openimageio: migrate from homebrew/science

Closes #22522.

Signed-off-by: FX Coudert <fxcoudert@gmail.com>

Formula/openimageio.rb

@@ -0,0 +1,87 @@
+class Openimageio < Formula
+  desc "Library for reading, processing and writing images"
+  homepage "http://openimageio.org/"
+  url "https://github.com/OpenImageIO/oiio/archive/Release-1.8.7.tar.gz"
+  sha256 "ed23ecdd3e4037a411c69a6a681273d01d4a2fbcc223eac86daba77dd03fc5ed"
+  head "https://github.com/OpenImageIO/oiio.git"
+
+  depends_on "cmake" => :build
+  depends_on "pkg-config" => :build
+  depends_on "boost"
+  depends_on "boost-python"
+  depends_on "boost-python3"
+  depends_on "ffmpeg"
+  depends_on "freetype"
+  depends_on "giflib"
+  depends_on "ilmbase"
+  depends_on "jpeg"
+  depends_on "libpng"
+  depends_on "libraw"
+  depends_on "libtiff"
+  depends_on "opencolorio"
+  depends_on "openexr"
+  depends_on "python3"
+  depends_on "webp"
+
+  def install
+    # -DUSE_OPENSSL=OFF can be removed in 1.9, see
+    # https://github.com/Homebrew/homebrew-core/pull/22522#issuecomment-364831533
+    args = std_cmake_args + %w[
+      -DEMBEDPLUGINS=ON
+      -DUSE_FIELD3D=OFF
+      -DUSE_JPEGTURBO=OFF
+      -DUSE_NUKE=OFF
+      -DUSE_OPENCV=OFF
+      -DUSE_OPENGL=OFF
+      -DUSE_OPENJPEG=OFF
+      -DUSE_OPENSSL=OFF
+      -DUSE_PTEX=OFF
+      -DUSE_QT=OFF
+    ]
+
+    mkdir "build-with-python2" do
+      system "cmake", "..", *args
+      system "make", "install"
+    end
+
+    # CMake picks up the system's python dylib, even if we have a brewed one.
+    py3ver = Language::Python.major_minor_version "python3"
+    py3prefix = Formula["python3"].opt_frameworks/"Python.framework/Versions/#{py3ver}"
+
+    ENV["PYTHONPATH"] = lib/"python#{py3ver}/site-packages"
+
+    args << "-DPYTHON_EXECUTABLE=#{py3prefix}/bin/python3"
+    args << "-DPYTHON_LIBRARY=#{py3prefix}/lib/libpython#{py3ver}.dylib"
+    args << "-DPYTHON_INCLUDE_DIR=#{py3prefix}/include/python#{py3ver}m"
+
+    # CMake picks up boost-python instead of boost-python3
+    args << "-DBOOST_ROOT=#{Formula["boost"].opt_prefix}"
+    args << "-DBoost_PYTHON_LIBRARIES=#{Formula["boost-python3"].opt_lib}/libboost_python3-mt.dylib"
+
+    # This is strange, but must be set to make the hack above work
+    args << "-DBoost_PYTHON_LIBRARY_DEBUG=''"
+    args << "-DBoost_PYTHON_LIBRARY_RELEASE=''"
+
+    # Need to make a second build dir, otherwise cmake picks up cached files
+    # and builds against `boost-python`
+    mkdir "build-with-python3" do
+      system "cmake", "..", *args
+      system "make", "install"
+    end
+  end
+
+  test do
+    test_image = test_fixtures("test.jpg")
+    assert_match "#{test_image} :    1 x    1, 3 channel, uint8 jpeg",
+                 shell_output("#{bin}/oiiotool --info #{test_image} 2>&1")
+
+    ["python", "python3"].each do |python|
+      output = <<~EOS
+        from __future__ import print_function
+        import OpenImageIO
+        print(OpenImageIO.VERSION_STRING)
+      EOS
+      assert_match version.to_s, pipe_output(python, output, 0)
+    end
+  end
+end