Resurrecting pyside from the Homebrew boneyard

... as per the instructions yielded during a `brew search pyside`:

> ==> Searching blacklisted, migrated and deleted formulae...
> pyside was deleted from homebrew/core in commit e7e836c993:
>   pyside: migrate to boneyard (Homebrew/homebrew-core#5725)
>
> To show the formula before removal run:
>   git -C "$(brew --repo homebrew/core)" show e7e836c993^:Formula/pyside.rb

pyside.rb

@@ -0,0 +1,65 @@
+class Pyside < Formula
+  desc "Python bindings for Qt"
+  homepage "https://wiki.qt.io/PySide"
+  url "https://download.qt.io/official_releases/pyside/pyside-qt4.8+1.2.2.tar.bz2"
+  mirror "https://distfiles.macports.org/py-pyside/pyside-qt4.8+1.2.2.tar.bz2"
+  sha256 "a1a9df746378efe52211f1a229f77571d1306fb72830bbf73f0d512ed9856ae1"
+  revision 1
+
+  head "https://github.com/PySide/PySide.git"
+
+  bottle do
+    sha256 "d1f7a38b75e85ebdbb73d15ecd4b2154b236c80a790f021c9f70f95bc839d926" => :el_capitan
+    sha256 "8c2463514cd2133b9237143ceb2d73e64f96ff162c5c302b28f894132ad88490" => :yosemite
+    sha256 "fbc427b84b145fe0fa0a2a52e246f673e763da2b1eeec8deda872571602bb7b1" => :mavericks
+  end
+
+  # don't use depends_on :python because then bottles install Homebrew's python
+  option "without-python", "Build without python 2 support"
+  depends_on :python => :recommended if MacOS.version <= :snow_leopard
+  depends_on :python3 => :optional
+
+  option "without-docs", "Skip building documentation"
+
+  depends_on "cmake" => :build
+  depends_on "sphinx-doc" => :build if build.with? "docs"
+  depends_on "qt"
+
+  if build.with? "python3"
+    depends_on "shiboken" => "with-python3"
+  else
+    depends_on "shiboken"
+  end
+
+  def install
+    rm buildpath/"doc/CMakeLists.txt" if build.without? "docs"
+
+    # Add out of tree build because one of its deps, shiboken, itself needs an
+    # out of tree build in shiboken.rb.
+    Language::Python.each_python(build) do |python, version|
+      abi = `#{python} -c 'import sysconfig as sc; print(sc.get_config_var("SOABI"))'`.strip
+      python_suffix = python == "python" ? "-python2.7" : ".#{abi}"
+      mkdir "macbuild#{version}" do
+        qt = Formula["qt"].opt_prefix
+        args = std_cmake_args + %W[
+          -DSITE_PACKAGE=#{lib}/python#{version}/site-packages
+          -DALTERNATIVE_QT_INCLUDE_DIR=#{qt}/include
+          -DQT_SRC_DIR=#{qt}/src
+          -DPYTHON_SUFFIX=#{python_suffix}
+        ]
+        args << ".."
+        system "cmake", *args
+        system "make"
+        system "make", "install"
+      end
+    end
+
+    inreplace include/"PySide/pyside_global.h", Formula["qt"].prefix, Formula["qt"].opt_prefix
+  end
+
+  test do
+    Language::Python.each_python(build) do |python, _version|
+      system python, "-c", "from PySide import QtCore"
+    end
+  end
+end