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webpack.config.js
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webpack.config.js
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const path = require('path');
const TerserPlugin = require('terser-webpack-plugin');
const webpack = require('webpack');
const WebpackDashDynamicImport = require('@plotly/webpack-dash-dynamic-import');
const packagejson = require('./package.json');
const dashLibraryName = packagejson.name.replace(/-/g, '_');
module.exports = (env, argv) => {
let mode;
const overrides = module.exports || {};
// if user specified mode flag take that value
if (argv && argv.mode) {
mode = argv.mode;
}
// else if configuration object is already set (module.exports) use that value
else if (overrides.mode) {
mode = overrides.mode;
}
// else take webpack default (production)
else {
mode = 'production';
}
// Addition to cookie-cutter template, needed to get VSCODE debug to work
if (mode === 'development') {
overrides.devtool = 'eval-source-map'
}
let filename = (overrides.output || {}).filename;
if(!filename) {
const modeSuffix = mode === 'development' ? 'dev' : 'min';
filename = `${dashLibraryName}.${modeSuffix}.js`;
}
const entry = overrides.entry || {main: './src/lib/index.js'};
const devtool = overrides.devtool || 'source-map';
const externals = ('externals' in overrides) ? overrides.externals : ({
react: 'React',
'react-dom': 'ReactDOM',
'plotly.js': 'Plotly',
'prop-types': 'PropTypes',
});
return {
mode,
entry,
output: {
path: path.resolve(__dirname, dashLibraryName),
chunkFilename: '[name].js',
filename,
library: dashLibraryName,
libraryTarget: 'window',
},
devtool,
externals,
module: {
rules: [
{
test: /\.jsx?$/,
exclude: /node_modules/,
use: {
loader: 'babel-loader',
},
},
{
test: /\.css$/,
use: [
{
loader: 'style-loader',
options: {
insertAt: 'top'
}
},
{
loader: 'css-loader',
},
],
},
],
},
optimization: {
minimizer: [
new TerserPlugin({
sourceMap: true,
parallel: true,
cache: './.build_cache/terser',
terserOptions: {
warnings: false,
ie8: false
}
})
],
splitChunks: {
name: true,
cacheGroups: {
async: {
chunks: 'async',
minSize: 0,
name(module, chunks, cacheGroupKey) {
return `${cacheGroupKey}-${chunks[0].name}`;
}
},
shared: {
chunks: 'all',
minSize: 0,
minChunks: 2,
name: 'dash_holoniq_apexcharts-shared'
}
}
}
},
plugins: [
new WebpackDashDynamicImport(),
new webpack.SourceMapDevToolPlugin({
filename: '[file].map',
exclude: ['async-plotlyjs']
})
]
}
};