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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const path = require("path");
const RequestShortener = require("./RequestShortener");
const ConcatSource = require("webpack-sources").ConcatSource;
const RawSource = require("webpack-sources").RawSource;
const ModuleFilenameHelpers = require("./ModuleFilenameHelpers");
const SourceMapDevToolModuleOptionsPlugin = require("./SourceMapDevToolModuleOptionsPlugin");
const basename = (name) => {
if(name.indexOf("/") < 0) return name;
return name.substr(name.lastIndexOf("/") + 1);
};
class SourceMapDevToolPlugin {
constructor(options) {
if(arguments.length > 1)
throw new Error("SourceMapDevToolPlugin only takes one argument (pass an options object)");
// TODO: remove in webpack 3
if(typeof options === "string") {
options = {
sourceMapFilename: options
};
}
if(!options) options = {};
this.sourceMapFilename = options.filename;
this.sourceMappingURLComment = options.append === false ? false : options.append || "\n//# sourceMappingURL=[url]";
this.moduleFilenameTemplate = options.moduleFilenameTemplate || "webpack:///[resourcePath]";
this.fallbackModuleFilenameTemplate = options.fallbackModuleFilenameTemplate || "webpack:///[resourcePath]?[hash]";
this.options = options;
}
apply(compiler) {
const sourceMapFilename = this.sourceMapFilename;
const sourceMappingURLComment = this.sourceMappingURLComment;
const moduleFilenameTemplate = this.moduleFilenameTemplate;
const fallbackModuleFilenameTemplate = this.fallbackModuleFilenameTemplate;
const requestShortener = new RequestShortener(compiler.context);
const options = this.options;
options.test = options.test || /\.(js|css)($|\?)/i;
compiler.plugin("compilation", compilation => {
new SourceMapDevToolModuleOptionsPlugin(options).apply(compilation);
compilation.plugin("after-optimize-chunk-assets", function(chunks) {
let allModules = [];
let allModuleFilenames = [];
const tasks = [];
chunks.forEach(function(chunk) {
chunk.files.filter(ModuleFilenameHelpers.matchObject.bind(undefined, options)).map(function(file) {
const asset = compilation.assets[file];
if(asset.__SourceMapDevToolFile === file && asset.__SourceMapDevToolData) {
const data = asset.__SourceMapDevToolData;
for(const cachedFile in data) {
compilation.assets[cachedFile] = data[cachedFile];
if(cachedFile !== file)
chunk.files.push(cachedFile);
}
return;
}
let source, sourceMap;
if(asset.sourceAndMap) {
const sourceAndMap = asset.sourceAndMap(options);
sourceMap = sourceAndMap.map;
source = sourceAndMap.source;
} else {
sourceMap = asset.map(options);
source = asset.source();
}
if(sourceMap) {
return {
chunk,
file,
asset,
source,
sourceMap
};
}
}).filter(Boolean).map(task => {
const modules = task.sourceMap.sources.map(source => {
const module = compilation.findModule(source);
return module || source;
});
const moduleFilenames = modules.map(module => ModuleFilenameHelpers.createFilename(module, moduleFilenameTemplate, requestShortener));
task.modules = modules;
task.moduleFilenames = moduleFilenames;
return task;
}).forEach(task => {
allModules = allModules.concat(task.modules);
allModuleFilenames = allModuleFilenames.concat(task.moduleFilenames);
tasks.push(task);
});
});
allModuleFilenames = ModuleFilenameHelpers.replaceDuplicates(allModuleFilenames, (filename, i) => ModuleFilenameHelpers.createFilename(allModules[i], fallbackModuleFilenameTemplate, requestShortener), (ai, bi) => {
let a = allModules[ai];
let b = allModules[bi];
a = !a ? "" : typeof a === "string" ? a : a.identifier();
b = !b ? "" : typeof b === "string" ? b : b.identifier();
return a.length - b.length;
});
allModuleFilenames = ModuleFilenameHelpers.replaceDuplicates(allModuleFilenames, (filename, i, n) => {
for(let j = 0; j < n; j++)
filename += "*";
return filename;
});
tasks.forEach(task => {
task.moduleFilenames = allModuleFilenames.slice(0, task.moduleFilenames.length);
allModuleFilenames = allModuleFilenames.slice(task.moduleFilenames.length);
});
tasks.forEach(function(task) {
const chunk = task.chunk;
const file = task.file;
const asset = task.asset;
const sourceMap = task.sourceMap;
const source = task.source;
const moduleFilenames = task.moduleFilenames;
const modules = task.modules;
sourceMap.sources = moduleFilenames;
if(sourceMap.sourcesContent && !options.noSources) {
sourceMap.sourcesContent = sourceMap.sourcesContent.map((content, i) => `${content}\n\n\n${ModuleFilenameHelpers.createFooter(modules[i], requestShortener)}`);
} else {
sourceMap.sourcesContent = undefined;
}
sourceMap.sourceRoot = options.sourceRoot || "";
sourceMap.file = file;
asset.__SourceMapDevToolFile = file;
asset.__SourceMapDevToolData = {};
let currentSourceMappingURLComment = sourceMappingURLComment;
if(currentSourceMappingURLComment !== false && /\.css($|\?)/i.test(file)) {
currentSourceMappingURLComment = currentSourceMappingURLComment.replace(/^\n\/\/(.*)$/, "\n/*$1*/");
}
if(sourceMapFilename) {
let filename = file;
let query = "";
const idx = filename.indexOf("?");
if(idx >= 0) {
query = filename.substr(idx);
filename = filename.substr(0, idx);
}
const sourceMapFile = compilation.getPath(sourceMapFilename, {
chunk,
filename,
query,
basename: basename(filename)
});
const sourceMapUrl = path.relative(path.dirname(file), sourceMapFile).replace(/\\/g, "/");
if(currentSourceMappingURLComment !== false) {
asset.__SourceMapDevToolData[file] = compilation.assets[file] = new ConcatSource(new RawSource(source), currentSourceMappingURLComment.replace(/\[url\]/g, sourceMapUrl));
}
asset.__SourceMapDevToolData[sourceMapFile] = compilation.assets[sourceMapFile] = new RawSource(JSON.stringify(sourceMap));
chunk.files.push(sourceMapFile);
} else {
asset.__SourceMapDevToolData[file] = compilation.assets[file] = new ConcatSource(new RawSource(source), currentSourceMappingURLComment
.replace(/\[map\]/g, () => JSON.stringify(sourceMap))
.replace(/\[url\]/g, () => `data:application/json;charset=utf-8;base64,${new Buffer(JSON.stringify(sourceMap), "utf-8").toString("base64")}`) // eslint-disable-line
);
}
});
});
});
}
}
module.exports = SourceMapDevToolPlugin;
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