Only run check-manifest if using setuptools

Author: blink1073

jupyter_releaser/cli.py

@@ -448,7 +448,8 @@ def check_npm(dist_dir, npm_install_options):
 @use_checkout_dir()
 def check_manifest():
     """Check the project manifest"""
-    if util.PYPROJECT.exists() or util.SETUP_PY.exists():
+    # Only run the check if we're using setuptools
+    if util.SETUP_PY.exists() or util.MANIFEST.exists():
         util.run("check-manifest -v")
     else:
         util.log("Skipping check-manifest since there are no python package files")

jupyter_releaser/util.py

@@ -31,6 +31,7 @@
 SETUP_PY = Path("setup.py")
 SETUP_CFG = Path("setup.cfg")
 PACKAGE_JSON = Path("package.json")
+MANIFEST = Path("MANIFEST.in")
 YARN_LOCK = Path("yarn.lock")
 JUPYTER_RELEASER_CONFIG = Path(".jupyter-releaser.toml")