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webpack.config.js
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const path = require('path');
const webpack = require('webpack');
const TerserPlugin = require('terser-webpack-plugin');
const Constants = require('./src/constants.js');
// When adding any global constants via `webpack.definePlugin`,
// make sure to add its type definition in `flow-typed/mercurywm.js`
// so flow will understand it.
const config = {
entry: {
main: './src/mercury/index.jsx',
background: './src/background/index.js',
render: './src/render/index.js'
},
output: {
path: path.resolve(__dirname, 'build'),
filename: '[name].js'
},
module: {
rules: [
{
test: /\.jsx?$/,
exclude: /node_modules/,
use: {
loader: 'babel-loader',
options: {
presets: [
[
'@babel/preset-env',
{
targets: '>1%, not ie 11, not op_mini all'
}
],
'@babel/preset-react',
'@babel/preset-flow'
],
plugins: ['@babel/plugin-proposal-class-properties']
}
}
}
]
},
plugins: [
new webpack.DefinePlugin(
Object.keys(Constants).reduce(
(acc, key) =>
Object.assign(acc, {
['Constants.' + key]: JSON.stringify(Constants[key])
}),
{}
)
)
],
stats: {
colors: true
},
resolve: {
modules: [path.resolve('./node_modules'), path.resolve('./src')]
}
};
module.exports = (env, argv) => {
config.plugins.push(
new webpack.DefinePlugin({
PRODUCTION: JSON.stringify(argv.mode === 'production')
})
);
if (argv.mode === 'production') {
config.mode = 'production';
config.optimization = {
minimizer: [
new TerserPlugin({
extractComments: false,
terserOptions: {
compress: {
drop_console: true
}
}
})
]
};
} else {
config.mode = 'development';
config.devtool = '#cheap-module-source-map';
config.plugins.push(
new webpack.DefinePlugin({
'process.env.UPDEEP_MODE': JSON.stringify('dangerously_never_freeze')
})
);
}
return config;
};