crystal 0.5.1 (new formula)

Open source code generator for every language, library and framework.

Closes Homebrew/homebrew#40530.

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

Formula/crystal.rb

@@ -0,0 +1,31 @@
+class Crystal < Formula
+  desc "Code generator for every language, library and framework"
+  homepage "http://crystal.sh"
+  url "https://github.com/crystal/crystal/archive/v0.5.1.tar.gz"
+  sha256 "6c022ad59a10cec58856dba858a030b745333909108c08bd326c20ac0cb144fb"
+
+  depends_on "node"
+
+  def install
+    ENV.prepend_path "PATH", "#{Formula["node"].opt_libexec}/npm/bin"
+    ENV["HOME"] = "#{buildpath}/.brew_home"
+
+    system "npm", "install"
+    libexec.install Dir["*", ".crystal"]
+    bin.install_symlink Dir["#{libexec}/bin/*"]
+  end
+
+  test do
+    (testpath/".crystal/config.yml").write <<-EOS.undent
+      name: test
+      version: 0.1.0
+      description: test description
+      author:
+        name: Test User
+        email: test@example.com
+        url: http://example.com
+      copyright: 2015 Test
+    EOS
+    system bin/"crystal", "build"
+  end
+end