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Apply react_on_rails:install generator updates
Ran the react_on_rails:install generator to get latest v16.1.1 improvements: - Enhanced bin/dev script with better development server management - Added Procfile variations for different development modes: - Procfile.dev: HMR mode with webpack-dev-server - Procfile.dev-static-assets: Watch mode without HMR - Procfile.dev-prod-assets: Development with production assets - Updated webpack configurations for v16.1.1 compatibility - Updated shakapacker.yml configuration - Updated babel.config.js - Updated react_on_rails initializer - Added generateWebpackConfigs.js helper These updates provide better development experience and align with React on Rails v16.1.1 best practices. 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
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‎.gitignore‎

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/lib/ocaml
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client/app/bundles/comments/rescript/**/*.bs.js
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# Generated React on Rails packs
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**/generated/**
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ssr-generated

‎Procfile.dev‎

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# Procfile for development using HMR
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# You can run these commands in separate shells
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rescript: yarn res:dev
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redis: redis-server
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rails: bundle exec rails s -p 3000
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wp-client: HMR=true RAILS_ENV=development NODE_ENV=development bin/shakapacker-dev-server
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wp-server: bundle exec rake react_on_rails:locale && HMR=true SERVER_BUNDLE_ONLY=yes bin/shakapacker --watch
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wp-client: WEBPACK_SERVE=true bin/shakapacker-dev-server
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wp-server: SERVER_BUNDLE_ONLY=yes bin/shakapacker --watch

‎Procfile.dev-prod-assets‎

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# Procfile for development with production assets
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# Uses production-optimized, precompiled assets with development environment
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# Uncomment additional processes as needed for your app
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rails: bundle exec rails s -p 3001
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# sidekiq: bundle exec sidekiq -C config/sidekiq.yml
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# redis: redis-server
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# mailcatcher: mailcatcher --foreground

‎Procfile.dev-static-assets‎

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web: bin/rails server -p 3000
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js: bin/shakapacker --watch

‎babel.config.js‎

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// The source code including full typescript support is available at:
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// https://github.com/shakacode/react_on_rails_demo_ssr_hmr/blob/master/babel.config.js
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module.exports = function (api) {
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const defaultConfigFunc = require('shakapacker/package/babel/preset.js');
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const resultConfig = defaultConfigFunc(api);
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const isProductionEnv = api.env('production');
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const defaultConfigFunc = require('shakapacker/package/babel/preset.js')
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const resultConfig = defaultConfigFunc(api)
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const isProductionEnv = api.env('production')
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const changesOnDefault = {
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presets: [
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[
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'@babel/preset-react',
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{
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runtime: 'automatic',
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development: !isProductionEnv,
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useBuiltIns: true,
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},
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],
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runtime: 'automatic'
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}
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]
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].filter(Boolean),
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plugins: [
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process.env.WEBPACK_SERVE && 'react-refresh/babel',
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isProductionEnv && [
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'babel-plugin-transform-react-remove-prop-types',
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// Enable React Refresh (Fast Refresh) only when webpack-dev-server is running (HMR mode)
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// This prevents React Refresh from trying to connect when using static compilation
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!isProductionEnv && process.env.WEBPACK_SERVE && 'react-refresh/babel',
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isProductionEnv && ['babel-plugin-transform-react-remove-prop-types',
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{
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removeImport: true,
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},
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],
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removeImport: true
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}
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]
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].filter(Boolean),
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};
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}
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resultConfig.presets = [...resultConfig.presets, ...changesOnDefault.presets];
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resultConfig.plugins = [...resultConfig.plugins, ...changesOnDefault.plugins];
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resultConfig.presets = [...resultConfig.presets, ...changesOnDefault.presets]
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resultConfig.plugins = [...resultConfig.plugins, ...changesOnDefault.plugins ]
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return resultConfig;
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};
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return resultConfig
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}

‎bin/dev‎

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#!/usr/bin/env ruby
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# frozen_string_literal: true
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def installed?(process)
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IO.popen "#{process} -v"
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rescue Errno::ENOENT
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false
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end
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# ReactOnRails Development Server
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#
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# This script provides a simple interface to the ReactOnRails development
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# server management. The core logic is implemented in ReactOnRails::Dev
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# classes for better maintainability and testing.
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#
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# Each command uses a specific Procfile for process management:
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# - bin/dev (default/hmr): Uses Procfile.dev
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# - bin/dev static: Uses Procfile.dev-static-assets
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# - bin/dev prod: Uses Procfile.dev-prod-assets
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#
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# To customize development environment:
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# 1. Edit the appropriate Procfile to modify which processes run
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# 2. Modify this script for project-specific command-line behavior
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# 3. Extend ReactOnRails::Dev classes in your Rails app for advanced customization
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# 4. Use classes directly: ReactOnRails::Dev::ServerManager.start(:development, "Custom.procfile")
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def run(process)
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system "#{process} start -f Procfile.dev"
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rescue Errno::ENOENT
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warn <<~MSG
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ERROR:
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Please ensure `Procfile.dev` exists in your project!
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MSG
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exit!
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end
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require "bundler/setup"
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require "react_on_rails/dev"
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if installed? "overmind"
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run "overmind"
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elsif installed? "foreman"
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run "foreman"
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else
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warn <<~MSG
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NOTICE:
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For this script to run, you need either 'overmind' or 'foreman' installed on your machine. Please try this script after installing one of them.
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MSG
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exit!
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end
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# Default route configuration
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# This is set by the ReactOnRails installer to point to your generated component.
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# Change this to your preferred default route, or pass --route=<route> to override.
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DEFAULT_ROUTE = "hello_world"
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# Main execution
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# Add the default route to ARGV if no --route option is provided
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argv_with_defaults = ARGV.dup
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argv_with_defaults.push("--route", DEFAULT_ROUTE) unless argv_with_defaults.any? { |arg| arg.start_with?("--route") }
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ReactOnRails::Dev::ServerManager.run_from_command_line(argv_with_defaults)

‎config/initializers/react_on_rails.rb‎

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# frozen_string_literal: true
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# Shown below are the defaults for configuration
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ReactOnRails.configure do |config|
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# Define the files for we need to check for webpack compilation when running tests
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config.webpack_generated_files = %w[client-bundle.js server-bundle.js]
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# See https://github.com/shakacode/react_on_rails/blob/master/docs/guides/configuration.md
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# for many more options.
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config.build_test_command = "RAILS_ENV=test bin/shakapacker"
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config.build_production_command = "RAILS_ENV=production NODE_ENV=production bin/shakapacker"
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ReactOnRails.configure do |config|
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# This configures the script to run to build the production assets by webpack. Set this to nil
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# if you don't want react_on_rails building this file for you.
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# If nil, then the standard shakacode/shakapacker assets:precompile will run
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# config.build_production_command = nil
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# This is the file used for server rendering of React when using `(prerender: true)`
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# If you are never using server rendering, you may set this to "".
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# If you are using the same file for client and server rendering, having this set probably does
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# not affect performance.
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config.server_bundle_js_file = "server-bundle.js"
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################################################################################
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################################################################################
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# TEST CONFIGURATION OPTIONS
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# Below options are used with the use of this test helper:
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# ReactOnRails::TestHelper.configure_rspec_to_compile_assets(config)
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################################################################################
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# React on Rails 16 compatibility: Workaround for removed error handling
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# If you are using this in your spec_helper.rb (or rails_helper.rb):
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#
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# ReactOnRails::TestHelper.configure_rspec_to_compile_assets(config)
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#
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# BREAKING CHANGE in v16: React on Rails 14.2.1 had robust error handling that would
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# fallback to the Shakapacker output path when bundle lookup failed. This was removed
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# in v16.0.1.rc.2, causing it to look in the wrong directory during tests.
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# with rspec then this controls what npm command is run
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# to automatically refresh your webpack assets on every test run.
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#
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# This configuration tells React on Rails where to find bundles in test environment.
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# Without this, it defaults to public/webpack/test/ instead of public/packs/
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config.generated_assets_dir = Rails.public_path.join("packs").to_s if Rails.env.test?
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# Alternately, you can remove the `ReactOnRails::TestHelper.configure_rspec_to_compile_assets`
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# and set the config/shakapacker.yml option for test to true.
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config.build_test_command = "RAILS_ENV=test bin/shakapacker"
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################################################################################
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# CLIENT RENDERING OPTIONS
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# Below options can be overriden by passing options to the react_on_rails
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# `render_component` view helper method.
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################################################################################
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# Default is false. Can be overriden at the component level.
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# Set to false for debugging issues before turning on to true.
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config.prerender = true
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# default is true for development, off otherwise
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config.trace = Rails.env.development?
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################################################################################
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# SERVER RENDERING OPTIONS
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# Applicable options can be overriden by passing options to the react_on_rails
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# `render_component` view helper method.
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################################################################################
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# This is the file used for server rendering of React when using `(prerender: true)`
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# If you are never using server rendering, you should set this to "".
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# Note, there is only one server bundle, unlike JavaScript where you want to minimize the size
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# of the JS sent to the client. For the server rendering, React on Rails creates a pool of
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# JavaScript execution instances which should handle any component requested.
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#
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# While you may configure this to be the same as your client bundle file, this file is typically
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# different. You should have ONE server bundle which can create all of your server rendered
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# React components.
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#
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config.server_bundle_js_file = "server-bundle.js"
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# If set to true, this forces Rails to reload the server bundle if it is modified
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config.development_mode = Rails.env.development?
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# For server rendering. This can be set to false so that server side messages are discarded.
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# Default is true. Be cautious about turning this off.
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config.replay_console = true
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# Default is true. Logs server rendering messages to Rails.logger.info
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config.logging_on_server = true
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# Change to true to raise exception on server if the JS code throws. Let's do this only if not
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# in production, as the JS code might still work on the client and we don't want to blow up the
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# whole Rails page.
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config.raise_on_prerender_error = !Rails.env.production?
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# Configure where server bundles are output. Defaults to "ssr-generated".
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# This should match your webpack configuration for server bundles.
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config.server_bundle_output_path = "ssr-generated"
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# Server rendering only (not for render_component helper)
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# You can configure your pool of JS virtual machines and specify where it should load code:
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# On MRI, use `therubyracer` for the best performance
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# (see [discussion](https://github.com/reactjs/react-rails/pull/290))
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# On MRI, you'll get a deadlock with `pool_size` > 1
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# If you're using JRuby, you can increase `pool_size` to have real multi-threaded rendering.
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config.server_renderer_pool_size = 1 # increase if you're on JRuby
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config.server_renderer_timeout = 20 # seconds
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# Enforce that server bundles are only loaded from private (non-public) directories.
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# When true, server bundles will only be loaded from the configured server_bundle_output_path.
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# This is recommended for production to prevent server-side code from being exposed.
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config.enforce_private_server_bundles = true
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################################################################################
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# I18N OPTIONS
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################################################################################
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# Replace the following line to the location where you keep translation.js & default.js.
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config.i18n_dir = Rails.root.join("client/app/libs/i18n")
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################################################################################
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# MISCELLANEOUS OPTIONS
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# FILE SYSTEM BASED COMPONENT REGISTRY
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################################################################################
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# This allows you to add additional values to the Rails Context. Implement one static method
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# called `custom_context(view_context)` and return a Hash.
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config.rendering_extension = nil
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config.i18n_output_format = "js"
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# `components_subdirectory` is the name of the matching directories that contain automatically registered components
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# for use in the Rails views. The default is nil, you can enable the feature by updating it in the next line.
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config.components_subdirectory = "ror_components"
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#
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# For automated component registry, `render_component` view helper method tries to load bundle for component from
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# generated directory. default is false, you can pass option at the time of individual usage or update the default
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# in the following line
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config.auto_load_bundle = true
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end

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