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fix(ivy): ensure that changes to component resources trigger incremental builds (#30954)

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Optimizations to skip compiling source files that had not changed
did not account for the case where only a resource file changes,
such as an external template or style file.

Now we track such dependencies and trigger a recompilation
if any of the previously tracked resources have changed.

This will require a change on the CLI side to provide the list of
resource files that changed to trigger the current compilation by
implementing `CompilerHost.getModifiedResourceFiles()`.

Closes #30947

PR Close #30954
This commit is contained in:
Pete Bacon Darwin
2019-06-10 16:22:56 +01:00
committed by Kara Erickson
parent dc613b336d
commit 48def92cad
13 changed files with 159 additions and 43 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
packages/compiler-cli/test/ngtsc/env.ts
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@ -39,6 +39,7 @@ function setupFakeCore(support: TestSupport): void {
export class NgtscTestEnvironment {
private multiCompileHostExt: MultiCompileHostExt|null = null;
private oldProgram: Program|null = null;
private changedResources: Set<string>|undefined = undefined;
private constructor(private support: TestSupport, readonly outDir: string) {}
@ -106,6 +107,7 @@ export class NgtscTestEnvironment {
}
enableMultipleCompilations(): void {
this.changedResources = new Set();
this.multiCompileHostExt = new MultiCompileHostExt();
setWrapHostForTest(makeWrapHost(this.multiCompileHostExt));
}
@ -114,6 +116,7 @@ export class NgtscTestEnvironment {
if (this.multiCompileHostExt === null) {
throw new Error(`Not tracking written files - call enableMultipleCompilations()`);
}
this.changedResources !.clear();
this.multiCompileHostExt.flushWrittenFileTracking();
}
@ -133,8 +136,9 @@ export class NgtscTestEnvironment {
write(fileName: string, content: string) {
if (this.multiCompileHostExt !== null) {
const absFilePath = path.posix.resolve(this.support.basePath, fileName);
const absFilePath = path.resolve(this.support.basePath, fileName).replace(/\\/g, '/');
this.multiCompileHostExt.invalidate(absFilePath);
this.changedResources !.add(absFilePath);
}
this.support.write(fileName, content);
}
@ -175,8 +179,9 @@ export class NgtscTestEnvironment {
program: this.oldProgram || undefined,
};
}
const exitCode =
main(['-p', this.basePath], errorSpy, undefined, customTransformers, reuseProgram);
const exitCode = main(
['-p', this.basePath], errorSpy, undefined, customTransformers, reuseProgram,
this.changedResources);
expect(errorSpy).not.toHaveBeenCalled();
expect(exitCode).toBe(0);
if (this.multiCompileHostExt !== null) {