I'm new to webpack, and I need a hand in setting up to generate sourcemaps. I'm running webpack serve from the command line, which compiles successfully. But I really need sourcemaps. This is my webpack.config.js.
var webpack = require('webpack');
module.exports = {
output: {
filename: 'main.js',
publicPath: '/assets/'
},
cache: true,
debug: true,
devtool: true,
entry: [
'webpack/hot/only-dev-server',
'./src/components/main.js'
],
stats: {
colors: true,
reasons: true
},
resolve: {
extensions: ['', '.js', '.jsx'],
alias: {
'styles': __dirname + '/src/styles',
'mixins': __dirname + '/src/mixins',
'components': __dirname + '/src/components/',
'stores': __dirname + '/src/stores/',
'actions': __dirname + '/src/actions/'
}
},
module: {
preLoaders: [{
test: /\.(js|jsx)$/,
exclude: /node_modules/,
loader: 'jsxhint'
}],
loaders: [{
test: /\.(js|jsx)$/,
exclude: /node_modules/,
loader: 'react-hot!babel-loader'
}, {
test: /\.sass/,
loader: 'style-loader!css-loader!sass-loader?outputStyle=expanded&indentedSyntax'
}, {
test: /\.scss/,
loader: 'style-loader!css!sass'
}, {
test: /\.(png|jpg|woff|woff2)$/,
loader: 'url-loader?limit=8192'
}]
},
plugins: [
new webpack.HotModuleReplacementPlugin(),
new webpack.NoErrorsPlugin()
]
};
I'm really new to webpack, and looking though the docs hasn't really helped as I'm not sure what this problem is specific to.
Maybe someone else has this problem at one point. If you use the UglifyJsPlugin in webpack 2 you need to explicitly specify the sourceMap flag. For example:
new webpack.optimize.UglifyJsPlugin({ sourceMap: true })
Minimal webpack config for jsx with sourcemaps:
var path = require('path');
var webpack = require('webpack');
module.exports = {
entry: `./src/index.jsx` ,
output: {
path: path.resolve(__dirname,"build"),
filename: "bundle.js"
},
devtool: 'eval-source-map',
module: {
loaders: [
{
test: /.jsx?$/,
loader: 'babel-loader',
exclude: /node_modules/,
query: {
presets: ['es2015', 'react']
}
}
]
},
};
Running it:
Jozsefs-MBP:react-webpack-babel joco$ webpack -d
Hash: c75d5fb365018ed3786b
Version: webpack 1.13.2
Time: 3826ms
Asset Size Chunks Chunk Names
bundle.js 1.5 MB 0 [emitted] main
bundle.js.map 1.72 MB 0 [emitted] main
+ 221 hidden modules
Jozsefs-MBP:react-webpack-babel joco$