make linkapps official

1 files changed, 36 insertions, 0 deletions

diff --git a/Library/Homebrew/cmd/linkapps.rb b/Library/Homebrew/cmd/linkapps.rb
new file mode 100755
index 000000000..5cf254625
--- /dev/null
+++ b/Library/Homebrew/cmd/linkapps.rb
@@ -0,0 +1,36 @@
+# Links any Applications (.app) found in installed prefixes to /Applications
+require 'keg'
+
+module Homebrew extend self
+
+  def linkapps
+    target_dir = ARGV.include?("--local") ? File.expand_path("~/Applications") : "/Applications"
+
+    unless File.exist? target_dir
+      opoo "#{target_dir} does not exist, stopping."
+      puts "Run `mkdir #{target_dir}` first."
+      exit 1
+    end
+
+    HOMEBREW_CELLAR.subdirs.each do |rack|
+      kegs = rack.subdirs.map { |d| Keg.new(d) }
+      next if kegs.empty?
+
+      keg = kegs.detect(&:linked?) || kegs.max {|a,b| a.version <=> b.version}
+
+      Dir["#{keg}/*.app", "#{keg}/bin/*.app", "#{keg}/libexec/*.app"].each do |app|
+        puts "Linking #{app}"
+        app_name = File.basename(app)
+        target = "#{target_dir}/#{app_name}"
+
+        if File.exist?(target) && !File.symlink?(target)
+          onoe "#{target} already exists, skipping."
+          next
+        end
+        system "ln", "-sf", app, target_dir
+      end
+    end
+
+    puts "Finished linking. Find the links under #{target_dir}."
+  end
+end