overleaf/services/web/webpack.config.js

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const fs = require('fs')
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const path = require('path')
const MODULES_PATH = path.join(__dirname, '/modules')
// Generate a hash of entry points, including modules
const entryPoints = {}
if (fs.existsSync(MODULES_PATH)) {
fs.readdirSync(MODULES_PATH).reduce((acc, module) => {
const entryPath = path.join(MODULES_PATH, module, '/public/es/index.js')
if (fs.existsSync(entryPath)) {
acc[module] = entryPath
}
return acc
}, entryPoints)
}
// If no entry points are found, silently exit
if (!Object.keys(entryPoints).length) {
console.warn('No entry points found, exiting')
process.exit(0)
}
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module.exports = {
// Defines the "entry point(s)" for the application - i.e. the file which
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// bootstraps the application
entry: entryPoints,
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// Define where and how the bundle will be output to disk
// Note: webpack-dev-server does not write the bundle to disk, instead it is
// kept in memory for speed
output: {
path: path.join(__dirname, '/public/js/es'),
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filename: '[name].js',
// Output as UMD bundle (allows main JS to import with CJS, AMD or global
// style code bundles
libraryTarget: 'umd',
// Name the exported variable from output bundle
library: ['Frontend', '[name]']
},
// Define how file types are handled by webpack
module: {
rules: [{
// Pass application JS files through babel-loader, compiling to ES5
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test: /\.js$/,
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// Only compile application files (dependencies are in ES5 already)
exclude: /node_modules/,
use: [{
loader: 'babel-loader',
options: {
presets: [
['env', { modules: false }]
],
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// Configure babel-loader to cache compiled output so that subsequent
// compile runs are much faster
cacheDirectory: true
}
}]
}]
},
// TODO
// plugins: {}
}