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webpack.config.js
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webpack.config.js
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const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const CleanWebpackPlugin = require('clean-webpack-plugin');
const webpack = require('webpack');
const MiniCssExtractPlugin = require("mini-css-extract-plugin");
const scssSharedLoaders = [{ // defining array of css loaders here to avoid duplication below
loader: MiniCssExtractPlugin.loader,
},{
loader: 'postcss-loader',
options: {
sourceMap: true
}
},{
loader: 'sass-loader',
options: {
sourceMap: true
}
}];
module.exports = {
entry: {
'js/index': './src/index.js'
},
devtool: 'inline-source-map', // may be too slow an option; set to another if so
devServer: {
contentBase: './dist',
hot: true
},
mode: 'development',
module: {
rules: [
{
test: /\.scss$/,
exclude: /main\.scss/,
use: [{
loader: 'style-loader'
},{
loader: 'css-loader',
options: {
modules: true,
localIdentName: '[local]',
sourceMap: true
}
},
...scssSharedLoaders.slice(1)]
},
{
test: /main\.scss/, // the html refering to classes in main.scss is hard-coded in the index.ejs template
// and therefore these styles should not be renamed bc the html would no longer match
use: [scssSharedLoaders[0],
{
loader: 'css-loader',
options: {
sourceMap: true,
minimize: true,
importLoaders: 1
}
},
...scssSharedLoaders.slice(1)]
},
{
test: /\.js$/,
exclude: /node_modules/,
use: ['babel-loader', 'eslint-loader']
},
{
test: /\.csv$/,
loader: 'csv-loader',
options: {
dynamicTyping: true,
header: true,
skipEmptyLines: true
}
},
{
// images under limit converted to data url. above the limit falls back to file-loader to emit file
// as specified in options (options are passed to file-loader)
test: /\.(png|jp(e?)g|gif)$/,
loader: 'url-loader',
options: {
limit: 10 * 1024,
name: '[name].[ext]',
outputPath: 'images/',
}
},
{
// SVGs under limit converted to data url. svg-url-loader converts to utf-8 instead of hex, shorter for human-readable code.
// above the limit falls back to file-loader to emit file as specified in options (options are passed to file-loader)
test: /\.svg$/,
loader: 'svg-url-loader',
options: {
limit: 10 * 1024,
name: '[name].[ext]',
outputPath: 'images/',
}
},
]
},
plugins: [
new CleanWebpackPlugin(['dist']),
new HtmlWebpackPlugin({
title: 'Shale Research Clearinghouse',
inject: false,
template: './src/index.html',
}),
new MiniCssExtractPlugin({
// Options similar to the same options in webpackOptions.output
// both options are optional
filename: "css/styles.css",
chunkFilename: "[id].css",
}),
new webpack.HotModuleReplacementPlugin()
],
output: {
filename: '[name].js',
path: path.resolve(__dirname, 'dist')
}
};