planck 1.3 (new formula)

Closes #42423.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>

Library/Formula/planck.rb

@@ -0,0 +1,20 @@
+class Planck < Formula
+  desc "A command-line ClojureScript REPL for OS X."
+  homepage "http://planck.fikesfarm.com/"
+  url "https://github.com/mfikes/planck/archive/1.3.tar.gz"
+  sha256 "82dabffc03cf16527a867782714f81b93e7bb9e7a5db9d3992b74cc74c169790"
+
+  depends_on "leiningen" => :build
+
+  depends_on :xcode => :build
+  depends_on :macos => :yosemite
+
+  def install
+    system "./build.sh"
+    bin.install "build/Release/planck"
+  end
+
+  test do
+    system "#{bin}/planck", "-e", "'(- 1 1)'"
+  end
+end