1 files changed, 16 insertions, 0 deletions
diff --git a/Library/Homebrew/cmd/unpin.rb b/Library/Homebrew/cmd/unpin.rb
new file mode 100644
index 000000000..6855db4bf
--- /dev/null
+++ b/Library/Homebrew/cmd/unpin.rb
@@ -0,0 +1,16 @@
+require 'formula'
+
+module Homebrew extend self
+  def unpin
+    if Process.uid.zero? and not File.stat(HOMEBREW_BREW_FILE).uid.zero?
+      abort "Cowardly refusing to `sudo unpin'"
+    end
+    raise FormulaUnspecifiedError if ARGV.named.empty?
+    ARGV.formulae.each do |fmla|
+      f = Formula.factory(fmla.to_s)
+      onoe "Cannot unpin uninstalled formula #{f.name}!" unless f.pinable?
+      opoo "Formula #{f.name} already unpinned!" if f.pinable? and not f.pinned?
+      f.unpin if f.pinable? and f.pinned?
+    end
+  end
+end