7aa9751054
Once we add support for addedPaths then this implementation will be significantly faster than the original. In the meantime we benefit from having stable output directory which solves issues with certain files disappearing during rebuild of a tree that contains flatten and mergeTree plugins. Closes #2418
38 lines
1.2 KiB
TypeScript
38 lines
1.2 KiB
TypeScript
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 {wrapDiffingPlugin, DiffingBroccoliPlugin, DiffResult} from './diffing-broccoli-plugin';
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/**
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* Intercepts each changed file and replaces its contents with
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* the associated changes.
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*/
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export class DiffingFlatten implements DiffingBroccoliPlugin {
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constructor(private inputPath, private cachePath, private options) {}
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rebuild(treeDiff: DiffResult) {
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treeDiff.changedPaths.forEach((changedFilePath) => {
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var sourceFilePath = path.join(this.inputPath, changedFilePath);
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var destFilePath = path.join(this.cachePath, path.basename(changedFilePath));
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var destDirPath = path.dirname(destFilePath);
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if (!fs.existsSync(destDirPath)) {
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fse.mkdirpSync(destDirPath);
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}
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// TODO: once we have addedPaths support, we should throw dupes are found
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if (!fs.existsSync(destFilePath)) {
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fs.symlinkSync(sourceFilePath, destFilePath);
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}
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});
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treeDiff.removedPaths.forEach((removedFilePath) => {
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var destFilePath = path.join(this.cachePath, path.basename(removedFilePath));
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fs.unlinkSync(destFilePath);
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});
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}
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}
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export default wrapDiffingPlugin(DiffingFlatten);
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