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- /*
- MIT License http://www.opensource.org/licenses/mit-license.php
- Author Tobias Koppers @sokra
- */
- "use strict";
-
- var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
-
- var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
-
- function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
- var SourceMapConsumer = require("source-map").SourceMapConsumer;
- var SourceMapSource = require("webpack-sources").SourceMapSource;
- var RawSource = require("webpack-sources").RawSource;
- var ConcatSource = require("webpack-sources").ConcatSource;
- var RequestShortener = require("webpack/lib/RequestShortener");
- var ModuleFilenameHelpers = require("webpack/lib/ModuleFilenameHelpers");
- var uglify = require("uglify-js");
-
- var UglifyJsPlugin = function () {
- function UglifyJsPlugin(options) {
- _classCallCheck(this, UglifyJsPlugin);
-
- if ((typeof options === "undefined" ? "undefined" : _typeof(options)) !== "object" || Array.isArray(options)) options = {};
- if (typeof options.compressor !== "undefined") options.compress = options.compressor;
- this.options = options;
- }
-
- _createClass(UglifyJsPlugin, [{
- key: "apply",
- value: function apply(compiler) {
- var options = this.options;
- options.test = options.test || /\.js($|\?)/i;
- var warningsFilter = options.warningsFilter || function () {
- return true;
- };
-
- var requestShortener = new RequestShortener(compiler.context);
- compiler.plugin("compilation", function (compilation) {
- if (options.sourceMap) {
- compilation.plugin("build-module", function (module) {
- // to get detailed location info about errors
- module.useSourceMap = true;
- });
- }
- compilation.plugin("optimize-chunk-assets", function (chunks, callback) {
- var files = [];
- chunks.forEach(function (chunk) {
- return files.push.apply(files, chunk.files);
- });
- files.push.apply(files, compilation.additionalChunkAssets);
- var filteredFiles = files.filter(ModuleFilenameHelpers.matchObject.bind(undefined, options));
- filteredFiles.forEach(function (file) {
- var oldWarnFunction = uglify.AST_Node.warn_function;
- var warnings = [];
- var sourceMap = void 0;
- try {
- var asset = compilation.assets[file];
- if (asset.__UglifyJsPlugin) {
- compilation.assets[file] = asset.__UglifyJsPlugin;
- return;
- }
- var input = void 0;
- var inputSourceMap = void 0;
- if (options.sourceMap) {
- if (asset.sourceAndMap) {
- var sourceAndMap = asset.sourceAndMap();
- inputSourceMap = sourceAndMap.map;
- input = sourceAndMap.source;
- } else {
- inputSourceMap = asset.map();
- input = asset.source();
- }
- sourceMap = new SourceMapConsumer(inputSourceMap);
- uglify.AST_Node.warn_function = function (warning) {
- // eslint-disable-line camelcase
- var match = /\[.+:([0-9]+),([0-9]+)\]/.exec(warning);
- var line = +match[1];
- var column = +match[2];
- var original = sourceMap.originalPositionFor({
- line: line,
- column: column
- });
- if (!original || !original.source || original.source === file) return;
- if (!warningsFilter(original.source)) return;
- warnings.push(warning.replace(/\[.+:([0-9]+),([0-9]+)\]/, "") + "[" + requestShortener.shorten(original.source) + ":" + original.line + "," + original.column + "]");
- };
- } else {
- input = asset.source();
- uglify.AST_Node.warn_function = function (warning) {
- // eslint-disable-line camelcase
- warnings.push(warning);
- };
- }
- uglify.base54.reset();
- var ast = uglify.parse(input, {
- filename: file
- });
- if (options.compress !== false) {
- ast.figure_out_scope();
- var compress = uglify.Compressor(options.compress || {
- warnings: false
- }); // eslint-disable-line new-cap
- ast = compress.compress(ast);
- }
- if (options.mangle !== false) {
- ast.figure_out_scope(options.mangle || {});
- ast.compute_char_frequency(options.mangle || {});
- ast.mangle_names(options.mangle || {});
- if (options.mangle && options.mangle.props) {
- uglify.mangle_properties(ast, options.mangle.props);
- }
- }
- var output = {};
- output.comments = Object.prototype.hasOwnProperty.call(options, "comments") ? options.comments : /^\**!|@preserve|@license/;
- output.beautify = options.beautify;
- for (var k in options.output) {
- output[k] = options.output[k];
- }
- var extractedComments = [];
- if (options.extractComments) {
- var condition = {};
- if (typeof options.extractComments === "string" || options.extractComments instanceof RegExp) {
- // extractComments specifies the extract condition and output.comments specifies the preserve condition
- condition.preserve = output.comments;
- condition.extract = options.extractComments;
- } else if (Object.prototype.hasOwnProperty.call(options.extractComments, "condition")) {
- // Extract condition is given in extractComments.condition
- condition.preserve = output.comments;
- condition.extract = options.extractComments.condition;
- } else {
- // No extract condition is given. Extract comments that match output.comments instead of preserving them
- condition.preserve = false;
- condition.extract = output.comments;
- }
-
- // Ensure that both conditions are functions
- ["preserve", "extract"].forEach(function (key) {
- switch (_typeof(condition[key])) {
- case "boolean":
- var b = condition[key];
- condition[key] = function () {
- return b;
- };
- break;
- case "function":
- break;
- case "string":
- if (condition[key] === "all") {
- condition[key] = function () {
- return true;
- };
- break;
- }
- var regex = new RegExp(condition[key]);
- condition[key] = function (astNode, comment) {
- return regex.test(comment.value);
- };
- break;
- default:
- regex = condition[key];
- condition[key] = function (astNode, comment) {
- return regex.test(comment.value);
- };
- }
- });
-
- // Redefine the comments function to extract and preserve
- // comments according to the two conditions
- output.comments = function (astNode, comment) {
- if (condition.extract(astNode, comment)) {
- extractedComments.push(comment.type === "comment2" ? "/*" + comment.value + "*/" : "//" + comment.value);
- }
- return condition.preserve(astNode, comment);
- };
- }
- var map = void 0;
- if (options.sourceMap) {
- map = uglify.SourceMap({ // eslint-disable-line new-cap
- file: file,
- root: ""
- });
- output.source_map = map; // eslint-disable-line camelcase
- }
- var stream = uglify.OutputStream(output); // eslint-disable-line new-cap
- ast.print(stream);
- if (map) map = map + "";
- var stringifiedStream = stream + "";
- var outputSource = map ? new SourceMapSource(stringifiedStream, file, JSON.parse(map), input, inputSourceMap) : new RawSource(stringifiedStream);
- if (extractedComments.length > 0) {
- var commentsFile = options.extractComments.filename || file + ".LICENSE";
- if (typeof commentsFile === "function") {
- commentsFile = commentsFile(file);
- }
-
- // Write extracted comments to commentsFile
- var commentsSource = new RawSource(extractedComments.join("\n\n") + "\n");
- if (commentsFile in compilation.assets) {
- // commentsFile already exists, append new comments...
- if (compilation.assets[commentsFile] instanceof ConcatSource) {
- compilation.assets[commentsFile].add("\n");
- compilation.assets[commentsFile].add(commentsSource);
- } else {
- compilation.assets[commentsFile] = new ConcatSource(compilation.assets[commentsFile], "\n", commentsSource);
- }
- } else {
- compilation.assets[commentsFile] = commentsSource;
- }
-
- // Add a banner to the original file
- if (options.extractComments.banner !== false) {
- var banner = options.extractComments.banner || "For license information please see " + commentsFile;
- if (typeof banner === "function") {
- banner = banner(commentsFile);
- }
- if (banner) {
- outputSource = new ConcatSource("/*! " + banner + " */\n", outputSource);
- }
- }
- }
- asset.__UglifyJsPlugin = compilation.assets[file] = outputSource;
- if (warnings.length > 0) {
- compilation.warnings.push(new Error(file + " from UglifyJs\n" + warnings.join("\n")));
- }
- } catch (err) {
- if (err.line) {
- var original = sourceMap && sourceMap.originalPositionFor({
- line: err.line,
- column: err.col
- });
- if (original && original.source) {
- compilation.errors.push(new Error(file + " from UglifyJs\n" + err.message + " [" + requestShortener.shorten(original.source) + ":" + original.line + "," + original.column + "][" + file + ":" + err.line + "," + err.col + "]"));
- } else {
- compilation.errors.push(new Error(file + " from UglifyJs\n" + err.message + " [" + file + ":" + err.line + "," + err.col + "]"));
- }
- } else if (err.msg) {
- compilation.errors.push(new Error(file + " from UglifyJs\n" + err.msg));
- } else compilation.errors.push(new Error(file + " from UglifyJs\n" + err.stack));
- } finally {
- uglify.AST_Node.warn_function = oldWarnFunction; // eslint-disable-line camelcase
- }
- });
- callback();
- });
- });
- }
- }]);
-
- return UglifyJsPlugin;
- }();
-
- module.exports = UglifyJsPlugin;
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