fix(gtea): test_git_push: auto_init repo + direct URL push

Empty-repo HTTPS push with git clone exits 0 but silently fails (remote
branch creation on an empty clone is unreliable). Fix:
- Create repo with auto_init=True + default_branch=main (initial commit present)
- Clone into a non-existing subdir (git clone must target non-existing path)
- Push via explicit cred_url (bypasses remote config; no tracking needed)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

tests/gitea/custom/test_git_push.py

@@ -70,18 +70,18 @@ def test_git_push(live_app):
     user, password = admin_creds(live_app)
     repo_name = "ci-test-push"
 
-    # 1. Create test repo
+    # 1. Create test repo (auto_init adds an initial commit so the branch exists)
     status, body = _api(
         live_app, "/user/repos", method="POST",
-        body={"name": repo_name, "private": False, "auto_init": False},
+        body={"name": repo_name, "private": False, "auto_init": True, "default_branch": "main"},
         user=user, password=password,
     )
     assert status == 201, f"repo create HTTP {status}: {body}"
-    # Embed credentials directly in the URL so clone + push both work without
-    # a separate credential helper. Password is a 32-char hex string (URL-safe).
+    # Embed credentials directly in the URL (password is 32-char hex, URL-safe).
     cred_url = f"https://{user}:{password}@{live_app}/{user}/{repo_name}.git"
 
-    tmpdir = tempfile.mkdtemp(prefix="ccci-gitea-push-")
+    tmpdir = tempfile.mkdtemp(prefix="ccci-gitea-push-parent-")
+    repo_dir = os.path.join(tmpdir, "repo")
     try:
         git_env = {
             "GIT_AUTHOR_NAME": "CI Test Bot",
@@ -92,19 +92,18 @@ def test_git_push(live_app):
             "GIT_TERMINAL_PROMPT": "0",
         }
 
-        # 2. Clone (empty repo)
-        _run_git(["clone", cred_url, tmpdir], cwd="/tmp", env=git_env)
-        _run_git(["checkout", "-b", "main"], cwd=tmpdir, env=git_env)
+        # 2. Clone into a fresh subdirectory (git clone must target a non-existing path)
+        _run_git(["clone", cred_url, repo_dir], cwd="/tmp", env=git_env)
 
-        # 3. Commit a file
-        readme = os.path.join(tmpdir, "README.md")
+        # 3. Commit a new file on top of the initial commit
+        readme = os.path.join(repo_dir, "ci-test.txt")
         with open(readme, "w") as f:
             f.write(f"# {repo_name}\n\nAutomated ci push test.\n")
-        _run_git(["add", "README.md"], cwd=tmpdir, env=git_env)
-        _run_git(["commit", "-m", "test: automated push test"], cwd=tmpdir, env=git_env)
+        _run_git(["add", "ci-test.txt"], cwd=repo_dir, env=git_env)
+        _run_git(["commit", "-m", "test: automated push test"], cwd=repo_dir, env=git_env)
 
-        # 4. Push
-        _run_git(["push", "origin", "HEAD:main"], cwd=tmpdir, env=git_env)
+        # 4. Push via explicit URL so credentials are applied regardless of remote config
+        _run_git(["push", cred_url, "HEAD:refs/heads/main"], cwd=repo_dir, env=git_env)
 
         # 5. Verify commit landed via API
         status, commits = _api(
@@ -117,6 +116,6 @@ def test_git_push(live_app):
             f"Unexpected commit message: {commit_msg!r}"
         )
     finally:
-        shutil.rmtree(tmpdir, ignore_errors=True)
+        shutil.rmtree(tmpdir, ignore_errors=True)  # removes parent + repo subdir
         # 6. Cleanup — delete the test repo
         _api(live_app, f"/repos/{user}/{repo_name}", method="DELETE", user=user, password=password)