Webpacker Config Files 7/10/19

environment.js

const { environment } = require("@rails/webpacker");

const webpack = require("webpack");

// remove when fixed https://github.com/rails/webpacker/issues/2003
const merge = require("webpack-merge");

const sassLoader = environment.loaders.get("sass");
const cssLoader = environment.loaders.get("css");

sassLoader.use.map(function(loader) {
  if (loader.loader === "css-loader") {
    loader.options = merge(loader.options, { sourceMap: false });
  }
});

cssLoader.use.map(function(loader) {
  if (loader.loader === "css-loader") {
    loader.options = merge(loader.options, { sourceMap: false });
  }
});
// remove when fixed https://github.com/rails/webpacker/issues/2003

environment.plugins.append(
  "Provide",
  new webpack.ProvidePlugin({
    $: "jquery",
    jQuery: "jquery",
    Popper: ["popper.js", "default"]
  })
);

module.exports = environment;

package.json

{
  "name": "scotteknight",
  "private": true,
  "dependencies": {
    "@rails/webpacker": "4.0.7",
    "@uppy/aws-s3": "^1.1.0",
    "@uppy/core": "^1.1.0",
    "bootstrap": "^4.3.1",
    "dayjs": "1.8.15",
    "flexbin": "^0.2.0",
    "font-awesome": "^4.7.0",
    "jquery": "3.4.1",
    "popper.js": "^1.15.0",
    "rails-ujs": "^5.2.3",
    "stimulus": "^1.1.1",
    "stimulus-flatpickr": "^1.0.0",
    "tablesort": "^5.1.0",
    "turbolinks": "^5.2.0",
    "webpack-merge": "^4.2.1",
    "whatwg-fetch": "^3.0.0"
  },
  "devDependencies": {
    "webpack-bundle-analyzer": "^3.3.2",
    "webpack-dev-server": "^3.3.1"
  }
}

postcss.config.js

module.exports = {
  plugins: [
    require('postcss-import'),
    require('postcss-flexbugs-fixes'),
    require('postcss-preset-env')({
      autoprefixer: {
        flexbox: 'no-2009'
      },
      stage: 3
    })
  ]
}

production.js

process.env.NODE_ENV = process.env.NODE_ENV || 'production'

const environment = require('./environment')

module.exports = environment.toWebpackConfig()

webpacker.yml

# Note: You must restart bin/webpack-dev-server for changes to take effect

default: &default
  source_path: app/javascript
  source_entry_path: packs
  public_root_path: public
  public_output_path: packs
  cache_path: tmp/cache/webpacker
  check_yarn_integrity: false
  webpack_compile_output: false

  # Additional paths webpack should lookup modules
  # ['app/assets', 'engine/foo/app/assets']
  resolved_paths: []

  # Reload manifest.json on all requests so we reload latest compiled packs
  cache_manifest: false

  # Extract and emit a css file
  extract_css: false

  static_assets_extensions:
    - .jpg
    - .jpeg
    - .png
    - .gif
    - .tiff
    - .ico
    - .svg
    - .eot
    - .otf
    - .ttf
    - .woff
    - .woff2

  extensions:
    - .mjs
    - .js
    - .sass
    - .scss
    - .css
    - .module.sass
    - .module.scss
    - .module.css
    - .png
    - .svg
    - .gif
    - .jpeg
    - .jpg

development:
  <<: *default
  compile: true

  # Verifies that versions and hashed value of the package contents in the project's package.json
  check_yarn_integrity: true

  # Reference: https://webpack.js.org/configuration/dev-server/
  dev_server:
    https: false
    host: localhost
    port: 3035
    public: localhost:3035
    hmr: false
    # Inline should be set to true if using HMR
    inline: true
    overlay: true
    compress: true
    disable_host_check: true
    use_local_ip: false
    quiet: false
    headers:
      'Access-Control-Allow-Origin': '*'
    watch_options:
      ignored: '**/node_modules/**'


test:
  <<: *default
  compile: true

  # Compile test packs to a separate directory
  public_output_path: packs-test

production:
  <<: *default

  # Production depends on precompilation of packs prior to booting for performance.
  compile: false

  # Extract and emit a css file
  extract_css: true

  # Cache manifest.json for performance
  cache_manifest: true

I don't see anything wrong here 👍