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fix(compiler): correctly calculate the out path on windows (#19601) 

Fixes #19543
PR Close #19601
This commit is contained in:
Tobias Bosch 2017-10-06 15:12:32 -07:00 committed by Chuck Jazdzewski
parent d7eac7ee56
commit d30ce19231
2 changed files with 25 additions and 7 deletions
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20
packages/compiler-cli/src/transformers/program.ts
View File

@ -679,31 +679,37 @@ function getNgOptionDiagnostics(options: CompilerOptions): Diagnostic[] {
* TODO(tbosch): talk to the TypeScript team to expose their logic for calculating the `rootDir`
* if none was specified.
*
* Note: This function works on normalized paths from typescript.
*
* @param outDir
* @param outSrcMappings
*/
export function createSrcToOutPathMapper(
outDir: string | undefined, sampleSrcFileName: string | undefined,
sampleOutFileName: string | undefined): (srcFileName: string) => string {
sampleOutFileName: string | undefined, host: {
dirname: typeof path.dirname,
resolve: typeof path.resolve,
relative: typeof path.relative
} = path): (srcFileName: string) => string {
let srcToOutPath: (srcFileName: string) => string;
if (outDir) {
if (sampleSrcFileName == null || sampleOutFileName == null) {
throw new Error(`Can't calculate the rootDir without a sample srcFileName / outFileName. `);
}
const srcFileDir = path.dirname(sampleSrcFileName);
const outFileDir = path.dirname(sampleOutFileName);
const srcFileDir = host.dirname(sampleSrcFileName).replace(/\\/g, '/');
const outFileDir = host.dirname(sampleOutFileName).replace(/\\/g, '/');
if (srcFileDir === outFileDir) {
return (srcFileName) => srcFileName;
}
const srcDirParts = srcFileDir.split(path.sep);
const outDirParts = outFileDir.split(path.sep);
const srcDirParts = srcFileDir.split('/');
const outDirParts = outFileDir.split('/');
// calculate the common suffix
let i = 0;
while (i < Math.min(srcDirParts.length, outDirParts.length) &&
srcDirParts[srcDirParts.length - 1 - i] === outDirParts[outDirParts.length - 1 - i])
i++;
const rootDir = srcDirParts.slice(0, srcDirParts.length - i).join(path.sep);
srcToOutPath = (srcFileName) => path.resolve(outDir, path.relative(rootDir, srcFileName));
const rootDir = srcDirParts.slice(0, srcDirParts.length - i).join('/');
srcToOutPath = (srcFileName) => host.resolve(outDir, host.relative(rootDir, srcFileName));
} else {
srcToOutPath = (srcFileName) => srcFileName;
}

12
packages/compiler-cli/test/transformers/program_spec.ts
View File

@ -495,5 +495,17 @@ describe('ng program', () => {
const mapper = createSrcToOutPathMapper('/out', '/tmp/a/x.ts', '/a/x.js');
expect(mapper('/tmp/b/y.js')).toBe('/out/b/y.js');
});
it('should work on windows with normalized paths', () => {
const mapper =
createSrcToOutPathMapper('c:/tmp/out', 'c:/tmp/a/x.ts', 'c:/tmp/out/a/x.js', path.win32);
expect(mapper('c:/tmp/b/y.js')).toBe('c:\\tmp\\out\\b\\y.js');
});
it('should work on windows with non-normalized paths', () => {
const mapper = createSrcToOutPathMapper(
'c:\\tmp\\out', 'c:\\tmp\\a\\x.ts', 'c:\\tmp\\out\\a\\x.js', path.win32);
expect(mapper('c:\\tmp\\b\\y.js')).toBe('c:\\tmp\\out\\b\\y.js');
});
});
});