GitLab MCP Server

Instructions

Implementation Reference

• src/gitlab_mcp/server.py:334-358 (handler)

  MCP tool registration and handler implementation for merge_merge_request.

  @mcp.tool()
  def merge_merge_request(project_id: int | str, mr_iid: int,
                          merge_commit_message: str = None,
                          should_remove_source_branch: bool = False) -> str:
      """合併 Merge Request
  
      Args:
          project_id: 專案 ID 或路徑
          mr_iid: MR 的 IID
          merge_commit_message: 自訂合併 commit 訊息
          should_remove_source_branch: 合併後是否刪除來源分支
      """
      try:
          client = get_client()
          mr = client.merge_merge_request(
              project_id, mr_iid,
              merge_commit_message=merge_commit_message,
              should_remove_source_branch=should_remove_source_branch
          )
          result = f"✓ MR !{mr['iid']} 已合併 — {mr['title']}"
          if should_remove_source_branch:
              result += f"\n來源分支 {mr.get('source_branch', '')} 已標記刪除"
          return result
      except GitLabAPIError as e:
          return f"合併 MR 失敗: {str(e)}"

• src/gitlab_mcp/gitlab_client.py:234-250 (handler)

  GitLab client method to perform the API request to merge a merge request.

  def merge_merge_request(
      self,
      project_id: int | str,
      mr_iid: int,
      merge_commit_message: str = None,
      should_remove_source_branch: bool = False,
  ) -> dict:
      """PUT /projects/:id/merge_requests/:iid/merge"""
      pid = self._resolve_project_id(project_id)
      data = {}
      if merge_commit_message:
          data["merge_commit_message"] = merge_commit_message
      if should_remove_source_branch:
          data["should_remove_source_branch"] = True
      return self._put_json(
          f"/projects/{pid}/merge_requests/{mr_iid}/merge", data=data
      )