1 files changed, 15 insertions, 0 deletions
diff --git a/Library/Homebrew/dev-cmd/prof.rb b/Library/Homebrew/dev-cmd/prof.rb
new file mode 100755
index 000000000..c7121f6e8
--- /dev/null
+++ b/Library/Homebrew/dev-cmd/prof.rb
@@ -0,0 +1,15 @@
+#:  * `prof` [<ruby options>]:
+#:    Run Homebrew with the Ruby profiler.
+#:    For example:
+#       brew prof readall
+
+module Homebrew
+  module_function
+
+  def prof
+    Homebrew.install_gem_setup_path! "ruby-prof"
+    FileUtils.mkdir_p "prof"
+    brew_rb = (HOMEBREW_LIBRARY_PATH/"brew.rb").resolved_path
+    exec "ruby-prof", "--printer=multi", "--file=prof", brew_rb, "--", *ARGV
+  end
+end