new formula for python modules fc_bundle

Closes #454.

Signed-off-by: Chris <chris.r.jones.1983@gmail.com>

Formula/fc_bundle.rb

@@ -0,0 +1,42 @@
+class FcBundle < 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"
+  version "0.21.1"
+
+  # sha of file:///dev/null
+  sha256 "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
+
+  depends_on "freecad/freecad/pyside2@5.15.11"
+  depends_on "freecad/freecad/shiboken2@5.15.11"
+
+  def install
+    # explicitly set python version
+    pyver = "3.11"
+
+    # Read the contents of the .pth file into a variable
+    # shiboken2_pth_contents = \
+    # File.read("#{Formula["shiboken2@5.15.11"].opt_prefix}/lib/python#{pyver}/site-packages/shiboken2.pth").strip
+    pyside2_pth_contents = \
+      File.read("#{Formula["pyside2@5.15.11"].opt_prefix}/lib/python#{pyver}/site-packages/pyside2.pth").strip
+
+    site_packages = Language::Python.site_packages("python3.11")
+    # {shiboken2_pth_contents}
+    pth_contents = <<~EOS
+      #{pyside2_pth_contents}
+    EOS
+    (prefix/site_packages/"freecad-py-modules.pth").write pth_contents
+  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/python3.11/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