mirror of https://github.com/webpack/webpack.git
98 lines
4.3 KiB
JavaScript
98 lines
4.3 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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var path = require("path");
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var RequestShortener = require("./RequestShortener");
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var Template = require("./Template");
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var ConcatSource = require("webpack-core/lib/ConcatSource");
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var RawSource = require("webpack-core/lib/RawSource");
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var ModuleFilenameHelpers = require("./ModuleFilenameHelpers");
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function SourceMapDevToolPlugin(sourceMapFilename, sourceMappingURLComment, moduleFilenameTemplate, fallbackModuleFilenameTemplate) {
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this.sourceMapFilename = sourceMapFilename;
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this.sourceMappingURLComment = sourceMappingURLComment || "\n//# sourceMappingURL=[url]";
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this.moduleFilenameTemplate = moduleFilenameTemplate || "webpack:///[resourcePath]";
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this.fallbackModuleFilenameTemplate = fallbackModuleFilenameTemplate || "webpack:///[resourcePath]?[hash]";
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}
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module.exports = SourceMapDevToolPlugin;
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SourceMapDevToolPlugin.prototype.apply = function(compiler) {
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var sourceMapFilename = this.sourceMapFilename;
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var sourceMappingURLComment = this.sourceMappingURLComment;
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var moduleFilenameTemplate = this.moduleFilenameTemplate;
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var fallbackModuleFilenameTemplate = this.fallbackModuleFilenameTemplate;
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var requestShortener = new RequestShortener(compiler.context);
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compiler.plugin("compilation", function(compilation) {
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compilation.plugin("build-module", function(module) {
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module.useSourceMap = true;
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});
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compilation.plugin("after-optimize-chunk-assets", function(chunks) {
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chunks.forEach(function(chunk) {
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chunk.files.slice().forEach(function(file) {
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var asset = this.assets[file];
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if(asset.__SourceMapDevTool_Data) {
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var data = asset.__SourceMapDevTool_Data;
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for(var file in data) {
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this.assets[file] = data[file];
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}
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return;
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}
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var sourceMap = asset.map();
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if(sourceMap) {
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var modules = sourceMap.sources.map(function(source) {
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var module = compilation.findModule(source);
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return module || source;
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});
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var moduleFilenames = modules.map(function(module) {
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return ModuleFilenameHelpers.createFilename(module, moduleFilenameTemplate, requestShortener);
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});
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moduleFilenames = ModuleFilenameHelpers.replaceDuplicates(moduleFilenames, function(filename, i) {
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return ModuleFilenameHelpers.createFilename(modules[i], fallbackModuleFilenameTemplate, requestShortener);
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});
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moduleFilenames = ModuleFilenameHelpers.replaceDuplicates(moduleFilenames, function(filename, i, n) {
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for(var j = 0; j < n; j++)
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filename += "*";
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return filename;
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});
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sourceMap.sources = moduleFilenames;
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if(sourceMap.sourcesContent) {
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sourceMap.sourcesContent = sourceMap.sourcesContent.map(function(content, i) {
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return content + "\n\n\n" + ModuleFilenameHelpers.createFooter(modules[i], requestShortener);
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});
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}
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sourceMap.sourceRoot = "";
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sourceMap.file = file;
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asset.__SourceMapDevTool_Data = {};
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if(sourceMapFilename) {
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var filename = file, query = "";
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var idx = filename.indexOf("?");
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if(idx >= 0) {
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query = filename.substr(idx);
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filename = filename.substr(0, idx);
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}
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var sourceMapFile = sourceMapFilename
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.replace(Template.REGEXP_FILE, filename)
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.replace(Template.REGEXP_QUERY, query)
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.replace(Template.REGEXP_FILEBASE, basename(filename))
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.replace(Template.REGEXP_HASH, this.hash)
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.replace(Template.REGEXP_ID, chunk.id);
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var sourceMapUrl = path.relative(path.dirname(file), sourceMapFile).replace(/\\/g, "/");
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asset.__SourceMapDevTool_Data[file] = this.assets[file] = new ConcatSource(asset, sourceMappingURLComment.replace(/\[url\]/g, sourceMapUrl));
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asset.__SourceMapDevTool_Data[sourceMapFile] = this.assets[sourceMapFile] = new RawSource(JSON.stringify(sourceMap));
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chunk.files.push(sourceMapFile);
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} else {
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asset.__SourceMapDevTool_Data[file] = this.assets[file] = new ConcatSource(asset, sourceMappingURLComment.replace(/\[url\]/g, "data:application/json;base64," + new Buffer(JSON.stringify(sourceMap)).toString("base64")));
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}
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}
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}, this);
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}, this);
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});
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});
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};
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function basename(name) {
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if(name.indexOf("/") < 0) return name;
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return name.substr(name.lastIndexOf("/")+1);
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}
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