From 049bfe3f007d35d79823e0d31e6dc4d74771f211 Mon Sep 17 00:00:00 2001
From: James Cuzella <james.cuzella@lyraphase.com>
Date: Sat, 11 Mar 2017 16:09:24 -0700
Subject: [PATCH] y2j 1.1.1 (new formula)

Added new formula: y2j
Uses python virtualenv to provide runtime dependency on PyYAML
Uses optional dependency on docker for running on a system with only docker.

Closes wildducktheories/y2j#4
---
 Formula/y2j.rb | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 60 insertions(+)
 create mode 100644 Formula/y2j.rb

diff --git a/Formula/y2j.rb b/Formula/y2j.rb
new file mode 100644
index 0000000000000..1084f3d33a004
--- /dev/null
+++ b/Formula/y2j.rb
@@ -0,0 +1,60 @@
+class Y2j < Formula
+  include Language::Python::Virtualenv
+  desc "command-line tool for converting between YAML and JSON and vice versa."
+  homepage "https://github.com/wildducktheories/y2j"
+  url "https://github.com/wildducktheories/y2j/archive/v1.1.1.tar.gz"
+  sha256 "e11ac6886937b3c9784f61d3c77d00d9b4dbf3fa10ec6ddc6f847b68196d9f5d"
+  head "https://github.com/wildducktheories/y2j.git"
+
+  depends_on "jq" => :run
+  depends_on "base64" => :run
+  depends_on :python => :run
+  depends_on "docker" => :optional
+
+  resource "PyYAML" do
+    url "https://files.pythonhosted.org/packages/4a/85/db5a2df477072b2902b0eb892feb37d88ac635d36245a72a6a69b23b383a/PyYAML-3.12.tar.gz"
+    sha256 "592766c6303207a20efc445587778322d7f73b161bd994f227adaa341ba212ab"
+  end
+
+  def install
+    py_version = Language::Python.major_minor_version "python"
+    venv_site_packages_path = libexec/"lib/python#{py_version}/site-packages"
+    ENV["PYTHONPATH"] = venv_site_packages_path
+    venv = virtualenv_create(libexec, "python")
+
+    python_resources = resources.map(&:name).to_set
+    python_resources.each do |r|
+      venv.pip_install resource(r)
+    end
+
+    # Force our venv python for use with y2j
+    inreplace buildpath/"y2j.sh", /^#!.*bash/,
+                               "#!/usr/bin/env bash\nexport PYTHONPATH=#{venv_site_packages_path}:$PYTHONPATH"
+
+    install_script = `./y2j.sh installer #{prefix.to_s}`
+
+    File.open("install_y2j.sh", "w") do |f|
+      f.write(install_script)
+    end
+    chmod 0755, "./install_y2j.sh"
+    system "./install_y2j.sh"
+
+    bin.install "y2j.sh", "y2j", "j2y", "yq"
+  end
+
+  test do
+    yaml_test_input = <<-EOS.undent
+      ---
+      foo: bar
+    EOS
+
+    expected_output = "{\n    \"foo\": \"bar\"\n}"
+
+    require "open3"
+    Open3.popen3("#{bin}/y2j") do |stdin, stdout, _|
+      stdin.write(yaml_test_input)
+      stdin.close
+      assert_equal expected_output, stdout.read
+    end
+  end
+end