Add initial brew bottle implementation.

Library/Contributions/examples/brew-bottle.rb

@@ -0,0 +1,21 @@
+# Builds binary brew package
+brew_install
+
+destination = HOMEBREW_PREFIX + "Bottles"
+if not File.directory?(destination)
+ Dir.mkdir destination
+end
+
+ARGV.each do|formula|
+ # Get the latest version
+ version = `brew list --versions #{formula}`.split.last
+ source = HOMEBREW_CELLAR + formula + version
+ filename = formula + '-' + version + '.tar.gz'
+ ohai "Bottling #{formula} #{version}..."
+ HOMEBREW_CELLAR.cd do
+ # Use gzip, much faster than bzip2 and hardly any file size difference
+ # when compressing binaries.
+ safe_system "tar czf #{destination}/#{filename} #{formula}/#{version}"
+ end
+ ohai "Bottled #{filename}"
+end