Limit the playground --rerun option to linux platforms

gem/bin/pagy

@@ -3,6 +3,7 @@
 
 VERSION = '8.4.1'
 APPS    = %w[repro rails demo calendar].freeze
+LINUX   = RbConfig::CONFIG['host_os'].include?('linux')
 
 require_relative '../lib/optimist'
 opts = Optimist.options do
@@ -28,9 +29,11 @@ opts = Optimist.options do
   opt :host,    'Host', default: '0.0.0.0', short: :o
   opt :port,    'Port', default: 8000
   opt :install, 'Install bundle for users', default: true
-  text 'Rerun options'
-  opt :rerun,   'Enable rerun for development', default: true
-  opt :clear,   'Clear screen before each rerun'
+  if LINUX
+    text 'Rerun options'
+    opt :rerun,   'Enable rerun for development', default: true
+    opt :clear,   'Clear screen before each rerun'
+  end
   text 'Other options'
   opt :quiet,   'Quiet mode for development'
   version VERSION
@@ -48,7 +51,7 @@ Bundler.configure
 gemfile(opts[:install]) do
   source 'https://rubygems.org'
   gem 'rackup'
-  gem 'rerun'
+  gem 'rerun' if LINUX
 end
 
 path = ->(app) { File.expand_path("../apps/#{app}.ru", __dir__) }

playground.md

@@ -36,7 +36,8 @@ You should find the `./repro.ru` cloned app file in the current dir. Feel free t
 |||
 ||| Develop it
 
-This command runs your `rackup` app with a `puma` server, with `rerun` that auto-restart it when it changes:
+This command runs your `rackup` app with a `puma` server. It also uses `rerun` to auto-restart it when it changes (only on 
+linux platforms):
 
 ```sh
 pagy path/to/your-repro.ru
@@ -129,27 +130,16 @@ then `gem pristine GEMNAME` should solve the problem.
 
 ==- Rerun
 
-[Rerun](https://github.com/alexch/rerun) is used for restarting your app automatically during development.
+[Rerun](https://github.com/alexch/rerun) is used for restarting your app automatically during development (only on linux 
+platforms).
 
 That's very convenient, but it may still have some rough edges:
 
 !!!warning ** ERROR: directory is already being watched! **
 
-Your app is in a dir with looping simlinks, and the `listen` gem cannot handle it.
+Your app is in a dir with looping symlinks, and the `listen` gem cannot handle it.
 
 !!!success Move your app in a different dir
 !!!
 
-!!!warning On certain filesystems...
-
-It might not work properly or it may require additional dependencies.
-
-!!!success
-Pass the `--no-rerun` option to work with rackup only.
-
-```sh
-pagy ./my-repro.ru --no-rerun
-```
-
-!!!
 ===