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webpack.config.js
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webpack.config.js
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/* eslint-disable no-console */
/* eslint-disable global-require */
const ENV = process.env.NODE_ENV || 'production';
const { exec } = require('child_process');
const path = require('path');
const { BundleAnalyzerPlugin } = require('webpack-bundle-analyzer');
const CopyWebpackPlugin = require('copy-webpack-plugin');
const NodemonPlugin = require('nodemon-webpack-plugin');
const PrettierPlugin = require('prettier-webpack-plugin');
const TerserPlugin = require('terser-webpack-plugin');
const NodeExternals = require('webpack-node-externals');
const pkg = require('./package.json');
const isDev = ENV === 'development';
class CustomScriptRunnerPlugin {
/**
* Constructs a new CustomScriptRunnerPlugin
* @public
* @param name The unique name of the runner
* @param command The script or command to execute
* @param stage At what stage of the pipeline should the script be executed (default: afterEmit)
*/
constructor(name, command, stage = 'afterEmit') {
this.name = name;
this.command = command;
this.stage = stage;
}
static execHandler(err, stdout, stderr) {
if (err) console.error(err);
if (stdout) process.stdout.write(stdout);
if (stderr) process.stderr.write(stderr);
}
apply(compiler) {
compiler.hooks[this.stage].tap(this.name, () => {
console.log(`>> Executing CustomScriptRunnerPlugin: (${this.stage}) - ${this.name} : ${this.command}`);
exec(this.command, CustomScriptRunnerPlugin.execHandler);
});
}
}
const plugins = [new PrettierPlugin({ configFile: `${process.cwd()}/.prettierrc.js` })];
if (!isDev) {
[
new CustomScriptRunnerPlugin('GenerateFiles', 'node ./build/generate.js'),
new CustomScriptRunnerPlugin('Documentation:html', 'documentation build -f html -o dist/docs src/main.mjs'),
new BundleAnalyzerPlugin({ openAnalyzer: false, analyzerMode: 'static' }),
new CustomScriptRunnerPlugin('RunTest', 'jest', 'beforeRun'),
new CopyWebpackPlugin([
'package.json',
'package-lock.json',
'README.md',
'LICENSE',
'CHANGELOG.md',
'examples/**',
'docs/**',
]),
].forEach((p) => plugins.push(p));
} else {
[
new NodemonPlugin({
ignore: ['node_modules/*', 'dist/*', 'coverage/*', 'docs/*'],
watch: path.resolve('./'),
ext: 'js,mjs,json,node',
}),
].forEach((p) => plugins.push(p));
}
module.exports = {
entry: path.join(__dirname, 'src', 'main'),
output: {
path: path.join(__dirname, 'dist'),
libraryExport: 'default',
libraryTarget: 'umd',
},
externals: [NodeExternals()],
target: 'node',
devtool: isDev ? 'source-map' : false,
mode: isDev ? 'development' : 'production',
watch: isDev,
watchOptions: {
aggregateTimeout: 1000,
// poll: 1000,
ignored: ['node_modules', 'coverage', 'docs', 'dist', 'src/**/__tests__/**'],
},
resolve: {
extensions: ['.js', '.mjs', '.json'],
alias: {
'@': path.resolve(__dirname, 'src'),
'@config': path.resolve(__dirname, 'src/config'),
'@modules': path.resolve(__dirname, 'src/modules'),
'@tools': path.resolve(__dirname, 'src/tools'),
},
},
optimization: {
usedExports: true,
minimize: !isDev,
minimizer: [
new TerserPlugin({
test: /\.m?js(\?.*)?$/i,
terserOptions: {
ecma: 6,
html5_comments: false,
warnings: false,
mangle: true,
module: false,
toplevel: false,
nameCache: null,
ie8: false,
keep_classnames: undefined,
keep_fnames: false,
safari10: false,
parse: {},
compress: {},
output: {
comments: false,
beautify: false,
},
},
}),
],
},
performance: { hints: false },
plugins,
module: {
rules: [
{
test: /\.m?js$/,
loader: 'eslint-loader',
enforce: 'pre',
exclude: [/node_modules/, /examples/, /docs/, /dist/, /coverage/],
include: __dirname,
options: {
fix: true,
configFile: '.eslintrc.js',
formatter: require('eslint-friendly-formatter'),
},
},
{
test: /\.m?js$/,
loader: 'babel-loader',
include: __dirname,
exclude: [/node_modules/, /examples/, /docs/, /dist/, /coverage/],
// TODO: Indicate what parts of the module contain side effects, to help with tree-shaking
// Refer: https://webpack.js.org/guides/tree-shaking/#mark-the-file-as-side-effect-free
// sideEffects: false,
},
],
},
};