Bugfix: Ignore the 'default_branch' option

When specifying a default branch on a repository which is still empty, the execution
fails with the following error message:
'Cannot update default branch for an empty repository. Please init the repository and push first'

This change avoids that users have to debug this problem and/or create new repositories in
three steps (1. ‘create repo PR’, 2. add branch , 3. ‘set default branch’ PR).

Secondly this change adds a bit more detailed error-debug-output to simplify
debugging sitations.

Signed-off-by: Marc Schöchlin <[email protected]>

plugins/module_utils/github.py

@@ -224,7 +224,12 @@ def request(
                     error_data[key] = info[key]
 
             error_data["response"] = response or "no response"
-            error_data["body"] = body or "no body"
+            error_data["response_body"] = body or "no body"
+            error_data["request_url"] =  url
+            error_data["request_method"] =  method
+            if 'json' in kwargs:
+                error_data["request_body"] =  kwargs['json'] or 'no body'
+
             self.save_error(f"request failed {error_msg}: {error_data}")
         elif status == 404 and ignore_missing:
             return None
@@ -1126,6 +1131,15 @@ def _manage_repository(self, state, current=None, check_mode=False, **kwargs):
         owner = kwargs.pop('owner')
         repo_name = kwargs.pop('name')
         current_repo = current if current else self.get_repo(owner, repo_name, ignore_missing=True)
+
+        # When specifying a default branch on a repository which is still empty, the execution
+        # fails with the following error message:
+        # 'Cannot update default branch for an empty repository. Please init the repository and push first'
+        # Therefore we remove this option in that case.
+        if current_repo['size'] == 0:
+            del kwargs['default_branch']
+
+
         if not current_repo:
             changed = True
             if not check_mode: