joshuaflanagan · June 27, 2012 01:10 · Jun 27, 2012
diff --git a/watch_git.rb b/watch_git.rb
@@ -0,0 +1,27 @@
+# I used this to monitor changes to the .git folder during
+# my Austin on Rails lightning talk on Understanding Git.
+#
+# I ignore any changes to the .git/logs folder, because they are
+# noisy and don't add a lot to understanding.
+# If you want "the whole truth", remove the :ignore parameter below.
+#
+# ruby listen.rb <path to .git folder>
+#
+# gem install listen # its the foundation of Guard
+require 'listen'
+path_to_watch = ARGV[0] || '.'
+last_change = Time.now
+
+Listen.to(path_to_watch, 
+          :relative_paths => true, 
+          :ignore => /logs\//) do |modified, added, removed|
+  # cheap way to add some separation between output from git commands
+  latest = Time.now
+  if (latest - last_change > 1)
+    last_change = latest
+    puts "\n\n"
+  end
+  modified.each{|m| puts "\e[33mCHANGED\e[0m  #{m}" }
+  added.each{|m|    puts "\e[32m  ADDED\e[0m  #{m}" }
+  removed.each{|m|  puts "\e[31mREMOVED\e[0m  #{m}" }
+end