External command: brew linkapps

This command looks for Cocoa Applications (.app bundles) in the prefix
of all installed formulae. If any are found, they are linked into
"~/Applications", the system-defined location for per-user apps.

Library/Contributions/examples/brew-linkapps.rb

+# Links any Applications (.app) found in installed prefixes to ~/Applications
+require "formula"
+
+unless File.exist? File.expand_path("~/Applications")
+  opoo File.expand_path("~/Applications")+" does not exist, stopping."
+  exit 1
+end
+
+HOMEBREW_CELLAR.subdirs.each do |keg|
+  next unless keg.subdirs
+  name = keg.basename.to_s
+
+  if ((f = Formula.factory(name)).installed? rescue false)
+    Dir["#{f.prefix}/*.app"].each do |p|
+      puts "Linking #{p}"
+      appname = File.basename(p)
+      target = File.expand_path("~/Applications")+"/"+appname
+      if File.exist? target
+        if File.symlink? target
+          system "rm", target
+        else
+          onoe "#{target} already exists, skipping."
+        end
+      end
+      system "ln", "-s", p, File.expand_path("~/Applications")
+    end
+  end
+end