52 lines
1.8 KiB
TypeScript
52 lines
1.8 KiB
TypeScript
/// <reference path="../typings/node/node.d.ts" />
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/// <reference path="../typings/fs-extra/fs-extra.d.ts" />
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import fs = require('fs');
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import fse = require('fs-extra');
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import path = require('path');
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import * as ts2dart from 'ts2dart';
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import {wrapDiffingPlugin, DiffingBroccoliPlugin, DiffResult} from './diffing-broccoli-plugin';
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class TSToDartTranspiler implements DiffingBroccoliPlugin {
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static includeExtensions = ['.ts'];
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private transpiler: ts2dart.Transpiler;
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constructor(public inputPath: string, public cachePath: string,
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public options: ts2dart.TranspilerOptions) {
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options.basePath = inputPath;
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this.transpiler = new ts2dart.Transpiler(options);
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}
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rebuild(treeDiff: DiffResult) {
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let toEmit = [];
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let getDartFilePath = (path: string) => path.replace(/((\.js)|(\.ts))$/i, '.dart');
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treeDiff.addedPaths.concat(treeDiff.changedPaths)
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.forEach((changedPath) => {
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let inputFilePath = path.resolve(this.inputPath, changedPath);
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// Ignore files which don't need to be transpiled to Dart
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let dartInputFilePath = getDartFilePath(inputFilePath);
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if (fs.existsSync(dartInputFilePath)) return;
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// Prepare to rebuild
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toEmit.push(path.resolve(this.inputPath, changedPath));
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});
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treeDiff.removedPaths.forEach((removedPath) => {
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let absolutePath = path.resolve(this.inputPath, removedPath);
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// Ignore files which don't need to be transpiled to Dart
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let dartInputFilePath = getDartFilePath(absolutePath);
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if (fs.existsSync(dartInputFilePath)) return;
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let dartOutputFilePath = getDartFilePath(removedPath);
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fs.unlinkSync(path.join(this.cachePath, dartOutputFilePath));
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});
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this.transpiler.transpile(toEmit, this.cachePath);
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}
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}
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export default wrapDiffingPlugin(TSToDartTranspiler);
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