Facilitate development with puma in the browser

A single worker in development enables in-context debug in the
error console in the browser.

1 files changed, 26 insertions, 30 deletions

diff --git a/config/puma.rb b/config/puma.rb
index 2d0dae8..98bdd50 100644
--- a/config/puma.rb
+++ b/config/puma.rb
@@ -14,46 +14,42 @@ threads min_threads_count, max_threads_count
 app_dir = File.expand_path('../..', __FILE__)
 shared_dir = "#{app_dir}/tmp"
 
+# Specifies the `environment` that Puma will run in.
+#
+environment ENV.fetch("RAILS_ENV") { "development" }
+
 # Specifies the `port` that Puma will listen on to receive requests; default is 3000.
 #
-if Rails.env.development?
-  port ENV.fetch("PORT") { 3000 }
-else
+if Rails.env.production?
+  # Bind to a (faster) socket
   bind "unix://#{shared_dir}/sockets/puma.sock";
+  # Log production errors
+  stdout_redirect "#{app_dir}/log/puma.stdout.log", "#{app_dir}/log/puma.stderr.log", true
+  # Specifies the number of `workers` to boot in clustered mode.
+  # Workers are forked web server processes. If using threads and workers together
+  # the concurrency of the application would be max `threads` * `workers`.
+  # Workers do not work on JRuby or Windows (both of which do not support
+  # processes).
+  #
+  workers ENV.fetch("WEB_CONCURRENCY") { 2 }
+  # Use the `preload_app!` method when specifying a `workers` number.
+  # This directive tells Puma to first boot the application and load code
+  # before forking the application. This takes advantage of Copy On Write
+  # process behavior so workers use less memory.
+  #
+  preload_app!
+else
+  port ENV.fetch("PORT") { 3000 }
+  # Do not redirect STDOUT so we can use byebug!
+  stdout_redirect nil, "#{app_dir}/log/puma.stderr.log", true
+  workers 1 # Enable web console debug during development
 end
 
-# Specifies the `environment` that Puma will run in.
-#
-environment ENV.fetch("RAILS_ENV") { "development" }
-
 # Specifies the `pidfile` that Puma will use.
 pidfile ENV.fetch("PIDFILE") { "#{shared_dir}/pids/server.pid" }
 # Keep puma state
 state_path "#{shared_dir}/pids/puma.state"
 
-# Logging
-if Rails.env.development?
-  # Do not redirect STDOUT so we can use byebug!
-  stdout_redirect nil, "#{app_dir}/log/puma.stderr.log", true
-else
-  stdout_redirect "#{app_dir}/log/puma.stdout.log", "#{app_dir}/log/puma.stderr.log", true
-end
-
-# Specifies the number of `workers` to boot in clustered mode.
-# Workers are forked web server processes. If using threads and workers together
-# the concurrency of the application would be max `threads` * `workers`.
-# Workers do not work on JRuby or Windows (both of which do not support
-# processes).
-#
-workers ENV.fetch("WEB_CONCURRENCY") { 2 }
-
-# Use the `preload_app!` method when specifying a `workers` number.
-# This directive tells Puma to first boot the application and load code
-# before forking the application. This takes advantage of Copy On Write
-# process behavior so workers use less memory.
-#
-preload_app!
-
 # Allow puma to be restarted by `rails restart` command.
 plugin :tmp_restart
 # Better integration with systemd