Pete Bacon Darwin 7c4c676413 feat(ivy): customize ngcc via configuration files (#30591)
There are scenarios where it is not possible for ngcc to guess the format
or configuration of an entry-point just from the files on disk.

Such scenarios include:

1) Unwanted entry-points: A spurious package.json makes ngcc think
there is an entry-point when there should not be one.

2) Deep-import entry-points: some packages allow deep-imports but do not
provide package.json files to indicate to ngcc that the imported path is
actually an entry-point to be processed.

3) Invalid/missing package.json properties: For example, an entry-point
that does not provide a valid property to a required format.

The configuration is provided by one or more `ngcc.config.js` files:

* If placed at the root of the project, this file can provide configuration
for named packages (and their entry-points) that have been npm installed
into the project.

* If published as part of a package, the file can provide configuration
for entry-points of the package.

The configured of a package at the project level will override any
configuration provided by the package itself.

PR Close #30591
2019-06-26 08:00:02 -07:00
..

Angular Compatibility Compiler (ngcc)

This compiler will convert node_modules compiled with ngc, into node_modules which appear to have been compiled with ngtsc.

This conversion will allow such "legacy" packages to be used by the Ivy rendering engine.

Building

The project is built using Bazel:

yarn bazel build //packages/compiler-cli/ngcc

Unit Testing

The unit tests are built and run using Bazel:

yarn bazel test //packages/compiler-cli/ngcc/test

Integration Testing

There are tests that check the behavior of the overall executable:

yarn bazel test //packages/compiler-cli/ngcc/test:integration