Add Github Action for ulwgl_*.py files (#26)

workflows: add Github Action for ulwgl_*.py files

.github/workflows/ulwgl-python.yml

@@ -0,0 +1,36 @@
+name: ULWGL-launcher workflow
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+permissions:
+  contents: read
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        # tomllib requires Python 3.11
+        version: ["3.11", "3.12"]
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up Python 3.11
+      uses: actions/setup-python@v5
+      with:
+        python-version: ${{ matrix.version }}
+    - name: Install dependencies
+      run: |
+        python3 -m pip install --upgrade pip
+    - name: Lint ulwgl_*.py files with Ruff
+      run: |
+        pip install ruff
+        ruff --output-format github ulwgl_*.py
+    - name: Test with unittest
+      run: |
+        python3 ulwgl_test.py

ulwgl_test.py

@@ -64,9 +64,14 @@ class TestGameLauncher(unittest.TestCase):
     def test_game_drive_empty(self):
         """Test enable_steam_game_drive.
 
-        Empty WINE prefixes can be created by passing an empty string to --exe
+        WINE prefixes can be created by passing an empty string
+        Example:
+        WINEPREFIX= PROTONPATH= GAMEID= ulwgl-run ""
+
         During this process, we attempt to prepare setting up game drive and set the values for STEAM_RUNTIME_LIBRARY_PATH and STEAM_COMPAT_INSTALL_PATHS
         The resulting value of those variables should be colon delimited string with no leading colons and contain only /usr/lib or /usr/lib32
+
+        Ignores LD_LIBRARY_PATH, relevant to Game Drive, which is sourced in Ubuntu and maybe its derivatives
         """
         args = None
         result_gamedrive = None
@@ -86,9 +91,20 @@ class TestGameLauncher(unittest.TestCase):
             ulwgl_run.setup_pfx(self.env["WINEPREFIX"])
             # Env
             ulwgl_run.set_env(self.env, args)
+
+            # Some distributions source this variable (e.g. Ubuntu) and will be added to the result of STEAM_RUNTIME_LIBRARY_PATH
+            # Only test the case without it set
+            if "LD_LIBRARY_PATH" in os.environ:
+                os.environ.pop("LD_LIBRARY_PATH")
+
             # Game drive
             result_gamedrive = ulwgl_plugins.enable_steam_game_drive(self.env)
 
+        # Ubuntu sources this variable and will be added once Game Drive is enabled
+        # Just test the case without it
+        if "LD_LIBRARY_PATH" in os.environ:
+            os.environ.pop("LD_LIBRARY_PATH")
+
         for key, val in self.env.items():
             os.environ[key] = val
 
@@ -99,7 +115,7 @@ class TestGameLauncher(unittest.TestCase):
             "Expected two elements in STEAM_RUNTIME_LIBRARY_PATHS",
         )
 
-        # We just expect /usr/lib and /usr/lib32
+        # We just expect /usr/lib and /usr/lib32 since LD_LIBRARY_PATH is unset
         self.assertEqual(
             len(self.env["STEAM_RUNTIME_LIBRARY_PATH"].split(":")),
             2,