fix: update_existing logic

Signed-off-by: Zack Koppert <[email protected]>

Author: zkoppert

evergreen.py

@@ -83,11 +83,19 @@ def main():  # pragma: no cover
         filename_list = [".github/dependabot.yaml", ".github/dependabot.yml"]
         dependabot_filename_to_use = filename_list[0]  # Default to the first filename
         for filename in filename_list:
-            existing_config = check_existing_config(repo, filename, update_existing)
+            existing_config = check_existing_config(repo, filename)
             if existing_config:
                 dependabot_filename_to_use = filename
                 break
 
+        if existing_config and not update_existing:
+            print(
+                "Skipping "
+                + repo.full_name
+                + " (dependabot file already exists and update_existing is False)"
+            )
+            continue
+
         if created_after_date and is_repo_created_date_before(
             repo.created_at, created_after_date
         ):
@@ -207,15 +215,14 @@ def is_dependabot_security_updates_enabled(owner, repo, access_token):
     return False
 
 
-def check_existing_config(repo, filename, update_existing):
+def check_existing_config(repo, filename):
     """
     Check if the dependabot file already exists in the
     repository and return the existing config if it does
 
     Args:
         repo (github3.repos.repo.Repository): The repository to check
         filename (str): The dependabot configuration filename to check
-        update_existing (bool): Whether to update existing dependabot configuration files
 
     Returns:
         github3.repos.contents.Contents | None: The existing config if it exists, otherwise None
@@ -224,14 +231,10 @@ def check_existing_config(repo, filename, update_existing):
     try:
         existing_config = repo.file_contents(filename)
         if existing_config.size > 0:
-            if not update_existing:
-                print(
-                    "Skipping " + repo.full_name + " (dependabot file already exists)"
-                )
-                return None
+            return existing_config
     except github3.exceptions.NotFoundError:
         pass
-    return existing_config
+    return None
 
 
 def enable_dependabot_security_updates(owner, repo, access_token):

test_evergreen.py

@@ -662,7 +662,7 @@ def test_check_existing_config_with_existing_config(self):
         filename = "dependabot.yaml"
         mock_repo.file_contents.return_value.size = 5
 
-        result = check_existing_config(mock_repo, filename, True)
+        result = check_existing_config(mock_repo, filename)
 
         self.assertIsNotNone(result)
 
@@ -676,21 +676,7 @@ def test_check_existing_config_without_existing_config(self):
             mock_response
         )
 
-        result = check_existing_config(mock_repo, "dependabot.yml", True)
-
-        self.assertIsNone(result)
-
-    def test_check_existing_config_with_existing_config_without_update_existing_set(
-        self,
-    ):
-        """
-        Test the case where there is an existing configuration but UPDATE_EXISTING is False
-        """
-        mock_repo = MagicMock()
-        filename = "dependabot.yaml"
-        mock_repo.file_contents.return_value.size = 5
-
-        result = check_existing_config(mock_repo, filename, False)
+        result = check_existing_config(mock_repo, "dependabot.yml")
 
         self.assertIsNone(result)