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fix(bazel): do not throw error when writing tsickle externs (#27200) 

* Currently when building the ES5 and ES2015 output, `ngc_wrapped` will fail because it tries to write the `fs.openSync` the tsickle output file at the same time. This causes a runtime exception in Windows and can be fixed by just writing the externs for ES5 mode to the proper ES5 "output root".

PR Close #27200
This commit is contained in:
Paul Gschwendtner 2018-11-21 19:49:33 +01:00 committed by Igor Minar
parent 7d598801f0
commit 20a2bae1d3
1 changed files with 19 additions and 10 deletions
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29
packages/bazel/src/modify_tsconfig.js
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@ -18,24 +18,33 @@ function main(args) {
if (args.length < 3) {
console.error('Usage: $0 input.tsconfig.json output.tsconfig.json newRoot binDir');
}
[input, output, newRoot, binDir] = args;
const [input, output, newRoot, binDir] = args;
const data = JSON.parse(fs.readFileSync(input, {encoding: 'utf-8'}));
data['compilerOptions']['target'] = 'es5';
data['bazelOptions']['es5Mode'] = true;
data['compilerOptions']['outDir'] = path.posix.join(data['compilerOptions']['outDir'], newRoot);
const {compilerOptions, bazelOptions} = data;
// Relative path to the execroot that refers to the directory for the ES5 output files.
const newOutputBase = path.posix.join(binDir, newRoot);
// Update the compiler options to produce ES5 output. Also ensure that the new ES5 output
// directory is used.
compilerOptions['target'] = 'es5';
compilerOptions['outDir'] = path.posix.join(compilerOptions['outDir'], newRoot);
bazelOptions['es5Mode'] = true;
bazelOptions['tsickleExternsPath'] =
bazelOptions['tsickleExternsPath'].replace(binDir, newOutputBase);
if (data['angularCompilerOptions']) {
// Relative path to the execroot that refers to the directory for the ES5 output files.
const newOutputBase = path.posix.join(binDir, newRoot);
const {angularCompilerOptions} = data;
// Don't enable tsickle's closure conversions
data['angularCompilerOptions']['annotateForClosureCompiler'] = false;
angularCompilerOptions['annotateForClosureCompiler'] = false;
// Note: It's important that the "expectedOut" is only modified in a way that still
// keeps posix normalized paths. Otherwise this could cause unexpected behavior because
// ngc-wrapped is expecting POSIX paths and the TypeScript Bazel rules by default only pass
// POSIX paths as well.
data['angularCompilerOptions']['expectedOut'] =
data['angularCompilerOptions']['expectedOut'].map(
f => f.replace(/\.closure\.js$/, '.js').replace(binDir, newOutputBase));
angularCompilerOptions['expectedOut'] = angularCompilerOptions['expectedOut'].map(
f => f.replace(/\.closure\.js$/, '.js').replace(binDir, newOutputBase));
}
fs.writeFileSync(output, JSON.stringify(data));
}