fc_bundle_py312_qt6: checkin in formula to work with qt6

Closes #601.

Signed-off-by: Chris <[email protected]>

Formula/fc_bundle_py312_qt6.rb

@@ -0,0 +1,85 @@
+class FcBundlePy312Qt6 < Formula
+  desc "Meta formula for bundling needed python modules"
+  homepage "https://www.freecadweb.org"
+  # Dummy URL since no source is being downloaded
+  url "file:///dev/null"
+  # this version works with the freecad v1rc2 release thus the 0.9.2 versioning
+  version "0.9.2"
+
+  # sha of file:///dev/null
+  sha256 "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
+
+  depends_on "freecad/freecad/[email protected]_py312_qt6"
+  depends_on "freecad/freecad/[email protected]_py312"
+  depends_on "freecad/freecad/[email protected]_py312"
+  depends_on "freecad/freecad/pybind11_py312"
+  depends_on "freecad/freecad/pyside6_py312" # pyside includes the shiboken2 module as well
+
+  resource "six" do
+    url "https://files.pythonhosted.org/packages/71/39/171f1c67cd00715f190ba0b100d606d440a28c93c7714febeca8b79af85e/six-1.16.0.tar.gz"
+    sha256 "1e61c37477a1626458e36f7b1d82aa5c9b094fa4802892072e49de9c60c4c926"
+  end
+
+  def install
+    # explicitly set python version
+    pyver = "3.12"
+
+    venv_dir = libexec/"vendor"
+
+    # Create a virtual environment
+    system "python3.12", "-m", "venv", venv_dir
+    venv_pip = venv_dir/"bin/pip"
+
+    # Install the six module using pip in the virtual environment
+    # certain freecad workbenches require the python six module
+    resource("six").stage do
+      system venv_pip, "install", "."
+    end
+
+    # Example: Read the contents of the .pth file into a variable
+    # shiboken2_pth_contents = \
+    # File.read("#{Formula["[email protected]"].opt_prefix}/lib/python#{pyver}/site-packages/shiboken2.pth").strip
+
+    coin3d_pivy_pth_contents =
+      File.read("#{Formula["[email protected]_py312_qt6"].opt_prefix}/lib/python#{pyver}/coin3d_py312_qt6-pivy.pth").strip
+    medfile_pth_contents =
+      File.read("#{Formula["[email protected]_py312"].opt_prefix}/lib/python#{pyver}/medfile.pth").strip
+    numpy_pth_contents =
+      File.read("#{Formula["[email protected]_py312"].opt_prefix}/lib/python#{pyver}/numpy.pth").strip
+    pybind11_pth_contents = File.read(
+      "#{Formula["pybind11_py312"].opt_prefix}/lib/python#{pyver}/site-packages/homebrew-pybind11.pth",
+    ).strip
+    pyside6_pth_contents =
+      File.read("#{Formula["pyside6_py312"].opt_prefix}/lib/python#{pyver}/pyside6.pth").strip
+
+    site_packages = Language::Python.site_packages("python3.12")
+    # {shiboken2_pth_contents}
+    pth_contents = <<~EOS
+      #{coin3d_pivy_pth_contents}
+      #{medfile_pth_contents}
+      #{numpy_pth_contents}
+      #{pybind11_pth_contents}
+      #{pyside6_pth_contents}
+      #{venv_dir}/lib/python#{pyver}/site-packages
+    EOS
+    (prefix/site_packages/"freecad-py-modules.pth").write pth_contents
+  end
+
+  def caveats
+    <<-EOS
+    this formula is required to get necessary python runtime deps
+    working with freecad
+    EOS
+  end
+
+  test do
+    # TODO: i think a more sane test is importing the python modules
+    # Check if the expected site-packages file exists
+    site_packages_file = prefix/"lib/python3.12/site-packages/freecad-py-modules.pth"
+    if site_packages_file.exist?
+      puts "Test: OK - freecad-py-modules.pth file exists"
+    else
+      onoe "Test: Error - freecad-py-modules.pth file not found"
+    end
+  end
+end