sdformat14: support multiple python versions

Formula/sdformat14.rb

@@ -4,49 +4,76 @@ class Sdformat14 < Formula
   url "https://osrf-distributions.s3.amazonaws.com/sdformat/releases/sdformat-14.5.0.tar.bz2"
   sha256 "4b0a99a51378a73e0e3bc209c244eff127ded55a3724d614b8cf051e7d905273"
   license "Apache-2.0"
-  revision 1
+  revision 2
 
   head "https://github.com/gazebosim/sdformat.git", branch: "main"
 
   bottle do
     root_url "https://osrf-distributions.s3.amazonaws.com/bottles-simulation"
-    sha256 sonoma:   "a86f783aae1361e4646bbfe3c9704efdfbf3a432175d1110787c26b26a848b4f"
-    sha256 ventura:  "356dd92e2367af5ddebce7d1708ac7c8982e80855d2dd5ef4cdea35f9386129c"
-    sha256 monterey: "6c4252571144290e9561d79393699940e5a1363a4cd4ee83d9607fd5b5c5c270"
+    sha256 sonoma:  "3c4e3786e5fbd1017b300fcebf8c092f84216a052f27c9e0228ecd81281384d0"
+    sha256 ventura: "cc4c31cf4369892f763f39d995d287c88731aeb1416d13e2acfc0e0e197445d8"
   end
 
   depends_on "cmake" => [:build, :test]
   depends_on "pkg-config" => [:build, :test]
   depends_on "pybind11" => :build
+  depends_on "[email protected]" => [:build, :test]
+  depends_on "[email protected]" => [:build, :test]
 
   depends_on "doxygen"
   depends_on "gz-cmake3"
   depends_on "gz-math7"
   depends_on "gz-tools2"
   depends_on "gz-utils2"
   depends_on macos: :mojave # c++17
-  depends_on "[email protected]"
   depends_on "tinyxml2"
   depends_on "urdfdom"
 
-  def python_cmake_arg
-    "-DPython3_EXECUTABLE=#{which("python3")}"
+  patch do
+    # Support building python bindings against external sdformat library part 1
+    # Remove this patch with the next release
+    url "https://github.com/gazebosim/sdformat/commit/dcd3cd61402a2278db3ac021442a6e7458fa79b9.patch?full_index=1"
+    sha256 "2f92c942ccb4e474d086e57cf7089e5aac3b26217a2b2304c7aadc5c34a354f5"
+  end
+
+  patch do
+    # Support building python bindings against external sdformat library part 2
+    # Remove this patch with the next release
+    url "https://github.com/gazebosim/sdformat/commit/91d9029b867a35349b3be85dbe9333feeb2b503c.patch?full_index=1"
+    sha256 "6ee0532d398b67de5004c321bdbe9a6d0f7d232c9cabfaf4a8468f2e967d7b77"
+  end
+
+  def pythons
+    deps.map(&:to_formula)
+        .select { |f| f.name.match?(/^python@3\.\d+$/) }
+  end
+
+  def python_cmake_arg(python = Formula["[email protected]"])
+    "-DPython3_EXECUTABLE=#{python.opt_libexec}/bin/python"
   end
 
   def install
     cmake_args = std_cmake_args
     cmake_args << "-DBUILD_TESTING=Off"
     cmake_args << "-DCMAKE_INSTALL_RPATH=#{rpath}"
-    cmake_args << python_cmake_arg
 
-    # Use a build folder
+    # first build without python bindings
     mkdir "build" do
-      system "cmake", "..", *cmake_args
+      system "cmake", "..", *cmake_args, "-DSKIP_PYBIND11=ON"
       system "make", "install"
     end
 
-    (lib/"python3.12/site-packages").install Dir[lib/"python/*"]
-    rmdir prefix/"lib/python"
+    # now build only the python bindings
+    pythons.each do |python|
+      # remove @ from formula name
+      python_name = python.name.tr("@", "")
+      mkdir "build_#{python_name}" do
+        system "cmake", "../python", *cmake_args, python_cmake_arg(python)
+        system "make", "install"
+        (lib/"#{python_name}/site-packages").install Dir[lib/"python/*"]
+        rmdir prefix/"lib/python"
+      end
+    end
   end
 
   test do
@@ -92,6 +119,8 @@ def install
     cmd_not_grep_xcode = "! grep -rnI 'Applications[/]Xcode' #{prefix}"
     system cmd_not_grep_xcode
     # check python import
-    system Formula["[email protected]"].opt_libexec/"bin/python", "-c", "import sdformat14"
+    pythons.each do |python|
+      system python.opt_libexec/"bin/python", "-c", "import sdformat14"
+    end
   end
 end