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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
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32
packages/compiler-cli/src/perform_compile.ts
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@ -220,20 +220,21 @@ export function exitCodeFromResult(diags: Diagnostics | undefined): number {
return diags.some(d => d.source === 'angular' && d.code === api.UNKNOWN_ERROR_CODE) ? 2 : 1;
}
export function performCompilation({rootNames, options, host, oldProgram, emitCallback,
mergeEmitResultsCallback,
gatherDiagnostics = defaultGatherDiagnostics,
customTransformers, emitFlags = api.EmitFlags.Default}: {
rootNames: string[],
options: api.CompilerOptions,
host?: api.CompilerHost,
oldProgram?: api.Program,
emitCallback?: api.TsEmitCallback,
mergeEmitResultsCallback?: api.TsMergeEmitResultsCallback,
gatherDiagnostics?: (program: api.Program) => Diagnostics,
customTransformers?: api.CustomTransformers,
emitFlags?: api.EmitFlags
}): PerformCompilationResult {
export function performCompilation(
{rootNames, options, host, oldProgram, emitCallback, mergeEmitResultsCallback,
gatherDiagnostics = defaultGatherDiagnostics, customTransformers,
emitFlags = api.EmitFlags.Default, modifiedResourceFiles}: {
rootNames: string[],
options: api.CompilerOptions,
host?: api.CompilerHost,
oldProgram?: api.Program,
emitCallback?: api.TsEmitCallback,
mergeEmitResultsCallback?: api.TsMergeEmitResultsCallback,
gatherDiagnostics?: (program: api.Program) => Diagnostics,
customTransformers?: api.CustomTransformers,
emitFlags?: api.EmitFlags,
modifiedResourceFiles?: Set<string>,
}): PerformCompilationResult {
let program: api.Program|undefined;
let emitResult: ts.EmitResult|undefined;
let allDiagnostics: Array<ts.Diagnostic|api.Diagnostic> = [];
@ -241,6 +242,9 @@ export function performCompilation({rootNames, options, host, oldProgram, emitCa
if (!host) {
host = ng.createCompilerHost({options});
}
if (modifiedResourceFiles) {
host.getModifiedResourceFiles = () => modifiedResourceFiles;
}
program = ng.createProgram({rootNames, host, options, oldProgram});