From 0c7e7ae437900952b9f43f8a94e8b1aa57f3015f Mon Sep 17 00:00:00 2001
From: Max Howell
Date: Fri, 2 Mar 2012 20:28:54 +0000
Subject: `brew tap` and `brew untap`

---
 Library/Homebrew/cmd/tap.rb | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 Library/Homebrew/cmd/tap.rb

(limited to 'Library/Homebrew/cmd/tap.rb')

diff --git a/Library/Homebrew/cmd/tap.rb b/Library/Homebrew/cmd/tap.rb
new file mode 100644
index 000000000..e1f53db8b
--- /dev/null
+++ b/Library/Homebrew/cmd/tap.rb
@@ -0,0 +1,38 @@
+HOMEBREW_LIBRARY = HOMEBREW_REPOSITORY/"Library"
+
+module Homebrew extend self
+
+  def tap
+    if ARGV.empty?
+      (HOMEBREW_LIBRARY/"Taps").children.each do |tap|
+        puts tap.basename.sub('-', '/') if (tap/'.git').directory?
+      end
+    else
+      install_tap(*tap_args)
+    end
+  end
+
+  def install_tap user, repo
+    raise "brew install git" unless system "/usr/bin/which -s git"
+
+    tapd = HOMEBREW_LIBRARY/"Taps/#{user}-#{repo}"
+    raise "Already tapped!" if tapd.directory?
+    abort unless system "git clone https://github.com/#{user}/homebrew-#{repo} #{tapd}"
+
+    cd HOMEBREW_LIBRARY/"Formula"
+    tapd.find_formula do |relative_pathname|
+      # using the system ln is the only way to get relative symlinks
+      system "ln -s ../Taps/#{user}-#{repo}/#{relative_pathname} 2>/dev/null"
+      opoo "#{relative_pathname.basename(".rb")} conflicts" unless $?.success?
+    end
+  end
+
+  private
+
+  def tap_args
+    ARGV.first =~ %r{^(\w+)/(homebrew-)?(\w+)$}
+    raise "Invalid usage" unless $1 and $3
+    [$1, $3]
+  end
+
+end
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