mirror of https://github.com/webpack/webpack.git
55 lines
2.2 KiB
JavaScript
55 lines
2.2 KiB
JavaScript
/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Tobias Koppers @sokra
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*/
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"use strict";
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const path = require("path");
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class RequestShortener {
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constructor(directory) {
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directory = directory.replace(/\\/g, "/");
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if(/[\/\\]$/.test(directory)) directory = directory.substr(0, directory.length - 1);
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if(directory) {
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const currentDirectoryRegExpString = directory.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
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this.currentDirectoryRegExp = new RegExp("^" + currentDirectoryRegExpString + "|(!)" + currentDirectoryRegExpString, "g");
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}
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const dirname = path.dirname(directory);
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const endsWithSeperator = /[\/\\]$/.test(dirname);
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const parentDirectory = endsWithSeperator ? dirname.substr(0, dirname.length - 1) : dirname;
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if(parentDirectory && parentDirectory !== directory) {
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const parentDirectoryRegExpString = parentDirectory.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
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this.parentDirectoryRegExp = new RegExp("^" + parentDirectoryRegExpString + "|(!)" + parentDirectoryRegExpString, "g");
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}
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if(__dirname.length >= 2) {
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const buildins = path.join(__dirname, "..").replace(/\\/g, "/");
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const buildinsAsModule = this.currentDirectoryRegExp && this.currentDirectoryRegExp.test(buildins);
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this.buildinsAsModule = buildinsAsModule;
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const buildinsRegExpString = buildins.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
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this.buildinsRegExp = new RegExp("^" + buildinsRegExpString + "|(!)" + buildinsRegExpString, "g");
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}
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this.indexJsRegExp = /\/index.js(!|\?|\(query\))/g;
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}
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shorten(request) {
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if(!request) return request;
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request = request.replace(/\\/g, "/");
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if(this.buildinsAsModule && this.buildinsRegExp)
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request = request.replace(this.buildinsRegExp, "!(webpack)");
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if(this.currentDirectoryRegExp)
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request = request.replace(this.currentDirectoryRegExp, "!.");
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if(this.parentDirectoryRegExp)
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request = request.replace(this.parentDirectoryRegExp, "!..");
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if(!this.buildinsAsModule && this.buildinsRegExp)
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request = request.replace(this.buildinsRegExp, "!(webpack)");
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request = request.replace(this.indexJsRegExp, "$1");
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return request.replace(/^!|!$/, "");
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}
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}
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module.exports = RequestShortener;
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