20a2bae1d3
* 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
55 lines
2.0 KiB
JavaScript
55 lines
2.0 KiB
JavaScript
/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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/**
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* @fileoverview Read a tsconfig.json file intended to produce production mode
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* JS output, modify it to produce esm5 output instead, and write the result
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* to disk.
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*/
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const fs = require('fs');
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const path = require('path');
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function main(args) {
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if (args.length < 3) {
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console.error('Usage: $0 input.tsconfig.json output.tsconfig.json newRoot binDir');
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}
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const [input, output, newRoot, binDir] = args;
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const data = JSON.parse(fs.readFileSync(input, {encoding: 'utf-8'}));
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const {compilerOptions, bazelOptions} = data;
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// Relative path to the execroot that refers to the directory for the ES5 output files.
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const newOutputBase = path.posix.join(binDir, newRoot);
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// Update the compiler options to produce ES5 output. Also ensure that the new ES5 output
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// directory is used.
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compilerOptions['target'] = 'es5';
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compilerOptions['outDir'] = path.posix.join(compilerOptions['outDir'], newRoot);
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bazelOptions['es5Mode'] = true;
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bazelOptions['tsickleExternsPath'] =
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bazelOptions['tsickleExternsPath'].replace(binDir, newOutputBase);
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if (data['angularCompilerOptions']) {
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const {angularCompilerOptions} = data;
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// Don't enable tsickle's closure conversions
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angularCompilerOptions['annotateForClosureCompiler'] = false;
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// Note: It's important that the "expectedOut" is only modified in a way that still
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// keeps posix normalized paths. Otherwise this could cause unexpected behavior because
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// ngc-wrapped is expecting POSIX paths and the TypeScript Bazel rules by default only pass
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// POSIX paths as well.
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angularCompilerOptions['expectedOut'] = angularCompilerOptions['expectedOut'].map(
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f => f.replace(/\.closure\.js$/, '.js').replace(binDir, newOutputBase));
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}
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fs.writeFileSync(output, JSON.stringify(data));
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}
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if (require.main === module) {
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process.exitCode = main(process.argv.slice(2));
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}
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