});
+    return h.runCmd(`curl -iLX POST --header "Content-Type: application/json" --data '${payloadStr}' ${url}`);
+  };
 
   beforeEach(() => jasmine.DEFAULT_TIMEOUT_INTERVAL = 10000);
   afterEach(() => {
     h.deletePrDir(pr9);
+    h.deletePrDir(pr9, false);
     h.cleanUp();
   });
 
 
-  it('should be able to upload and serve a build for a new PR', done => {
-    const regexPrefix9 = `^PR: uploaded\\/${pr9} \\| SHA: ${sha9} \\| File:`;
-    const idxContentRegex9 = new RegExp(`${regexPrefix9} \\/index\\.html$`);
-    const barContentRegex9 = new RegExp(`${regexPrefix9} \\/foo\\/bar\\.js$`);
+  describe('for a new/non-existing PR', () => {
 
-    h.createDummyArchive(pr9, sha9, archivePath);
+    it('should be able to upload and serve a public build', done => {
+      const regexPrefix9 = `^PR: uploaded\\/${pr9} \\| SHA: ${sha9} \\| File:`;
+      const idxContentRegex9 = new RegExp(`${regexPrefix9} \\/index\\.html$`);
+      const barContentRegex9 = new RegExp(`${regexPrefix9} \\/foo\\/bar\\.js$`);
+
+      h.createDummyArchive(pr9, sha9, archivePath);
+
+      uploadBuild(pr9, sha9, archivePath).
+        then(() => Promise.all([
+          getFile(pr9, sha9, 'index.html').then(h.verifyResponse(200, idxContentRegex9)),
+          getFile(pr9, sha9, 'foo/bar.js').then(h.verifyResponse(200, barContentRegex9)),
+        ])).
+        then(done);
+    });
+
+
+    it('should be able to upload but not serve a hidden build', done => {
+      const regexPrefix9 = `^PR: uploaded\\/${pr9} \\| SHA: ${sha9} \\| File:`;
+      const idxContentRegex9 = new RegExp(`${regexPrefix9} \\/index\\.html$`);
+      const barContentRegex9 = new RegExp(`${regexPrefix9} \\/foo\\/bar\\.js$`);
+
+      h.createDummyArchive(pr9, sha9, archivePath);
+
+      uploadBuild(pr9, sha9, archivePath, c.BV_verify_verifiedNotTrusted).
+        then(() => Promise.all([
+          getFile(pr9, sha9, 'index.html').then(h.verifyResponse(404)),
+          getFile(pr9, sha9, 'foo/bar.js').then(h.verifyResponse(404)),
+        ])).
+        then(() => {
+          expect(h.buildExists(pr9, sha9)).toBe(false);
+          expect(h.buildExists(pr9, sha9, false)).toBe(true);
+          expect(h.readBuildFile(pr9, sha9, 'index.html', false)).toMatch(idxContentRegex9);
+          expect(h.readBuildFile(pr9, sha9, 'foo/bar.js', false)).toMatch(barContentRegex9);
+        }).
+        then(done);
+    });
+
+
+    it('should reject an upload if verification fails', done => {
+      const errorRegex9 = new RegExp(`Error while verifying upload for PR ${pr9}: Test`);
+
+      h.createDummyArchive(pr9, sha9, archivePath);
+
+      uploadBuild(pr9, sha9, archivePath, c.BV_verify_error).
+        then(h.verifyResponse(403, errorRegex9)).
+        then(() => {
+          expect(h.buildExists(pr9)).toBe(false);
+          expect(h.buildExists(pr9, '', false)).toBe(false);
+        }).
+        then(done);
+    });
+
+
+    it('should be able to notify that a PR has been updated (and do nothing)', done => {
+      prUpdated(+pr9).
+        then(h.verifyResponse(200)).
+        then(() => {
+          // The PR should still not exist.
+          expect(h.buildExists(pr9, '', false)).toBe(false);
+          expect(h.buildExists(pr9, '', true)).toBe(false);
+        }).
+        then(done);
+    });
 
-    uploadBuild(pr9, sha9, archivePath).
-      then(() => Promise.all([
-        getFile(pr9, sha9, 'index.html').then(h.verifyResponse(200, idxContentRegex9)),
-        getFile(pr9, sha9, 'foo/bar.js').then(h.verifyResponse(200, barContentRegex9)),
-      ])).
-      then(done);
   });
 
 
-  it('should be able to upload and serve a build for an existing PR', done => {
-    const regexPrefix0 = `^PR: ${pr9} \\| SHA: ${sha0} \\| File:`;
-    const idxContentRegex0 = new RegExp(`${regexPrefix0} \\/index\\.html$`);
-    const barContentRegex0 = new RegExp(`${regexPrefix0} \\/foo\\/bar\\.js$`);
+  describe('for an existing PR', () => {
 
-    const regexPrefix9 = `^PR: uploaded\\/${pr9} \\| SHA: ${sha9} \\| File:`;
-    const idxContentRegex9 = new RegExp(`${regexPrefix9} \\/index\\.html$`);
-    const barContentRegex9 = new RegExp(`${regexPrefix9} \\/foo\\/bar\\.js$`);
+    it('should be able to upload and serve a public build', done => {
+      const regexPrefix0 = `^PR: ${pr9} \\| SHA: ${sha0} \\| File:`;
+      const idxContentRegex0 = new RegExp(`${regexPrefix0} \\/index\\.html$`);
+      const barContentRegex0 = new RegExp(`${regexPrefix0} \\/foo\\/bar\\.js$`);
 
-    h.createDummyBuild(pr9, sha0);
-    h.createDummyArchive(pr9, sha9, archivePath);
+      const regexPrefix9 = `^PR: uploaded\\/${pr9} \\| SHA: ${sha9} \\| File:`;
+      const idxContentRegex9 = new RegExp(`${regexPrefix9} \\/index\\.html$`);
+      const barContentRegex9 = new RegExp(`${regexPrefix9} \\/foo\\/bar\\.js$`);
 
-    uploadBuild(pr9, sha9, archivePath).
-      then(() => Promise.all([
-        getFile(pr9, sha0, 'index.html').then(h.verifyResponse(200, idxContentRegex0)),
-        getFile(pr9, sha0, 'foo/bar.js').then(h.verifyResponse(200, barContentRegex0)),
-        getFile(pr9, sha9, 'index.html').then(h.verifyResponse(200, idxContentRegex9)),
-        getFile(pr9, sha9, 'foo/bar.js').then(h.verifyResponse(200, barContentRegex9)),
-      ])).
-      then(done);
-  });
+      h.createDummyBuild(pr9, sha0);
+      h.createDummyArchive(pr9, sha9, archivePath);
+
+      uploadBuild(pr9, sha9, archivePath).
+        then(() => Promise.all([
+          getFile(pr9, sha0, 'index.html').then(h.verifyResponse(200, idxContentRegex0)),
+          getFile(pr9, sha0, 'foo/bar.js').then(h.verifyResponse(200, barContentRegex0)),
+          getFile(pr9, sha9, 'index.html').then(h.verifyResponse(200, idxContentRegex9)),
+          getFile(pr9, sha9, 'foo/bar.js').then(h.verifyResponse(200, barContentRegex9)),
+        ])).
+        then(done);
+    });
 
 
-  it('should not be able to overwrite a build', done => {
-    const regexPrefix9 = `^PR: ${pr9} \\| SHA: ${sha9} \\| File:`;
-    const idxContentRegex9 = new RegExp(`${regexPrefix9} \\/index\\.html$`);
-    const barContentRegex9 = new RegExp(`${regexPrefix9} \\/foo\\/bar\\.js$`);
+    it('should be able to upload but not serve a hidden build', done => {
+      const regexPrefix0 = `^PR: ${pr9} \\| SHA: ${sha0} \\| File:`;
+      const idxContentRegex0 = new RegExp(`${regexPrefix0} \\/index\\.html$`);
+      const barContentRegex0 = new RegExp(`${regexPrefix0} \\/foo\\/bar\\.js$`);
 
-    h.createDummyBuild(pr9, sha9);
-    h.createDummyArchive(pr9, sha9, archivePath);
+      const regexPrefix9 = `^PR: uploaded\\/${pr9} \\| SHA: ${sha9} \\| File:`;
+      const idxContentRegex9 = new RegExp(`${regexPrefix9} \\/index\\.html$`);
+      const barContentRegex9 = new RegExp(`${regexPrefix9} \\/foo\\/bar\\.js$`);
+
+      h.createDummyBuild(pr9, sha0, false);
+      h.createDummyArchive(pr9, sha9, archivePath);
+
+      uploadBuild(pr9, sha9, archivePath, c.BV_verify_verifiedNotTrusted).
+        then(() => Promise.all([
+          getFile(pr9, sha0, 'index.html').then(h.verifyResponse(404)),
+          getFile(pr9, sha0, 'foo/bar.js').then(h.verifyResponse(404)),
+          getFile(pr9, sha9, 'index.html').then(h.verifyResponse(404)),
+          getFile(pr9, sha9, 'foo/bar.js').then(h.verifyResponse(404)),
+        ])).
+        then(() => {
+          expect(h.buildExists(pr9, sha9)).toBe(false);
+          expect(h.buildExists(pr9, sha9, false)).toBe(true);
+          expect(h.readBuildFile(pr9, sha0, 'index.html', false)).toMatch(idxContentRegex0);
+          expect(h.readBuildFile(pr9, sha0, 'foo/bar.js', false)).toMatch(barContentRegex0);
+          expect(h.readBuildFile(pr9, sha9, 'index.html', false)).toMatch(idxContentRegex9);
+          expect(h.readBuildFile(pr9, sha9, 'foo/bar.js', false)).toMatch(barContentRegex9);
+        }).
+        then(done);
+    });
+
+
+    it('should reject an upload if verification fails', done => {
+      const errorRegex9 = new RegExp(`Error while verifying upload for PR ${pr9}: Test`);
+
+      h.createDummyBuild(pr9, sha0);
+      h.createDummyArchive(pr9, sha9, archivePath);
+
+      uploadBuild(pr9, sha9, archivePath, c.BV_verify_error).
+        then(h.verifyResponse(403, errorRegex9)).
+        then(() => {
+          expect(h.buildExists(pr9)).toBe(true);
+          expect(h.buildExists(pr9, sha0)).toBe(true);
+          expect(h.buildExists(pr9, sha9)).toBe(false);
+        }).
+        then(done);
+
+    });
+
+
+    it('should not be able to overwrite an existing public build', done => {
+      const regexPrefix9 = `^PR: ${pr9} \\| SHA: ${sha9} \\| File:`;
+      const idxContentRegex9 = new RegExp(`${regexPrefix9} \\/index\\.html$`);
+      const barContentRegex9 = new RegExp(`${regexPrefix9} \\/foo\\/bar\\.js$`);
+
+      h.createDummyBuild(pr9, sha9);
+      h.createDummyArchive(pr9, sha9, archivePath);
+
+      uploadBuild(pr9, sha9, archivePath).
+        then(h.verifyResponse(409)).
+        then(() => Promise.all([
+          getFile(pr9, sha9, 'index.html').then(h.verifyResponse(200, idxContentRegex9)),
+          getFile(pr9, sha9, 'foo/bar.js').then(h.verifyResponse(200, barContentRegex9)),
+        ])).
+        then(done);
+    });
+
+
+    it('should not be able to overwrite an existing hidden build', done => {
+      const regexPrefix9 = `^PR: ${pr9} \\| SHA: ${sha9} \\| File:`;
+      const idxContentRegex9 = new RegExp(`${regexPrefix9} \\/index\\.html$`);
+      const barContentRegex9 = new RegExp(`${regexPrefix9} \\/foo\\/bar\\.js$`);
+
+      h.createDummyBuild(pr9, sha9, false);
+      h.createDummyArchive(pr9, sha9, archivePath);
+
+      uploadBuild(pr9, sha9, archivePath, c.BV_verify_verifiedNotTrusted).
+        then(h.verifyResponse(409)).
+        then(() => {
+          expect(h.readBuildFile(pr9, sha9, 'index.html', false)).toMatch(idxContentRegex9);
+          expect(h.readBuildFile(pr9, sha9, 'foo/bar.js', false)).toMatch(barContentRegex9);
+        }).
+        then(done);
+    });
+
+
+    it('should be able to request re-checking visibility (if outdated)', done => {
+      const publicPr = pr9;
+      const hiddenPr = String(c.BV_getPrIsTrusted_notTrusted);
+
+      h.createDummyBuild(publicPr, sha9, false);
+      h.createDummyBuild(hiddenPr, sha9, true);
+
+      // PR visibilities are outdated (i.e. the opposte of what the should).
+      expect(h.buildExists(publicPr, '', false)).toBe(true);
+      expect(h.buildExists(publicPr, '', true)).toBe(false);
+      expect(h.buildExists(hiddenPr, '', false)).toBe(false);
+      expect(h.buildExists(hiddenPr, '', true)).toBe(true);
+
+      Promise.
+        all([
+          prUpdated(+publicPr).then(h.verifyResponse(200)),
+          prUpdated(+hiddenPr).then(h.verifyResponse(200)),
+        ]).
+        then(() => {
+          // PR visibilities should have been updated.
+          expect(h.buildExists(publicPr, '', false)).toBe(false);
+          expect(h.buildExists(publicPr, '', true)).toBe(true);
+          expect(h.buildExists(hiddenPr, '', false)).toBe(true);
+          expect(h.buildExists(hiddenPr, '', true)).toBe(false);
+        }).
+        then(() => {
+          h.deletePrDir(publicPr, true);
+          h.deletePrDir(hiddenPr, false);
+        }).
+        then(done);
+    });
+
+
+    it('should be able to request re-checking visibility (if up-to-date)', done => {
+      const publicPr = pr9;
+      const hiddenPr = String(c.BV_getPrIsTrusted_notTrusted);
+
+      h.createDummyBuild(publicPr, sha9, true);
+      h.createDummyBuild(hiddenPr, sha9, false);
+
+      // PR visibilities are already up-to-date.
+      expect(h.buildExists(publicPr, '', false)).toBe(false);
+      expect(h.buildExists(publicPr, '', true)).toBe(true);
+      expect(h.buildExists(hiddenPr, '', false)).toBe(true);
+      expect(h.buildExists(hiddenPr, '', true)).toBe(false);
+
+      Promise.
+        all([
+          prUpdated(+publicPr).then(h.verifyResponse(200)),
+          prUpdated(+hiddenPr).then(h.verifyResponse(200)),
+        ]).
+        then(() => {
+          // PR visibilities are still up-to-date.
+          expect(h.buildExists(publicPr, '', false)).toBe(false);
+          expect(h.buildExists(publicPr, '', true)).toBe(true);
+          expect(h.buildExists(hiddenPr, '', false)).toBe(true);
+          expect(h.buildExists(hiddenPr, '', true)).toBe(false);
+        }).
+        then(done);
+    });
+
+
+    it('should reject a request if re-checking visibility fails', done => {
+      const errorPr = String(c.BV_getPrIsTrusted_error);
+
+      h.createDummyBuild(errorPr, sha9, true);
+
+      expect(h.buildExists(errorPr, '', false)).toBe(false);
+      expect(h.buildExists(errorPr, '', true)).toBe(true);
+
+      prUpdated(+errorPr).
+        then(h.verifyResponse(500, /Test/)).
+        then(() => {
+          // PR visibility should not have been updated.
+          expect(h.buildExists(errorPr, '', false)).toBe(false);
+          expect(h.buildExists(errorPr, '', true)).toBe(true);
+        }).
+        then(done);
+    });
+
+
+    it('should reject a request if updating visibility fails', done => {
+      // One way to cause an error is to have both a public and a hidden directory for the same PR.
+      h.createDummyBuild(pr9, sha9, false);
+      h.createDummyBuild(pr9, sha9, true);
+
+      const hiddenPrDir = h.getPrDir(pr9, false);
+      const publicPrDir = h.getPrDir(pr9, true);
+      const bodyRegex = new RegExp(`Request to move '${hiddenPrDir}' to existing directory '${publicPrDir}'`);
+
+      expect(h.buildExists(pr9, '', false)).toBe(true);
+      expect(h.buildExists(pr9, '', true)).toBe(true);
+
+      prUpdated(+pr9).
+        then(h.verifyResponse(409, bodyRegex)).
+        then(() => {
+          // PR visibility should not have been updated.
+          expect(h.buildExists(pr9, '', false)).toBe(true);
+          expect(h.buildExists(pr9, '', true)).toBe(true);
+        }).
+        then(done);
+    });
 
-    uploadBuild(pr9, sha9, archivePath).
-      then(h.verifyResponse(409)).
-      then(() => Promise.all([
-        getFile(pr9, sha9, 'index.html').then(h.verifyResponse(200, idxContentRegex9)),
-        getFile(pr9, sha9, 'foo/bar.js').then(h.verifyResponse(200, barContentRegex9)),
-      ])).
-      then(done);
   });
 
 }));

aio/aio-builds-setup/dockerbuild/scripts-js/lib/verify-setup/start-test-upload-server.ts

@@ -0,0 +1,38 @@
+// Imports
+import {GithubPullRequests} from '../common/github-pull-requests';
+import {BUILD_VERIFICATION_STATUS, BuildVerifier} from '../upload-server/build-verifier';
+import {UploadError} from '../upload-server/upload-error';
+import * as c from './constants';
+
+// Run
+// TODO(gkalpak): Add e2e tests to cover these interactions as well.
+GithubPullRequests.prototype.addComment = () => Promise.resolve();
+BuildVerifier.prototype.getPrIsTrusted = (pr: number) => {
+  switch (pr) {
+    case c.BV_getPrIsTrusted_error:
+      // For e2e tests, fake an error.
+      return Promise.reject('Test');
+    case c.BV_getPrIsTrusted_notTrusted:
+      // For e2e tests, fake an untrusted PR (`false`).
+      return Promise.resolve(false);
+    default:
+      // For e2e tests, default to trusted PRs (`true`).
+      return Promise.resolve(true);
+  }
+};
+BuildVerifier.prototype.verify = (expectedPr: number, authHeader: string) => {
+  switch (authHeader) {
+    case c.BV_verify_error:
+      // For e2e tests, fake a verification error.
+      return Promise.reject(new UploadError(403, `Error while verifying upload for PR ${expectedPr}: Test`));
+    case c.BV_verify_verifiedNotTrusted:
+      // For e2e tests, fake a `verifiedNotTrusted` verification status.
+      return Promise.resolve(BUILD_VERIFICATION_STATUS.verifiedNotTrusted);
+    default:
+      // For e2e tests, default to `verifiedAndTrusted` verification status.
+      return Promise.resolve(BUILD_VERIFICATION_STATUS.verifiedAndTrusted);
+  }
+};
+
+// tslint:disable-next-line: no-var-requires
+require('../upload-server/index');

aio/aio-builds-setup/dockerbuild/scripts-js/lib/verify-setup/upload-server.e2e.ts

@@ -1,6 +1,7 @@
 // Imports
 import * as fs from 'fs';
 import * as path from 'path';
+import * as c from './constants';
 import {CmdResult, helper as h} from './helper';
 
 // Tests
@@ -19,18 +20,19 @@ describe('upload-server (on HTTP)', () => {
   describe(`${host}/create-build/<pr>/<sha>`, () => {
     const authorizationHeader = `--header "Authorization: Token FOO"`;
     const xFileHeader = `--header "X-File: ${h.buildsDir}/snapshot.tar.gz"`;
-    const curl = `curl -iL ${authorizationHeader} ${xFileHeader}`;
+    const defaultHeaders = `${authorizationHeader} ${xFileHeader}`;
+    const curl = (url: string, headers = defaultHeaders) => `curl -iL ${headers} ${url}`;
 
 
     it('should disallow non-GET requests', done => {
       const url = `http://${host}/create-build/${pr}/${sha9}`;
-      const bodyRegex = /^Unsupported method/;
+      const bodyRegex = /^Unknown resource/;
 
       Promise.all([
-        h.runCmd(`curl -iLX PUT ${url}`).then(h.verifyResponse(405, bodyRegex)),
-        h.runCmd(`curl -iLX POST ${url}`).then(h.verifyResponse(405, bodyRegex)),
-        h.runCmd(`curl -iLX PATCH ${url}`).then(h.verifyResponse(405, bodyRegex)),
-        h.runCmd(`curl -iLX DELETE ${url}`).then(h.verifyResponse(405, bodyRegex)),
+        h.runCmd(`curl -iLX PUT ${url}`).then(h.verifyResponse(404, bodyRegex)),
+        h.runCmd(`curl -iLX POST ${url}`).then(h.verifyResponse(404, bodyRegex)),
+        h.runCmd(`curl -iLX PATCH ${url}`).then(h.verifyResponse(404, bodyRegex)),
+        h.runCmd(`curl -iLX DELETE ${url}`).then(h.verifyResponse(404, bodyRegex)),
       ]).then(done);
     });
 
@@ -42,8 +44,8 @@ describe('upload-server (on HTTP)', () => {
       const bodyRegex = /^Missing or empty 'AUTHORIZATION' header/;
 
       Promise.all([
-        h.runCmd(`curl -iL ${headers1} ${url}`).then(h.verifyResponse(401, bodyRegex)),
-        h.runCmd(`curl -iL  ${headers2} ${url}`).then(h.verifyResponse(401, bodyRegex)),
+        h.runCmd(curl(url, headers1)).then(h.verifyResponse(401, bodyRegex)),
+        h.runCmd(curl(url, headers2)).then(h.verifyResponse(401, bodyRegex)),
       ]).then(done);
     });
 
@@ -55,14 +57,25 @@ describe('upload-server (on HTTP)', () => {
       const bodyRegex = /^Missing or empty 'X-FILE' header/;
 
       Promise.all([
-        h.runCmd(`curl -iL ${headers1} ${url}`).then(h.verifyResponse(400, bodyRegex)),
-        h.runCmd(`curl -iL ${headers2} ${url}`).then(h.verifyResponse(400, bodyRegex)),
+        h.runCmd(curl(url, headers1)).then(h.verifyResponse(400, bodyRegex)),
+        h.runCmd(curl(url, headers2)).then(h.verifyResponse(400, bodyRegex)),
       ]).then(done);
     });
 
 
+    it('should reject requests for which the PR verification fails', done => {
+      const headers = `--header "Authorization: ${c.BV_verify_error}" ${xFileHeader}`;
+      const url = `http://${host}/create-build/${pr}/${sha9}`;
+      const bodyRegex = new RegExp(`Error while verifying upload for PR ${pr}: Test`);
+
+      h.runCmd(curl(url, headers)).
+        then(h.verifyResponse(403, bodyRegex)).
+        then(done);
+    });
+
+
     it('should respond with 404 for unknown paths', done => {
-      const cmdPrefix = `${curl} http://${host}`;
+      const cmdPrefix = curl(`http://${host}`);
 
       Promise.all([
         h.runCmd(`${cmdPrefix}/foo/create-build/${pr}/${sha9}`).then(h.verifyResponse(404)),
@@ -78,7 +91,7 @@ describe('upload-server (on HTTP)', () => {
 
 
     it('should reject PRs with leading zeros', done => {
-      h.runCmd(`${curl} http://${host}/create-build/0${pr}/${sha9}`).
+      h.runCmd(curl(`http://${host}/create-build/0${pr}/${sha9}`)).
         then(h.verifyResponse(404)).
         then(done);
     });
@@ -86,129 +99,254 @@ describe('upload-server (on HTTP)', () => {
 
     it('should accept SHAs with leading zeros (but not trim the zeros)', done => {
       Promise.all([
-        h.runCmd(`${curl} http://${host}/create-build/${pr}/0${sha9}`).then(h.verifyResponse(404)),
-        h.runCmd(`${curl} http://${host}/create-build/${pr}/${sha9}`).then(h.verifyResponse(500)),
-        h.runCmd(`${curl} http://${host}/create-build/${pr}/${sha0}`).then(h.verifyResponse(500)),
+        h.runCmd(curl(`http://${host}/create-build/${pr}/0${sha9}`)).then(h.verifyResponse(404)),
+        h.runCmd(curl(`http://${host}/create-build/${pr}/${sha9}`)).then(h.verifyResponse(500)),
+        h.runCmd(curl(`http://${host}/create-build/${pr}/${sha0}`)).then(h.verifyResponse(500)),
       ]).then(done);
     });
 
 
-    it('should not overwrite existing builds', done => {
-      h.createDummyBuild(pr, sha9);
-      expect(h.readBuildFile(pr, sha9, 'index.html')).toContain('index.html');
-
-      h.writeBuildFile(pr, sha9, 'index.html', 'My content');
-      expect(h.readBuildFile(pr, sha9, 'index.html')).toBe('My content');
-
-      h.runCmd(`${curl} http://${host}/create-build/${pr}/${sha9}`).
-        then(h.verifyResponse(409, /^Request to overwrite existing directory/)).
-        then(() => expect(h.readBuildFile(pr, sha9, 'index.html')).toBe('My content')).
-        then(done);
-    });
+    [true, false].forEach(isPublic => describe(`(for ${isPublic ? 'public' : 'hidden'} builds)`, () => {
+      const authorizationHeader2 = isPublic ?
+        authorizationHeader : `--header "Authorization: ${c.BV_verify_verifiedNotTrusted}"`;
+      const cmdPrefix = curl('', `${authorizationHeader2} ${xFileHeader}`);
+      const overwriteRe = RegExp(`^Request to overwrite existing ${isPublic ? 'public' : 'non-public'} directory`);
 
 
-    it('should delete the PR directory on error (for new PR)', done => {
-      const prDir = path.join(h.buildsDir, pr);
+      it('should not overwrite existing builds', done => {
+        h.createDummyBuild(pr, sha9, isPublic);
+        expect(h.readBuildFile(pr, sha9, 'index.html', isPublic)).toContain('index.html');
 
-      h.runCmd(`${curl} http://${host}/create-build/${pr}/${sha9}`).
-        then(h.verifyResponse(500)).
-        then(() => expect(fs.existsSync(prDir)).toBe(false)).
-        then(done);
-    });
+        h.writeBuildFile(pr, sha9, 'index.html', 'My content', isPublic);
+        expect(h.readBuildFile(pr, sha9, 'index.html', isPublic)).toBe('My content');
 
-
-    it('should only delete the SHA directory on error (for existing PR)', done => {
-      const prDir = path.join(h.buildsDir, pr);
-      const shaDir = path.join(prDir, sha9);
-
-      h.createDummyBuild(pr, sha0);
-
-      h.runCmd(`${curl} http://${host}/create-build/${pr}/${sha9}`).
-        then(h.verifyResponse(500)).
-        then(() => {
-          expect(fs.existsSync(shaDir)).toBe(false);
-          expect(fs.existsSync(prDir)).toBe(true);
-        }).
-        then(done);
-    });
-
-
-    describe('on successful upload', () => {
-      const archivePath = path.join(h.buildsDir, 'snapshot.tar.gz');
-      let uploadPromise: Promise<CmdResult>;
-
-      beforeEach(() => {
-        h.createDummyArchive(pr, sha9, archivePath);
-        uploadPromise = h.runCmd(`${curl} http://${host}/create-build/${pr}/${sha9}`);
-      });
-      afterEach(() => h.deletePrDir(pr));
-
-
-      it('should respond with 201', done => {
-        uploadPromise.then(h.verifyResponse(201)).then(done);
+        h.runCmd(`${cmdPrefix} http://${host}/create-build/${pr}/${sha9}`).
+          then(h.verifyResponse(409, overwriteRe)).
+          then(() => expect(h.readBuildFile(pr, sha9, 'index.html', isPublic)).toBe('My content')).
+          then(done);
       });
 
 
-      it('should extract the contents of the uploaded file', done => {
-        uploadPromise.
+      it('should not overwrite existing builds (even if the SHA is different)', done => {
+        // Since only the first few characters of the SHA are used, it is possible for two different
+        // SHAs to correspond to the same directory. In that case, we don't want the second SHA to
+        // overwrite the first.
+
+        const sha9Almost = sha9.replace(/.$/, '8');
+        expect(sha9Almost).not.toBe(sha9);
+
+        h.createDummyBuild(pr, sha9, isPublic);
+        expect(h.readBuildFile(pr, sha9, 'index.html', isPublic)).toContain('index.html');
+
+        h.writeBuildFile(pr, sha9, 'index.html', 'My content', isPublic);
+        expect(h.readBuildFile(pr, sha9, 'index.html', isPublic)).toBe('My content');
+
+        h.runCmd(`${cmdPrefix} http://${host}/create-build/${pr}/${sha9Almost}`).
+          then(h.verifyResponse(409, overwriteRe)).
+          then(() => expect(h.readBuildFile(pr, sha9, 'index.html', isPublic)).toBe('My content')).
+          then(done);
+      });
+
+
+      it('should delete the PR directory on error (for new PR)', done => {
+        h.runCmd(`${cmdPrefix} http://${host}/create-build/${pr}/${sha9}`).
+          then(h.verifyResponse(500)).
+          then(() => expect(h.buildExists(pr, '', isPublic)).toBe(false)).
+          then(done);
+      });
+
+
+      it('should only delete the SHA directory on error (for existing PR)', done => {
+        h.createDummyBuild(pr, sha0, isPublic);
+
+        h.runCmd(`${cmdPrefix} http://${host}/create-build/${pr}/${sha9}`).
+          then(h.verifyResponse(500)).
           then(() => {
-            expect(h.readBuildFile(pr, sha9, 'index.html')).toContain(`uploaded/${pr}`);
-            expect(h.readBuildFile(pr, sha9, 'foo/bar.js')).toContain(`uploaded/${pr}`);
+            expect(h.buildExists(pr, sha9, isPublic)).toBe(false);
+            expect(h.buildExists(pr, '', isPublic)).toBe(true);
           }).
           then(done);
       });
 
 
-      it(`should create files/directories owned by '${h.wwwUser}'`, done => {
-        const shaDir = path.join(h.buildsDir, pr, sha9);
-        const idxPath = path.join(shaDir, 'index.html');
-        const barPath = path.join(shaDir, 'foo', 'bar.js');
+      describe('on successful upload', () => {
+        const archivePath = path.join(h.buildsDir, 'snapshot.tar.gz');
+        const statusCode = isPublic ? 201 : 202;
+        let uploadPromise: Promise<CmdResult>;
+
+        beforeEach(() => {
+          h.createDummyArchive(pr, sha9, archivePath);
+          uploadPromise = h.runCmd(`${cmdPrefix} http://${host}/create-build/${pr}/${sha9}`);
+        });
+        afterEach(() => h.deletePrDir(pr, isPublic));
+
+
+        it(`should respond with ${statusCode}`, done => {
+          uploadPromise.then(h.verifyResponse(statusCode)).then(done);
+        });
+
+
+        it('should extract the contents of the uploaded file', done => {
+          uploadPromise.
+            then(() => {
+              expect(h.readBuildFile(pr, sha9, 'index.html', isPublic)).toContain(`uploaded/${pr}`);
+              expect(h.readBuildFile(pr, sha9, 'foo/bar.js', isPublic)).toContain(`uploaded/${pr}`);
+            }).
+            then(done);
+        });
+
+
+        it(`should create files/directories owned by '${h.wwwUser}'`, done => {
+          const prDir = h.getPrDir(pr, isPublic);
+          const shaDir = h.getShaDir(prDir, sha9);
+          const idxPath = path.join(shaDir, 'index.html');
+          const barPath = path.join(shaDir, 'foo', 'bar.js');
+
+          uploadPromise.
+            then(() => Promise.all([
+              h.runCmd(`find ${shaDir}`),
+              h.runCmd(`find ${shaDir} -user ${h.wwwUser}`),
+            ])).
+            then(([{stdout: allFiles}, {stdout: userFiles}]) => {
+              expect(userFiles).toBe(allFiles);
+              expect(userFiles).toContain(shaDir);
+              expect(userFiles).toContain(idxPath);
+              expect(userFiles).toContain(barPath);
+            }).
+            then(done);
+        });
+
+
+        it('should delete the uploaded file', done => {
+          expect(fs.existsSync(archivePath)).toBe(true);
+          uploadPromise.
+            then(() => expect(fs.existsSync(archivePath)).toBe(false)).
+            then(done);
+        });
+
+
+        it('should make the build directory non-writable', done => {
+          const prDir = h.getPrDir(pr, isPublic);
+          const shaDir = h.getShaDir(prDir, sha9);
+          const idxPath = path.join(shaDir, 'index.html');
+          const barPath = path.join(shaDir, 'foo', 'bar.js');
+
+          // See https://github.com/nodejs/node-v0.x-archive/issues/3045#issuecomment-4862588.
+          const isNotWritable = (fileOrDir: string) => {
+            const mode = fs.statSync(fileOrDir).mode;
+            // tslint:disable-next-line: no-bitwise
+            return !(mode & parseInt('222', 8));
+          };
+
+          uploadPromise.
+            then(() => {
+              expect(isNotWritable(shaDir)).toBe(true);
+              expect(isNotWritable(idxPath)).toBe(true);
+              expect(isNotWritable(barPath)).toBe(true);
+            }).
+            then(done);
+        });
+
+
+        it('should ignore a legacy 40-chars long build directory (even if it starts with the same chars)', done => {
+          // It is possible that 40-chars long build directories exist, if they had been deployed
+          // before implementing the shorter build directory names. In that case, we don't want the
+          // second (shorter) name to be considered the same as the old one (even if they originate
+          // from the same SHA).
+
+          h.createDummyBuild(pr, sha9, isPublic, false, true);
+          expect(h.readBuildFile(pr, sha9, 'index.html', isPublic, true)).toContain('index.html');
+
+          h.writeBuildFile(pr, sha9, 'index.html', 'My content', isPublic, true);
+          expect(h.readBuildFile(pr, sha9, 'index.html', isPublic, true)).toBe('My content');
+
+          h.runCmd(`${cmdPrefix} http://${host}/create-build/${pr}/${sha9}`).
+            then(h.verifyResponse(statusCode)).
+            then(() => {
+              expect(h.buildExists(pr, sha9, isPublic)).toBe(true);
+              expect(h.buildExists(pr, sha9, isPublic, true)).toBe(true);
+              expect(h.readBuildFile(pr, sha9, 'index.html', isPublic)).toContain('index.html');
+              expect(h.readBuildFile(pr, sha9, 'index.html', isPublic, true)).toBe('My content');
+            }).
+            then(done);
+        });
 
-        uploadPromise.
-          then(() => Promise.all([
-            h.runCmd(`find ${shaDir}`),
-            h.runCmd(`find ${shaDir} -user ${h.wwwUser}`),
-          ])).
-          then(([{stdout: allFiles}, {stdout: userFiles}]) => {
-            expect(userFiles).toBe(allFiles);
-            expect(userFiles).toContain(shaDir);
-            expect(userFiles).toContain(idxPath);
-            expect(userFiles).toContain(barPath);
-          }).
-          then(done);
       });
 
 
-      it('should delete the uploaded file', done => {
-        expect(fs.existsSync(archivePath)).toBe(true);
-        uploadPromise.
-          then(() => expect(fs.existsSync(archivePath)).toBe(false)).
-          then(done);
-      });
+      describe('when the PR\'s visibility has changed', () => {
+        const archivePath = path.join(h.buildsDir, 'snapshot.tar.gz');
+        const statusCode = isPublic ? 201 : 202;
 
-
-      it('should make the build directory non-writable', done => {
-        const shaDir = path.join(h.buildsDir, pr, sha9);
-        const idxPath = path.join(shaDir, 'index.html');
-        const barPath = path.join(shaDir, 'foo', 'bar.js');
-
-        // See https://github.com/nodejs/node-v0.x-archive/issues/3045#issuecomment-4862588.
-        const isNotWritable = (fileOrDir: string) => {
-          const mode = fs.statSync(fileOrDir).mode;
-          // tslint:disable-next-line: no-bitwise
-          return !(mode & parseInt('222', 8));
+        const checkPrVisibility = (isPublic2: boolean) => {
+          expect(h.buildExists(pr, '', isPublic2)).toBe(true);
+          expect(h.buildExists(pr, '', !isPublic2)).toBe(false);
+          expect(h.buildExists(pr, sha0, isPublic2)).toBe(true);
+          expect(h.buildExists(pr, sha0, !isPublic2)).toBe(false);
         };
+        const uploadBuild = (sha: string) => h.runCmd(`${cmdPrefix} http://${host}/create-build/${pr}/${sha}`);
+
+        beforeEach(() => {
+          h.createDummyBuild(pr, sha0, !isPublic);
+          h.createDummyArchive(pr, sha9, archivePath);
+          checkPrVisibility(!isPublic);
+        });
+        afterEach(() => h.deletePrDir(pr, isPublic));
+
+
+        it('should update the PR\'s visibility', done => {
+          uploadBuild(sha9).
+            then(h.verifyResponse(statusCode)).
+            then(() => {
+              checkPrVisibility(isPublic);
+              expect(h.buildExists(pr, sha9, isPublic)).toBe(true);
+              expect(h.readBuildFile(pr, sha9, 'index.html', isPublic)).toContain(`uploaded/${pr}`);
+              expect(h.readBuildFile(pr, sha9, 'index.html', isPublic)).toContain(sha9);
+            }).
+            then(done);
+        });
+
+
+        it('should not overwrite existing builds (but keep the updated visibility)', done => {
+          expect(h.buildExists(pr, sha0, isPublic)).toBe(false);
+
+          uploadBuild(sha0).
+            then(h.verifyResponse(409, overwriteRe)).
+            then(() => {
+              checkPrVisibility(isPublic);
+              expect(h.readBuildFile(pr, sha0, 'index.html', isPublic)).toContain(pr);
+              expect(h.readBuildFile(pr, sha0, 'index.html', isPublic)).not.toContain(`uploaded/${pr}`);
+              expect(h.readBuildFile(pr, sha0, 'index.html', isPublic)).toContain(sha0);
+              expect(h.readBuildFile(pr, sha0, 'index.html', isPublic)).not.toContain(sha9);
+            }).
+            then(done);
+        });
+
+
+        it('should reject the request if it fails to update the PR\'s visibility', done => {
+          // One way to cause an error is to have both a public and a hidden directory for the same PR.
+          h.createDummyBuild(pr, sha0, isPublic);
+
+          expect(h.buildExists(pr, sha0, isPublic)).toBe(true);
+          expect(h.buildExists(pr, sha0, !isPublic)).toBe(true);
+
+          const errorRegex = new RegExp(`^Request to move '${h.getPrDir(pr, !isPublic)}' ` +
+                                        `to existing directory '${h.getPrDir(pr, isPublic)}'.`);
+
+          uploadBuild(sha9).
+            then(h.verifyResponse(409, errorRegex)).
+            then(() => {
+              expect(h.buildExists(pr, sha0, isPublic)).toBe(true);
+              expect(h.buildExists(pr, sha0, !isPublic)).toBe(true);
+              expect(h.buildExists(pr, sha9, isPublic)).toBe(false);
+              expect(h.buildExists(pr, sha9, !isPublic)).toBe(false);
+            }).
+            then(done);
+        });
 
-        uploadPromise.
-          then(() => {
-            expect(isNotWritable(shaDir)).toBe(true);
-            expect(isNotWritable(idxPath)).toBe(true);
-            expect(isNotWritable(barPath)).toBe(true);
-          }).
-          then(done);
       });
 
-    });
+    }));
 
   });
 
@@ -237,27 +375,194 @@ describe('upload-server (on HTTP)', () => {
   });
 
 
+  describe(`${host}/pr-updated`, () => {
+    const url = `http://${host}/pr-updated`;
+
+    // Helpers
+    const curl = (payload?: {number: number, action?: string}) => {
+      const payloadStr = payload && JSON.stringify(payload) || '';
+      return `curl -iLX POST --header "Content-Type: application/json" --data '${payloadStr}' ${url}`;
+    };
+
+
+    it('should disallow non-POST requests', done => {
+      const bodyRegex = /^Unknown resource in request/;
+
+      Promise.all([
+        h.runCmd(`curl -iLX GET ${url}`).then(h.verifyResponse(404, bodyRegex)),
+        h.runCmd(`curl -iLX PUT ${url}`).then(h.verifyResponse(404, bodyRegex)),
+        h.runCmd(`curl -iLX PATCH ${url}`).then(h.verifyResponse(404, bodyRegex)),
+        h.runCmd(`curl -iLX DELETE ${url}`).then(h.verifyResponse(404, bodyRegex)),
+      ]).then(done);
+    });
+
+
+    it('should respond with 400 for requests without a payload', done => {
+      const bodyRegex = /^Missing or empty 'number' field in request/;
+
+      h.runCmd(curl()).
+        then(h.verifyResponse(400, bodyRegex)).
+        then(done);
+    });
+
+
+    it('should respond with 400 for requests without a \'number\' field', done => {
+      const bodyRegex = /^Missing or empty 'number' field in request/;
+
+      Promise.all([
+        h.runCmd(curl({} as any)).then(h.verifyResponse(400, bodyRegex)),
+        h.runCmd(curl({number: null} as any)).then(h.verifyResponse(400, bodyRegex)),
+      ]).then(done);
+    });
+
+
+    it('should reject requests for which checking the PR visibility fails', done => {
+      h.runCmd(curl({number: c.BV_getPrIsTrusted_error})).
+        then(h.verifyResponse(500, /Test/)).
+        then(done);
+    });
+
+
+    it('should respond with 404 for unknown paths', done => {
+      const mockPayload = JSON.stringify({number: +pr});
+      const cmdPrefix = `curl -iLX POST --data "${mockPayload}" http://${host}`;
+
+      Promise.all([
+        h.runCmd(`${cmdPrefix}/foo/pr-updated`).then(h.verifyResponse(404)),
+        h.runCmd(`${cmdPrefix}/foo-pr-updated`).then(h.verifyResponse(404)),
+        h.runCmd(`${cmdPrefix}/foonpr-updated`).then(h.verifyResponse(404)),
+        h.runCmd(`${cmdPrefix}/pr-updated/foo`).then(h.verifyResponse(404)),
+        h.runCmd(`${cmdPrefix}/pr-updated-foo`).then(h.verifyResponse(404)),
+        h.runCmd(`${cmdPrefix}/pr-updatednfoo`).then(h.verifyResponse(404)),
+      ]).then(done);
+    });
+
+
+    it('should do nothing if PR\'s visibility is already up-to-date', done => {
+      const publicPr = pr;
+      const hiddenPr = String(c.BV_getPrIsTrusted_notTrusted);
+      const checkVisibilities = () => {
+        // Public build is already public.
+        expect(h.buildExists(publicPr, '', false)).toBe(false);
+        expect(h.buildExists(publicPr, '', true)).toBe(true);
+        // Hidden build is already hidden.
+        expect(h.buildExists(hiddenPr, '', false)).toBe(true);
+        expect(h.buildExists(hiddenPr, '', true)).toBe(false);
+      };
+
+      h.createDummyBuild(publicPr, sha9, true);
+      h.createDummyBuild(hiddenPr, sha9, false);
+      checkVisibilities();
+
+      Promise.
+        all([
+          h.runCmd(curl({number: +publicPr, action: 'foo'})).then(h.verifyResponse(200)),
+          h.runCmd(curl({number: +hiddenPr, action: 'foo'})).then(h.verifyResponse(200)),
+        ]).
+        // Visibilities should not have changed, because the specified action could not have triggered a change.
+        then(checkVisibilities).
+        then(done);
+    });
+
+
+    it('should do nothing if \'action\' implies no visibility change', done => {
+      const publicPr = pr;
+      const hiddenPr = String(c.BV_getPrIsTrusted_notTrusted);
+      const checkVisibilities = () => {
+        // Public build is hidden atm.
+        expect(h.buildExists(publicPr, '', false)).toBe(true);
+        expect(h.buildExists(publicPr, '', true)).toBe(false);
+        // Hidden build is public atm.
+        expect(h.buildExists(hiddenPr, '', false)).toBe(false);
+        expect(h.buildExists(hiddenPr, '', true)).toBe(true);
+      };
+
+      h.createDummyBuild(publicPr, sha9, false);
+      h.createDummyBuild(hiddenPr, sha9, true);
+      checkVisibilities();
+
+      Promise.
+        all([
+          h.runCmd(curl({number: +publicPr, action: 'foo'})).then(h.verifyResponse(200)),
+          h.runCmd(curl({number: +hiddenPr, action: 'foo'})).then(h.verifyResponse(200)),
+        ]).
+        // Visibilities should not have changed, because the specified action could not have triggered a change.
+        then(checkVisibilities).
+        then(done);
+    });
+
+
+    describe('when the visiblity has changed', () => {
+      const publicPr = pr;
+      const hiddenPr = String(c.BV_getPrIsTrusted_notTrusted);
+
+      beforeEach(() => {
+        // Create initial PR builds with opposite visibilities as the ones that will be reported:
+        // - The now public PR was previously hidden.
+        // - The now hidden PR was previously public.
+        h.createDummyBuild(publicPr, sha9, false);
+        h.createDummyBuild(hiddenPr, sha9, true);
+
+        expect(h.buildExists(publicPr, '', false)).toBe(true);
+        expect(h.buildExists(publicPr, '', true)).toBe(false);
+        expect(h.buildExists(hiddenPr, '', false)).toBe(false);
+        expect(h.buildExists(hiddenPr, '', true)).toBe(true);
+      });
+      afterEach(() => {
+        // Expect PRs' visibility to have been updated:
+        // - The public PR should be actually public (previously it was hidden).
+        // - The hidden PR should be actually hidden (previously it was public).
+        expect(h.buildExists(publicPr, '', false)).toBe(false);
+        expect(h.buildExists(publicPr, '', true)).toBe(true);
+        expect(h.buildExists(hiddenPr, '', false)).toBe(true);
+        expect(h.buildExists(hiddenPr, '', true)).toBe(false);
+
+        h.deletePrDir(publicPr, true);
+        h.deletePrDir(hiddenPr, false);
+      });
+
+
+      it('should update the PR\'s visibility (action: undefined)', done => {
+        Promise.all([
+          h.runCmd(curl({number: +publicPr})).then(h.verifyResponse(200)),
+          h.runCmd(curl({number: +hiddenPr})).then(h.verifyResponse(200)),
+        ]).then(done);
+      });
+
+
+      it('should update the PR\'s visibility (action: labeled)', done => {
+        Promise.all([
+          h.runCmd(curl({number: +publicPr, action: 'labeled'})).then(h.verifyResponse(200)),
+          h.runCmd(curl({number: +hiddenPr, action: 'labeled'})).then(h.verifyResponse(200)),
+        ]).then(done);
+      });
+
+
+      it('should update the PR\'s visibility (action: unlabeled)', done => {
+        Promise.all([
+          h.runCmd(curl({number: +publicPr, action: 'unlabeled'})).then(h.verifyResponse(200)),
+          h.runCmd(curl({number: +hiddenPr, action: 'unlabeled'})).then(h.verifyResponse(200)),
+        ]).then(done);
+      });
+
+    });
+
+  });
+
+
   describe(`${host}/*`, () => {
 
-    it('should respond with 404 for GET requests to unknown URLs', done => {
+    it('should respond with 404 for requests to unknown URLs', done => {
       const bodyRegex = /^Unknown resource/;
 
       Promise.all([
         h.runCmd(`curl -iL http://${host}/index.html`).then(h.verifyResponse(404, bodyRegex)),
         h.runCmd(`curl -iL http://${host}/`).then(h.verifyResponse(404, bodyRegex)),
         h.runCmd(`curl -iL http://${host}`).then(h.verifyResponse(404, bodyRegex)),
-      ]).then(done);
-    });
-
-
-    it('should respond with 405 for non-GET requests to any URL', done => {
-      const bodyRegex = /^Unsupported method/;
-
-      Promise.all([
-        h.runCmd(`curl -iLX PUT http://${host}`).then(h.verifyResponse(405, bodyRegex)),
-        h.runCmd(`curl -iLX POST http://${host}`).then(h.verifyResponse(405, bodyRegex)),
-        h.runCmd(`curl -iLX PATCH http://${host}`).then(h.verifyResponse(405, bodyRegex)),
-        h.runCmd(`curl -iLX DELETE http://${host}`).then(h.verifyResponse(405, bodyRegex)),
+        h.runCmd(`curl -iLX PUT http://${host}`).then(h.verifyResponse(404, bodyRegex)),
+        h.runCmd(`curl -iLX POST http://${host}`).then(h.verifyResponse(404, bodyRegex)),
+        h.runCmd(`curl -iLX PATCH http://${host}`).then(h.verifyResponse(404, bodyRegex)),
+        h.runCmd(`curl -iLX DELETE http://${host}`).then(h.verifyResponse(404, bodyRegex)),
       ]).then(done);
     });
 

aio/aio-builds-setup/dockerbuild/scripts-js/package.json

@@ -8,7 +8,7 @@
   "scripts": {
     "prebuild": "yarn clean-dist",
     "build": "tsc",
-    "build-watch": "yarn tsc -- --watch",
+    "build-watch": "yarn tsc --watch",
     "clean-dist": "node --eval \"require('shelljs').rm('-rf', 'dist')\"",
     "dev": "concurrently --kill-others --raw --success first \"yarn build-watch\" \"yarn test-watch\"",
     "lint": "tslint --project tsconfig.json",
@@ -20,24 +20,26 @@
     "test-watch": "nodemon --exec \"yarn ~~test-only\" --watch dist"
   },
   "dependencies": {
-    "express": "^4.14.1",
-    "jasmine": "^2.5.3",
-    "jsonwebtoken": "^7.3.0",
-    "shelljs": "^0.7.6"
+    "body-parser": "^1.18.2",
+    "express": "^4.15.4",
+    "jasmine": "^2.8.0",
+    "jsonwebtoken": "^8.0.1",
+    "shelljs": "^0.7.8",
+    "tslib": "^1.7.1"
   },
   "devDependencies": {
-    "@types/express": "^4.0.35",
-    "@types/jasmine": "^2.5.43",
-    "@types/jsonwebtoken": "^7.2.0",
-    "@types/node": "^7.0.5",
-    "@types/shelljs": "^0.7.0",
-    "@types/supertest": "^2.0.0",
-    "concurrently": "^3.3.0",
-    "eslint": "^3.15.0",
-    "eslint-plugin-jasmine": "^2.2.0",
-    "nodemon": "^1.11.0",
+    "@types/body-parser": "^1.16.5",
+    "@types/express": "^4.0.37",
+    "@types/jasmine": "^2.6.0",
+    "@types/jsonwebtoken": "^7.2.3",
+    "@types/node": "^8.0.30",
+    "@types/shelljs": "^0.7.4",
+    "@types/supertest": "^2.0.3",
+    "concurrently": "^3.5.0",
+    "nodemon": "^1.12.1",
     "supertest": "^3.0.0",
-    "tslint": "^4.4.2",
-    "typescript": "^2.1.6"
+    "tslint": "^5.7.0",
+    "tslint-jasmine-noSkipOrFocus": "^1.0.8",
+    "typescript": "^2.5.2"
   }
 }

aio/aio-builds-setup/dockerbuild/scripts-js/test/clean-up/build-cleaner.spec.ts

@@ -1,7 +1,9 @@
 // Imports
 import * as fs from 'fs';
+import * as path from 'path';
 import * as shell from 'shelljs';
 import {BuildCleaner} from '../../lib/clean-up/build-cleaner';
+import {HIDDEN_DIR_PREFIX} from '../../lib/common/constants';
 import {GithubPullRequests} from '../../lib/common/github-pull-requests';
 
 // Tests
@@ -37,8 +39,8 @@ describe('BuildCleaner', () => {
     let cleanerGetExistingBuildNumbersSpy: jasmine.Spy;
     let cleanerGetOpenPrNumbersSpy: jasmine.Spy;
     let cleanerRemoveUnnecessaryBuildsSpy: jasmine.Spy;
-    let existingBuildsDeferred: {resolve: Function, reject: Function};
-    let openPrsDeferred: {resolve: Function, reject: Function};
+    let existingBuildsDeferred: {resolve: (v?: any) => void, reject: (e?: any) => void};
+    let openPrsDeferred: {resolve: (v?: any) => void, reject: (e?: any) => void};
     let promise: Promise<void>;
 
     beforeEach(() => {
@@ -114,7 +116,7 @@ describe('BuildCleaner', () => {
 
     it('should resolve with the value returned by \'removeUnnecessaryBuilds()\'', done => {
       promise.then(result => {
-        expect(result).toBe('Test');
+        expect(result as any).toBe('Test');
         done();
       });
 
@@ -170,6 +172,16 @@ describe('BuildCleaner', () => {
     });
 
 
+    it('should remove `HIDDEN_DIR_PREFIX` from the filenames', done => {
+      promise.then(result => {
+        expect(result).toEqual([12, 34, 56]);
+        done();
+      });
+
+      readdirCb(null, [`${HIDDEN_DIR_PREFIX}12`, '34', `${HIDDEN_DIR_PREFIX}56`]);
+    });
+
+
     it('should ignore files with non-numeric (or zero) names', done => {
       promise.then(result => {
         expect(result).toEqual([12, 34, 56]);
@@ -183,7 +195,7 @@ describe('BuildCleaner', () => {
 
 
   describe('getOpenPrNumbers()', () => {
-    let prDeferred: {resolve: Function, reject: Function};
+    let prDeferred: {resolve: (v: any) => void, reject: (v: any) => void};
     let promise: Promise<number[]>;
 
     beforeEach(() => {
@@ -230,10 +242,22 @@ describe('BuildCleaner', () => {
   describe('removeDir()', () => {
     let shellChmodSpy: jasmine.Spy;
     let shellRmSpy: jasmine.Spy;
+    let shellTestSpy: jasmine.Spy;
 
     beforeEach(() => {
       shellChmodSpy = spyOn(shell, 'chmod');
       shellRmSpy = spyOn(shell, 'rm');
+      shellTestSpy = spyOn(shell, 'test').and.returnValue(true);
+    });
+
+
+    it('should test if the directory exists (and return if is does not)', () => {
+      shellTestSpy.and.returnValue(false);
+      (cleaner as any).removeDir('/foo/bar');
+
+      expect(shellTestSpy).toHaveBeenCalledWith('-d', '/foo/bar');
+      expect(shellChmodSpy).not.toHaveBeenCalled();
+      expect(shellRmSpy).not.toHaveBeenCalled();
     });
 
 
@@ -253,7 +277,10 @@ describe('BuildCleaner', () => {
 
     it('should catch errors and log them', () => {
       const consoleErrorSpy = spyOn(console, 'error');
-      shellRmSpy.and.callFake(() => { throw 'Test'; });
+      shellRmSpy.and.callFake(() => {
+        // tslint:disable-next-line: no-string-throw
+        throw 'Test';
+      });
 
       (cleaner as any).removeDir('/foo/bar');
 
@@ -287,17 +314,28 @@ describe('BuildCleaner', () => {
     it('should construct full paths to directories (by prepending \'buildsDir\')', () => {
       (cleaner as any).removeUnnecessaryBuilds([1, 2, 3], []);
 
-      expect(cleanerRemoveDirSpy).toHaveBeenCalledWith('/foo/bar/1');
-      expect(cleanerRemoveDirSpy).toHaveBeenCalledWith('/foo/bar/2');
-      expect(cleanerRemoveDirSpy).toHaveBeenCalledWith('/foo/bar/3');
+      expect(cleanerRemoveDirSpy).toHaveBeenCalledWith(path.normalize('/foo/bar/1'));
+      expect(cleanerRemoveDirSpy).toHaveBeenCalledWith(path.normalize('/foo/bar/2'));
+      expect(cleanerRemoveDirSpy).toHaveBeenCalledWith(path.normalize('/foo/bar/3'));
+    });
+
+
+    it('should try removing hidden directories as well', () => {
+      (cleaner as any).removeUnnecessaryBuilds([1, 2, 3], []);
+
+      expect(cleanerRemoveDirSpy).toHaveBeenCalledWith(path.normalize(`/foo/bar/${HIDDEN_DIR_PREFIX}1`));
+      expect(cleanerRemoveDirSpy).toHaveBeenCalledWith(path.normalize(`/foo/bar/${HIDDEN_DIR_PREFIX}2`));
+      expect(cleanerRemoveDirSpy).toHaveBeenCalledWith(path.normalize(`/foo/bar/${HIDDEN_DIR_PREFIX}3`));
     });
 
 
     it('should remove the builds that do not correspond to open PRs', () => {
       (cleaner as any).removeUnnecessaryBuilds([1, 2, 3, 4], [2, 4]);
-      expect(cleanerRemoveDirSpy).toHaveBeenCalledTimes(2);
-      expect(cleanerRemoveDirSpy).toHaveBeenCalledWith('/foo/bar/1');
-      expect(cleanerRemoveDirSpy).toHaveBeenCalledWith('/foo/bar/3');
+      expect(cleanerRemoveDirSpy).toHaveBeenCalledTimes(4);
+      expect(cleanerRemoveDirSpy).toHaveBeenCalledWith(path.normalize('/foo/bar/1'));
+      expect(cleanerRemoveDirSpy).toHaveBeenCalledWith(path.normalize('/foo/bar/3'));
+      expect(cleanerRemoveDirSpy).toHaveBeenCalledWith(path.normalize(`/foo/bar/${HIDDEN_DIR_PREFIX}1`));
+      expect(cleanerRemoveDirSpy).toHaveBeenCalledWith(path.normalize(`/foo/bar/${HIDDEN_DIR_PREFIX}3`));
       cleanerRemoveDirSpy.calls.reset();
 
       (cleaner as any).removeUnnecessaryBuilds([1, 2, 3, 4], [1, 2, 3, 4]);
@@ -305,11 +343,15 @@ describe('BuildCleaner', () => {
       cleanerRemoveDirSpy.calls.reset();
 
       (cleaner as any).removeUnnecessaryBuilds([1, 2, 3, 4], []);
-      expect(cleanerRemoveDirSpy).toHaveBeenCalledTimes(4);
-      expect(cleanerRemoveDirSpy).toHaveBeenCalledWith('/foo/bar/1');
-      expect(cleanerRemoveDirSpy).toHaveBeenCalledWith('/foo/bar/2');
-      expect(cleanerRemoveDirSpy).toHaveBeenCalledWith('/foo/bar/3');
-      expect(cleanerRemoveDirSpy).toHaveBeenCalledWith('/foo/bar/4');
+      expect(cleanerRemoveDirSpy).toHaveBeenCalledTimes(8);
+      expect(cleanerRemoveDirSpy).toHaveBeenCalledWith(path.normalize('/foo/bar/1'));
+      expect(cleanerRemoveDirSpy).toHaveBeenCalledWith(path.normalize('/foo/bar/2'));
+      expect(cleanerRemoveDirSpy).toHaveBeenCalledWith(path.normalize('/foo/bar/3'));
+      expect(cleanerRemoveDirSpy).toHaveBeenCalledWith(path.normalize('/foo/bar/4'));
+      expect(cleanerRemoveDirSpy).toHaveBeenCalledWith(path.normalize(`/foo/bar/${HIDDEN_DIR_PREFIX}1`));
+      expect(cleanerRemoveDirSpy).toHaveBeenCalledWith(path.normalize(`/foo/bar/${HIDDEN_DIR_PREFIX}2`));
+      expect(cleanerRemoveDirSpy).toHaveBeenCalledWith(path.normalize(`/foo/bar/${HIDDEN_DIR_PREFIX}3`));
+      expect(cleanerRemoveDirSpy).toHaveBeenCalledWith(path.normalize(`/foo/bar/${HIDDEN_DIR_PREFIX}4`));
       cleanerRemoveDirSpy.calls.reset();
     });
 

aio/aio-builds-setup/dockerbuild/scripts-js/test/common/github-api.spec.ts

@@ -56,7 +56,7 @@ describe('GithubApi', () => {
 
 
     it('should not pass data to \'request()\'', () => {
-      (api.get as Function)('foo', {}, {});
+      (api.get as any)('foo', {}, {});
 
       expect(apiRequestSpy).toHaveBeenCalled();
       expect(apiRequestSpy.calls.argsFor(0)[2]).toBeUndefined();
@@ -144,7 +144,7 @@ describe('GithubApi', () => {
 
 
   describe('getPaginated()', () => {
-    let deferreds: {resolve: Function, reject: Function}[];
+    let deferreds: {resolve: (v: any) => void, reject: (v: any) => void}[];
 
     beforeEach(() => {
       deferreds = [];
@@ -292,7 +292,7 @@ describe('GithubApi', () => {
 
 
     describe('onResponse', () => {
-      let promise: Promise<void>;
+      let promise: Promise<object>;
       let respond: (statusCode: number) => IncomingMessage;
 
       beforeEach(() => {

aio/aio-builds-setup/dockerbuild/scripts-js/test/common/github-pull-requests.spec.ts

@@ -22,7 +22,7 @@ describe('GithubPullRequests', () => {
 
   describe('addComment()', () => {
     let prs: GithubPullRequests;
-    let deferred: {resolve: Function, reject: Function};
+    let deferred: {resolve: (v: any) => void, reject: (v: any) => void};
 
     beforeEach(() => {
       prs = new GithubPullRequests('12345', 'foo/bar');
@@ -66,7 +66,7 @@ describe('GithubPullRequests', () => {
 
     it('should resolve with the returned response', done => {
       prs.addComment(42, 'body').then(data => {
-        expect(data).toEqual('Test');
+        expect(data as any).toBe('Test');
         done();
       });
 
@@ -76,6 +76,30 @@ describe('GithubPullRequests', () => {
   });
 
 
+  describe('fetch()', () => {
+    let prs: GithubPullRequests;
+    let prsGetSpy: jasmine.Spy;
+
+    beforeEach(() => {
+      prs = new GithubPullRequests('12345', 'foo/bar');
+      prsGetSpy = spyOn(prs as any, 'get');
+    });
+
+
+    it('should call \'get()\' with the correct pathname', () => {
+      prs.fetch(42);
+      expect(prsGetSpy).toHaveBeenCalledWith('/repos/foo/bar/issues/42');
+    });
+
+
+    it('should forward the value returned by \'get()\'', () => {
+      prsGetSpy.and.returnValue('Test');
+      expect(prs.fetch(42) as any).toBe('Test');
+    });
+
+  });
+
+
   describe('fetchAll()', () => {
     let prs: GithubPullRequests;
     let prsGetPaginatedSpy: jasmine.Spy;
@@ -109,7 +133,7 @@ describe('GithubPullRequests', () => {
 
     it('should forward the value returned by \'getPaginated()\'', () => {
       prsGetPaginatedSpy.and.returnValue('Test');
-      expect(prs.fetchAll()).toBe('Test');
+      expect(prs.fetchAll() as any).toBe('Test');
     });
 
   });

aio/aio-builds-setup/dockerbuild/scripts-js/test/common/github-teams.spec.ts

@@ -38,7 +38,7 @@ describe('GithubTeams', () => {
 
     it('should forward the value returned by \'getPaginated()\'', () => {
       teamsGetPaginatedSpy.and.returnValue('Test');
-      expect(teams.fetchAll()).toBe('Test');
+      expect(teams.fetchAll() as any).toBe('Test');
     });
 
   });
@@ -50,12 +50,16 @@ describe('GithubTeams', () => {
 
     beforeEach(() => {
       teams = new GithubTeams('12345', 'foo');
-      teamsGetSpy = spyOn(teams, 'get');
+      teamsGetSpy = spyOn(teams, 'get').and.returnValue(Promise.resolve(null));
     });
 
 
-    it('should return a promise', () => {
-      expect(teams.isMemberById('user', [1])).toEqual(jasmine.any(Promise));
+    it('should return a promise', done => {
+      const promise = teams.isMemberById('user', [1]);
+      promise.then(done);   // Do not complete the test (and release the spies) synchronously
+                            // to avoid running the actual `get()`.
+
+      expect(promise).toEqual(jasmine.any(Promise));
     });
 
 
@@ -69,7 +73,6 @@ describe('GithubTeams', () => {
 
 
     it('should call \'get()\' with the correct pathname', done => {
-      teamsGetSpy.and.returnValue(Promise.resolve(null));
       teams.isMemberById('user', [1]).then(() => {
         expect(teamsGetSpy).toHaveBeenCalledWith('/teams/1/memberships/user');
         done();

aio/aio-builds-setup/dockerbuild/scripts-js/test/upload-server/build-creator.spec.ts

@@ -2,9 +2,11 @@
 import * as cp from 'child_process';
 import {EventEmitter} from 'events';
 import * as fs from 'fs';
+import * as path from 'path';
 import * as shell from 'shelljs';
+import {SHORT_SHA_LEN} from '../../lib/common/constants';
 import {BuildCreator} from '../../lib/upload-server/build-creator';
-import {CreatedBuildEvent} from '../../lib/upload-server/build-events';
+import {ChangedPrVisibilityEvent, CreatedBuildEvent} from '../../lib/upload-server/build-events';
 import {UploadError} from '../../lib/upload-server/upload-error';
 import {expectToBeUploadError} from './helpers';
 
@@ -12,10 +14,13 @@ import {expectToBeUploadError} from './helpers';
 describe('BuildCreator', () => {
   const pr = '9';
   const sha = '9'.repeat(40);
+  const shortSha = sha.substr(0, SHORT_SHA_LEN);
   const archive = 'snapshot.tar.gz';
   const buildsDir = 'builds/dir';
-  const prDir = `${buildsDir}/${pr}`;
-  const shaDir = `${prDir}/${sha}`;
+  const hiddenPrDir = path.join(buildsDir, `hidden--${pr}`);
+  const publicPrDir = path.join(buildsDir, pr);
+  const hiddenShaDir = path.join(hiddenPrDir, shortSha);
+  const publicShaDir = path.join(publicPrDir, shortSha);
   let bc: BuildCreator;
 
   beforeEach(() => bc = new BuildCreator(buildsDir));
@@ -42,6 +47,7 @@ describe('BuildCreator', () => {
     let bcEmitSpy: jasmine.Spy;
     let bcExistsSpy: jasmine.Spy;
     let bcExtractArchiveSpy: jasmine.Spy;
+    let bcUpdatePrVisibilitySpy: jasmine.Spy;
     let shellMkdirSpy: jasmine.Spy;
     let shellRmSpy: jasmine.Spy;
 
@@ -49,13 +55,217 @@ describe('BuildCreator', () => {
       bcEmitSpy = spyOn(bc, 'emit');
       bcExistsSpy = spyOn(bc as any, 'exists');
       bcExtractArchiveSpy = spyOn(bc as any, 'extractArchive');
+      bcUpdatePrVisibilitySpy = spyOn(bc, 'updatePrVisibility');
       shellMkdirSpy = spyOn(shell, 'mkdir');
       shellRmSpy = spyOn(shell, 'rm');
     });
 
 
+    [true, false].forEach(isPublic => {
+      const prDir = isPublic ? publicPrDir : hiddenPrDir;
+      const shaDir = isPublic ? publicShaDir : hiddenShaDir;
+
+
+      it('should return a promise', done => {
+        const promise = bc.create(pr, sha, archive, isPublic);
+        promise.then(done);   // Do not complete the test (and release the spies) synchronously
+                              // to avoid running the actual `extractArchive()`.
+
+        expect(promise).toEqual(jasmine.any(Promise));
+      });
+
+
+      it('should update the PR\'s visibility first if necessary', done => {
+        bcUpdatePrVisibilitySpy.and.callFake(() => expect(shellMkdirSpy).not.toHaveBeenCalled());
+
+        bc.create(pr, sha, archive, isPublic).
+          then(() => {
+            expect(bcUpdatePrVisibilitySpy).toHaveBeenCalledWith(pr, isPublic);
+            expect(shellMkdirSpy).toHaveBeenCalled();
+          }).
+          then(done);
+      });
+
+
+      it('should create the build directory (and any parent directories)', done => {
+        bc.create(pr, sha, archive, isPublic).
+          then(() => expect(shellMkdirSpy).toHaveBeenCalledWith('-p', shaDir)).
+          then(done);
+      });
+
+
+      it('should extract the archive contents into the build directory', done => {
+        bc.create(pr, sha, archive, isPublic).
+          then(() => expect(bcExtractArchiveSpy).toHaveBeenCalledWith(archive, shaDir)).
+          then(done);
+      });
+
+
+      it('should emit a CreatedBuildEvent on success', done => {
+        let emitted = false;
+
+        bcEmitSpy.and.callFake((type: string, evt: CreatedBuildEvent) => {
+          expect(type).toBe(CreatedBuildEvent.type);
+          expect(evt).toEqual(jasmine.any(CreatedBuildEvent));
+          expect(evt.pr).toBe(+pr);
+          expect(evt.sha).toBe(shortSha);
+          expect(evt.isPublic).toBe(isPublic);
+
+          emitted = true;
+        });
+
+        bc.create(pr, sha, archive, isPublic).
+          then(() => expect(emitted).toBe(true)).
+          then(done);
+      });
+
+
+      describe('on error', () => {
+        let existsValues: {[dir: string]: boolean};
+
+        beforeEach(() => {
+          existsValues = {
+            [prDir]: false,
+            [shaDir]: false,
+          };
+
+          bcExistsSpy.and.callFake((dir: string) => existsValues[dir]);
+        });
+
+
+        it('should abort and skip further operations if changing the PR\'s visibility fails', done => {
+          const mockError = new UploadError(543, 'Test');
+          bcUpdatePrVisibilitySpy.and.returnValue(Promise.reject(mockError));
+
+          bc.create(pr, sha, archive, isPublic).catch(err => {
+            expect(err).toBe(mockError);
+
+            expect(bcExistsSpy).not.toHaveBeenCalled();
+            expect(shellMkdirSpy).not.toHaveBeenCalled();
+            expect(bcExtractArchiveSpy).not.toHaveBeenCalled();
+            expect(bcEmitSpy).not.toHaveBeenCalled();
+
+            done();
+          });
+        });
+
+
+        it('should abort and skip further operations if the build does already exist', done => {
+          existsValues[shaDir] = true;
+          bc.create(pr, sha, archive, isPublic).catch(err => {
+            const publicOrNot = isPublic ? 'public' : 'non-public';
+            expectToBeUploadError(err, 409, `Request to overwrite existing ${publicOrNot} directory: ${shaDir}`);
+            expect(shellMkdirSpy).not.toHaveBeenCalled();
+            expect(bcExtractArchiveSpy).not.toHaveBeenCalled();
+            expect(bcEmitSpy).not.toHaveBeenCalled();
+            done();
+          });
+        });
+
+
+        it('should detect existing build directory after visibility change', done => {
+          bcUpdatePrVisibilitySpy.and.callFake(() => existsValues[prDir] = existsValues[shaDir] = true);
+
+          expect(bcExistsSpy(prDir)).toBe(false);
+          expect(bcExistsSpy(shaDir)).toBe(false);
+
+          bc.create(pr, sha, archive, isPublic).catch(err => {
+            const publicOrNot = isPublic ? 'public' : 'non-public';
+            expectToBeUploadError(err, 409, `Request to overwrite existing ${publicOrNot} directory: ${shaDir}`);
+            expect(shellMkdirSpy).not.toHaveBeenCalled();
+            expect(bcExtractArchiveSpy).not.toHaveBeenCalled();
+            expect(bcEmitSpy).not.toHaveBeenCalled();
+            done();
+          });
+        });
+
+
+        it('should abort and skip further operations if it fails to create the directories', done => {
+          shellMkdirSpy.and.throwError('');
+          bc.create(pr, sha, archive, isPublic).catch(() => {
+            expect(shellMkdirSpy).toHaveBeenCalled();
+            expect(bcExtractArchiveSpy).not.toHaveBeenCalled();
+            expect(bcEmitSpy).not.toHaveBeenCalled();
+            done();
+          });
+        });
+
+
+        it('should abort and skip further operations if it fails to extract the archive', done => {
+          bcExtractArchiveSpy.and.throwError('');
+          bc.create(pr, sha, archive, isPublic).catch(() => {
+            expect(shellMkdirSpy).toHaveBeenCalled();
+            expect(bcExtractArchiveSpy).toHaveBeenCalled();
+            expect(bcEmitSpy).not.toHaveBeenCalled();
+            done();
+          });
+        });
+
+
+        it('should delete the PR directory (for new PR)', done => {
+          bcExtractArchiveSpy.and.throwError('');
+          bc.create(pr, sha, archive, isPublic).catch(() => {
+            expect(shellRmSpy).toHaveBeenCalledWith('-rf', prDir);
+            done();
+          });
+        });
+
+
+        it('should delete the SHA directory (for existing PR)', done => {
+          existsValues[prDir] = true;
+          bcExtractArchiveSpy.and.throwError('');
+
+          bc.create(pr, sha, archive, isPublic).catch(() => {
+            expect(shellRmSpy).toHaveBeenCalledWith('-rf', shaDir);
+            done();
+          });
+        });
+
+
+        it('should reject with an UploadError', done => {
+          // tslint:disable-next-line: no-string-throw
+          shellMkdirSpy.and.callFake(() => { throw 'Test'; });
+          bc.create(pr, sha, archive, isPublic).catch(err => {
+            expectToBeUploadError(err, 500, `Error while uploading to directory: ${shaDir}\nTest`);
+            done();
+          });
+        });
+
+
+        it('should pass UploadError instances unmodified', done => {
+          shellMkdirSpy.and.callFake(() => { throw new UploadError(543, 'Test'); });
+          bc.create(pr, sha, archive, isPublic).catch(err => {
+            expectToBeUploadError(err, 543, 'Test');
+            done();
+          });
+        });
+
+      });
+
+    });
+
+  });
+
+
+  describe('updatePrVisibility()', () => {
+    let bcEmitSpy: jasmine.Spy;
+    let bcExistsSpy: jasmine.Spy;
+    let bcListShasByDate: jasmine.Spy;
+    let shellMvSpy: jasmine.Spy;
+
+    beforeEach(() => {
+      bcEmitSpy = spyOn(bc, 'emit');
+      bcExistsSpy = spyOn(bc as any, 'exists');
+      bcListShasByDate = spyOn(bc as any, 'listShasByDate');
+      shellMvSpy = spyOn(shell, 'mv');
+
+      bcExistsSpy.and.returnValues(Promise.resolve(true), Promise.resolve(false));
+      bcListShasByDate.and.returnValue([]);
+    });
+
+
     it('should return a promise', done => {
-      const promise = bc.create(pr, sha, archive);
+      const promise = bc.updatePrVisibility(pr, true);
       promise.then(done);   // Do not complete the test (and release the spies) synchronously
                             // to avoid running the actual `extractArchive()`.
 
@@ -63,106 +273,158 @@ describe('BuildCreator', () => {
     });
 
 
-    it('should throw if the build does already exist', done => {
-      bcExistsSpy.and.returnValue(true);
-      bc.create(pr, sha, archive).catch(err => {
-        expectToBeUploadError(err, 409, `Request to overwrite existing directory: ${shaDir}`);
-        done();
-      });
-    });
+    [true, false].forEach(makePublic => {
+      const oldPrDir = makePublic ? hiddenPrDir : publicPrDir;
+      const newPrDir = makePublic ? publicPrDir : hiddenPrDir;
 
 
-    it('should create the build directory (and any parent directories)', done => {
-      bc.create(pr, sha, archive).
-        then(() => expect(shellMkdirSpy).toHaveBeenCalledWith('-p', shaDir)).
-        then(done);
-    });
-
-
-    it('should extract the archive contents into the build directory', done => {
-      bc.create(pr, sha, archive).
-        then(() => expect(bcExtractArchiveSpy).toHaveBeenCalledWith(archive, shaDir)).
-        then(done);
-    });
-
-
-    it('should emit a CreatedBuildEvent on success', done => {
-      let emitted = false;
-
-      bcEmitSpy.and.callFake((type: string, evt: CreatedBuildEvent) => {
-        expect(type).toBe(CreatedBuildEvent.type);
-        expect(evt).toEqual(jasmine.any(CreatedBuildEvent));
-        expect(evt.pr).toBe(+pr);
-        expect(evt.sha).toBe(sha);
-
-        emitted = true;
+      it('should rename the directory', done => {
+        bc.updatePrVisibility(pr, makePublic).
+          then(() => expect(shellMvSpy).toHaveBeenCalledWith(oldPrDir, newPrDir)).
+          then(done);
       });
 
-      bc.create(pr, sha, archive).
-        then(() => expect(emitted).toBe(true)).
-        then(done);
-    });
 
+      describe('when the visibility is updated', () => {
 
-    describe('on error', () => {
-
-      it('should abort and skip further operations if it fails to create the directories', done => {
-        shellMkdirSpy.and.throwError('');
-        bc.create(pr, sha, archive).catch(() => {
-          expect(shellMkdirSpy).toHaveBeenCalled();
-          expect(bcExtractArchiveSpy).not.toHaveBeenCalled();
-          expect(bcEmitSpy).not.toHaveBeenCalled();
-          done();
+        it('should resolve to true', done => {
+          bc.updatePrVisibility(pr, makePublic).
+            then(result => expect(result).toBe(true)).
+            then(done);
         });
+
+
+        it('should rename the directory', done => {
+          bc.updatePrVisibility(pr, makePublic).
+            then(() => expect(shellMvSpy).toHaveBeenCalledWith(oldPrDir, newPrDir)).
+            then(done);
+        });
+
+
+        it('should emit a ChangedPrVisibilityEvent on success', done => {
+          let emitted = false;
+
+          bcEmitSpy.and.callFake((type: string, evt: ChangedPrVisibilityEvent) => {
+            expect(type).toBe(ChangedPrVisibilityEvent.type);
+            expect(evt).toEqual(jasmine.any(ChangedPrVisibilityEvent));
+            expect(evt.pr).toBe(+pr);
+            expect(evt.shas).toEqual(jasmine.any(Array));
+            expect(evt.isPublic).toBe(makePublic);
+
+            emitted = true;
+          });
+
+          bc.updatePrVisibility(pr, makePublic).
+            then(() => expect(emitted).toBe(true)).
+            then(done);
+        });
+
+
+        it('should include all shas in the emitted event', done => {
+          const shas = ['foo', 'bar', 'baz'];
+          let emitted = false;
+
+          bcListShasByDate.and.returnValue(Promise.resolve(shas));
+          bcEmitSpy.and.callFake((type: string, evt: ChangedPrVisibilityEvent) => {
+            expect(bcListShasByDate).toHaveBeenCalledWith(newPrDir);
+
+            expect(type).toBe(ChangedPrVisibilityEvent.type);
+            expect(evt).toEqual(jasmine.any(ChangedPrVisibilityEvent));
+            expect(evt.pr).toBe(+pr);
+            expect(evt.shas).toBe(shas);
+            expect(evt.isPublic).toBe(makePublic);
+
+            emitted = true;
+          });
+
+          bc.updatePrVisibility(pr, makePublic).
+            then(() => expect(emitted).toBe(true)).
+            then(done);
+        });
+
       });
 
 
-      it('should abort and skip further operations if it fails to extract the archive', done => {
-        bcExtractArchiveSpy.and.throwError('');
-        bc.create(pr, sha, archive).catch(() => {
-          expect(shellMkdirSpy).toHaveBeenCalled();
-          expect(bcExtractArchiveSpy).toHaveBeenCalled();
-          expect(bcEmitSpy).not.toHaveBeenCalled();
-          done();
-        });
+      it('should do nothing if the visibility is already up-to-date', done => {
+        bcExistsSpy.and.callFake((dir: string) => dir === newPrDir);
+        bc.updatePrVisibility(pr, makePublic).
+          then(result => {
+            expect(result).toBe(false);
+            expect(shellMvSpy).not.toHaveBeenCalled();
+            expect(bcListShasByDate).not.toHaveBeenCalled();
+            expect(bcEmitSpy).not.toHaveBeenCalled();
+          }).
+          then(done);
       });
 
 
-      it('should delete the PR directory (for new PR)', done => {
-        bcExtractArchiveSpy.and.throwError('');
-        bc.create(pr, sha, archive).catch(() => {
-          expect(shellRmSpy).toHaveBeenCalledWith('-rf', prDir);
-          done();
-        });
+      it('should do nothing if the PR directory does not exist', done => {
+        bcExistsSpy.and.returnValue(false);
+        bc.updatePrVisibility(pr, makePublic).
+          then(result => {
+            expect(result).toBe(false);
+            expect(shellMvSpy).not.toHaveBeenCalled();
+            expect(bcListShasByDate).not.toHaveBeenCalled();
+            expect(bcEmitSpy).not.toHaveBeenCalled();
+          }).
+          then(done);
       });
 
 
-      it('should delete the SHA directory (for existing PR)', done => {
-        bcExistsSpy.and.callFake((path: string) => path !== shaDir);
-        bcExtractArchiveSpy.and.throwError('');
+      describe('on error', () => {
 
-        bc.create(pr, sha, archive).catch(() => {
-          expect(shellRmSpy).toHaveBeenCalledWith('-rf', shaDir);
-          done();
+        it('should abort and skip further operations if both directories exist', done => {
+          bcExistsSpy.and.returnValue(true);
+          bc.updatePrVisibility(pr, makePublic).catch(err => {
+            expectToBeUploadError(err, 409, `Request to move '${oldPrDir}' to existing directory '${newPrDir}'.`);
+            expect(shellMvSpy).not.toHaveBeenCalled();
+            expect(bcListShasByDate).not.toHaveBeenCalled();
+            expect(bcEmitSpy).not.toHaveBeenCalled();
+            done();
+          });
         });
-      });
 
 
-      it('should reject with an UploadError', done => {
-        shellMkdirSpy.and.callFake(() => {throw 'Test'; });
-        bc.create(pr, sha, archive).catch(err => {
-          expectToBeUploadError(err, 500, `Error while uploading to directory: ${shaDir}\nTest`);
-          done();
+        it('should abort and skip further operations if it fails to rename the directory', done => {
+          shellMvSpy.and.throwError('');
+          bc.updatePrVisibility(pr, makePublic).catch(() => {
+            expect(shellMvSpy).toHaveBeenCalled();
+            expect(bcListShasByDate).not.toHaveBeenCalled();
+            expect(bcEmitSpy).not.toHaveBeenCalled();
+            done();
+          });
         });
-      });
 
 
-      it('should pass UploadError instances unmodified', done => {
-        shellMkdirSpy.and.callFake(() => { throw new UploadError(543, 'Test'); });
-        bc.create(pr, sha, archive).catch(err => {
-          expectToBeUploadError(err, 543, 'Test');
-          done();
+        it('should abort and skip further operations if it fails to list the SHAs', done => {
+          bcListShasByDate.and.throwError('');
+          bc.updatePrVisibility(pr, makePublic).catch(() => {
+            expect(shellMvSpy).toHaveBeenCalled();
+            expect(bcListShasByDate).toHaveBeenCalled();
+            expect(bcEmitSpy).not.toHaveBeenCalled();
+            done();
+          });
         });
+
+
+        it('should reject with an UploadError', done => {
+          // tslint:disable-next-line: no-string-throw
+          shellMvSpy.and.callFake(() => { throw 'Test'; });
+          bc.updatePrVisibility(pr, makePublic).catch(err => {
+            expectToBeUploadError(err, 500, `Error while making PR ${pr} ${makePublic ? 'public' : 'hidden'}.\nTest`);
+            done();
+          });
+        });
+
+
+        it('should pass UploadError instances unmodified', done => {
+          shellMvSpy.and.callFake(() => { throw new UploadError(543, 'Test'); });
+          bc.updatePrVisibility(pr, makePublic).catch(err => {
+            expectToBeUploadError(err, 543, 'Test');
+            done();
+          });
+        });
+
       });
 
     });
@@ -174,11 +436,11 @@ describe('BuildCreator', () => {
 
   describe('exists()', () => {
     let fsAccessSpy: jasmine.Spy;
-    let fsAccessCbs: Function[];
+    let fsAccessCbs: ((v?: any) => void)[];
 
     beforeEach(() => {
       fsAccessCbs = [];
-      fsAccessSpy = spyOn(fs, 'access').and.callFake((_: string, cb: Function) => fsAccessCbs.push(cb));
+      fsAccessSpy = spyOn(fs, 'access').and.callFake((_: string, cb: (v?: any) => void) => fsAccessCbs.push(cb));
     });
 
 
@@ -222,7 +484,7 @@ describe('BuildCreator', () => {
     let shellChmodSpy: jasmine.Spy;
     let shellRmSpy: jasmine.Spy;
     let cpExecSpy: jasmine.Spy;
-    let cpExecCbs: Function[];
+    let cpExecCbs: ((...args: any[]) => void)[];
 
     beforeEach(() => {
       cpExecCbs = [];
@@ -230,7 +492,7 @@ describe('BuildCreator', () => {
       consoleWarnSpy = spyOn(console, 'warn');
       shellChmodSpy = spyOn(shell, 'chmod');
       shellRmSpy = spyOn(shell, 'rm');
-      cpExecSpy = spyOn(cp, 'exec').and.callFake((_: string, cb: Function) => cpExecCbs.push(cb));
+      cpExecSpy = spyOn(cp, 'exec').and.callFake((_: string, cb: (...args: any[]) => void) => cpExecCbs.push(cb));
     });
 
 
@@ -296,7 +558,11 @@ describe('BuildCreator', () => {
           done();
         });
 
-        shellChmodSpy.and.callFake(() => { throw 'Test'; });
+        shellChmodSpy.and.callFake(() => {
+          // tslint:disable-next-line: no-string-throw
+          throw 'Test';
+        });
+
         cpExecCbs[0]();
       });
 
@@ -309,7 +575,11 @@ describe('BuildCreator', () => {
           done();
         });
 
-        shellRmSpy.and.callFake(() => { throw 'Test'; });
+        shellRmSpy.and.callFake(() => {
+          // tslint:disable-next-line: no-string-throw
+          throw 'Test';
+        });
+
         cpExecCbs[0]();
       });
 
@@ -317,4 +587,101 @@ describe('BuildCreator', () => {
 
   });
 
+
+  describe('listShasByDate()', () => {
+    let shellLsSpy: jasmine.Spy;
+    const lsResult = (name: string, mtimeMs: number, isDirectory = true) => ({
+      isDirectory: () => isDirectory,
+      mtime: new Date(mtimeMs),
+      name,
+    });
+
+    beforeEach(() => {
+      shellLsSpy = spyOn(shell, 'ls').and.returnValue([]);
+    });
+
+
+    it('should return a promise', done => {
+      const promise = (bc as any).listShasByDate('input/dir');
+      promise.then(done);   // Do not complete the test (and release the spies) synchronously
+                            // to avoid running the actual `ls()`.
+
+      expect(promise).toEqual(jasmine.any(Promise));
+    });
+
+
+    it('should `ls()` files with their metadata', done => {
+      (bc as any).listShasByDate('input/dir').
+        then(() => expect(shellLsSpy).toHaveBeenCalledWith('-l', 'input/dir')).
+        then(done);
+    });
+
+
+    it('should reject if listing files fails', done => {
+      shellLsSpy.and.returnValue(Promise.reject('Test'));
+      (bc as any).listShasByDate('input/dir').catch((err: string) => {
+        expect(err).toBe('Test');
+        done();
+      });
+    });
+
+
+    it('should return the filenames', done => {
+      shellLsSpy.and.returnValue(Promise.resolve([
+        lsResult('foo', 100),
+        lsResult('bar', 200),
+        lsResult('baz', 300),
+      ]));
+
+      (bc as any).listShasByDate('input/dir').
+        then((shas: string[]) => expect(shas).toEqual(['foo', 'bar', 'baz'])).
+        then(done);
+    });
+
+
+    it('should sort by date', done => {
+      shellLsSpy.and.returnValue(Promise.resolve([
+        lsResult('foo', 300),
+        lsResult('bar', 100),
+        lsResult('baz', 200),
+      ]));
+
+      (bc as any).listShasByDate('input/dir').
+        then((shas: string[]) => expect(shas).toEqual(['bar', 'baz', 'foo'])).
+        then(done);
+    });
+
+
+    it('should not break with ShellJS\' custom `sort()` method', done => {
+      const mockArray = [
+        lsResult('foo', 300),
+        lsResult('bar', 100),
+        lsResult('baz', 200),
+      ];
+      mockArray.sort = jasmine.createSpy('sort');
+
+      shellLsSpy.and.returnValue(Promise.resolve(mockArray));
+      (bc as any).listShasByDate('input/dir').
+        then((shas: string[]) => {
+          expect(shas).toEqual(['bar', 'baz', 'foo']);
+          expect(mockArray.sort).not.toHaveBeenCalled();
+        }).
+        then(done);
+    });
+
+
+    it('should only include directories', done => {
+      shellLsSpy.and.returnValue(Promise.resolve([
+        lsResult('foo', 100),
+        lsResult('bar', 200, false),
+        lsResult('baz', 300),
+      ]));
+
+      (bc as any).listShasByDate('input/dir').
+        then((shas: string[]) => expect(shas).toEqual(['foo', 'baz'])).
+        then(done);
+    });
+
+  });
+
 });

aio/aio-builds-setup/dockerbuild/scripts-js/test/upload-server/build-events.spec.ts

@@ -1,15 +1,15 @@
 // Imports
-import {BuildEvent, CreatedBuildEvent} from '../../lib/upload-server/build-events';
+import {ChangedPrVisibilityEvent, CreatedBuildEvent} from '../../lib/upload-server/build-events';
 
 // Tests
-describe('BuildEvent', () => {
-  let evt: BuildEvent;
+describe('ChangedPrVisibilityEvent', () => {
+  let evt: ChangedPrVisibilityEvent;
 
-  beforeEach(() => evt = new BuildEvent('foo', 42, 'bar'));
+  beforeEach(() => evt = new ChangedPrVisibilityEvent(42, ['foo', 'bar'], true));
 
 
-  it('should have a \'type\' property', () => {
-    expect(evt.type).toBe('foo');
+  it('should have a static \'type\' property', () => {
+    expect(ChangedPrVisibilityEvent.type).toBe('pr.changedVisibility');
   });
 
 
@@ -18,8 +18,13 @@ describe('BuildEvent', () => {
   });
 
 
-  it('should have a \'sha\' property', () => {
-    expect(evt.sha).toBe('bar');
+  it('should have a \'shas\' property', () => {
+    expect(evt.shas).toEqual(['foo', 'bar']);
+  });
+
+
+  it('should have an \'isPublic\' property', () => {
+    expect(evt.isPublic).toBe(true);
   });
 
 });
@@ -28,7 +33,7 @@ describe('BuildEvent', () => {
 describe('CreatedBuildEvent', () => {
   let evt: CreatedBuildEvent;
 
-  beforeEach(() => evt = new CreatedBuildEvent(42, 'bar'));
+  beforeEach(() => evt = new CreatedBuildEvent(42, 'bar', true));
 
 
   it('should have a static \'type\' property', () => {
@@ -36,19 +41,6 @@ describe('CreatedBuildEvent', () => {
   });
 
 
-  it('should extend BuildEvent', () => {
-    expect(evt).toEqual(jasmine.any(CreatedBuildEvent));
-    expect(evt).toEqual(jasmine.any(BuildEvent));
-
-    expect(Object.getPrototypeOf(evt)).toBe(CreatedBuildEvent.prototype);
-  });
-
-
-  it('should automatically set the \'type\'', () => {
-    expect(evt.type).toBe(CreatedBuildEvent.type);
-  });
-
-
   it('should have a \'pr\' property', () => {
     expect(evt.pr).toBe(42);
   });
@@ -58,4 +50,9 @@ describe('CreatedBuildEvent', () => {
     expect(evt.sha).toBe('bar');
   });
 
+
+  it('should have an \'isPublic\' property', () => {
+    expect(evt.isPublic).toBe(true);
+  });
+
 });

aio/aio-builds-setup/dockerbuild/scripts-js/test/upload-server/build-verifier.spec.ts

@@ -1,8 +1,8 @@
 // Imports
 import * as jwt from 'jsonwebtoken';
-import {GithubPullRequests} from '../../lib/common/github-pull-requests';
+import {GithubPullRequests, PullRequest} from '../../lib/common/github-pull-requests';
 import {GithubTeams} from '../../lib/common/github-teams';
-import {BuildVerifier} from '../../lib/upload-server/build-verifier';
+import {BUILD_VERIFICATION_STATUS, BuildVerifier} from '../../lib/upload-server/build-verifier';
 import {expectToBeUploadError} from './helpers';
 
 // Tests
@@ -13,14 +13,15 @@ describe('BuildVerifier', () => {
     organization: 'organization',
     repoSlug: 'repo/slug',
     secret: 'secret',
+    trustedPrLabel: 'trusted: pr-label',
   };
   let bv: BuildVerifier;
 
   // Helpers
   const createBuildVerifier = (partialConfig: Partial<typeof defaultConfig> = {}) => {
-    const cfg = {...defaultConfig, ...partialConfig};
+    const cfg = {...defaultConfig, ...partialConfig} as typeof defaultConfig;
     return new BuildVerifier(cfg.secret, cfg.githubToken, cfg.repoSlug, cfg.organization,
-                             cfg.allowedTeamSlugs);
+                             cfg.allowedTeamSlugs, cfg.trustedPrLabel);
   };
 
   beforeEach(() => bv = createBuildVerifier());
@@ -28,12 +29,13 @@ describe('BuildVerifier', () => {
 
   describe('constructor()', () => {
 
-    ['secret', 'githubToken', 'repoSlug', 'organization', 'allowedTeamSlugs'].forEach(param => {
-      it(`should throw if '${param}' is missing or empty`, () => {
-        expect(() => createBuildVerifier({[param]: ''})).
-          toThrowError(`Missing or empty required parameter '${param}'!`);
+    ['secret', 'githubToken', 'repoSlug', 'organization', 'allowedTeamSlugs', 'trustedPrLabel'].
+      forEach(param => {
+        it(`should throw if '${param}' is missing or empty`, () => {
+          expect(() => createBuildVerifier({[param]: ''})).
+            toThrowError(`Missing or empty required parameter '${param}'!`);
+        });
       });
-    });
 
 
     it('should throw if \'allowedTeamSlugs\' is an empty array', () => {
@@ -44,6 +46,122 @@ describe('BuildVerifier', () => {
   });
 
 
+  describe('getPrIsTrusted()', () => {
+    const pr = 9;
+    let mockPrInfo: PullRequest;
+    let prsFetchSpy: jasmine.Spy;
+    let teamsIsMemberBySlugSpy: jasmine.Spy;
+
+    beforeEach(() => {
+      mockPrInfo = {
+        labels: [
+          {name: 'foo'},
+          {name: 'bar'},
+        ],
+        number: 9,
+        user: {login: 'username'},
+      };
+
+      prsFetchSpy = spyOn(GithubPullRequests.prototype, 'fetch').
+        and.returnValue(Promise.resolve(mockPrInfo));
+
+      teamsIsMemberBySlugSpy = spyOn(GithubTeams.prototype, 'isMemberBySlug').
+        and.returnValue(Promise.resolve(true));
+    });
+
+
+    it('should return a promise', done => {
+      const promise = bv.getPrIsTrusted(pr);
+      promise.then(done);   // Do not complete the test (and release the spies) synchronously
+                            // to avoid running the actual `GithubTeams#isMemberBySlug()`.
+
+      expect(promise).toEqual(jasmine.any(Promise));
+    });
+
+
+    it('should fetch the corresponding PR', done => {
+      bv.getPrIsTrusted(pr).then(() => {
+        expect(prsFetchSpy).toHaveBeenCalledWith(pr);
+        done();
+      });
+    });
+
+
+    it('should fail if fetching the PR errors', done => {
+      prsFetchSpy.and.callFake(() => Promise.reject('Test'));
+      bv.getPrIsTrusted(pr).catch(err => {
+        expect(err).toBe('Test');
+        done();
+      });
+    });
+
+
+    describe('when the PR has the "trusted PR" label', () => {
+
+      beforeEach(() => mockPrInfo.labels.push({name: 'trusted: pr-label'}));
+
+
+      it('should resolve to true', done => {
+        bv.getPrIsTrusted(pr).then(isTrusted => {
+          expect(isTrusted).toBe(true);
+          done();
+        });
+      });
+
+
+      it('should not try to verify the author\'s membership status', done => {
+        bv.getPrIsTrusted(pr).then(() => {
+          expect(teamsIsMemberBySlugSpy).not.toHaveBeenCalled();
+          done();
+        });
+      });
+
+    });
+
+
+    describe('when the PR does not have the "trusted PR" label', () => {
+
+      it('should verify the PR author\'s membership in the specified teams', done => {
+        bv.getPrIsTrusted(pr).then(() => {
+          expect(teamsIsMemberBySlugSpy).toHaveBeenCalledWith('username', ['team1', 'team2']);
+          done();
+        });
+      });
+
+
+      it('should fail if verifying membership errors', done => {
+        teamsIsMemberBySlugSpy.and.callFake(() => Promise.reject('Test'));
+        bv.getPrIsTrusted(pr).catch(err => {
+          expect(err).toBe('Test');
+          done();
+        });
+      });
+
+
+      it('should resolve to true if the PR\'s author is a member', done => {
+        teamsIsMemberBySlugSpy.and.returnValue(Promise.resolve(true));
+
+        bv.getPrIsTrusted(pr).then(isTrusted => {
+          expect(isTrusted).toBe(true);
+          done();
+        });
+      });
+
+
+      it('should resolve to false if the PR\'s author is not a member', done => {
+        teamsIsMemberBySlugSpy.and.returnValue(Promise.resolve(false));
+
+        bv.getPrIsTrusted(pr).then(isTrusted => {
+          expect(isTrusted).toBe(false);
+          done();
+        });
+      });
+
+    });
+
+  });
+
+
   describe('verify()', () => {
     const pr = 9;
     const defaultJwt = {
@@ -53,22 +171,21 @@ describe('BuildVerifier', () => {
       'pull-request': pr,
       'slug': defaultConfig.repoSlug,
     };
-    let bvGetPrAuthorTeamMembership: jasmine.Spy;
+    let bvGetPrIsTrusted: jasmine.Spy;
 
     // Heleprs
     const createAuthHeader = (partialJwt: Partial<typeof defaultJwt> = {}, secret: string = defaultConfig.secret) =>
       `Token ${jwt.sign({...defaultJwt, ...partialJwt}, secret)}`;
 
     beforeEach(() => {
-      bvGetPrAuthorTeamMembership = spyOn(bv, 'getPrAuthorTeamMembership').
-        and.returnValue(Promise.resolve({author: 'some-author', isMember: true}));
+      bvGetPrIsTrusted = spyOn(bv, 'getPrIsTrusted').and.returnValue(Promise.resolve(true));
     });
 
 
     it('should return a promise', done => {
       const promise = bv.verify(pr, createAuthHeader());
       promise.then(done);   // Do not complete the test (and release the spies) synchronously
-                            // to avoid running the actual `bvGetPrAuthorTeamMembership()`.
+                            // to avoid running the actual `bvGetPrIsTrusted()`.
 
       expect(promise).toEqual(jasmine.any(Promise));
     });
@@ -148,16 +265,16 @@ describe('BuildVerifier', () => {
     });
 
 
-    it('should call \'getPrAuthorTeamMembership()\' if the token is valid', done => {
+    it('should call \'getPrIsTrusted()\' if the token is valid', done => {
       bv.verify(pr, createAuthHeader()).then(() => {
-        expect(bvGetPrAuthorTeamMembership).toHaveBeenCalledWith(pr);
+        expect(bvGetPrIsTrusted).toHaveBeenCalledWith(pr);
         done();
       });
     });
 
 
-    it('should fail if \'getPrAuthorTeamMembership()\' rejects', done => {
-      bvGetPrAuthorTeamMembership.and.callFake(() => Promise.reject('Test'));
+    it('should fail if \'getPrIsTrusted()\' rejects', done => {
+      bvGetPrIsTrusted.and.callFake(() => Promise.reject('Test'));
       bv.verify(pr, createAuthHeader()).catch(err => {
         expectToBeUploadError(err, 403, `Error while verifying upload for PR ${pr}: Test`);
         done();
@@ -165,97 +282,22 @@ describe('BuildVerifier', () => {
     });
 
 
-    it('should fail if \'getPrAuthorTeamMembership()\' reports no membership', done => {
-      const errorMessage = `Error while verifying upload for PR ${pr}: User 'test' is not an active member of any of ` +
-                           'the following teams: team1, team2';
-
-      bvGetPrAuthorTeamMembership.and.returnValue(Promise.resolve({author: 'test', isMember: false}));
-      bv.verify(pr, createAuthHeader()).catch(err => {
-        expectToBeUploadError(err, 403, errorMessage);
+    it('should resolve to `verifiedNotTrusted` if \'getPrIsTrusted()\' returns false', done => {
+      bvGetPrIsTrusted.and.returnValue(Promise.resolve(false));
+      bv.verify(pr, createAuthHeader()).then(value => {
+        expect(value).toBe(BUILD_VERIFICATION_STATUS.verifiedNotTrusted);
         done();
       });
     });
 
 
-    it('should succeed if everything checks outs', done => {
-      bv.verify(pr, createAuthHeader()).then(done);
-    });
-
-  });
-
-
-  describe('getPrAuthorTeamMembership()', () => {
-    const pr = 9;
-    let prsFetchSpy: jasmine.Spy;
-    let teamsIsMemberBySlugSpy: jasmine.Spy;
-
-    beforeEach(() => {
-      prsFetchSpy = spyOn(GithubPullRequests.prototype, 'fetch').
-        and.returnValue(Promise.resolve({user: {login: 'username'}}));
-
-      teamsIsMemberBySlugSpy = spyOn(GithubTeams.prototype, 'isMemberBySlug').
-        and.returnValue(Promise.resolve(true));
-    });
-
-
-    it('should return a promise', done => {
-      const promise = bv.getPrAuthorTeamMembership(pr);
-      promise.then(done);   // Do not complete the test (and release the spies) synchronously
-                            // to avoid running the actual `GithubTeams#isMemberBySlug()`.
-
-      expect(promise).toEqual(jasmine.any(Promise));
-    });
-
-
-    it('should fetch the corresponding PR', done => {
-      bv.getPrAuthorTeamMembership(pr).then(() => {
-        expect(prsFetchSpy).toHaveBeenCalledWith(pr);
+    it('should resolve to `verifiedAndTrusted` if \'getPrIsTrusted()\' returns true', done => {
+      bv.verify(pr, createAuthHeader()).then(value => {
+        expect(value).toBe(BUILD_VERIFICATION_STATUS.verifiedAndTrusted);
         done();
       });
     });
 
-
-    it('should fail if fetching the PR errors', done => {
-      prsFetchSpy.and.callFake(() => Promise.reject('Test'));
-      bv.getPrAuthorTeamMembership(pr).catch(err => {
-        expect(err).toBe('Test');
-        done();
-      });
-    });
-
-
-    it('should verify the PR author\'s membership in the specified teams', done => {
-      bv.getPrAuthorTeamMembership(pr).then(() => {
-        expect(teamsIsMemberBySlugSpy).toHaveBeenCalledWith('username', ['team1', 'team2']);
-        done();
-      });
-    });
-
-
-    it('should fail if verifying membership errors', done => {
-      teamsIsMemberBySlugSpy.and.callFake(() => Promise.reject('Test'));
-      bv.getPrAuthorTeamMembership(pr).catch(err => {
-        expect(err).toBe('Test');
-        done();
-      });
-    });
-
-
-    it('should return the PR\'s author and whether they are members', done => {
-      teamsIsMemberBySlugSpy.and.returnValues(Promise.resolve(true), Promise.resolve(false));
-
-      Promise.all([
-        bv.getPrAuthorTeamMembership(pr).then(({author, isMember}) => {
-          expect(author).toBe('username');
-          expect(isMember).toBe(true);
-        }),
-        bv.getPrAuthorTeamMembership(pr).then(({author, isMember}) => {
-          expect(author).toBe('username');
-          expect(isMember).toBe(false);
-        }),
-      ]).then(done);
-    });
-
   });
 
 });

aio/aio-builds-setup/dockerbuild/scripts-js/test/upload-server/upload-server-factory.spec.ts

@@ -4,8 +4,8 @@ import * as http from 'http';
 import * as supertest from 'supertest';
 import {GithubPullRequests} from '../../lib/common/github-pull-requests';
 import {BuildCreator} from '../../lib/upload-server/build-creator';
-import {CreatedBuildEvent} from '../../lib/upload-server/build-events';
-import {BuildVerifier} from '../../lib/upload-server/build-verifier';
+import {ChangedPrVisibilityEvent, CreatedBuildEvent} from '../../lib/upload-server/build-events';
+import {BUILD_VERIFICATION_STATUS, BuildVerifier} from '../../lib/upload-server/build-verifier';
 import {uploadServerFactory as usf} from '../../lib/upload-server/upload-server-factory';
 
 // Tests
@@ -18,11 +18,12 @@ describe('uploadServerFactory', () => {
     githubToken: '12345',
     repoSlug: 'repo/slug',
     secret: 'secret',
+    trustedPrLabel: 'trusted: pr-label',
   };
 
   // Helpers
   const createUploadServer = (partialConfig: Partial<typeof defaultConfig> = {}) =>
-    usf.create({...defaultConfig, ...partialConfig});
+    usf.create({...defaultConfig, ...partialConfig} as typeof defaultConfig);
 
 
   describe('create()', () => {
@@ -75,6 +76,12 @@ describe('uploadServerFactory', () => {
     });
 
 
+    it('should throw if \'trustedPrLabel\' is missing or empty', () => {
+      expect(() => createUploadServer({trustedPrLabel: ''})).
+        toThrowError('Missing or empty required parameter \'trustedPrLabel\'!');
+    });
+
+
     it('should return an http.Server', () => {
       const httpCreateServerSpy = spyOn(http, 'createServer').and.callThrough();
       const server = createUploadServer();
@@ -109,7 +116,7 @@ describe('uploadServerFactory', () => {
 
     it('should log the server address info on \'listening\'', () => {
       const consoleInfoSpy = spyOn(console, 'info');
-      const server = createUploadServer('builds/dir');
+      const server = createUploadServer();
       server.address = () => ({address: 'foo', family: '', port: 1337});
 
       expect(consoleInfoSpy).not.toHaveBeenCalled();
@@ -141,26 +148,71 @@ describe('uploadServerFactory', () => {
     });
 
 
-    it('should post a comment on GitHub on \'build.created\'', () => {
-      const prsAddCommentSpy = spyOn(GithubPullRequests.prototype, 'addComment');
-      const commentBody = 'The angular.io preview for 1234567890 is available [here][1].\n\n' +
-                          '[1]: https://pr42-1234567890.domain.name/';
+    describe('on \'build.created\'', () => {
+      let prsAddCommentSpy: jasmine.Spy;
 
-      buildCreator.emit(CreatedBuildEvent.type, {pr: 42, sha: '1234567890'});
+      beforeEach(() => prsAddCommentSpy = spyOn(GithubPullRequests.prototype, 'addComment'));
+
+
+      it('should post a comment on GitHub for public previews', () => {
+        const commentBody = 'You can preview 1234567890 at https://pr42-1234567890.domain.name/.';
+
+        buildCreator.emit(CreatedBuildEvent.type, {pr: 42, sha: '1234567890', isPublic: true});
+        expect(prsAddCommentSpy).toHaveBeenCalledWith(42, commentBody);
+      });
+
+
+      it('should not post a comment on GitHub for non-public previews', () => {
+        buildCreator.emit(CreatedBuildEvent.type, {pr: 42, sha: '1234567890', isPublic: false});
+        expect(prsAddCommentSpy).not.toHaveBeenCalled();
+      });
+
+    });
+
+
+    describe('on \'pr.changedVisibility\'', () => {
+      let prsAddCommentSpy: jasmine.Spy;
+
+      beforeEach(() => prsAddCommentSpy = spyOn(GithubPullRequests.prototype, 'addComment'));
+
+
+      it('should post a comment on GitHub (for all SHAs) for PRs made public', () => {
+        const commentBody = 'You can preview 12345 at https://pr42-12345.domain.name/.\n' +
+                            'You can preview 67890 at https://pr42-67890.domain.name/.';
+
+        buildCreator.emit(ChangedPrVisibilityEvent.type, {pr: 42, shas: ['12345', '67890'], isPublic: true});
+        expect(prsAddCommentSpy).toHaveBeenCalledWith(42, commentBody);
+      });
+
+
+      it('should not post a comment on GitHub if no SHAs were affected', () => {
+        buildCreator.emit(ChangedPrVisibilityEvent.type, {pr: 42, shas: [], isPublic: true});
+        expect(prsAddCommentSpy).not.toHaveBeenCalled();
+      });
+
+
+      it('should not post a comment on GitHub for PRs made non-public', () => {
+        buildCreator.emit(ChangedPrVisibilityEvent.type, {pr: 42, shas: ['12345', '67890'], isPublic: false});
+        expect(prsAddCommentSpy).not.toHaveBeenCalled();
+      });
 
-      expect(prsAddCommentSpy).toHaveBeenCalledWith(42, commentBody);
     });
 
 
     it('should pass the correct \'githubToken\' and \'repoSlug\' to GithubPullRequests', () => {
       const prsAddCommentSpy = spyOn(GithubPullRequests.prototype, 'addComment');
 
-      buildCreator.emit(CreatedBuildEvent.type, {pr: 42, sha: '1234567890'});
-      const prs = prsAddCommentSpy.calls.mostRecent().object;
+      buildCreator.emit(CreatedBuildEvent.type, {pr: 42, sha: '1234567890', isPublic: true});
+      buildCreator.emit(ChangedPrVisibilityEvent.type, {pr: 42, shas: ['12345', '67890'], isPublic: true});
 
+      const allCalls = prsAddCommentSpy.calls.all();
+      const prs = allCalls[0].object;
+
+      expect(prsAddCommentSpy).toHaveBeenCalledTimes(2);
+      expect(prs).toBe(allCalls[1].object);
       expect(prs).toEqual(jasmine.any(GithubPullRequests));
-      expect((prs as any).repoSlug).toBe('repo/slug');
-      expect((prs as any).requestHeaders.Authorization).toContain('12345');
+      expect(prs.repoSlug).toBe('repo/slug');
+      expect(prs.requestHeaders.Authorization).toContain('12345');
     });
 
   });
@@ -184,6 +236,7 @@ describe('uploadServerFactory', () => {
         defaultConfig.repoSlug,
         defaultConfig.githubOrganization,
         defaultConfig.githubTeamSlugs,
+        defaultConfig.trustedPrLabel,
       );
       buildCreator = new BuildCreator(defaultConfig.buildsDir);
       agent = supertest.agent((usf as any).createMiddleware(buildVerifier, buildCreator));
@@ -199,17 +252,18 @@ describe('uploadServerFactory', () => {
       let buildCreatorCreateSpy: jasmine.Spy;
 
       beforeEach(() => {
-        buildVerifierVerifySpy = spyOn(buildVerifier, 'verify').and.returnValue(Promise.resolve());
+        const verStatus = BUILD_VERIFICATION_STATUS.verifiedAndTrusted;
+        buildVerifierVerifySpy = spyOn(buildVerifier, 'verify').and.returnValue(Promise.resolve(verStatus));
         buildCreatorCreateSpy = spyOn(buildCreator, 'create').and.returnValue(Promise.resolve());
       });
 
 
-      it('should respond with 405 for non-GET requests', done => {
+      it('should respond with 404 for non-GET requests', done => {
         verifyRequests([
-          agent.put(`/create-build/${pr}/${sha}`).expect(405),
-          agent.post(`/create-build/${pr}/${sha}`).expect(405),
-          agent.patch(`/create-build/${pr}/${sha}`).expect(405),
-          agent.delete(`/create-build/${pr}/${sha}`).expect(405),
+          agent.put(`/create-build/${pr}/${sha}`).expect(404),
+          agent.post(`/create-build/${pr}/${sha}`).expect(404),
+          agent.patch(`/create-build/${pr}/${sha}`).expect(404),
+          agent.delete(`/create-build/${pr}/${sha}`).expect(404),
         ], done);
       });
 
@@ -284,14 +338,17 @@ describe('uploadServerFactory', () => {
 
 
       it('should call \'BuildCreator#create()\' with the correct arguments', done => {
-        const req = agent.
-          get(`/create-build/${pr}/${sha}`).
-          set('AUTHORIZATION', 'foo').
-          set('X-FILE', 'bar');
+        buildVerifierVerifySpy.and.returnValues(
+            Promise.resolve(BUILD_VERIFICATION_STATUS.verifiedAndTrusted),
+            Promise.resolve(BUILD_VERIFICATION_STATUS.verifiedNotTrusted));
 
-        promisifyRequest(req).
-          then(() => expect(buildCreatorCreateSpy).toHaveBeenCalledWith(pr, sha, 'bar')).
-          then(done, done.fail);
+        const req1 = agent.get(`/create-build/${pr}/${sha}`).set('AUTHORIZATION', 'foo').set('X-FILE', 'bar');
+        const req2 = agent.get(`/create-build/${pr}/${sha}`).set('AUTHORIZATION', 'foo').set('X-FILE', 'bar');
+
+        Promise.all([
+          promisifyRequest(req1).then(() => expect(buildCreatorCreateSpy).toHaveBeenCalledWith(pr, sha, 'bar', true)),
+          promisifyRequest(req2).then(() => expect(buildCreatorCreateSpy).toHaveBeenCalledWith(pr, sha, 'bar', false)),
+        ]).then(done, done.fail);
       });
 
 
@@ -307,7 +364,7 @@ describe('uploadServerFactory', () => {
       });
 
 
-      it('should respond with 201 on successful upload', done => {
+      it('should respond with 201 on successful upload (for public builds)', done => {
         const req = agent.
           get(`/create-build/${pr}/${sha}`).
           set('AUTHORIZATION', 'foo').
@@ -318,6 +375,18 @@ describe('uploadServerFactory', () => {
       });
 
 
+      it('should respond with 202 on successful upload (for hidden builds)', done => {
+        buildVerifierVerifySpy.and.returnValue(Promise.resolve(BUILD_VERIFICATION_STATUS.verifiedNotTrusted));
+        const req = agent.
+          get(`/create-build/${pr}/${sha}`).
+          set('AUTHORIZATION', 'foo').
+          set('X-FILE', 'bar').
+          expect(202, http.STATUS_CODES[202]);
+
+        verifyRequests([req], done);
+      });
+
+
       it('should reject PRs with leading zeros', done => {
         verifyRequests([agent.get(`/create-build/0${pr}/${sha}`).expect(404)], done);
       });
@@ -349,12 +418,12 @@ describe('uploadServerFactory', () => {
       });
 
 
-      it('should respond with 405 for non-GET requests', done => {
+      it('should respond with 404 for non-GET requests', done => {
         verifyRequests([
-          agent.put('/health-check').expect(405),
-          agent.post('/health-check').expect(405),
-          agent.patch('/health-check').expect(405),
-          agent.delete('/health-check').expect(405),
+          agent.put('/health-check').expect(404),
+          agent.post('/health-check').expect(404),
+          agent.patch('/health-check').expect(404),
+          agent.delete('/health-check').expect(404),
         ], done);
       });
 
@@ -373,11 +442,141 @@ describe('uploadServerFactory', () => {
     });
 
 
-    describe('GET *', () => {
+    describe('POST /pr-updated', () => {
+      const pr = '9';
+      const url = '/pr-updated';
+      let bvGetPrIsTrustedSpy: jasmine.Spy;
+      let bcUpdatePrVisibilitySpy: jasmine.Spy;
+
+      // Helpers
+      const createRequest = (num: number, action?: string) =>
+        agent.post(url).send({number: num, action});
+
+      beforeEach(() => {
+        bvGetPrIsTrustedSpy = spyOn(buildVerifier, 'getPrIsTrusted');
+        bcUpdatePrVisibilitySpy = spyOn(buildCreator, 'updatePrVisibility');
+      });
+
+
+      it('should respond with 404 for non-POST requests', done => {
+        verifyRequests([
+          agent.get(url).expect(404),
+          agent.put(url).expect(404),
+          agent.patch(url).expect(404),
+          agent.delete(url).expect(404),
+        ], done);
+      });
+
+
+      it('should respond with 400 for requests without a payload', done => {
+        const responseBody = `Missing or empty 'number' field in request: POST ${url} {}`;
+
+        const request1 = agent.post(url);
+        const request2 = agent.post(url).send();
+
+        verifyRequests([
+          request1.expect(400, responseBody),
+          request2.expect(400, responseBody),
+        ], done);
+      });
+
+
+      it('should respond with 400 for requests without a \'number\' field', done => {
+        const responseBodyPrefix = `Missing or empty 'number' field in request: POST ${url}`;
+
+        const request1 = agent.post(url).send({});
+        const request2 = agent.post(url).send({number: null});
+
+        verifyRequests([
+          request1.expect(400, `${responseBodyPrefix} {}`),
+          request2.expect(400, `${responseBodyPrefix} {"number":null}`),
+        ], done);
+      });
+
+
+      it('should call \'BuildVerifier#gtPrIsTrusted()\' with the correct arguments', done => {
+        const req = createRequest(+pr);
+
+        promisifyRequest(req).
+          then(() => expect(bvGetPrIsTrustedSpy).toHaveBeenCalledWith(9)).
+          then(done, done.fail);
+      });
+
+
+      it('should propagate errors from BuildVerifier', done => {
+        bvGetPrIsTrustedSpy.and.callFake(() => Promise.reject('Test'));
+
+        const req = createRequest(+pr).expect(500, 'Test');
+
+        promisifyRequest(req).
+          then(() => {
+            expect(bvGetPrIsTrustedSpy).toHaveBeenCalledWith(9);
+            expect(bcUpdatePrVisibilitySpy).not.toHaveBeenCalled();
+          }).
+          then(done, done.fail);
+      });
+
+
+      it('should call \'BuildCreator#updatePrVisibility()\' with the correct arguments', done => {
+        bvGetPrIsTrustedSpy.and.callFake((pr2: number) => Promise.resolve(pr2 === 42));
+
+        const req1 = createRequest(24);
+        const req2 = createRequest(42);
+
+        Promise.all([
+          promisifyRequest(req1).then(() => expect(bcUpdatePrVisibilitySpy).toHaveBeenCalledWith('24', false)),
+          promisifyRequest(req2).then(() => expect(bcUpdatePrVisibilitySpy).toHaveBeenCalledWith('42', true)),
+        ]).then(done, done.fail);
+      });
+
+
+      it('should propagate errors from BuildCreator', done => {
+        bcUpdatePrVisibilitySpy.and.callFake(() => Promise.reject('Test'));
+
+        const req = createRequest(+pr).expect(500, 'Test');
+        verifyRequests([req], done);
+      });
+
+
+      describe('on success', () => {
+
+        it('should respond with 200 (action: undefined)', done => {
+          bvGetPrIsTrustedSpy.and.returnValues(Promise.resolve(true), Promise.resolve(false));
+
+          const reqs = [4, 2].map(num => createRequest(num).expect(200, http.STATUS_CODES[200]));
+          verifyRequests(reqs, done);
+        });
+
+
+        it('should respond with 200 (action: labeled)', done => {
+          bvGetPrIsTrustedSpy.and.returnValues(Promise.resolve(true), Promise.resolve(false));
+
+          const reqs = [4, 2].map(num => createRequest(num, 'labeled').expect(200, http.STATUS_CODES[200]));
+          verifyRequests(reqs, done);
+        });
+
+
+        it('should respond with 200 (action: unlabeled)', done => {
+          bvGetPrIsTrustedSpy.and.returnValues(Promise.resolve(true), Promise.resolve(false));
+
+          const reqs = [4, 2].map(num => createRequest(num, 'unlabeled').expect(200, http.STATUS_CODES[200]));
+          verifyRequests(reqs, done);
+        });
+
+
+        it('should respond with 200 (and do nothing) if \'action\' implies no visibility change', done => {
+          const promises = ['foo', 'notlabeled'].
+            map(action => createRequest(+pr, action).expect(200, http.STATUS_CODES[200])).
+            map(promisifyRequest);
+
+          Promise.all(promises).
+            then(() => {
+              expect(bvGetPrIsTrustedSpy).not.toHaveBeenCalled();
+              expect(bcUpdatePrVisibilitySpy).not.toHaveBeenCalled();
+            }).
+            then(done, done.fail);
+        });
 
-      it('should respond with 404', done => {
-        const responseBody = 'Unknown resource in request: GET /some/url';
-        verifyRequests([agent.get('/some/url').expect(404, responseBody)], done);
       });
 
     });
@@ -385,14 +584,15 @@ describe('uploadServerFactory', () => {
 
     describe('ALL *', () => {
 
-      it('should respond with 405', done => {
-        const responseFor = (method: string) => `Unsupported method in request: ${method.toUpperCase()} /some/url`;
+      it('should respond with 404', done => {
+        const responseFor = (method: string) => `Unknown resource in request: ${method.toUpperCase()} /some/url`;
 
         verifyRequests([
-          agent.put('/some/url').expect(405, responseFor('put')),
-          agent.post('/some/url').expect(405, responseFor('post')),
-          agent.patch('/some/url').expect(405, responseFor('patch')),
-          agent.delete('/some/url').expect(405, responseFor('delete')),
+          agent.get('/some/url').expect(404, responseFor('get')),
+          agent.put('/some/url').expect(404, responseFor('put')),
+          agent.post('/some/url').expect(404, responseFor('post')),
+          agent.patch('/some/url').expect(404, responseFor('patch')),
+          agent.delete('/some/url').expect(404, responseFor('delete')),
         ], done);
       });
 

aio/aio-builds-setup/dockerbuild/scripts-js/tsconfig.json

@@ -1,25 +1,66 @@
 {
   "compilerOptions": {
-    "alwaysStrict": true,
-    "forceConsistentCasingInFileNames": true,
-    "inlineSourceMap": true,
+    /* Basic Options */
+    "target": "es5",                             /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', or 'ESNEXT'. */
+    "module": "commonjs",                        /* Specify module code generation: 'none', commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */
     "lib": [
-      "es2016"
-    ],
-    "noImplicitAny": true,
-    "noImplicitReturns": true,
-    "noImplicitThis": true,
-    "noUnusedLocals": true,
-    "noUnusedParameters": true,
-    "outDir": "dist",
-    "pretty": true,
-    "rootDir": ".",
-    "skipLibCheck": true,
-    "strictNullChecks": true,
-    "target": "es5",
+      "es2015",
+      "es2016.array.include"
+    ],                                        /* Specify library files to be included in the compilation:  */
+    // "allowJs": true,                          /* Allow javascript files to be compiled. */
+    // "checkJs": true,                          /* Report errors in .js files. */
+    // "jsx": "preserve",                        /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
+    // "declaration": true,                      /* Generates corresponding '.d.ts' file. */
+    // "sourceMap": true,                        /* Generates corresponding '.map' file. */
+    // "outFile": "./",                          /* Concatenate and emit output to single file. */
+    "outDir": "dist",                         /* Redirect output structure to the directory. */
+    // "rootDir": "./",                          /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
+    // "removeComments": true,                   /* Do not emit comments to output. */
+    // "noEmit": true,                           /* Do not emit outputs. */
+    "importHelpers": true,                    /* Import emit helpers from 'tslib'. */
+    // "downlevelIteration": true,               /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */
+    // "isolatedModules": true,                  /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */
+
+    /* Strict Type-Checking Options */
+    "strict": true,                              /* Enable all strict type-checking options. */
+    // "noImplicitAny": true,                    /* Raise error on expressions and declarations with an implied 'any' type. */
+    // "strictNullChecks": true,                 /* Enable strict null checks. */
+    // "noImplicitThis": true,                   /* Raise error on 'this' expressions with an implied 'any' type. */
+    // "alwaysStrict": true,                     /* Parse in strict mode and emit "use strict" for each source file. */
+
+    /* Additional Checks */
+    "noUnusedLocals": true,                   /* Report errors on unused locals. */
+    "noUnusedParameters": true,               /* Report errors on unused parameters. */
+    "noImplicitReturns": true,                /* Report error when not all code paths in function return a value. */
+    // "noFallthroughCasesInSwitch": true,       /* Report errors for fallthrough cases in switch statement. */
+
+    /* Module Resolution Options */
+    // "moduleResolution": "node",               /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
+    // "baseUrl": "./",                          /* Base directory to resolve non-absolute module names. */
+    // "paths": {},                              /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */
+    // "rootDirs": [],                           /* List of root folders whose combined content represents the structure of the project at runtime. */
     "typeRoots": [
       "node_modules/@types"
-    ]
+    ],                                        /* List of folders to include type definitions from. */
+    // "types": [],                              /* Type declaration files to be included in compilation. */
+    // "allowSyntheticDefaultImports": true,     /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
+    // "preserveSymlinks": true,                 /* Do not resolve the real path of symlinks. */
+
+    /* Source Map Options */
+    // "sourceRoot": "./",                       /* Specify the location where debugger should locate TypeScript files instead of source locations. */
+    // "mapRoot": "./",                          /* Specify the location where debugger should locate map files instead of generated locations. */
+    "inlineSourceMap": true,                  /* Emit a single file with source maps instead of having a separate file. */
+    // "inlineSources": true,                    /* Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set. */
+
+    /* Experimental Options */
+    // "experimentalDecorators": true,           /* Enables experimental support for ES7 decorators. */
+    // "emitDecoratorMetadata": true,            /* Enables experimental support for emitting type metadata for decorators. */
+
+    /* Other */
+    "forceConsistentCasingInFileNames": true, /* Disallow inconsistently-cased references to the same file. */
+    "newLine": "LF",                          /* Use the specified end of line sequence to be used when emitting files: "crlf" (windows) or "lf" (unix). */
+    "pretty": true,                           /* Stylize errors and messages using color and context. */
+    "skipLibCheck": true                      /* Skip type checking of all declaration files (*.d.ts). */
   },
   "include": [
     "lib/**/*",

aio/aio-builds-setup/dockerbuild/scripts-js/tslint.json

@@ -1,15 +1,24 @@
 {
-  "extends": "tslint:recommended",
+  "defaultSeverity": "error",
+  "extends": [
+    "tslint:recommended"
+  ],
+  "jsRules": {},
   "rules": {
     "array-type": [true, "array"],
     "arrow-parens": [true, "ban-single-arg-parens"],
     "interface-name": [true, "never-prefix"],
     "max-classes-per-file": [true, 4],
     "no-consecutive-blank-lines": [true, 2],
-    "no-console": false,
+    "no-console": [false],
+    "no-focused-test": true,
     "no-namespace": [true, "allow-declarations"],
+    "no-skipped-test": true,
     "no-string-literal": false,
     "quotemark": [true, "single"],
     "variable-name": [true, "ban-keywords", "check-format", "allow-leading-underscore"]
-  }
+  },
+  "rulesDirectory": [
+    "node_modules/tslint-jasmine-noSkipOrFocus"
+  ]
 }

aio/aio-builds-setup/dockerbuild/scripts-sh/clean-up.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
-set -e -o pipefail
+set -eu -o pipefail
 
 # Set up env variables
 export AIO_GITHUB_TOKEN=$(head -c -1 /aio-secrets/GITHUB_TOKEN 2>/dev/null)

aio/aio-builds-setup/dockerbuild/scripts-sh/health-check.sh

@@ -1,5 +1,6 @@
 #!/bin/bash
-set +e -o pipefail
+# Using `+e` so that all checks are run and we get a complete report (even if some checks failed).
+set +e -u -o pipefail
 
 
 # Variables

aio/aio-builds-setup/dockerbuild/scripts-sh/init.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
-set -e -o pipefail
+set -eu -o pipefail
 
 exec >> /var/log/aio/init.log
 exec 2>&1

aio/aio-builds-setup/dockerbuild/scripts-sh/upload-server-prod.sh

@@ -1,15 +1,14 @@
 #!/bin/bash
-set -e -o pipefail
+set -eu -o pipefail
 
 # Set up env variables for production
-export AIO_GITHUB_TOKEN=$(head -c -1 /aio-secrets/GITHUB_TOKEN 2>/dev/null)
-export AIO_PREVIEW_DEPLOYMENT_TOKEN=$(head -c -1 /aio-secrets/PREVIEW_DEPLOYMENT_TOKEN 2>/dev/null)
+export AIO_GITHUB_TOKEN=$(head -c -1 /aio-secrets/GITHUB_TOKEN 2>/dev/null || echo "MISSING_GITHUB_TOKEN")
+export AIO_PREVIEW_DEPLOYMENT_TOKEN=$(head -c -1 /aio-secrets/PREVIEW_DEPLOYMENT_TOKEN 2>/dev/null || echo "MISSING_PREVIEW_DEPLOYMENT_TOKEN")
 
 # Start the upload-server instance
-# TODO(gkalpak): Ideally, the upload server should be run as a non-privileged user.
-#                (Currently, there doesn't seem to be a straight forward way.)
 action=$([ "$1" == "stop" ] && echo "stop" || echo "start")
 pm2 $action $AIO_SCRIPTS_JS_DIR/dist/lib/upload-server \
+  --uid $AIO_WWW_USER \
   --log /var/log/aio/upload-server-prod.log \
   --name aio-upload-server-prod \
   ${@:2}

aio/aio-builds-setup/dockerbuild/scripts-sh/upload-server-test.sh

@@ -1,13 +1,13 @@
 #!/bin/bash
-set -e -o pipefail
+set -eu -o pipefail
 
 # Set up env variables for testing
 export AIO_BUILDS_DIR=$TEST_AIO_BUILDS_DIR
 export AIO_DOMAIN_NAME=$TEST_AIO_DOMAIN_NAME
 export AIO_GITHUB_ORGANIZATION=$TEST_AIO_GITHUB_ORGANIZATION
 export AIO_GITHUB_TEAM_SLUGS=$TEST_AIO_GITHUB_TEAM_SLUGS
-export AIO_PREVIEW_DEPLOYMENT_TOKEN=$TEST_AIO_PREVIEW_DEPLOYMENT_TOKEN
 export AIO_REPO_SLUG=$TEST_AIO_REPO_SLUG
+export AIO_TRUSTED_PR_LABEL=$TEST_AIO_TRUSTED_PR_LABEL
 export AIO_UPLOAD_HOSTNAME=$TEST_AIO_UPLOAD_HOSTNAME
 export AIO_UPLOAD_PORT=$TEST_AIO_UPLOAD_PORT
 
@@ -15,13 +15,12 @@ export AIO_GITHUB_TOKEN=$(head -c -1 /aio-secrets/TEST_GITHUB_TOKEN 2>/dev/null
 export AIO_PREVIEW_DEPLOYMENT_TOKEN=$(head -c -1 /aio-secrets/TEST_PREVIEW_DEPLOYMENT_TOKEN 2>/dev/null || echo "TEST_PREVIEW_DEPLOYMENT_TOKEN")
 
 # Start the upload-server instance
-# TODO(gkalpak): Ideally, the upload server should be run as a non-privileged user.
-#                (Currently, there doesn't seem to be a straight forward way.)
 appName=aio-upload-server-test
 if [[ "$1" == "stop" ]]; then
   pm2 delete $appName
 else
-  pm2 start $AIO_SCRIPTS_JS_DIR/dist/lib/upload-server/index-test.js \
+  pm2 start $AIO_SCRIPTS_JS_DIR/dist/lib/verify-setup/start-test-upload-server.js \
+    --uid $AIO_WWW_USER \
     --log /var/log/aio/upload-server-test.log \
     --name $appName \
     --no-autorestart \

aio/aio-builds-setup/dockerbuild/scripts-sh/verify-setup.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
-set -e -o pipefail
+set -eu -o pipefail
 
 logFile=/var/log/aio/verify-setup.log
 uploadServerLogFile=/var/log/aio/upload-server-verify-setup.log

aio/aio-builds-setup/docs/_TOC.md

@@ -4,7 +4,8 @@
 ## Overview
 - [General overview](overview--general.md)
 - [Security model](overview--security-model.md)
-- [Available Commands](overview--scripts-and-commands.md)
+- [Available scripts and commands](overview--scripts-and-commands.md)
+- [HTTP status codes](overview--http-status-codes.md)
 
 
 ## Setting up the VM

aio/aio-builds-setup/docs/image-config--environment-variables.md

@@ -17,7 +17,7 @@ you don't need to specify values for those.
   The domain name of the server.
 
 - `AIO_GITHUB_ORGANIZATION`:
-  The GitHub organization whose teams arew whitelisted for accepting uploads.
+  The GitHub organization whose teams are whitelisted for accepting uploads.
   See also `AIO_GITHUB_TEAM_SLUGS`.
 
 - `AIO_GITHUB_TEAM_SLUGS`:
@@ -39,6 +39,11 @@ you don't need to specify values for those.
 - `AIO_REPO_SLUG`:
   The repository slug (in the form `<user>/<repo>`) for which PRs will be uploaded.
 
+- `AIO_TRUSTED_PR_LABEL`:
+  The PR whose presence indicates the PR has been manually verified and is allowed to have its
+  build artifacts publicly served. This is useful for enabling previews for any PR (not only those
+  from trusted authors).
+
 - `AIO_UPLOAD_HOSTNAME`:
   The internal hostname for accessing the Node.js upload-server. This is used by nginx for
   delegating upload requests and also for performing a periodic health-check.

aio/aio-builds-setup/docs/misc--integrate-with-ci.md

@@ -3,10 +3,9 @@
 
 TODO (gkalpak): Add docs. Mention:
 - Travis' JWT addon (+ limitations).
-  Relevant files: `.travis.yml`
+  Relevant files: `.travis.yml`, `scripts/ci/env.sh`
 - Testing on CI.
-  Relevant files: `ci/test-aio.sh`, `aio/aio-builds-setup/scripts/test.sh`
-- Preverifying on CI.
-  Relevant files: `ci/deploy.sh`, `aio/aio-builds-setup/scripts/travis-preverify-pr.sh`
+  Relevant files: `scripts/ci/test-aio.sh`, `aio/aio-builds-setup/scripts/test.sh`
 - Deploying from CI.
-  Relevant files: `ci/deploy.sh`, `aio/scripts/deploy-preview.sh`
+  Relevant files: `scripts/ci/deploy.sh`, `aio/scripts/deploy-preview.sh`,
+                  `aio/scripts/deploy-to-firebase.sh`

aio/aio-builds-setup/docs/overview--general.md

@@ -33,36 +33,69 @@ container:
 
 
 ### On CI (Travis)
-- Build job completes successfully (i.e. build succeeds and tests pass).
+- Build job completes successfully.
 - The CI script checks whether the build job was initiated by a PR against the angular/angular
   master branch.
-- The CI script checks whether the PR has touched any files inside the angular.io project directory
-  (currently `aio/`).
-- The CI script checks whether the author of the PR is a member of one of the whitelisted GitHub
-  teams (and therefore allowed to upload).
+- The CI script checks whether the PR has touched any files that might affect the angular.io app
+  (currently the `aio/` or `packages/` directories, ignoring spec files).
+- Optionally, the CI script can check whether the PR can be automatically verified (i.e. if the
+  author of the PR is a member of one of the whitelisted GitHub teams or the PR has the specified
+  "trusted PR" label).
   **Note:**
   For security reasons, the same checks will be performed on the server as well. This is an optional
-  step with the purpose of:
-  1. Avoiding the wasted overhead associated with uploads that are going to be rejected (e.g.
-     building the artifacts, sending them to the server, running checks on the server, etc).
-  2. Avoiding failing the build (due to an error response from the server) or requiring additional
-     logic for detecting the reasons of the failure.
-- The CI script gzip and upload the build artifacts to the server.
+  step that can be used in case one wants to apply special logic depending on the outcome of the
+  pre-verification. For example:
+  1. One might want to deploy automatically verified PRs only. In that case, the pre-verification
+     helps avoid the wasted overhead associated with uploads that are going to be rejected (e.g.
+     building the artifacts, sending them to the server, running checks on the server, detecting the
+     reasons of deployment failure and whether to fail the build, etc).
+  2. One might want to apply additional logic (e.g. different tests) depending on whether the PR is
+     automatically verified or not).
+- The CI script gzips and uploads the build artifacts to the server.
 
 More info on how to set things up on CI can be found [here](misc--integrate-with-ci.md).
 
 
 ### Uploading build artifacts
-- nginx receives upload request.
+- nginx receives the upload request.
 - nginx checks that the uploaded gzip archive does not exceed the specified max file size, stores it
   in a temporary location and passes the filepath to the Node.js upload-server.
-- The upload-server verifies that the uploaded file is not trying to overwrite an existing build,
-  and runs several checks to determine whether the request should be accepted (more details can be
+- The upload-server runs several checks to determine whether the request should be accepted and
+  whether it should be publicly accessible or stored for later verification (more details can be
   found [here](overview--security-model.md)).
-- The upload-server deploys the artifacts to a sub-directory named after the PR number and SHA:
-  `<PR>/<SHA>/`
-- The upload-server posts a comment on the corresponding PR on GitHub mentioning the SHA and the
-  the link where the preview can be found.
+- The upload-server changes the "visibility" of the associated PR, if necessary. For example, if
+  builds for the same PR had been previously deployed as non-public and the current build has been
+  automatically verified, all previous builds are made public as well.
+  If the PR transitions from "non-public" to "public", the upload-server posts a comment on the
+  corresponding PR on GitHub mentioning the SHAs and the links where the previews can be found.
+- The upload-server verifies that the uploaded file is not trying to overwrite an existing build.
+- The upload-server deploys the artifacts to a sub-directory named after the PR number and the first
+  few characters of the SHA: `<PR>/<SHA>/`
+  (Non-publicly accessible PRs will be stored in a different location, but again derived from the PR
+  number and SHA.)
+- If the PR is publicly accessible, the upload-server posts a comment on the corresponding PR on
+  GitHub mentioning the SHA and the link where the preview can be found.
+
+More info on the possible HTTP status codes and their meaning can be found
+[here](overview--http-status-codes.md).
+
+
+### Updating PR visibility
+- nginx receives a natification that a PR has been updated and passes it through to the
+  upload-server. This could, for example, be sent by a GitHub webhook every time a PR's labels
+  change.
+  E.g.: `ngbuilds.io/pr-updated` (payload: `{"number":<PR>,"action":"labeled"}`)
+- The request contains the PR number (as `number`) and optionally the action that triggered the
+  request (as `action`) in the payload.
+- The upload-server verifies the payload and determines whether the `action` (if specified) could
+  have led to PR visibility changes. Only requests that omit the `action` field altogether or
+  specify an action that can affect visibility are further processed.
+  (Currently, the only actions that are considered capable of affecting visibility are `labeled` and
+  `unlabeled`.)
+- The upload-server re-checks and if necessary updates the PR's visibility.
+
+More info on the possible HTTP status codes and their meaning can be found
+[here](overview--http-status-codes.md).
 
 
 ### Serving build artifacts
@@ -71,6 +104,9 @@ More info on how to set things up on CI can be found [here](misc--integrate-with
 - nginx maps the subdomain to the correct sub-directory and serves the resource.
   E.g.: `/<PR>/<SHA>/path/to/resource`
 
+More info on the possible HTTP status codes and their meaning can be found
+[here](overview--http-status-codes.md).
+
 
 ### Removing obsolete artifacts
 In order to avoid flooding the disk with unnecessary build artifacts, there is a cronjob that runs a

aio/aio-builds-setup/docs/overview--http-status-codes.md

@@ -0,0 +1,85 @@
+# Overview - HTTP Status Codes
+
+
+This is a list of all the possible HTTP status codes returned by the nginx anf upload servers, along
+with a bried explanation of what they mean:
+
+
+## `http://*.ngbuilds.io/*`
+
+- **307 (Temporary Redirect)**:
+  All non-HTTPS requests. 308 (Permanent Redirect) would be more appropriate, but is not supported
+  by all agents (e.g. cURL).
+
+
+## `https://pr<pr>-<sha>.ngbuilds.io/*`
+
+- **200 (OK)**:
+  File was found or URL was rewritten to `/index.html` (i.e. all paths that have no `.` in final
+  segment).
+
+- **403 (Forbidden)**:
+  Trying to access a sub-directory.
+
+- **404 (Not Found)**:
+  File not found.
+
+
+## `https://ngbuilds.io/create-build/<pr>/<sha>`
+
+- **201 (Created)**:
+  Build deployed successfully and is publicly available.
+
+- **202 (Accepted)**:
+  Build not automatically verifiable. Stored for later deployment (after re-verification).
+
+- **400 (Bad Request)**:
+  No payload.
+
+- **401 (Unauthorized)**:
+  No `AUTHORIZATION` header.
+
+- **403 (Forbidden)**:
+  Unable to verify build (e.g. invalid JWT token, or unable to talk to 3rd-party APIs, etc).
+
+- **405 (Method Not Allowed)**:
+  Request method other than POST.
+
+- **409 (Conflict)**:
+  Request to overwrite existing (public or non-public) directory (e.g. deploy existing build or
+  change PR visibility when the destination directory does already exist).
+
+- **413 (Payload Too Large)**:
+  Payload larger than size specified in `AIO_UPLOAD_MAX_SIZE`.
+
+
+## `https://ngbuilds.io/health-check`
+
+- **200 (OK)**:
+  The server is healthy (i.e. up and running and processing requests).
+
+
+## `https://ngbuilds.io/pr-updated`
+
+- **200 (OK)**:
+  Request processed successfully. Processing may or may not have resulted in further actions.
+
+- **400 (Bad Request)**:
+  No payload or no `number` field in payload.
+
+- **405 (Method Not Allowed)**:
+  Request method other than POST.
+
+- **409 (Conflict)**:
+  Request to overwrite existing (public or non-public) directory (i.e. directories for both
+  visibilities exist).
+  (Normally, this should not happen.)
+
+
+## `https://*.ngbuilds.io/*`
+
+- **404 (Not Found)**:
+  Request not matched by the above rules.
+
+- **500 (Internal Server Error)**:
+  Error while processing a request matched by the above rules.

aio/aio-builds-setup/docs/overview--scripts-and-commands.md

@@ -12,20 +12,15 @@ available:
   Can be used for creating a preconfigured docker image.
   See [here](vm-setup--create-docker-image.md) for more info.
 
-- `test.sh`
+- `test.sh`:
   Can be used for running the tests for `<aio-builds-setup-dir>/dockerbuild/scripts-js/`. This is
   useful for CI integration. See [here](misc--integrate-with-ci.md) for more info.
 
-- `travis-preverify-pr.sh`
-  Can be used for "preverifying" a PR before uploading the artifacts to the server. It checks that
-  the author of the PR is a member of one of the specified GitHub teams and therefore allowed to
-  upload build artifacts. This is useful for CI integration. See [here](misc--integrate-with-ci.md)
-  for more info.
-
-- `update-preview-server.sh`
+- `update-preview-server.sh`:
   Can be used for updating the docker container (and image) based on the latest changes checked out
   from a git repository. See [here](vm-setup--update-docker-container.md) for more info.
 
+
 ## Commands
 The following commands are available globally from inside the docker container. They are either used
 by the container to perform its various operations or can be used ad-hoc, mainly for testing

aio/aio-builds-setup/docs/overview--security-model.md

@@ -41,12 +41,13 @@ part of the CI setup and serving them publicly.
 The implemented approach can be broken up to the following sub-tasks:
 
 1. Verify which PR the uploaded artifacts correspond to.
-2. Determine the author of the PR.
-3. Check whether the PR author is a member of some whitelisted GitHub team.
-4. Deploy the artifacts to the corresponding PR's directory.
-5. Prevent overwriting previously deployed artifacts (which ensures that the guarantees established
+2. Fetch the PR's metadata, including author and labels.
+3. Check whether the PR can be automatically verified as "trusted" (based on its author or labels).
+4. If necessary, update the corresponding PR's verification status.
+5. Deploy the artifacts to the corresponding PR's directory.
+6. Prevent overwriting previously deployed artifacts (which ensures that the guarantees established
    during deployment will remain valid until the artifacts are removed).
-6. Prevent uploaded files from accessing anything outside their directory.
+7. Prevent uploaded files from accessing anything outside their directory.
 
 
 ### Implementation details
@@ -65,35 +66,51 @@ This section describes how each of the aforementioned sub-tasks is accomplished:
    _There are currently certain limitation in the implementation of the JWT addon._
    _See the next section for more details._
 
-2. **Determine the author of the PR.**
+2. **Fetch the PR's metadata, including author and labels**.
 
-   Once we have securely associated the uploaded artifaacts to a PR, we retrieve the PR's metadata -
-   including the author's username - using the [GitHub API](https://developer.github.com/v3/).
+   Once we have securely associated the uploaded artifacts to a PR, we retrieve the PR's metadata -
+   including the author's username and the labels - using the
+   [GitHub API](https://developer.github.com/v3/).
    To avoid rate-limit restrictions, we use a Personal Access Token (issued by
    [@mary-poppins](https://github.com/mary-poppins)).
 
-3. **Check whether the PR author is a member of some whitelisted GitHub team.**
+3. **Check whether the PR can be automatically verified as "trusted"**.
 
-   Again using the GitHub API, we can verify the author's membership in one of the
-   whitelisted/trusted GitHub teams. For this operation, we need a PErsonal Access Token with the
-   `read:org` scope issued by a user that can "see" the specified GitHub organization.
-   Here too, we use token by @mary-poppins.
+   "Trusted" means that we are confident that the build artifacts are suitable for being deployed
+   and publicly accessible on the preview server. There are two ways to check that:
+   1. We can verify that the PR has a pre-determined label, which marks it as "safe for preview".
+      Such a label can only have been added by a maintainer (with the necessary rights) and
+      designates that they have manually verified the PR contents.
+   2. We can verify (again using the GitHub API) the author's membership in one of the
+      whitelisted/trusted GitHub teams. For this operation, we need a Personal Access Token with the
+      `read:org` scope issued by a user that can "see" the specified GitHub organization.
+      Here too, we use the token by @mary-poppins.
 
-4. **Deploy the artifacts to the corresponding PR's directory.**
+4. **If necessary update the corresponding PR's verification status**.
 
-   With the preceeding steps, we have verified that the uploaded artifacts have been uploaded by
-   Travis and correspond to a PR whose author is a member of a trusted team. Essentially, as long as
-   sub-tasks 1, 2 and 3 can be securely accomplished, it is possible to "project" the trust we have
-   in a team's members through the PR and Travis to the build artifacts.
+   Once we have determined whether the PR is considered "trusted", we update its "visibility" (i.e.
+   whether it is publicly accessible or not), based on the new verification status. For example, if
+   a PR was initially considered "not trusted" but the check triggered by a new build determined
+   otherwise, the PR (and all the previously uploaded previews) are made public. It works the same
+   way if a PR has gone from "trusted" to "not trusted".
 
-5. **Prevent overwriting previously deployed artifacts**.
+5. **Deploy the artifacts to the corresponding PR's directory.**
 
-   In order to enforce this restriction (and ensure that the deployed artifacts validity is
+   With the preceding steps, we have verified that the uploaded artifacts have been uploaded by
+   Travis. Additionally, we have determined whether the PR can be trusted to have its previews
+   publicly accessible or whether further verification is necessary. The artifacts will be stored to
+   the PR's directory, but will not be publicly accessible unless the PR has been verified.
+   Essentially, as long as sub-tasks 1, 2 and 3 can be securely accomplished, it is possible to
+   "project" the trust we have in a team's members through the PR and Travis to the build artifacts.
+
+6. **Prevent overwriting previously deployed artifacts**.
+
+   In order to enforce this restriction (and ensure that the deployed artifacts' validity is
    preserved throughout their "lifetime"), the server that handles the upload (currently a Node.js
    Express server) rejects uploads that target an existing directory.
    _Note: A PR can contain multiple uploads; one for each SHA that was built on Travis._
 
-6. **Prevent uploaded files from accessing anything outside their directory.**
+7. **Prevent uploaded files from accessing anything outside their directory.**
 
    Nginx (which is used to serve the uploaded artifacts) has been configured to not follow symlinks
    outside of the directory where the build artifacts are stored.
@@ -104,6 +121,11 @@ This section describes how each of the aforementioned sub-tasks is accomplished:
 - Each trusted PR author has full control over the content that is uploaded for their PRs. Part of
   the security model relies on the trustworthiness of these authors.
 
+- Adding the specified label on a PR and marking it as trusted, gives the author full control over
+  the content that is uploaded for the specific PR (e.g. by pushing more commits to it). The user
+  adding the label is responsible for ensuring that this control is not abused and that the PR is
+  either closed (one way of another) or the access is revoked.
+
 - If anyone gets access to the `PREVIEW_DEPLOYMENT_TOKEN` (a.k.a. `NGBUILDS_IO_KEY` on
   angular/angular) variable generated for each Travis job, they will be able to impersonate the
   corresponding PR's author on the preview server for as long as the token is valid (currently 90

aio/aio-builds-setup/docs/vm-setup--create-docker-image.md

@@ -25,7 +25,7 @@ The following commands would create a docker image from GitHub repo `foo/bar` to
     --build-arg AIO_REPO_SLUG=foo/bar \
     --build-arg AIO_DOMAIN_NAME=foobar-builds.io \
     --build-arg AIO_GITHUB_ORGANIZATION=foo \
-    --build-arg AIO_GITHUB_TEMA_SLUGS=bar-core,bar-docs-authors
+    --build-arg AIO_GITHUB_TEAM_SLUGS=bar-core,bar-docs-authors
   ```
 
 A full list of the available environment variables can be found

aio/aio-builds-setup/docs/vm-setup--update-docker-container.md

@@ -9,7 +9,7 @@ VM host to update the preview server based on changes in the source code.
 The script will pull the latest changes from the origin's master branch and examine if there have
 been any changes in files inside the preview server source code directory (see below). If there are,
 it will create a new image and verify that is works as expected. Finally, it will stop and remove
-the old docker container and image, create and new container based on the new image and start it.
+the old docker container and image, create a new container based on the new image and start it.
 
 The script assumes that the preview server source code is in the repository's
 `aio/aio-builds-setup/` directory and expects the following inputs:

aio/aio-builds-setup/scripts/create-image.sh

@@ -5,6 +5,14 @@ set -eux -o pipefail
 source "`dirname $0`/_env.sh"
 readonly defaultImageNameAndTag="aio-builds:latest"
 
+# Build `scripts-js/`
+# (Necessary, because only `scripts-js/dist/` is copied to the docker image.)
+(
+  cd "$SCRIPTS_JS_DIR"
+  yarn install --freeze-lockfile --non-interactive
+  yarn build
+)
+
 # Create docker image
 readonly nameAndOptionalTag=${1:-$defaultImageNameAndTag}
 sudo docker build --tag $nameAndOptionalTag ${@:2} $DOCKERBUILD_DIR

aio/aio-builds-setup/scripts/test.sh

@@ -7,6 +7,6 @@ source "`dirname $0`/_env.sh"
 # Test `scripts-js/`
 (
   cd "$SCRIPTS_JS_DIR"
-  yarn install
+  yarn install --freeze-lockfile --non-interactive
   yarn test
 )

aio/aio-builds-setup/scripts/travis-preverify-pr.sh

@@ -1,20 +0,0 @@
-#!/bin/bash
-set -eux -o pipefail
-
-# Set up env
-source "`dirname $0`/_env.sh"
-
-# Build `scripts-js/`
-(
-  cd "$SCRIPTS_JS_DIR"
-  yarn install
-  yarn build
-)
-
-# Preverify PR
-AIO_GITHUB_ORGANIZATION="angular" \
-AIO_GITHUB_TEAM_SLUGS="angular-core,aio-contributors" \
-AIO_GITHUB_TOKEN=$(echo ${GITHUB_TEAM_MEMBERSHIP_CHECK_KEY} | rev) \
-AIO_REPO_SLUG=$TRAVIS_REPO_SLUG \
-AIO_PREVERIFY_PR=$TRAVIS_PULL_REQUEST \
-node "$SCRIPTS_JS_DIR/dist/lib/upload-server/index-preverify-pr"

aio/content/examples/.gitignore

@@ -43,23 +43,18 @@ dist/
 **/app/**/*.ajs.js
 
 # aot
-**/*.ngfactory.ts
-**/*.ngsummary.json
-**/*.ngsummary.ts
-**/*.shim.ngstyle.ts
-**/*.metadata.json
-!aot/bs-config.json
-!aot/index.html
+*/aot/**/*
+!*/aot/bs-config.json
+!*/aot/index.html
 !rollup-config.js
 
+# i18n
+!i18n/src/systemjs-text-plugin.js
+
 # testing
 !testing/src/browser-test-shim.js
 !testing/karma*.js
 
-# TS to JS
-!ts-to-js/js*/**/*.js
-ts-to-js/js*/**/system*.js
-
 # webpack
 !webpack/**/config/*.js
 !webpack/**/*webpack*.js

aio/content/examples/ajs-quick-reference/src/app/app.component.html

@@ -14,13 +14,13 @@
 <h1>Example Snippets</h1>
 
 <!-- #docregion ngClass -->
-<div [ngClass]="{active: isActive}">
+<div [ngClass]="{'active': isActive}">
 <!-- #enddocregion ngClass -->
   [ngClass] active
 </div>
 <!-- #docregion ngClass -->
-<div [ngClass]="{active: isActive,
-                 shazam: isImportant}">
+<div [ngClass]="{'active': isActive,
+                 'shazam': isImportant}">
 <!-- #enddocregion ngClass -->
   [ngClass] active and boldly important
 </div>
@@ -57,7 +57,7 @@
 
 <p></p>
 <!-- #docregion ngStyle -->
-<div [ngStyle]="{color: colorPreference}">
+<div [ngStyle]="{'color': colorPreference}">
 <!-- #enddocregion ngStyle -->
   color preference #1
 </div>

aio/content/examples/animations/.gitignore

@@ -1 +0,0 @@
-**/*.js

aio/content/examples/animations/e2e-spec.ts

@@ -335,17 +335,17 @@ describe('Animation Tests', () => {
     });
   }
 
-  function getBoundingClientWidth(el: ElementFinder): promise.Promise<number> {
+  function getBoundingClientWidth(el: ElementFinder) {
     return browser.executeScript(
       'return arguments[0].getBoundingClientRect().width',
       el.getWebElement()
-    );
+    ) as PromiseLike<number>;
   }
 
-  function getOffsetWidth(el: ElementFinder): promise.Promise<number> {
+  function getOffsetWidth(el: ElementFinder) {
     return browser.executeScript(
       'return arguments[0].offsetWidth',
       el.getWebElement()
-    );
+    ) as PromiseLike<number>;
   }
 });

aio/content/examples/animations/src/app/app.module.ts

@@ -1,5 +1,6 @@
-// #docregion animations-module
+// #docplaster
 import { NgModule } from '@angular/core';
+// #docregion animations-module
 import { BrowserModule } from '@angular/platform-browser';
 import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
 // #enddocregion animations-module
@@ -15,11 +16,12 @@ import { HeroListAutoComponent } from './hero-list-auto.component';
 import { HeroListGroupsComponent } from './hero-list-groups.component';
 import { HeroListMultistepComponent } from './hero-list-multistep.component';
 import { HeroListTimingsComponent } from './hero-list-timings.component';
+// #docregion animations-module
 
-// #docregion animation-module
 @NgModule({
   imports: [ BrowserModule, BrowserAnimationsModule ],
-  // #enddocregion animation-module
+  // ... more stuff ...
+// #enddocregion animations-module
   declarations: [
     HeroTeamBuilderComponent,
     HeroListBasicComponent,
@@ -34,5 +36,8 @@ import { HeroListTimingsComponent } from './hero-list-timings.component';
     HeroListGroupsComponent
   ],
   bootstrap: [ HeroTeamBuilderComponent ]
+// #docregion animations-module
 })
 export class AppModule { }
+// #enddocregion animations-module
+

aio/content/examples/animations/src/app/hero-list-auto.component.ts

@@ -10,7 +10,7 @@ import {
   transition
 } from '@angular/animations';
 
-import { Heroes } from './hero.service';
+import { Hero } from './hero.service';
 
 @Component({
   selector: 'hero-list-auto',
@@ -43,5 +43,5 @@ import { Heroes } from './hero.service';
   // #enddocregion animationdef
 })
 export class HeroListAutoComponent {
-  @Input() heroes: Heroes;
+   @Input() heroes: Hero[];
 }

aio/content/examples/animations/src/app/hero-list-basic.component.ts

@@ -14,7 +14,7 @@ import {
 } from '@angular/animations';
 // #enddocregion imports
 
-import { Heroes } from './hero.service';
+import { Hero } from './hero.service';
 
 @Component({
   selector: 'hero-list-basic',
@@ -66,5 +66,5 @@ import { Heroes } from './hero.service';
   // #enddocregion animationdef
 })
 export class HeroListBasicComponent {
-  @Input() heroes: Heroes;
+   @Input() heroes: Hero[];
 }

aio/content/examples/animations/src/app/hero-list-combined-transitions.component.ts

@@ -13,7 +13,7 @@ import {
 } from '@angular/animations';
 // #enddocregion imports
 
-import { Heroes } from './hero.service';
+import { Hero } from './hero.service';
 
 @Component({
  selector: 'hero-list-combined-transitions',
@@ -55,5 +55,5 @@ import { Heroes } from './hero.service';
  // #enddocregion animationdef
 })
 export class HeroListCombinedTransitionsComponent {
- @Input() heroes: Heroes;
+  @Input() heroes: Hero[];
 }

aio/content/examples/animations/src/app/hero-list-enter-leave-states.component.ts

@@ -10,7 +10,7 @@ import {
   transition
 } from '@angular/animations';
 
-import { Heroes } from './hero.service';
+import { Hero } from './hero.service';
 
 @Component({
   selector: 'hero-list-enter-leave-states',
@@ -59,5 +59,5 @@ import { Heroes } from './hero.service';
   // #enddocregion animationdef
 })
 export class HeroListEnterLeaveStatesComponent {
-  @Input() heroes: Heroes;
+   @Input() heroes: Hero[];
 }

aio/content/examples/animations/src/app/hero-list-enter-leave.component.ts

@@ -10,7 +10,7 @@ import {
   transition
 } from '@angular/animations';
 
-import { Heroes } from './hero.service';
+import { Hero } from './hero.service';
 
 @Component({
   selector: 'hero-list-enter-leave',
@@ -47,5 +47,5 @@ import { Heroes } from './hero.service';
   // #enddocregion animationdef
 })
 export class HeroListEnterLeaveComponent {
-  @Input() heroes: Heroes;
+   @Input() heroes: Hero[];
 }

aio/content/examples/animations/src/app/hero-list-groups.component.ts

@@ -11,7 +11,7 @@ import {
   group
 } from '@angular/animations';
 
-import { Heroes } from './hero.service';
+import { Hero } from './hero.service';
 
 @Component({
   selector: 'hero-list-groups',
@@ -76,5 +76,5 @@ import { Heroes } from './hero.service';
   // #enddocregion animationdef
 })
 export class HeroListGroupsComponent {
-  @Input() heroes: Heroes;
+   @Input() heroes: Hero[];
 }

aio/content/examples/animations/src/app/hero-list-inline-styles.component.ts

@@ -12,7 +12,7 @@ import {
 } from '@angular/animations';
 // #enddocregion imports
 
-import { Heroes } from './hero.service';
+import { Hero } from './hero.service';
 
 @Component({
  selector: 'hero-list-inline-styles',
@@ -56,5 +56,5 @@ import { Heroes } from './hero.service';
  // #enddocregion animationdef
 })
 export class HeroListInlineStylesComponent {
- @Input() heroes: Heroes;
+  @Input() heroes: Hero[];
 }

aio/content/examples/animations/src/app/hero-list-multistep.component.ts

@@ -12,7 +12,7 @@ import {
   AnimationEvent
 } from '@angular/animations';
 
-import { Heroes } from './hero.service';
+import { Hero } from './hero.service';
 
 @Component({
   selector: 'hero-list-multistep',
@@ -59,7 +59,7 @@ import { Heroes } from './hero.service';
   // #enddocregion animationdef
 })
 export class HeroListMultistepComponent {
-  @Input() heroes: Heroes;
+   @Input() heroes: Hero[];
 
   animationStarted(event: AnimationEvent) {
     console.warn('Animation started: ', event);

aio/content/examples/animations/src/app/hero-list-timings.component.ts

@@ -10,7 +10,7 @@ import {
   transition
 } from '@angular/animations';
 
-import { Heroes } from './hero.service';
+import { Hero } from './hero.service';
 
 @Component({
   selector: 'hero-list-timings',
@@ -44,7 +44,7 @@ import { Heroes } from './hero.service';
         animate('0.2s ease-in')
       ]),
       transition('* => void', [
-        animate('0.2s 10 ease-out', style({
+        animate('0.2s 0.1s ease-out', style({
           opacity: 0,
           transform: 'translateX(100%)'
         }))
@@ -54,5 +54,5 @@ import { Heroes } from './hero.service';
   // #enddocregion animationdef
 })
 export class HeroListTimingsComponent {
-  @Input() heroes: Heroes;
+   @Input() heroes: Hero[];
 }

aio/content/examples/animations/src/app/hero-list-twoway.component.ts

@@ -13,7 +13,7 @@ import {
 } from '@angular/animations';
 // #enddocregion imports
 
-import { Heroes } from './hero.service';
+import { Hero } from './hero.service';
 
 @Component({
  selector: 'hero-list-twoway',
@@ -54,5 +54,5 @@ import { Heroes } from './hero.service';
  // #enddocregion animationdef
 })
 export class HeroListTwowayComponent {
- @Input() heroes: Heroes;
+  @Input() heroes: Hero[];
 }

aio/content/examples/animations/src/app/hero-team-builder.component.ts

@@ -1,40 +1,41 @@
 import { Component } from '@angular/core';
 
-import { Heroes } from './hero.service';
+import { Hero, HeroService } from './hero.service';
 
 @Component({
   selector: 'hero-team-builder',
   template: `
     <div class="buttons">
-      <button [disabled]="!heroes.canAdd()" (click)="heroes.addInactive()">Add inactive hero</button>
-      <button [disabled]="!heroes.canAdd()" (click)="heroes.addActive()">Add active hero</button>
-      <button [disabled]="!heroes.canRemove()" (click)="heroes.remove()">Remove hero</button>
+      <button [disabled]="!heroService.canAdd()" (click)="heroService.addInactive()">Add inactive hero</button>
+      <button [disabled]="!heroService.canAdd()" (click)="heroService.addActive()">Add active hero</button>
+      <button [disabled]="!heroService.canRemove()" (click)="heroService.remove()">Remove hero</button>
     </div>
+
     <div class="columns">
       <div class="column">
         <h4>Basic State</h4>
         <p>Switch between active/inactive on click.</p>
-        <hero-list-basic [heroes]=heroes></hero-list-basic>
+        <hero-list-basic [heroes]="heroes"></hero-list-basic>
       </div>
       <div class="column">
         <h4>Styles inline in transitions</h4>
-        <p>Animated effect on click, no persistend end styles.</p>
-        <hero-list-inline-styles [heroes]=heroes></hero-list-inline-styles>
+        <p>Animated effect on click, no persistent end styles.</p>
+        <hero-list-inline-styles [heroes]="heroes"></hero-list-inline-styles>
       </div>
       <div class="column">
         <h4>Combined transition syntax</h4>
         <p>Switch between active/inactive on click. Define just one transition used in both directions.</p>
-        <hero-list-combined-transitions [heroes]=heroes></hero-list-combined-transitions>
+        <hero-list-combined-transitions [heroes]="heroes"></hero-list-combined-transitions>
       </div>
       <div class="column">
         <h4>Two-way transition syntax</h4>
         <p>Switch between active/inactive on click. Define just one transition used in both directions using the <=> syntax.</p>
-        <hero-list-twoway [heroes]=heroes></hero-list-twoway>
+        <hero-list-twoway [heroes]="heroes"></hero-list-twoway>
       </div>
       <div class="column">
         <h4>Enter & Leave</h4>
         <p>Enter and leave animations using the void state.</p>
-        <hero-list-enter-leave [heroes]=heroes></hero-list-enter-leave>
+        <hero-list-enter-leave [heroes]="heroes"></hero-list-enter-leave>
       </div>
     </div>
     <div class="columns">
@@ -44,27 +45,27 @@ import { Heroes } from './hero.service';
           Enter and leave animations combined with active/inactive state animations.
           Different enter and leave transitions depending on state.
         </p>
-        <hero-list-enter-leave-states [heroes]=heroes></hero-list-enter-leave-states>
+        <hero-list-enter-leave-states [heroes]="heroes"></hero-list-enter-leave-states>
       </div>
       <div class="column">
         <h4>Auto Style Calc</h4>
         <p>Leave animation from the current computed height using the auto-style value *.</p>
-        <hero-list-auto [heroes]=heroes></hero-list-auto>
+        <hero-list-auto [heroes]="heroes"></hero-list-auto>
       </div>
       <div class="column">
         <h4>Different Timings</h4>
         <p>Enter and leave animations with different easings, ease-in for enter, ease-out for leave.</p>
-        <hero-list-timings [heroes]=heroes></hero-list-timings>
+        <hero-list-timings [heroes]="heroes"></hero-list-timings>
       </div>
       <div class="column">
         <h4>Multiple Keyframes</h4>
         <p>Enter and leave animations with three keyframes in each, to give the transition some bounce.</p>
-        <hero-list-multistep [heroes]=heroes></hero-list-multistep>
+        <hero-list-multistep [heroes]="heroes"></hero-list-multistep>
       </div>
       <div class="column">
         <h4>Parallel Groups</h4>
         <p>Enter and leave animations with multiple properties animated in parallel with different timings.</p>
-        <hero-list-groups [heroes]=heroes></hero-list-groups>
+        <hero-list-groups [heroes]="heroes"></hero-list-groups>
       </div>
     </div>
   `,
@@ -87,8 +88,12 @@ import { Heroes } from './hero.service';
       min-height: 6em;
     }
   `],
-  providers: [Heroes]
+  providers: [HeroService]
 })
 export class HeroTeamBuilderComponent {
-  constructor(private heroes: Heroes) { }
+  heroes: Hero[];
+
+  constructor(private heroService: HeroService) {
+    this.heroes = heroService.heroes;
+  }
 }

aio/content/examples/animations/src/app/hero.service.ts

@@ -1,16 +1,16 @@
 import { Injectable } from '@angular/core';
 
-class Hero {
-  constructor(public name: string,
-              public state = 'inactive') {
-  }
+// #docregion hero
+export class Hero {
+  constructor(public name: string, public state = 'inactive') { }
 
   toggleState() {
-    this.state = (this.state === 'active' ? 'inactive' : 'active');
+    this.state = this.state === 'active' ? 'inactive' : 'active';
   }
 }
+// #enddocregion hero
 
-let ALL_HEROES = [
+const ALL_HEROES = [
   'Windstorm',
   'RubberMan',
   'Bombasto',
@@ -25,36 +25,30 @@ let ALL_HEROES = [
 ].map(name => new Hero(name));
 
 @Injectable()
-export class Heroes implements Iterable<Hero> {
+export class HeroService {
 
-  currentHeroes: Hero[] = [];
-
-  [Symbol.iterator]() {
-    return this.currentHeroes.values();
-  }
+  heroes: Hero[] = [];
 
   canAdd() {
-    return this.currentHeroes.length < ALL_HEROES.length;
+    return this.heroes.length < ALL_HEROES.length;
   }
 
   canRemove() {
-    return this.currentHeroes.length > 0;
+    return this.heroes.length > 0;
   }
 
-  addActive() {
-    let hero = ALL_HEROES[this.currentHeroes.length];
-    hero.state = 'active';
-    this.currentHeroes.push(hero);
+  addActive(active = true) {
+    let hero = ALL_HEROES[this.heroes.length];
+    hero.state = active ? 'active' : 'inactive';
+    this.heroes.push(hero);
   }
 
   addInactive() {
-    let hero = ALL_HEROES[this.currentHeroes.length];
-    hero.state = 'inactive';
-    this.currentHeroes.push(hero);
+    this.addActive(false);
   }
 
   remove() {
-    this.currentHeroes.splice(this.currentHeroes.length - 1, 1);
+    this.heroes.length -= 1;
   }
 
 }

aio/content/examples/aot-compiler/.gitignore

@@ -1,7 +0,0 @@
-**/*.ngfactory.ts
-**/*.ngsummary.json
-**/*.shim.ngstyle.ts
-**/*.metadata.json
-dist
-!app/tsconfig.json
-!rollup-config.js

aio/content/examples/aot-compiler/rollup-config.js

@@ -1,8 +1,7 @@
 // #docregion
-import rollup      from 'rollup'
-import nodeResolve from 'rollup-plugin-node-resolve'
+import nodeResolve from 'rollup-plugin-node-resolve';
 import commonjs    from 'rollup-plugin-commonjs';
-import uglify      from 'rollup-plugin-uglify'
+import uglify      from 'rollup-plugin-uglify';
 
 // #docregion config
 export default {
@@ -30,5 +29,5 @@ export default {
       uglify()
       // #enddocregion uglify
   ]
-}
+};
 // #enddocregion config

aio/content/examples/architecture/src/app/backend.service.ts

@@ -6,7 +6,7 @@ import { Hero } from './hero';
 const HEROES = [
         new Hero('Windstorm', 'Weather mastery'),
         new Hero('Mr. Nice', 'Killing them with kindness'),
-        new Hero('Magneta', 'Manipulates metalic objects')
+        new Hero('Magneta', 'Manipulates metallic objects')
       ];
 
 @Injectable()

aio/content/examples/cli-quickstart/.gitignore

@@ -1,45 +0,0 @@
-# See http://help.github.com/ignore-files/ for more about ignoring files.
-
-# compiled output
-/dist
-/tmp
-
-# dependencies
-/node_modules
-
-# IDEs and editors
-/.idea
-.project
-.classpath
-.c9/
-*.launch
-.settings/
-*.sublime-workspace
-
-# IDE - VSCode
-.vscode/*
-!.vscode/settings.json
-!.vscode/tasks.json
-!.vscode/launch.json
-!.vscode/extensions.json
-
-# misc
-/.sass-cache
-/connect.lock
-/coverage/*
-/libpeerconnection.log
-npm-debug.log
-testem.log
-/typings
-
-# e2e
-/e2e/*.js
-/e2e/*.map
-
-#System Files
-.DS_Store
-Thumbs.db
-
-!src/styles.css
-!karma.conf.js
-!protractor.conf.js

aio/content/examples/cli-quickstart/e2e-spec.ts

@@ -9,6 +9,6 @@ describe('cli-quickstart App', () => {
 
   it('should display message saying app works', () => {
     let pageTitle = element(by.css('app-root h1')).getText();
-    expect(pageTitle).toEqual('My First Angular App');
+    expect(pageTitle).toEqual('Welcome to My First Angular App!!');
   });
 });

aio/content/examples/cli-quickstart/e2e/app.e2e-spec.ts

@@ -9,6 +9,6 @@ describe('my-app App', function() {
 
   it('should display message saying app works', () => {
     page.navigateTo();
-    expect(page.getParagraphText()).toEqual('app works!');
+    expect(page.getParagraphText()).toEqual('Welcome to app!!');
   });
 });

aio/content/examples/cli-quickstart/e2e/tsconfig.e2e.json

@@ -1,18 +1,12 @@
 {
+  "extends": "../tsconfig.json",
   "compilerOptions": {
-    "sourceMap": true,
-    "declaration": false,
-    "moduleResolution": "node",
-    "emitDecoratorMetadata": true,
-    "experimentalDecorators": true,
-    "lib": [
-      "es2016"
-    ],
-    "outDir": "../dist/out-tsc-e2e",
+    "outDir": "../out-tsc/e2e",
     "module": "commonjs",
-    "target": "es6",
-    "types":[
+    "target": "es5",
+    "types": [
       "jasmine",
+      "jasminewd2",
       "node"
     ]
   }

aio/content/examples/cli-quickstart/src/app/app.component.html

@@ -1,3 +1,20 @@
-<h1>
-  {{title}}
-</h1>
+<!--The content below is only a placeholder and can be replaced.-->
+<div style="text-align:center">
+  <h1>
+    Welcome to {{title}}!!
+  </h1>
+  <img width="300" alt="Angular logo" src="data:image/svg+xml;base64,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">
+</div>
+<h2>Here are some links to help you start: </h2>
+<ul>
+  <li>
+    <h2><a target="_blank" href="https://angular.io/tutorial">Tour of Heroes</a></h2>
+  </li>
+  <li>
+    <h2><a target="_blank" href="https://github.com/angular/angular-cli/wiki">CLI Documentation</a></h2>
+  </li>
+  <li>
+    <h2><a target="_blank" href="http://angularjs.blogspot.ca/">Angular blog</a></h2>
+  </li>
+</ul>
+

aio/content/examples/cli-quickstart/src/app/app.component.spec.ts

@@ -17,16 +17,16 @@ describe('AppComponent', () => {
     expect(app).toBeTruthy();
   }));
 
-  it(`should have as title 'app works!'`, async(() => {
+  it(`should have as title 'app'`, async(() => {
     const fixture = TestBed.createComponent(AppComponent);
     const app = fixture.debugElement.componentInstance;
-    expect(app.title).toEqual('app works!');
+    expect(app.title).toEqual('app');
   }));
 
   it('should render title in a h1 tag', async(() => {
     const fixture = TestBed.createComponent(AppComponent);
     fixture.detectChanges();
     const compiled = fixture.debugElement.nativeElement;
-    expect(compiled.querySelector('h1').textContent).toContain('app works!');
+    expect(compiled.querySelector('h1').textContent).toContain('Welcome to app!!');
   }));
 });

aio/content/examples/cli-quickstart/src/app/app.module.ts

@@ -1,7 +1,5 @@
 import { BrowserModule } from '@angular/platform-browser';
 import { NgModule } from '@angular/core';
-import { FormsModule } from '@angular/forms';
-import { HttpModule } from '@angular/http';
 
 import { AppComponent } from './app.component';
 
@@ -10,9 +8,7 @@ import { AppComponent } from './app.component';
     AppComponent
   ],
   imports: [
-    BrowserModule,
-    FormsModule,
-    HttpModule
+    BrowserModule
   ],
   providers: [],
   bootstrap: [AppComponent]

aio/content/examples/cli-quickstart/src/index.html

@@ -1,5 +1,5 @@
 <!doctype html>
-<html>
+<html lang="en">
 <head>
   <meta charset="utf-8">
   <title>MyApp</title>
@@ -9,6 +9,6 @@
   <link rel="icon" type="image/x-icon" href="favicon.ico">
 </head>
 <body>
-  <app-root>Loading...</app-root>
+  <app-root></app-root>
 </body>
 </html>

aio/content/examples/cli-quickstart/src/polyfills.ts

@@ -31,21 +31,21 @@
 // import 'core-js/es6/array';
 // import 'core-js/es6/regexp';
 // import 'core-js/es6/map';
+// import 'core-js/es6/weak-map';
 // import 'core-js/es6/set';
 
 /** IE10 and IE11 requires the following for NgClass support on SVG elements */
 // import 'classlist.js';  // Run `npm install --save classlist.js`.
 
-/** IE10 and IE11 requires the following to support `@angular/animation`. */
-// import 'web-animations-js';  // Run `npm install --save web-animations-js`.
-
-
 /** Evergreen browsers require these. **/
 import 'core-js/es6/reflect';
 import 'core-js/es7/reflect';
 
 
-/** ALL Firefox browsers require the following to support `@angular/animation`. **/
+/**
+ * Required to support Web Animations `@angular/animation`.
+ * Needed for: All but Chrome, Firefox and Opera. http://caniuse.com/#feat=web-animation
+ **/
 // import 'web-animations-js';  // Run `npm install --save web-animations-js`.
 
 
@@ -66,3 +66,7 @@ import 'zone.js/dist/zone';  // Included with Angular CLI.
  * Needed for: All but Chrome, Firefox, Edge, IE11 and Safari 10
  */
 // import 'intl';  // Run `npm install --save intl`.
+/**
+ * Need to import at least one locale-data with intl.
+ */
+// import 'intl/locale-data/jsonp/en';

aio/content/examples/cli-quickstart/src/styles.css

@@ -1,116 +0,0 @@
-/* #docregion , quickstart, toh */
-/* Master Styles */
-h1 {
-  color: #369;
-  font-family: Arial, Helvetica, sans-serif;
-  font-size: 250%;
-}
-h2, h3 {
-  color: #444;
-  font-family: Arial, Helvetica, sans-serif;
-  font-weight: lighter;
-}
-body {
-  margin: 2em;
-}
-/* #enddocregion quickstart */
-body, input[text], button {
-  color: #888;
-  font-family: Cambria, Georgia;
-}
-/* #enddocregion toh */
-a {
-  cursor: pointer;
-  cursor: hand;
-}
-button {
-  font-family: Arial;
-  background-color: #eee;
-  border: none;
-  padding: 5px 10px;
-  border-radius: 4px;
-  cursor: pointer;
-  cursor: hand;
-}
-button:hover {
-  background-color: #cfd8dc;
-}
-button:disabled {
-  background-color: #eee;
-  color: #aaa;
-  cursor: auto;
-}
-
-/* Navigation link styles */
-nav a {
-  padding: 5px 10px;
-  text-decoration: none;
-  margin-right: 10px;
-  margin-top: 10px;
-  display: inline-block;
-  background-color: #eee;
-  border-radius: 4px;
-}
-nav a:visited, a:link {
-  color: #607D8B;
-}
-nav a:hover {
-  color: #039be5;
-  background-color: #CFD8DC;
-}
-nav a.active {
-  color: #039be5;
-}
-
-/* items class */
-.items {
-  margin: 0 0 2em 0;
-  list-style-type: none;
-  padding: 0;
-  width: 24em;
-}
-.items li {
-  cursor: pointer;
-  position: relative;
-  left: 0;
-  background-color: #EEE;
-  margin: .5em;
-  padding: .3em 0;
-  height: 1.6em;
-  border-radius: 4px;
-}
-.items li:hover {
-  color: #607D8B;
-  background-color: #DDD;
-  left: .1em;
-}
-.items li.selected {
-  background-color: #CFD8DC;
-  color: white;
-}
-.items li.selected:hover {
-  background-color: #BBD8DC;
-}
-.items .text {
-  position: relative;
-  top: -3px;
-}
-.items .badge {
-  display: inline-block;
-  font-size: small;
-  color: white;
-  padding: 0.8em 0.7em 0 0.7em;
-  background-color: #607D8B;
-  line-height: 1em;
-  position: relative;
-  left: -1px;
-  top: -4px;
-  height: 1.8em;
-  margin-right: .8em;
-  border-radius: 4px 0 0 4px;
-}
-/* #docregion toh */
-/* everywhere else */
-* {
-  font-family: Arial, Helvetica, sans-serif;
-}

aio/content/examples/cli-quickstart/src/tsconfig.app.json

@@ -1,16 +1,7 @@
 {
+  "extends": "../tsconfig.json",
   "compilerOptions": {
-    "sourceMap": true,
-    "declaration": false,
-    "moduleResolution": "node",
-    "emitDecoratorMetadata": true,
-    "experimentalDecorators": true,
-    "lib": [
-      "es2016",
-      "dom"
-    ],
     "outDir": "../out-tsc/app",
-    "target": "es5",
     "module": "es2015",
     "baseUrl": "",
     "types": []

aio/content/examples/cli-quickstart/src/tsconfig.spec.json

@@ -1,16 +1,9 @@
 {
+  "extends": "../tsconfig.json",
   "compilerOptions": {
-    "sourceMap": true,
-    "declaration": false,
-    "moduleResolution": "node",
-    "emitDecoratorMetadata": true,
-    "experimentalDecorators": true,
-    "lib": [
-      "es2016"
-    ],
     "outDir": "../out-tsc/spec",
     "module": "commonjs",
-    "target": "es6",
+    "target": "es5",
     "baseUrl": "",
     "types": [
       "jasmine",
@@ -21,6 +14,7 @@
     "test.ts"
   ],
   "include": [
-    "**/*.spec.ts"
+    "**/*.spec.ts",
+    "**/*.d.ts"
   ]
 }

aio/content/examples/cli-quickstart/src/typings.d.ts

@@ -0,0 +1,5 @@
+/* SystemJS module definition */
+declare var module: NodeModule;
+interface NodeModule {
+  id: string;
+}

aio/content/examples/cli-quickstart/tsconfig.json

@@ -2,13 +2,19 @@
   "compileOnSave": false,
   "compilerOptions": {
     "outDir": "./dist/out-tsc",
+    "baseUrl": "src",
     "sourceMap": true,
     "declaration": false,
     "moduleResolution": "node",
     "emitDecoratorMetadata": true,
     "experimentalDecorators": true,
+    "target": "es5",
+    "typeRoots": [
+      "node_modules/@types"
+    ],
     "lib": [
-      "es2016"
+      "es2016",
+      "dom"
     ]
   }
 }