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webpack.config.js
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webpack.config.js
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/* global require, module, process, __dirname */
const path = require('path')
const webpack = require('webpack')
const HtmlWebpackPlugin = require('html-webpack-plugin')
const HtmlWebpackHarddiskPlugin = require('html-webpack-harddisk-plugin')
const AntdDayjsWebpackPlugin = require('antd-dayjs-webpack-plugin')
const MonacoWebpackPlugin = require('monaco-editor-webpack-plugin')
const webpackDevServerHost = process.env.WEBPACK_HOT_RELOAD_HOST || '127.0.0.1'
const webpackDevServerFrontendAddr = webpackDevServerHost === '0.0.0.0' ? '127.0.0.1' : webpackDevServerHost
function createEntry(entry) {
const commonLoadersForSassAndLess = [
{
loader: 'style-loader',
},
{
// This loader resolves url() and @imports inside CSS
loader: 'css-loader',
},
{
// Then we apply postCSS fixes like autoprefixer and minifying
loader: 'postcss-loader',
},
]
return {
name: entry,
mode: process.env.NODE_ENV === 'production' ? 'production' : 'development',
devtool:
process.env.GENERATE_SOURCEMAP === 'false'
? false
: process.env.NODE_ENV === 'production'
? 'source-map'
: 'inline-source-map',
entry: {
[entry]: entry === 'main' || entry === 'cypress' ? './frontend/src/index.tsx' : null,
},
watchOptions: {
ignored: /node_modules/,
},
output: {
path: path.resolve(__dirname, 'frontend', 'dist'),
chunkFilename: '[name].[contenthash].js',
publicPath: process.env.JS_URL
? `${process.env.JS_URL}${process.env.JS_URL.endsWith('/') ? '' : '/'}static/`
: process.env.NODE_ENV === 'production'
? '/static/'
: `http${process.env.LOCAL_HTTPS ? 's' : ''}://${webpackDevServerFrontendAddr}:8234/static/`,
},
resolve: {
extensions: ['.js', '.jsx', '.ts', '.tsx'],
alias: {
'~': path.resolve(__dirname, 'frontend', 'src'),
lib: path.resolve(__dirname, 'frontend', 'src', 'lib'),
scenes: path.resolve(__dirname, 'frontend', 'src', 'scenes'),
'@posthog/apps-common': path.resolve(__dirname, 'frontend', '@posthog', 'apps-common', 'src'),
'@posthog/lemon-ui': path.resolve(__dirname, 'frontend', '@posthog', 'lemon-ui', 'src'),
'@posthog/ee/exports': [
path.resolve(__dirname, 'ee', 'frontend', 'exports'),
path.resolve(__dirname, 'frontend', '@posthog', 'ee', 'exports'),
],
storybook: path.resolve(__dirname, '.storybook'),
types: path.resolve(__dirname, 'frontend', 'types'),
public: path.resolve(__dirname, 'frontend', 'public'),
cypress: path.resolve(__dirname, 'cypress'),
process: 'process/browser',
},
},
module: {
rules: [
{
test: /\.[jt]sx?$/,
exclude: /(node_modules)/,
use: {
loader: 'babel-loader',
},
},
{
// Apply rule for .sass, .scss or .css files
test: /\.(sa|sc|c)ss$/,
// Set loaders to transform files.
// Loaders are applying from right to left(!)
// The first loader will be applied after others
use: [
...commonLoadersForSassAndLess,
{
// First we transform SASS to standard CSS
loader: 'sass-loader',
options: {
implementation: require('sass'),
},
},
].filter((a) => a),
},
{
// Apply rule for less files (used to import and override AntD)
test: /\.(less)$/,
use: [
...commonLoadersForSassAndLess,
{
loader: 'less-loader', // compiles Less to CSS
options: {
lessOptions: {
javascriptEnabled: true,
},
},
},
],
},
{
// Now we apply rule for images
test: /\.(png|jpe?g|gif|svg|lottie)$/,
use: [
{
// Using file-loader for these files
loader: 'file-loader',
// In options we can set different things like format
// and directory to save
options: {
name: '[name].[contenthash].[ext]',
outputPath: 'images',
},
},
],
},
{
// Apply rule for fonts files
test: /\.(woff|woff2|ttf|otf|eot)$/,
use: [
{
// Using file-loader too
loader: 'file-loader',
options: {
name: '[name].[contenthash].[ext]',
outputPath: 'fonts',
},
},
],
},
{
// Apply rule for sound files
test: /\.(mp3)$/,
use: [
{
// Using file-loader too
loader: 'file-loader',
options: {
name: '[name].[contenthash].[ext]',
outputPath: 'sounds',
},
},
],
},
// probably only need this because we're using webpack v4
{
test: /monaco-editor\/.*\.m?js/,
loader: 'babel-loader',
},
],
},
// add devServer config only to 'main' entry
...(entry === 'main'
? {
devServer: {
contentBase: path.join(__dirname, 'frontend', 'dist'),
hot: true,
host: webpackDevServerHost,
port: 8234,
stats: 'minimal',
disableHostCheck: !!process.env.LOCAL_HTTPS,
public: process.env.JS_URL
? new URL(process.env.JS_URL).host
: `${webpackDevServerFrontendAddr}:8234`,
headers: {
'Access-Control-Allow-Origin': '*',
'Access-Control-Allow-Headers': '*',
},
},
}
: {}),
plugins: [
new MonacoWebpackPlugin(),
new AntdDayjsWebpackPlugin(),
// common plugins for all entrypoints
].concat(
entry === 'main'
? [
// we need these only once per build
new HtmlWebpackPlugin({
alwaysWriteToDisk: true,
title: 'PostHog',
template: path.join(__dirname, 'frontend', 'src', 'index.html'),
}),
new HtmlWebpackPlugin({
alwaysWriteToDisk: true,
title: 'PostHog',
filename: 'layout.html',
inject: false,
template: path.join(__dirname, 'frontend', 'src', 'layout.ejs'),
}),
new HtmlWebpackHarddiskPlugin(),
]
: entry === 'cypress'
? [
new HtmlWebpackHarddiskPlugin(),
new webpack.ProvidePlugin({
process: 'process/browser',
}),
]
: []
),
}
}
// main = app
module.exports = () => [createEntry('main')]
module.exports.createEntry = createEntry