another attempt at arm64 MacOS support

.github/actions/macos-install.sh

@@ -4,14 +4,19 @@ echo "Xcode versionn:"
 xcodebuild -version
 export gampath=dist/gam
 rm -rf $gampath
-$python -OO -m PyInstaller --clean --noupx --strip -F --distpath $gampath gam.spec
-export gam="$gampath/gam"
+if [ "$PLATFORM" == "x86_64" ]; then
+    export specfile="gam.spec"
+else
+    export specfile="gam-universal2.spec"
+fi
+$python -OO -m PyInstaller --clean --noupx --strip -F --distpath "${gampath}" "${specfile}"
+export gam="${gampath}/gam"
 $gam version extended
 export GAMVERSION=`$gam version simple`
-cp LICENSE $gampath
-cp GamCommands.txt $gampath
+cp LICENSE "${gampath}"
+cp GamCommands.txt "${gampath}"
 MACOSVERSION=$(defaults read loginwindow SystemVersionStampAsString)
-GAM_ARCHIVE=gam-$GAMVERSION-$GAMOS-$PLATFORM-MacOS$MACOSVERSION.tar.xz
-rm $gampath/lastupdatecheck.txt
+GAM_ARCHIVE="gam-${GAMVERSION}-${GAMOS}-${PLATFORM}-MacOS${MACOSVERSION}.tar.xz"
+rm "${gampath}/lastupdatecheck.txt"
 # tar will cd to dist/ and tar up gam/
 tar -C dist/ --create --file $GAM_ARCHIVE --xz gam

src/gam-universal2.spec

@@ -0,0 +1,46 @@
+# -*- mode: python -*-
+
+import sys
+
+import importlib
+from PyInstaller.utils.hooks import copy_metadata
+
+sys.modules['FixTk'] = None
+
+# dynamically determine where httplib2/cacerts.txt lives
+proot = os.path.dirname(importlib.import_module('httplib2').__file__)
+extra_files = [(os.path.join(proot, 'cacerts.txt'), 'httplib2')]
+
+extra_files += copy_metadata('google-api-python-client')
+extra_files += [('cbcm-v1.1beta1.json', '.')]
+
+a = Analysis(['gam/__main__.py'],
+             hiddenimports=[],
+             hookspath=None,
+             excludes=['FixTk', 'tcl', 'tk', '_tkinter', 'tkinter', 'Tkinter'],
+             datas=extra_files,
+             runtime_hooks=None)
+
+for d in a.datas:
+    if 'pyconfig' in d[0]:
+        a.datas.remove(d)
+        break
+
+
+pyz = PYZ(a.pure)
+exe = EXE(pyz,
+          a.scripts,
+          a.binaries,
+          a.zipfiles,
+          a.datas,
+          name='gam',
+          debug=False,
+          strip=None,
+          upx=False,
+          console=True )
+
+app = BUNDLE(exe,
+             name='gam.app',
+             icon=None,
+             bundle_identifier=None,
+             info_plist={'LSArchitecturePriority': 'arm64,x86_64'})