tup: import from homebrew/fuse.

Formula/tup.rb

@@ -0,0 +1,23 @@
+class Tup < Formula
+  desc "File-based build system"
+  homepage "http://gittup.org/tup/"
+  url "https://github.com/gittup/tup/archive/v0.7.5.tar.gz"
+  sha256 "361b3e069308ce1d9505d1cb927999ac448811a3425c724123e0c48602a9d1e4"
+  head "https://github.com/gittup/tup.git"
+
+  depends_on "pkg-config" => :build
+  depends_on :osxfuse
+
+  def install
+    ENV["TUP_LABEL"] = version
+    system "./build.sh"
+    bin.install "build/tup"
+    man1.install "tup.1"
+    doc.install (buildpath/"docs").children
+    pkgshare.install "contrib/syntax"
+  end
+
+  test do
+    system "#{bin}/tup", "-v"
+  end
+end