65 lines
2.0 KiB
JavaScript
65 lines
2.0 KiB
JavaScript
var fs = require('fs');
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var path = require('path');
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var tmpl = require('blueimp-tmpl').tmpl;
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function HtmlWebpackPlugin(options) {
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this.options = options || {};
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}
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HtmlWebpackPlugin.prototype.apply = function(compiler) {
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var self = this;
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compiler.plugin('emit', function(compiler, callback) {
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var webpackStatsJson = compiler.getStats().toJson();
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var templateParams = {};
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templateParams.webpack = webpackStatsJson;
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templateParams.htmlWebpackPlugin = {};
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templateParams.htmlWebpackPlugin.assets = self.htmlWebpackPluginAssets(compiler, webpackStatsJson);
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templateParams.htmlWebpackPlugin.options = self.options;
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var templateFile = self.options.template;
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if (!templateFile) {
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templateFile = path.join(__dirname, 'default_index.html');
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}
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fs.readFile(templateFile, 'utf8', function(err, htmlTemplateContent) {
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if (err) {
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compiler.errors.push(new Error('HtmlWebpackPlugin: Unable to read HTML template "' + templateFile + '"'));
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} else {
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var html = tmpl(htmlTemplateContent, templateParams);
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var outputFilename = self.options.filename || 'index.html';
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compiler.assets[outputFilename] = {
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source: function() {
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return html;
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},
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size: function() {
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return html.length;
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}
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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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HtmlWebpackPlugin.prototype.htmlWebpackPluginAssets = function(compiler, webpackStatsJson) {
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var assets = {};
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for (var chunk in webpackStatsJson.assetsByChunkName) {
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var chunkValue = webpackStatsJson.assetsByChunkName[chunk];
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// Webpack outputs an array for each chunk when using sourcemaps
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if (chunkValue instanceof Array) {
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// Is the main bundle always the first element?
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chunkValue = chunkValue[0];
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}
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if (compiler.options.output.publicPath) {
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chunkValue = compiler.options.output.publicPath + chunkValue;
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}
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assets[chunk] = chunkValue;
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}
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return assets;
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};
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module.exports = HtmlWebpackPlugin;
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