webpack.config.js

var path = require('path')
var webpack = require('webpack')
var HtmlWebpackPlugin = require('html-webpack-plugin')

module.exports = {
    entry: './src/vue-page-visibility.vue',
    output: {
        path: path.resolve(__dirname, 'dist'),
        filename: 'vue-page-visibility-awesome.min.js',
        library: 'VuePageVisibility',
        libraryTarget: 'umd'
    },

    module: {
        rules: [
            {
                test: /\.vue$/,
                loader: 'vue-loader',
                options: {
                    loaders: {
                        js: 'babel-loader',
                        scss: 'style-loader!css-loader!postcss-loader!sass-loader'
                    }
                }
            },
            {
                test: /\.js$/,
                loader: 'babel-loader',
                exclude: /node_modules/,
            },
            {
                test: /\.html$/,
                loader: 'vue-html-loader'
            }
        ]
    },
    devtool: '#eval-source-map',
}

if (process.env.NODE_ENV === 'production') {
    // http://vuejs.github.io/vue-loader/workflow/production.html
    module.exports.plugins = [
        new webpack.DefinePlugin({
            'process.env': {
                NODE_ENV: 'production'
            }
        }),

        new webpack.optimize.UglifyJsPlugin({
            compress: {
                warnings: false
            },
        })
    ]
}