feat: smart git URL parsing for browser URLs

- Add git URL parsing utilities (extract_base_repo_url, parse_git_url)
- Support GitHub, GitLab, Bitbucket browser URL detection
- Add /projects/repositories/parse-url endpoint
- Enhance repository creation to detect browser URLs and suggest corrections
- Add real-time URL validation in frontend with debouncing
- Show visual indicators (green/yellow/red) for URL validity
- Display inline suggestions with 'Use Suggested' button
- Add comprehensive unit tests for URL parsing
- Quality gates: ruff ✓, mypy ✓, typecheck ✓, lint ✓, build ✓

apps/api/src/api/git_repositories.py

@@ -14,6 +14,7 @@ from src.config import Settings
 from src.models.git_repository import GitRepository
 from src.models.project import Project
 from src.models.user import User
+from src.utils.git_url_parser import parse_git_url
 
 router = APIRouter(prefix="/projects", tags=["git-repositories"])
 
@@ -46,6 +47,21 @@ def _get_repo_path(user_id: uuid.UUID, project_id: uuid.UUID, name: str) -> str:
 class GitRepositoryCreate(BaseModel):
     name: str
     remote_url: str | None = None
+    force_original_url: bool = False
+
+
+class URLParseRequest(BaseModel):
+    url: str
+
+
+class URLParseResponse(BaseModel):
+    original_url: str
+    base_url: str | None
+    is_valid_clone_url: bool
+    needs_parsing: bool
+    host: str | None
+    message: str
+    error_code: str | None
 
 
 class GitRepositoryResponse(BaseModel):
@@ -63,75 +79,6 @@ class GitRepositoryResponse(BaseModel):
     updated_at: datetime
 
 
-@router.post("/{project_id}/repositories", response_model=GitRepositoryResponse, status_code=status.HTTP_201_CREATED)
-async def create_repository(
-    project_id: uuid.UUID,
-    data: GitRepositoryCreate,
-    user_id: uuid.UUID = Depends(get_current_user_id),
-    session: AsyncSession = Depends(get_db_session),
-) -> GitRepository:
-    _user = await _get_user(session, user_id)
-    _project = await _get_owned_project(project_id, user_id, session)
-
-    # Check for duplicate name
-    existing = await session.execute(
-        select(GitRepository).where(
-            GitRepository.project_id == project_id,
-            GitRepository.name == data.name,
-        )
-    )
-    if existing.scalar_one_or_none():
-        raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail="repository name already exists")
-
-    repo_path = _get_repo_path(user_id, project_id, data.name)
-
-    # Ensure parent directory exists
-    os.makedirs(os.path.dirname(repo_path), exist_ok=True)
-
-    if data.remote_url:
-        # Clone as mirror
-        try:
-            result = subprocess.run(
-                ["git", "clone", "--mirror", data.remote_url, repo_path],
-                capture_output=True,
-                text=True,
-                timeout=300,
-            )
-            if result.returncode != 0:
-                raise HTTPException(
-                    status_code=status.HTTP_400_BAD_REQUEST,
-                    detail=f"failed to clone repository: {result.stderr}",
-                )
-        except subprocess.TimeoutExpired:
-            raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail="clone operation timed out")
-        except FileNotFoundError:
-            raise HTTPException(status_code=status.HTTP_500_INTERNAL_SERVER_ERROR, detail="git command not found")
-    else:
-        # Init bare repo
-        try:
-            result = subprocess.run(
-                ["git", "init", "--bare", repo_path],
-                capture_output=True,
-                text=True,
-                check=True,
-            )
-        except FileNotFoundError:
-            raise HTTPException(status_code=status.HTTP_500_INTERNAL_SERVER_ERROR, detail="git command not found")
-
-    repo = GitRepository(
-        name=data.name,
-        path=repo_path,
-        project_id=project_id,
-        owner_id=user_id,
-        is_mirror=bool(data.remote_url),
-        remote_url=data.remote_url,
-    )
-    session.add(repo)
-    await session.commit()
-    await session.refresh(repo)
-    return repo
-
-
 @router.get("/{project_id}/repositories", response_model=list[GitRepositoryResponse])
 async def list_repositories(
     project_id: uuid.UUID,
@@ -168,3 +115,97 @@ async def delete_repository(
     await session.delete(repo)
     await session.commit()
     return Response(status_code=status.HTTP_204_NO_CONTENT)
+
+
+@router.post("/repositories/parse-url", response_model=URLParseResponse)
+async def parse_repository_url(data: URLParseRequest) -> URLParseResponse:
+    """Parse a git URL and detect if it's a browser URL that needs correction."""
+    result = parse_git_url(data.url)
+    return URLParseResponse(**result)
+
+
+@router.post("/{project_id}/repositories", response_model=GitRepositoryResponse, status_code=status.HTTP_201_CREATED)
+async def create_repository(
+    project_id: uuid.UUID,
+    data: GitRepositoryCreate,
+    user_id: uuid.UUID = Depends(get_current_user_id),
+    session: AsyncSession = Depends(get_db_session),
+) -> GitRepository:
+    _user = await _get_user(session, user_id)
+    _project = await _get_owned_project(project_id, user_id, session)
+
+    # Check for duplicate name
+    existing = await session.execute(
+        select(GitRepository).where(
+            GitRepository.project_id == project_id,
+            GitRepository.name == data.name,
+        )
+    )
+    if existing.scalar_one_or_none():
+        raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail="repository name already exists")
+
+    # Validate and potentially correct the URL
+    remote_url = data.remote_url
+    if remote_url and not data.force_original_url:
+        parse_result = parse_git_url(remote_url)
+        if parse_result["needs_parsing"] and parse_result["base_url"]:
+            raise HTTPException(
+                status_code=status.HTTP_422_UNPROCESSABLE_ENTITY,
+                detail={
+                    "message": "The provided URL appears to be a browser URL, not a git clone URL",
+                    "suggested_url": parse_result["base_url"],
+                    "original_url": remote_url,
+                    "error_code": "URL_NEEDS_PARSING",
+                },
+            )
+        # Use base_url if it was extracted (for URLs without .git suffix)
+        if parse_result["base_url"]:
+            remote_url = parse_result["base_url"]
+
+    repo_path = _get_repo_path(user_id, project_id, data.name)
+
+    # Ensure parent directory exists
+    os.makedirs(os.path.dirname(repo_path), exist_ok=True)
+
+    if remote_url:
+        # Clone as mirror
+        try:
+            result = subprocess.run(
+                ["git", "clone", "--mirror", remote_url, repo_path],
+                capture_output=True,
+                text=True,
+                timeout=300,
+            )
+            if result.returncode != 0:
+                raise HTTPException(
+                    status_code=status.HTTP_400_BAD_REQUEST,
+                    detail=f"failed to clone repository: {result.stderr}",
+                )
+        except subprocess.TimeoutExpired:
+            raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail="clone operation timed out")
+        except FileNotFoundError:
+            raise HTTPException(status_code=status.HTTP_500_INTERNAL_SERVER_ERROR, detail="git command not found")
+    else:
+        # Init bare repo
+        try:
+            result = subprocess.run(
+                ["git", "init", "--bare", repo_path],
+                capture_output=True,
+                text=True,
+                check=True,
+            )
+        except FileNotFoundError:
+            raise HTTPException(status_code=status.HTTP_500_INTERNAL_SERVER_ERROR, detail="git command not found")
+
+    repo = GitRepository(
+        name=data.name,
+        path=repo_path,
+        project_id=project_id,
+        owner_id=user_id,
+        is_mirror=bool(remote_url),
+        remote_url=remote_url,
+    )
+    session.add(repo)
+    await session.commit()
+    await session.refresh(repo)
+    return repo

apps/api/src/utils/git_url_parser.py

@@ -0,0 +1,228 @@
+"""Git URL parsing utilities to extract base repository URLs from browser URLs."""
+
+from urllib.parse import urlparse
+
+
+def extract_base_repo_url(url: str) -> str | None:
+    """Extract base repository URL from a browser/git URL.
+
+    Examples:
+        https://github.com/user/repo/tree/main → https://github.com/user/repo.git
+        https://github.com/user/repo.git → https://github.com/user/repo.git
+        git@github.com:user/repo.git → git@github.com:user/repo.git
+        https://gitlab.com/user/repo/-/blob/main/README.md → https://gitlab.com/user/repo.git
+
+    Returns None if URL doesn't match known patterns.
+    """
+    # Handle SSH URLs (pass through unchanged)
+    if url.startswith("git@"):
+        return url if url.endswith(".git") else f"{url}.git"
+
+    try:
+        parsed = urlparse(url)
+    except Exception:
+        return None
+
+    # Remove query parameters
+    url = f"{parsed.scheme}://{parsed.netloc}{parsed.path}"
+
+    # Extract host
+    host = parsed.netloc.lower()
+
+    # Split path
+    path_parts = [p for p in parsed.path.split("/") if p]
+
+    if not path_parts:
+        return None
+
+    # Determine host type and extract base
+    if "github.com" in host:
+        return _extract_github_url(url, path_parts)
+    elif "gitlab.com" in host:
+        return _extract_gitlab_url(url, path_parts)
+    elif "bitbucket.org" in host:
+        return _extract_bitbucket_url(url, path_parts)
+    else:
+        # Generic host - try basic extraction
+        return _extract_generic_url(url, path_parts)
+
+
+def _extract_github_url(url: str, path_parts: list[str]) -> str | None:
+    """Extract base repo URL from GitHub URL."""
+    # Need at least owner/repo
+    if len(path_parts) < 2:
+        return None
+
+    # Find the repo name (second path part)
+    # Remove trailing .git if present
+    repo_name = path_parts[1]
+    if repo_name.endswith(".git"):
+        repo_name = repo_name[:-4]
+
+    # Reconstruct base URL
+    base = f"https://github.com/{path_parts[0]}/{repo_name}"
+
+    # Add .git suffix
+    return f"{base}.git"
+
+
+def _extract_gitlab_url(url: str, path_parts: list[str]) -> str | None:
+    """Extract base repo URL from GitLab URL."""
+    # Need at least owner/repo
+    if len(path_parts) < 2:
+        return None
+
+    # Find the repo name (second path part)
+    repo_name = path_parts[1]
+    if repo_name.endswith(".git"):
+        repo_name = repo_name[:-4]
+
+    # Reconstruct base URL
+    base = f"https://gitlab.com/{path_parts[0]}/{repo_name}"
+
+    return f"{base}.git"
+
+
+def _extract_bitbucket_url(url: str, path_parts: list[str]) -> str | None:
+    """Extract base repo URL from Bitbucket URL."""
+    # Need at least owner/repo
+    if len(path_parts) < 2:
+        return None
+
+    # Find the repo name (second path part)
+    repo_name = path_parts[1]
+    if repo_name.endswith(".git"):
+        repo_name = repo_name[:-4]
+
+    # Reconstruct base URL
+    base = f"https://bitbucket.org/{path_parts[0]}/{repo_name}"
+
+    return f"{base}.git"
+
+
+def _extract_generic_url(url: str, path_parts: list[str]) -> str | None:
+    """Extract base repo URL from generic git host URL."""
+    # Need at least owner/repo
+    if len(path_parts) < 2:
+        return None
+
+    # Find the repo name (second path part)
+    repo_name = path_parts[1]
+    if repo_name.endswith(".git"):
+        repo_name = repo_name[:-4]
+
+    # Reconstruct base URL
+    parsed = urlparse(url)
+    base = f"{parsed.scheme}://{parsed.netloc}/{path_parts[0]}/{repo_name}"
+
+    return f"{base}.git"
+
+
+def is_valid_clone_url(url: str) -> bool:
+    """Check if URL is already a valid git clone URL.
+
+    A valid clone URL:
+    - Is an SSH URL (git@host:path)
+    - Ends with .git
+    - Has no browser-specific path segments
+    """
+    # SSH URLs are always valid
+    if url.startswith("git@"):
+        return True
+
+    try:
+        parsed = urlparse(url)
+    except Exception:
+        return False
+
+    path = parsed.path
+
+    # Must end with .git for HTTPS
+    if not path.endswith(".git"):
+        return False
+
+    # Check for browser-specific paths
+    browser_paths = ["/tree/", "/blob/", "/pull/", "/issues/", "/actions/",
+                     "-/tree/", "-/blob/", "-/merge_requests/",
+                     "/src/"]
+
+    for bp in browser_paths:
+        if bp in path:
+            return False
+
+    return True
+
+
+def parse_git_url(url: str) -> dict:
+    """Parse a git URL and return detailed information.
+
+    Returns:
+        {
+            "original_url": str,
+            "base_url": str | None,
+            "is_valid_clone_url": bool,
+            "needs_parsing": bool,
+            "host": str | None,
+            "message": str,
+            "error_code": str | None,
+        }
+    """
+    result = {
+        "original_url": url,
+        "base_url": None,
+        "is_valid_clone_url": False,
+        "needs_parsing": False,
+        "host": None,
+        "message": "",
+        "error_code": None,
+    }
+
+    # Check if empty
+    if not url or not url.strip():
+        result["message"] = "Please enter a URL"
+        result["error_code"] = "INVALID_URL"
+        return result
+
+    url = url.strip()
+
+    # Try to parse
+    try:
+        parsed = urlparse(url)
+    except Exception:
+        result["message"] = "Please enter a valid URL"
+        result["error_code"] = "INVALID_URL"
+        return result
+
+    # Extract host
+    if parsed.netloc:
+        result["host"] = parsed.netloc.lower()
+    elif url.startswith("git@"):
+        # SSH URL: git@host:path
+        parts = url.split(":", 1)
+        if len(parts) == 2:
+            result["host"] = parts[0].replace("git@", "")
+    else:
+        result["message"] = "Please enter a valid URL"
+        result["error_code"] = "INVALID_URL"
+        return result
+
+    # Check if already valid
+    if is_valid_clone_url(url):
+        result["base_url"] = url
+        result["is_valid_clone_url"] = True
+        result["needs_parsing"] = False
+        result["message"] = "Valid git repository URL"
+        return result
+
+    # Try to extract base URL
+    base = extract_base_repo_url(url)
+    if base:
+        result["base_url"] = base
+        result["needs_parsing"] = True
+        result["message"] = f"This looks like a browser URL. Did you mean: {base}?"
+        result["error_code"] = "URL_NEEDS_PARSING"
+    else:
+        result["message"] = "Could not parse this URL. Please enter a valid git repository URL."
+        result["error_code"] = "INVALID_URL"
+
+    return result