angular-docs-cn/tools/tsc-watch/index.ts

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import {spawn} from 'child_process';
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import {existsSync, mkdirSync, writeFileSync} from 'fs';
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import {TSC, TscWatch, reportError} from './tsc_watch';
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export * from './tsc_watch';
import 'reflect-metadata';
const OFFLINE_COMPILE = [
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'output/output_emitter_codegen_untyped', 'output/output_emitter_codegen_typed',
'offline_compiler_codegen_untyped', 'offline_compiler_codegen_typed'
];
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function processOutputEmitterCodeGen(): Promise<number> {
return new Promise((resolve, reject) => {
var outDir = 'dist/all/@angular/compiler/test/';
var promises: Promise<any>[] = [];
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console.log('Processing codegen...');
OFFLINE_COMPILE.forEach((file: string) => {
var codegen = require('../../all/@angular/compiler/test/' + file + '.js');
if (codegen.emit) {
console.log(` ${file} has changed, regenerating...`);
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promises.push(Promise.resolve(codegen.emit()).then((code) => {
writeFileSync(outDir + file + '.ts', code);
}));
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}
});
if (promises.length) {
Promise.all(promises)
.then(() => {
var args =
['--project', 'tools/cjs-jasmine/tsconfig-output_emitter_codegen.json'];
console.log(' compiling changes: tsc ' + args.join(' '));
var tsc = spawn(TSC, args, {stdio: 'pipe'});
tsc.stdout.on('data', (data: any) => process.stdout.write(data));
tsc.stderr.on('data', (data: any) => process.stderr.write(data));
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tsc.on(
'close',
(code: any) => code ? reject('Tsc exited with: ' + code) : resolve(code));
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})
.catch(reportError);
} else {
resolve(0);
}
})
.catch(reportError);
}
function md(dir: string, folders: string[]) {
if (folders.length) {
var next = folders.shift();
var path = dir + '/' + next;
if (!existsSync(path)) {
mkdirSync(path);
}
md(path, folders);
}
}
var tscWatch: TscWatch = null;
var platform = process.argv.length >= 3 ? process.argv[2] : null;
var runMode: string = process.argv.length >= 4 ? process.argv[3] : null;
if (platform == 'node') {
tscWatch = new TscWatch({
tsconfig: 'modules/tsconfig.json',
start: 'File change detected. Starting incremental compilation...',
error: 'error',
complete: 'Compilation complete. Watching for file changes.',
onChangeCmds: [
processOutputEmitterCodeGen,
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[
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'node', 'dist/tools/cjs-jasmine', '--', '{@angular,benchpress}/**/*_spec.js',
'@angular/compiler-cli/test/**/*_spec.js'
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]
]
});
} else if (platform == 'browser') {
tscWatch = new TscWatch({
tsconfig: 'modules/tsconfig.json',
start: 'File change detected. Starting incremental compilation...',
error: 'error',
complete: 'Compilation complete. Watching for file changes.',
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onStartCmds:
[['node', 'node_modules/karma/bin/karma', 'start', '--no-auto-watch', 'karma-js.conf.js']],
onChangeCmds: [['node', 'node_modules/karma/bin/karma', 'run', 'karma-js.conf.js']]
});
} else if (platform == 'tools') {
tscWatch = new TscWatch({
tsconfig: 'tools/tsconfig.json',
start: 'File change detected. Starting incremental compilation...',
error: 'error',
complete: 'Compilation complete. Watching for file changes.',
onChangeCmds:
[['node', 'dist/tools/cjs-jasmine/index-tools', '--', 'tsc-wrapped/**/*{_,.}spec.js']]
});
}
if (runMode === 'watch') {
tscWatch.watch();
} else if (runMode === 'runCmdsOnly') {
tscWatch.runCmdsOnly();
} else {
tscWatch.run();
}