mirror of https://github.com/webpack/webpack.git
65 lines
2.4 KiB
JavaScript
65 lines
2.4 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 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 base64Encode = require("base64-encode");
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function SourceMapDevToolPlugin(context, sourceMapFilename) {
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this.context = context;
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this.sourceMapFilename = sourceMapFilename;
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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 requestShortener = new RequestShortener(this.context);
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compiler.plugin("compilation", function(compilation) {
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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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var sourceMap = asset.map();
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if(sourceMap) {
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for(var i = 0; i < sourceMap.sources.length; i++) {
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var source = sourceMap.sources[i];
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var str;
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var module = compilation.findModule(source);
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if(module)
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str = module.readableIdentifier(requestShortener);
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else
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str = requestShortener.shorten(source);
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while(str.indexOf("?") >= 0 && str.indexOf("?") < str.lastIndexOf("!"))
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str = str.replace(/\?/, "(query)");
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var idx;
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while((idx = sourceMap.sources.indexOf(str) >= 0) && (idx < i)) {
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str += "*";
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}
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sourceMap.sources[i] = str;
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}
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sourceMap.sourceRoot = "webpack-module://";
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if(sourceMapFilename) {
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var sourceMapFile = sourceMapFilename
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.replace(Template.REGEXP_FILE, file)
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.replace(Template.REGEXP_FILEBASE, basename(file))
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.replace(Template.REGEXP_HASH, this.hash)
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.replace(Template.REGEXP_ID, chunk.id);
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this.assets[file] = new ConcatSource(asset, "\n/*\n//@ sourceMappingURL=" + sourceMapFile + "\n*/");
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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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this.assets[file] = new ConcatSource(asset, "\n/*\n//@ sourceMappingURL=data:application/json;base64," + base64Encode(JSON.stringify(sourceMap)) + "\n*/");
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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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} |