mirror of https://github.com/webpack/webpack.git
41 lines
1.3 KiB
JavaScript
41 lines
1.3 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 ConcatSource = require("webpack-sources").ConcatSource;
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var ModuleFilenameHelpers = require("./ModuleFilenameHelpers");
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function wrapComment(str) {
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if(str.indexOf("\n") < 0) return "/*! " + str + " */";
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return "/*!\n * " + str.split("\n").join("\n * ") + "\n */";
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}
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function BannerPlugin(options) {
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if(arguments.length > 1)
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throw new Error("BannerPlugin only takes one argument (pass an options object)");
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if(typeof options === "string")
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options = {
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banner: options
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};
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this.options = options || {};
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this.banner = this.options.raw ? options.banner : wrapComment(options.banner);
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}
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module.exports = BannerPlugin;
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BannerPlugin.prototype.apply = function(compiler) {
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var options = this.options;
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var banner = this.banner;
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compiler.plugin("compilation", function(compilation) {
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compilation.plugin("optimize-chunk-assets", function(chunks, callback) {
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chunks.forEach(function(chunk) {
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if(options.entryOnly && !chunk.isInitial()) return;
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chunk.files.filter(ModuleFilenameHelpers.matchObject.bind(undefined, options)).forEach(function(file) {
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compilation.assets[file] = new ConcatSource(banner, "\n", compilation.assets[file]);
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});
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});
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callback();
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});
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});
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};
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