Plantilla de revisión de código de Gitlab

• •Punto final de HTTP Webhook (n8n generará automáticamente)
• •Pueden requerirse credenciales de autenticación para la API de destino
• •Clave de API de Google Gemini

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      "name": "Extraer ID de incidencia JIRA",
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      "credentials": {
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        "options": {
          "includeUnpaired": true
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        "options": {},
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              "name": "PRIVATE-TOKEN",
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      ],
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      "webhookId": "REPLACE_WITH_UNIQUE_ID",
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      "parameters": {
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        "jsCode": "const parseLastDiff = (gitDiff) => {\n  gitDiff = gitDiff.replace(/\\n\\\\ No newline at end of file/, '')\n  \n  const diffList = gitDiff.trimEnd().split('\\n').reverse();\n  const lastLineFirstChar = diffList?.[0]?.[0];\n  const lastDiff =\n    diffList.find((item) => {\n      return /^@@ \\-\\d+,\\d+ \\+\\d+,\\d+ @@/g.test(item);\n    }) || '';\n\n  const [lastOldLineCount, lastNewLineCount] = lastDiff\n    .replace(/@@ \\-(\\d+),(\\d+) \\+(\\d+),(\\d+) @@.*/g, ($0, $1, $2, $3, $4) => {\n      return `${+$1 + +$2},${+$3 + +$4}`;\n    })\n    .split(',');\n  \n  if (!/^\\d+$/.test(lastOldLineCount) || !/^\\d+$/.test(lastNewLineCount)) {\n    return {\n      lastOldLine: -1,\n      lastNewLine: -1,\n      gitDiff,\n    };\n  }\n\n\n  const lastOldLine = lastLineFirstChar === '+' ? null : (parseInt(lastOldLineCount) || 0) - 1;\n  const lastNewLine = lastLineFirstChar === '-' ? null : (parseInt(lastNewLineCount) || 0) - 1;\n\n  return {\n    lastOldLine,\n    lastNewLine,\n    gitDiff,\n  };\n};\n\nconst extra = parseLastDiff($json.changes.diff);\nreturn { ...$json, ...extra };"
      },
      "typeVersion": 2
    },
    {
      "id": "601bc26b-1349-499c-a4eb-f08e3a064503",
      "name": "Publicar sin problemas encontrados",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        800,
        1212
      ],
      "parameters": {
        "url": "=https://gitlab.com/api/v4/projects/{{ $json.projectId }}/merge_requests/{{ $json.mrId }}/notes",
        "method": "POST",
        "options": {},
        "sendBody": true,
        "sendHeaders": true,
        "bodyParameters": {
          "parameters": [
            {
              "name": "body",
              "value": "=🤖 AI review complete. No significant issues were found. LGTM!"
            }
          ]
        },
        "headerParameters": {
          "parameters": [
            {
              "name": "PRIVATE-TOKEN",
              "value": "={{$env.GITLAB_TOKEN}}"
            }
          ]
        }
      },
      "typeVersion": 4.2
    },
    {
      "id": "aa200c64-05c9-4437-8f18-980642e4ec6c",
      "name": "Publicar error ocurrido",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        800,
        1692
      ],
      "parameters": {
        "url": "=https://gitlab.com/api/v4/projects/{{ $json.projectId }}/merge_requests/{{ $json.mrId }}/notes",
        "method": "POST",
        "options": {},
        "sendBody": true,
        "sendHeaders": true,
        "bodyParameters": {
          "parameters": [
            {
              "name": "body",
              "value": "=🤖 An error occurred during the code review: {{ $json.error }}. Please trigger the review again."
            }
          ]
        },
        "headerParameters": {
          "parameters": [
            {
              "name": "PRIVATE-TOKEN",
              "value": "={{$env.GITLAB_TOKEN}}"
            }
          ]
        }
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      "typeVersion": 4.2
    },
    {
      "id": "e108c8b4-e8bb-4c43-aa01-0aa2cb70e83c",
      "name": "Obtener contexto estático incluyendo error",
      "type": "n8n-nodes-base.code",
      "position": [
        576,
        1692
      ],
      "parameters": {
        "jsCode": "const workflowStaticData = $getWorkflowStaticData('global');\nconst executionId = $input.first().json.execution.id;\nconst errorMessage = $input.first().json.execution.error.message;\n\nreturn {...workflowStaticData[executionId], error: errorMessage};"
      },
      "typeVersion": 2
    },
    {
      "id": "1afcd3cf-8d54-4e11-8518-a82f246023ec",
      "name": "Obtener contexto estático",
      "type": "n8n-nodes-base.code",
      "position": [
        576,
        1212
      ],
      "parameters": {
        "jsCode": "const workflowStaticData = $getWorkflowStaticData('global');\nconst executionId = $execution.id;\nreturn workflowStaticData[executionId];"
      },
      "typeVersion": 2
    },
    {
      "id": "21c6891d-1a57-4c4b-b7c4-41d84b20b744",
      "name": "Limpiar contexto estático",
      "type": "n8n-nodes-base.code",
      "position": [
        1024,
        1504
      ],
      "parameters": {
        "jsCode": "const workflowStaticData = $getWorkflowStaticData('global');\nconst executionId = $execution.id;\ndelete workflowStaticData[executionId];\nreturn [];"
      },
      "typeVersion": 2
    },
    {
      "id": "1d97e536-a1c5-4520-a078-fb06baa377c4",
      "name": "Procesar comentarios",
      "type": "n8n-nodes-base.code",
      "position": [
        -544,
        1408
      ],
      "parameters": {
        "jsCode": "const allItems = $input.first().json.data;\n\n// Filter for items that have actual review text\nconst commentsToPost = allItems.filter(item => {\n  const text = item.text || '';\n  const isNotEmpty = text.trim() !== '';\n  const isNotClear = !text.includes('ALL_CLEAR');\n  const isNotNoFindings = !text.toLowerCase().includes('no findings');\n  const isNotNoIssues = !text.toLowerCase().includes('no issues found');\n  return isNotEmpty && isNotClear && isNotNoFindings && isNotNoIssues;\n});\n\nreturn [{\n  json: {\n    commentsToPost: commentsToPost,\n    noIssuesFound: commentsToPost.length === 0\n  }\n}];"
      },
      "typeVersion": 2
    },
    {
      "id": "db40d370-1216-4f36-9d87-86f26524e4cd",
      "name": "Publicar comentarios MR Gitlab",
      "type": "n8n-nodes-base.httpRequest",
      "onError": "continueErrorOutput",
      "position": [
        352,
        1428
      ],
      "parameters": {
        "url": "=https://gitlab.com/api/v4/projects/{{ $json.commentsToPost.project_id }}/merge_requests/{{ $json.commentsToPost.iid }}/discussions",
        "method": "POST",
        "options": {},
        "jsonBody": "={{ $json.requestBody }}",
        "sendBody": true,
        "sendHeaders": true,
        "specifyBody": "json",
        "headerParameters": {
          "parameters": [
            {
              "name": "PRIVATE-TOKEN",
              "value": "={{$env.GITLAB_TOKEN}}"
            }
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      },
      "retryOnFail": false,
      "typeVersion": 4.2
    },
    {
      "id": "eca87aa8-3d57-4513-a2d0-98d8cfcd1174",
      "name": "¡Pruébalo!",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -5264,
        1072
      ],
      "parameters": {
        "color": 6,
        "width": 640,
        "height": 288,
        "content": "### ⭐️ Try It Out!\n\nWelcome! This template adds AI-powered code reviews to your GitLab Merge Requests. Simply comment **`ai-review`** on any MR and watch the workflow:\n\n- Captures the comment event.\n- Fetches diff & optional JIRA context.\n- Asks an LLM for insights.\n- Posts inline comments or an 'all clear' note.\n\nPerfect for catching logic, security and performance issues fast."
      },
      "typeVersion": 1
    },
    {
      "id": "9bf7c660-9b1d-430c-95e9-37e89aae852d",
      "name": "Paso 1: Escuchar y capturar",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -4480,
        1488
      ],
      "parameters": {
        "color": 2,
        "width": 600,
        "height": 232,
        "content": "### 🟢 Step 1: Listen & Capture\n\nA Webhook node listens for merge request note events. When the comment text matches your trigger (default: `ai-review`), it:\n\n- Extracts the Project & MR IDs and stores them in a **Static Context** (see below) so later nodes always know where to post results.\n- Posts a short \"AI review started\" message back to the MR to let reviewers know the bot is working."
      },
      "typeVersion": 1
    },
    {
      "id": "f2e6745f-cb17-4d0c-a5c9-c3031759100a",
      "name": "Paso 2: Preparar y revisar",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -2432,
        960
      ],
      "parameters": {
        "color": 4,
        "width": 600,
        "height": 280,
        "content": "### 🟣 Step 2: Prepare & Review\n\nThe workflow fetches the merge request changes via the GitLab API and parses the diff into original vs new code blocks.\n\nIf the MR description contains a Jira key, the workflow fetches the issue summary and, if it's a subtask, also fetches the parent ticket for extra context. Both summaries are combined into the prompt.\n\nAn LLM (Gemini by default) is prompted to find critical issues only—logic bugs, security flaws and performance problems—and to return comments with file and line numbers. If no issues exist, the model returns `ALL_CLEAR`."
      },
      "typeVersion": 1
    },
    {
      "id": "1bd4a994-6826-4b49-87a8-9214508b94c8",
      "name": "Paso 3: Publicar y respaldo",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        1232,
        1456
      ],
      "parameters": {
        "color": 5,
        "width": 600,
        "height": 184,
        "content": "### 🟠 Step 3: Post & Fallback\n\nReview comments are converted into GitLab discussion payloads and posted back to the MR at the correct file and line positions.\n\nIf a comment’s position is not calculated properly, the workflow falls back to posting a comment as a thread at the MR level so nothing is lost."
      },
      "typeVersion": 1
    },
    {
      "id": "2d50734d-8c63-4a52-8459-2719710ca2a6",
      "name": "Contexto estático y manejo de errores",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -96,
        1904
      ],
      "parameters": {
        "width": 600,
        "height": 216,
        "content": "### 🔵 Static Context & Error Handling\n\nWorkflow Static Data is used to store persistent values—like the project ID and the MR ID so that they will be available across branches.\n\nThis is critical for the Error Trigger: if something fails, the error path can still post to the correct MR using these stored IDs. Without static context, error comments wouldn’t know where to go."
      },
      "typeVersion": 1
    },
    {
      "id": "223b57bd-6ea3-4e32-ad29-9fec88550b1b",
      "name": "Necesita ayuda y personalizar",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -1504,
        1744
      ],
      "parameters": {
        "color": 7,
        "width": 600,
        "height": 168,
        "content": "### 🟡 Need Help & Customise\n\n- Change the trigger word in the **IF** node to match your own.\n- Swap in your preferred LLM or adjust the prompt to suit your guidelines.\n- Filter by file type or exclude certain directories in the parsing logic."
      },
      "typeVersion": 1
    },
    {
      "id": "917539f7-c7a2-48a4-9227-93287eeeded9",
      "name": "Publicar comentarios MR Gitlab sin posición",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        800,
        1500
      ],
      "parameters": {
        "url": "=https://gitlab.com/api/v4/projects/{{ $json.commentsToPost.project_id }}/merge_requests/{{ $json.commentsToPost.iid }}/discussions",
        "method": "POST",
        "options": {},
        "jsonBody": "={{ $json.requestBody }}",
        "sendBody": true,
        "sendHeaders": true,
        "specifyBody": "json",
        "headerParameters": {
          "parameters": [
            {
              "name": "PRIVATE-TOKEN",
              "value": "={{$env.GITLAB_TOKEN}}"
            }
          ]
        }
      },
      "retryOnFail": false,
      "typeVersion": 4.2
    }
  ],
  "active": false,
  "pinData": {},
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