✨ Add umd module gereation for npm package

Signed-off-by: Jakub Juszczak <netghost03@gmail.com>

build/webpack.prod.conf.js

@@ -1,102 +1,32 @@
-var path = require('path')
-var config = require('../config')
-var utils = require('./utils')
-var webpack = require('webpack')
-var merge = require('webpack-merge')
-var baseWebpackConfig = require('./webpack.base.conf')
-var ExtractTextPlugin = require('extract-text-webpack-plugin')
-var HtmlWebpackPlugin = require('html-webpack-plugin')
-var env = process.env.NODE_ENV === 'testing'
-  ? require('../config/test.env')
-  : config.build.env
+const webpack = require('webpack')
+const base = require('./webpack.base.conf')
+const config = require('../config')
 
-var webpackConfig = merge(baseWebpackConfig, {
-  module: {
-    loaders: utils.styleLoaders({ sourceMap: config.build.productionSourceMap, extract: true })
-  },
-  devtool: config.build.productionSourceMap ? '#source-map' : false,
-  output: {
-    path: config.build.assetsRoot,
-    filename: utils.assetsPath('js/[name].[chunkhash].js'),
-    chunkFilename: utils.assetsPath('js/[id].[chunkhash].js')
-  },
-  vue: {
-    loaders: utils.cssLoaders({
-      sourceMap: config.build.productionSourceMap,
-      extract: true
-    })
-  },
-  plugins: [
-    // http://vuejs.github.io/vue-loader/workflow/production.html
-    new webpack.DefinePlugin({
-      'process.env': env
-    }),
-    new webpack.optimize.UglifyJsPlugin({
-      compress: {
-        warnings: false
-      }
-    }),
-    new webpack.optimize.OccurenceOrderPlugin(),
-    // extract css into its own file
-    new ExtractTextPlugin(utils.assetsPath('css/[name].[contenthash].css')),
-    // generate dist index.html with correct asset hash for caching.
-    // you can customize output by editing /index.html
-    // see https://github.com/ampedandwired/html-webpack-plugin
-    new HtmlWebpackPlugin({
-      filename: process.env.NODE_ENV === 'testing'
-        ? 'index.html'
-        : config.build.index,
-      template: 'index.html',
-      inject: true,
-      minify: {
-        removeComments: true,
-        collapseWhitespace: true,
-        removeAttributeQuotes: true
-        // more options:
-        // https://github.com/kangax/html-minifier#options-quick-reference
-      },
-      // necessary to consistently work with multiple chunks via CommonsChunkPlugin
-      chunksSortMode: 'dependency'
-    }),
-    // split vendor js into its own file
-    new webpack.optimize.CommonsChunkPlugin({
-      name: 'vendor',
-      minChunks: function (module, count) {
-        // any required modules inside node_modules are extracted to vendor
-        return (
-          module.resource &&
-          /\.js$/.test(module.resource) &&
-          module.resource.indexOf(
-            path.join(__dirname, '../node_modules')
-          ) === 0
-        )
-      }
-    }),
-    // extract webpack runtime and module manifest to its own file in order to
-    // prevent vendor hash from being updated whenever app bundle is updated
-    new webpack.optimize.CommonsChunkPlugin({
-      name: 'manifest',
-      chunks: ['vendor']
-    })
-  ]
-})
-
-if (config.build.productionGzip) {
-  var CompressionWebpackPlugin = require('compression-webpack-plugin')
-
-  webpackConfig.plugins.push(
-    new CompressionWebpackPlugin({
-      asset: '[path].gz[query]',
-      algorithm: 'gzip',
-      test: new RegExp(
-        '\\.(' +
-        config.build.productionGzipExtensions.join('|') +
-        ')$'
-      ),
-      threshold: 10240,
-      minRatio: 0.8
-    })
-  )
+base.entry = {
+  lib: './src/index.js'
 }
 
+base.output = {
+  path: config.build.assetsRoot,
+  publicPath: config.build.assetsPublicPath,
+  filename: 'vue-chartjs.js',
+  library: 'VueChartJs',
+  libraryTarget: 'umd'
+}
+
+var webpackConfig = Object.assign({}, base)
+
+webpackConfig.devtool = '#source-map'
+webpackConfig.plugins = (webpackConfig.plugins || []).concat([
+  new webpack.DefinePlugin({
+    'process.env': {
+      NODE_ENV: '"production"'
+    }
+  }),
+  new webpack.optimize.UglifyJsPlugin({
+    compress: { warnings: false }
+  }),
+  new webpack.optimize.OccurenceOrderPlugin(),
+])
+
 module.exports = webpackConfig