Add webpacker

.browserslistrc

@@ -0,0 +1 @@
+defaults

.gitignore

@@ -12,3 +12,10 @@
 /public/sitemap*.xml.gz
 /tmp
 /vendor/bundle
+
+/public/packs
+/public/packs-test
+/node_modules
+/yarn-error.log
+yarn-debug.log*
+.yarn-integrity

Gemfile

@@ -2,6 +2,7 @@ source "https://rubygems.org"
 
 gem "rails", "~> 6.0.0"
 
+gem "webpacker"
 gem "coffee-rails"
 gem "jquery-rails"
 gem "jquery-ui-rails"

Gemfile.lock

@@ -149,6 +149,8 @@ GEM
     rack (2.2.2)
     rack-mini-profiler (2.0.1)
       rack (>= 1.2.0)
+    rack-proxy (0.6.5)
+      rack
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails (6.0.2.2)
@@ -206,6 +208,7 @@ GEM
       sprockets (> 3.0)
       sprockets-rails
       tilt
+    semantic_range (2.3.0)
     sitemap_generator (6.1.0)
       builder (~> 3.0)
     spoon (0.0.6)
@@ -231,6 +234,11 @@ GEM
     unicorn-worker-killer (0.4.4)
       get_process_mem (~> 0)
       unicorn (>= 4, < 6)
+    webpacker (5.0.1)
+      activesupport (>= 5.2)
+      rack-proxy (>= 0.6.1)
+      railties (>= 5.2)
+      semantic_range (>= 2.3.0)
     websocket-driver (0.7.1)
       websocket-extensions (>= 0.1.0)
     websocket-driver (0.7.1-java)
@@ -282,6 +290,7 @@ DEPENDENCIES
   uglifier
   unicorn
   unicorn-worker-killer
+  webpacker
   will-paginate-i18n
   will_paginate
 

babel.config.js

@@ -0,0 +1,72 @@
+module.exports = function(api) {
+  var validEnv = ['development', 'test', 'production']
+  var currentEnv = api.env()
+  var isDevelopmentEnv = api.env('development')
+  var isProductionEnv = api.env('production')
+  var isTestEnv = api.env('test')
+
+  if (!validEnv.includes(currentEnv)) {
+    throw new Error(
+      'Please specify a valid `NODE_ENV` or ' +
+        '`BABEL_ENV` environment variables. Valid values are "development", ' +
+        '"test", and "production". Instead, received: ' +
+        JSON.stringify(currentEnv) +
+        '.'
+    )
+  }
+
+  return {
+    presets: [
+      isTestEnv && [
+        '@babel/preset-env',
+        {
+          targets: {
+            node: 'current'
+          }
+        }
+      ],
+      (isProductionEnv || isDevelopmentEnv) && [
+        '@babel/preset-env',
+        {
+          forceAllTransforms: true,
+          useBuiltIns: 'entry',
+          corejs: 3,
+          modules: false,
+          exclude: ['transform-typeof-symbol']
+        }
+      ]
+    ].filter(Boolean),
+    plugins: [
+      'babel-plugin-macros',
+      '@babel/plugin-syntax-dynamic-import',
+      isTestEnv && 'babel-plugin-dynamic-import-node',
+      '@babel/plugin-transform-destructuring',
+      [
+        '@babel/plugin-proposal-class-properties',
+        {
+          loose: true
+        }
+      ],
+      [
+        '@babel/plugin-proposal-object-rest-spread',
+        {
+          useBuiltIns: true
+        }
+      ],
+      [
+        '@babel/plugin-transform-runtime',
+        {
+          helpers: false,
+          regenerator: true,
+          corejs: false
+        }
+      ],
+      [
+        '@babel/plugin-transform-regenerator',
+        {
+          async: false
+        }
+      ]
+    ].filter(Boolean)
+  }
+}

bin/webpack

@@ -0,0 +1,18 @@
+#!/usr/bin/env ruby
+
+ENV["RAILS_ENV"] ||= ENV["RACK_ENV"] || "development"
+ENV["NODE_ENV"]  ||= "development"
+
+require "pathname"
+ENV["BUNDLE_GEMFILE"] ||= File.expand_path("../../Gemfile",
+  Pathname.new(__FILE__).realpath)
+
+require "bundler/setup"
+
+require "webpacker"
+require "webpacker/webpack_runner"
+
+APP_ROOT = File.expand_path("..", __dir__)
+Dir.chdir(APP_ROOT) do
+  Webpacker::WebpackRunner.run(ARGV)
+end

bin/webpack-dev-server

@@ -0,0 +1,18 @@
+#!/usr/bin/env ruby
+
+ENV["RAILS_ENV"] ||= ENV["RACK_ENV"] || "development"
+ENV["NODE_ENV"]  ||= "development"
+
+require "pathname"
+ENV["BUNDLE_GEMFILE"] ||= File.expand_path("../../Gemfile",
+  Pathname.new(__FILE__).realpath)
+
+require "bundler/setup"
+
+require "webpacker"
+require "webpacker/dev_server_runner"
+
+APP_ROOT = File.expand_path("..", __dir__)
+Dir.chdir(APP_ROOT) do
+  Webpacker::DevServerRunner.run(ARGV)
+end

config/application.rb

@@ -2,6 +2,7 @@ require_relative 'boot'
 
 # To allow setting environment variable ZP_DATABASE_URL instead of DATABASE_URL.
 ENV['DATABASE_URL'] = ENV['MB_DATABASE_URL'] if ENV['MB_DATABASE_URL']
+ENV['NODE_ENV'] = ENV['RAILS_ENV']
 
 require 'rails/all'
 

config/webpack/development.js

@@ -0,0 +1,5 @@
+process.env.NODE_ENV = process.env.NODE_ENV || 'development'
+
+const environment = require('./environment')
+
+module.exports = environment.toWebpackConfig()

config/webpack/environment.js

@@ -0,0 +1,7 @@
+const { environment } = require('@rails/webpacker')
+const coffee =  require('./loaders/coffee')
+const erb = require('./loaders/erb')
+
+environment.loaders.prepend('erb', erb)
+environment.loaders.prepend('coffee', coffee)
+module.exports = environment

config/webpack/loaders/coffee.js

@@ -0,0 +1,6 @@
+module.exports = {
+  test: /\.coffee(\.erb)?$/,
+  use: [{
+    loader: 'coffee-loader'
+  }]
+}

config/webpack/loaders/erb.js

@@ -0,0 +1,11 @@
+module.exports = {
+  test: /\.erb$/,
+  enforce: 'pre',
+  exclude: /node_modules/,
+  use: [{
+    loader: 'rails-erb-loader',
+    options: {
+      runner: (/^win/.test(process.platform) ? 'ruby ' : '') + 'bin/rails runner'
+    }
+  }]
+}

config/webpack/production.js

@@ -0,0 +1,5 @@
+process.env.NODE_ENV = process.env.NODE_ENV || 'production'
+
+const environment = require('./environment')
+
+module.exports = environment.toWebpackConfig()

config/webpack/test.js

@@ -0,0 +1,5 @@
+process.env.NODE_ENV = process.env.NODE_ENV || 'development'
+
+const environment = require('./environment')
+
+module.exports = environment.toWebpackConfig()

config/webpacker.yml

@@ -0,0 +1,100 @@
+# 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: true
+
+  # Additional paths webpack should lookup modules
+  # ['app/assets', 'engine/foo/app/assets']
+  resolved_paths: ['lib/assets/javascripts']
+
+
+  # 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:
+    - .coffee
+    - .erb
+    - .coffee.erb
+    - .mjs
+    - .js
+    - .sass
+    - .scss
+    - .css
+    - .module.sass
+    - .module.scss
+    - .module.css
+    - .png
+    - .svg
+    - .gif
+    - .jpeg
+    - .jpg
+
+development:
+  <<: *default
+  compile: true
+
+  # Verifies that correct packages and versions are installed by inspecting package.json, yarn.lock, and node_modules
+  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
+    pretty: 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

package.json

@@ -0,0 +1,11 @@
+{
+  "dependencies": {
+    "@rails/webpacker": "5.0.1",
+    "coffee-loader": "^0.9.0",
+    "coffeescript": "1.12.7",
+    "rails-erb-loader": "^5.5.2"
+  },
+  "devDependencies": {
+    "webpack-dev-server": "^3.10.3"
+  }
+}

postcss.config.js

@@ -0,0 +1,12 @@
+module.exports = {
+  plugins: [
+    require('postcss-import'),
+    require('postcss-flexbugs-fixes'),
+    require('postcss-preset-env')({
+      autoprefixer: {
+        flexbox: 'no-2009'
+      },
+      stage: 3
+    })
+  ]
+}