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perf(compiler): skip type check and emit in bazel in some cases. (#19646)

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If no user files changed:
- only type check the changed generated files

Never emit non changed generated files
- we still calculate them, but don’t send them through
  TypeScript to emit them but cache the written files instead.
PR Close #19646
This commit is contained in:
Tobias Bosch
2017-10-10 13:45:42 -07:00
committed by Chuck Jazdzewski
parent 3acf9c7063
commit a22121d65d
21 changed files with 596 additions and 297 deletions
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37
packages/compiler-cli/test/transformers/program_spec.ts
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@ -58,7 +58,8 @@ describe('ng program', () => {
function compile(
oldProgram?: ng.Program, overrideOptions?: ng.CompilerOptions, rootNames?: string[],
host?: CompilerHost): {program: ng.Program, emitResult: ts.EmitResult} {
host?: CompilerHost,
targetFileNames?: string[]): {program: ng.Program, emitResult: ts.EmitResult} {
const options = testSupport.createCompilerOptions(overrideOptions);
if (!rootNames) {
rootNames = [path.resolve(testSupport.basePath, 'src/index.ts')];
@ -73,7 +74,7 @@ describe('ng program', () => {
oldProgram,
});
expectNoDiagnosticsInProgram(options, program);
const emitResult = program.emit();
const emitResult = program.emit({targetFileNames});
return {emitResult, program};
}
@ -475,6 +476,38 @@ describe('ng program', () => {
testSupport.shouldNotExist('built/node_modules/lib/index.ngsummary.json');
});
it('should only emit the given files', () => {
testSupport.writeFiles({
'src/main.ts': createModuleAndCompSource('main'),
'src/main2.ts': createModuleAndCompSource('main2'),
'src/index.ts': `
export * from './main';
export * from './main2';
`
});
compile(undefined, undefined, undefined, undefined, [
path.resolve(testSupport.basePath, 'src/index.ts'),
path.resolve(testSupport.basePath, 'src/index.ngfactory.ts'),
path.resolve(testSupport.basePath, 'src/main.ts'),
path.resolve(testSupport.basePath, 'src/main.ngfactory.ts')
]);
testSupport.shouldExist('built/src/main.js');
testSupport.shouldExist('built/src/main.d.ts');
testSupport.shouldExist('built/src/main.ngfactory.js');
testSupport.shouldExist('built/src/main.ngfactory.d.ts');
testSupport.shouldExist('built/src/main.ngsummary.json');
testSupport.shouldNotExist('built/src/main2.js');
testSupport.shouldNotExist('built/src/main2.d.ts');
testSupport.shouldNotExist('built/src/main2.ngfactory.js');
testSupport.shouldNotExist('built/src/main2.ngfactory.d.ts');
testSupport.shouldNotExist('built/src/main2.ngsummary.json');
testSupport.shouldNotExist('built/node_modules/lib/index.js');
testSupport.shouldNotExist('built/node_modules/lib/index.d.ts');
testSupport.shouldNotExist('built/node_modules/lib/index.ngfactory.js');
testSupport.shouldNotExist('built/node_modules/lib/index.ngfactory.d.ts');
testSupport.shouldNotExist('built/node_modules/lib/index.ngsummary.json');
});
describe('createSrcToOutPathMapper', () => {
it('should return identity mapping if no outDir is present', () => {
const mapper = createSrcToOutPathMapper(undefined, undefined, undefined);