Revert bin/dev removal

Author: npezza93

README.md

@@ -63,7 +63,7 @@ The `tailwindcss:build` task is automatically attached to the `test:prepare` Rak
 While you're developing your application, you want to run Tailwind in "watch" mode, so changes are automatically reflected in the generated CSS output. You can do this by:
 
 - running `rails tailwindcss:watch` as a separate process,
-- or by using the puma plugin
+- or by running `./bin/dev` which uses [foreman](https://github.com/ddollar/foreman) to start both the Tailwind watch process and the rails server in development mode.
 
 If you are running `rails tailwindcss:watch` on a system that doesn't fully support file system events, pass a `poll` argument to the task to instruct tailwindcss to instead use polling: `rails tailwindcss:watch[poll]`. If you use `bin/dev` then you should modify your `Procfile.dev`.
 

lib/install/Procfile.dev

@@ -0,0 +1,2 @@
+web: env RUBY_DEBUG_OPEN=true bin/rails server -p 3000
+css: bin/rails tailwindcss:watch

lib/install/dev

@@ -0,0 +1,8 @@
+#!/usr/bin/env sh
+
+if ! gem list foreman -i --silent; then
+  echo "Installing foreman..."
+  gem install foreman
+fi
+
+exec foreman start -f Procfile.dev "$@"

lib/install/tailwindcss.rb

@@ -38,8 +38,19 @@
   copy_file "#{__dir__}/application.tailwind.css", "app/assets/stylesheets/application.tailwind.css"
 end
 
-say "Add puma plugin"
-append_to_file "config/puma.rb", %(\n# Runs the tailwind watcher\nplugin :tailwindcss if ENV.fetch("RAILS_ENV", "development") == "development")
+if Rails.root.join("Procfile.dev").exist?
+  append_to_file "Procfile.dev", "css: bin/rails tailwindcss:watch\n"
+else
+  say "Add default Procfile.dev"
+  copy_file "#{__dir__}/Procfile.dev", "Procfile.dev"
+
+  say "Ensure foreman is installed"
+  run "gem install foreman"
+end
+
+say "Add bin/dev to start foreman"
+copy_file "#{__dir__}/dev", "bin/dev"
+chmod "bin/dev", 0755, verbose: false
 
 say "Compile initial Tailwind build"
 run "rails tailwindcss:build"