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webpack.config.js
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webpack.config.js
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const UglifyJsPlugin = require('uglifyjs-webpack-plugin');
const CleanWebpackPlugin = require('clean-webpack-plugin');
const Webpack = require('webpack');
const DEV = 'development';
const PROD = 'production';
const ProdUglifyOpt = {
warnings: false,
output: {
comments: false,
},
compress: {
drop_debugger: true,
drop_console: true,
}
};
module.exports = (env, argv) => ({
entry: './src/index.js',
output: {
filename: argv.mode === DEV ? 'i.js' : 'i.min.js',
path: __dirname + '/dist'
},
module: {
rules: [
{
parser: {
amd: false
}
},
{
test: /\.js$/,
exclude: /node_modules/,
loader: 'babel-loader'
}
]
},
optimization: {
minimizer: [
new UglifyJsPlugin({
sourceMap: true,
uglifyOptions: argv.mode === DEV ? {} : ProdUglifyOpt
}),
new Webpack.BannerPlugin({
banner: `Build timestamp: ${new Date().toString()}\nCommit hash: ${process.env.COMMIT_HASH}`
})
]
},
devtool: argv.mode === DEV ? 'source-map' : false,
plugins: [
new Webpack.DefinePlugin({
'process.env.COMMIT_HASH': JSON.stringify(process.env.COMMIT_HASH)
}),
new CleanWebpackPlugin(['dist'])
],
watch: argv.watch === 'true',
performance: {
hints: false
}
});