61 lines
2.2 KiB
TypeScript
61 lines
2.2 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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var minimatch = require('minimatch');
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var FILE_ENCODING = {encoding: 'utf-8'};
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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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class DiffingReplace implements DiffingBroccoliPlugin {
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// TODO: define an interface for options
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constructor(private inputPath: string, private cachePath: string, private options: any) {}
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rebuild(treeDiff: DiffResult) {
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var patterns = this.options.patterns;
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var files = this.options.files;
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treeDiff.addedPaths.concat(treeDiff.changedPaths)
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.forEach((changedFilePath) => {
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var sourceFilePath = path.join(this.inputPath, changedFilePath);
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var destFilePath = path.join(this.cachePath, 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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var fileMatches = files.some((filePath: string) => minimatch(changedFilePath, filePath));
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if (fileMatches) {
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var content = fs.readFileSync(sourceFilePath, FILE_ENCODING);
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patterns.forEach((pattern: any) => {
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var replacement = pattern.replacement;
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if (typeof replacement === 'function') {
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replacement = function(content: string) {
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return pattern.replacement(content, changedFilePath);
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};
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}
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content = content.replace(pattern.match, replacement);
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});
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fs.writeFileSync(destFilePath, content, FILE_ENCODING);
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} else if (!fs.existsSync(destFilePath)) {
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try {
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fs.symlinkSync(sourceFilePath, destFilePath);
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} catch (e) {
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fs.writeFileSync(destFilePath, fs.readFileSync(sourceFilePath));
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}
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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, 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(DiffingReplace);
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