Try another way to indicate we're in CI

Author: chadrik

.github/workflows/wheel.yml

@@ -150,7 +150,7 @@ jobs:
       - name: Build wheels
         uses: pypa/cibuildwheel@d4a2945fcc8d13f20a1b99d461b8e844d5fc6e23 # v2.21.1
         env:
-          CIBW_ENVIRONMENT: OIIO_VALIDATE_STUBS="true"
+          CIBW_ENVIRONMENT_PASS_LINUX: GITHUB_ACTIONS
           CIBW_BUILD: ${{ matrix.python }}
           CIBW_ARCHS: ${{ matrix.arch }}
           CIBW_MANYLINUX_X86_64_IMAGE: ${{ matrix.manylinux }}

src/python/generate_stubs.py

@@ -180,7 +180,7 @@ def get_colored_diff(old_text: str, new_text: str):
     print(f"Renaming to {dest_path}")
     os.rename(source_path, dest_path)
 
-    if args.validate_path and os.environ.get("OIIO_VALIDATE_STUBS", "false").lower() == "true":
+    if args.validate_path and os.environ.get("GITHUB_ACTIONS", "false").lower() == "true":
         validate_path = pathlib.Path(args.validate_path)
         validate_path = validate_path.joinpath("OpenImageIO", "__init__.pyi")