57 lines
1.8 KiB
TypeScript
57 lines
1.8 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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import {AngularBuilderOptions} from './angular_builder';
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var symlinkOrCopy = require('symlink-or-copy').sync;
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var isWindows = process.platform === 'win32';
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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(
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private inputPath: string, private cachePath: string,
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private options: AngularBuilderOptions) {}
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rebuild(treeDiff: DiffResult) {
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let pathsToUpdate = treeDiff.addedPaths;
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// since we need to run on Windows as well we can't rely on symlinks being available,
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// which means that we need to respond to both added and changed paths
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if (isWindows) {
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pathsToUpdate = pathsToUpdate.concat(treeDiff.changedPaths);
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}
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pathsToUpdate.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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if (!fs.existsSync(destFilePath)) {
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symlinkOrCopy(sourceFilePath, destFilePath);
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} else {
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throw new Error(
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`Duplicate file '${path.basename(changedFilePath)}' ` +
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`found in path '${changedFilePath}'`);
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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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