Feature: [Actions] Create .zip for macOS build

.github/workflows/release.yml

@@ -496,6 +496,29 @@ jobs:
         cd build-x64
         ../os/macosx/notarize.sh
 
+    - name: Build zip
+      run: |
+        cd build-x64
+
+        pushd _CPack_Packages/*/Bundle/openttd-*/
+
+        # Remove the Applications symlink from the staging folder
+        rm -f Applications
+
+        # Remove the original dmg built by CPack to avoid a conflict when resolving
+        # the zip_filename variable below
+        rm -f ../*.dmg
+
+        zip_filename=(../openttd-*)
+
+        # Package up the existing, notarised .app into a zip file
+        zip -r -9 ${zip_filename}.zip OpenTTD.app
+
+        popd
+
+        # Now move it into place to be uploaded
+        mv _CPack_Packages/*/Bundle/openttd-*.zip bundles/
+
     - name: Store bundles
       uses: actions/upload-artifact@v2
       with:

os/macosx/notarize.sh

@@ -56,3 +56,13 @@ cat <<EOF > notarize.json
 EOF
 
 gon notarize.json
+
+app_filename=(_CPack_Packages/*/Bundle/openttd-*/OpenTTD.app)
+
+if [ "${app_filename}" = "_CPack_Packages/*/Bundle/openttd-*/OpenTTD.app" ]; then
+    echo "No .app found in the _CPack_Packages directory, skipping stapling."
+    exit 0
+fi;
+
+# Now staple the ticket to the .app
+xcrun stapler staple "${app_filename[0]}"