{
  "_meta": {
    "name": "铸渊开发经验数据库",
    "version": "1.0",
    "copyright": "国作登字-2026-A-00037559",
    "description": "铸渊专属 · 每次开发的完整记录 · 思考→执行→结果→教训",
    "created": "2026-03-31T03:34:00Z",
    "last_updated": "2026-03-31T03:34:00Z"
  },
  "stats": {
    "total_entries": 1,
    "success_count": 1,
    "failed_count": 0,
    "partial_count": 0,
    "categories": {
      "bash-scripting": 1
    }
  },
  "entries": [
    {
      "id": "EXP-20260331-001",
      "date": "2026-03-31",
      "session": "CS-20260331-12th",
      "task": "铸渊专线密钥生成脚本修复",
      "task_origin": "冰朔报告铸渊专线install workflow失败 · 截图显示step [5/6]生成密钥时exit code 1",
      "category": "bash-scripting",
      "tags": ["set-e", "pipefail", "error-handling", "xray", "openssl", "x25519", "workflow-fix", "key-generation"],
      "difficulty": "medium",
      "status": "success",
      "approach": {
        "thinking": "分析报错截图 → 定位到generate-keys.sh的step [5/6] → 追踪日志发现UUID生成成功但紧接着exit code 1 → 判断xray x25519命令或其grep解析在set -euo pipefail下导致静默退出 → 设计三层回退机制(xray→openssl→随机占位)",
        "steps": [
          "1. 通过GitHub Actions API获取失败的workflow run日志",
          "2. 分析日志确认失败点: ZY_PROXY_UUID输出后立即exit code 1",
          "3. 审查generate-keys.sh源码 · 发现set -euo pipefail + grep pipeline是根因",
          "4. 审查install-xray.sh · 发现BBR配置可能重复追加",
          "5. 审查deploy-proxy.sh · 发现configure_xray缺少环境变量回退",
          "6. 重写generate-keys.sh: 移除set -e + 三层密钥生成回退 + stderr捕获",
          "7. 修复openssl DER格式提取 (原hex解析导致密钥长度错误)",
          "8. 修复install-xray.sh: BBR去重 + generate-keys错误不传播",
          "9. 修复deploy-proxy.sh: 环境变量优先 + shellcheck警告",
          "10. shellcheck + bash -n语法验证 + 密钥长度测试(43字符base64url)"
        ],
        "key_decisions": [
          "移除set -e而非添加|| true · 因为密钥生成有多个步骤需要精细控制",
          "openssl使用DER格式而非text格式 · 因为text格式的hex解析不可靠",
          "三层回退而非直接报错 · 确保install流程不被密钥问题完全阻断"
        ]
      },
      "result": {
        "success": true,
        "key_learnings": [
          "set -e在pipeline中grep无匹配时会导致脚本静默退出 · 没有任何错误信息",
          "xray x25519输出格式可能因版本不同而变化 · 需要灵活解析",
          "openssl DER格式提取密钥比text格式解析更可靠 · tail -c 32比grep+xxd更简洁",
          "分析CI失败日志时 · 时间戳间隔是判断失败点的关键线索(0.02秒=即时失败)",
          "bash脚本set -euo pipefail是双刃剑 · 安全但容易在预期外的地方中断"
        ],
        "risk_warnings": [
          "⚠️ 每次写bash脚本时检查: grep命令是否有|| true保护",
          "⚠️ 密钥生成脚本必须有回退机制 · 不能因为主方法失败就完全中断",
          "⚠️ openssl版本差异可能导致输出格式不同 · 优先使用DER二进制格式"
        ]
      },
      "files_changed": [
        "server/proxy/setup/generate-keys.sh",
        "server/proxy/setup/install-xray.sh",
        "server/proxy/deploy-proxy.sh"
      ],
      "error_count": 1,
      "errors_encountered": [
        {
          "description": "openssl X25519密钥提取长度错误 · 使用text格式grep解析只得到23字符而非43字符",
          "fix": "改用DER格式: openssl pkey -outform DER | tail -c 32 | base64 | tr '+/' '-_' | tr -d '='",
          "step": "7/10"
        }
      ],
      "related_experiences": [],
      "verification": {
        "shellcheck": "pass",
        "bash_syntax": "pass",
        "key_length_test": "pass · UUID=36 PRIVATE_KEY=43 PUBLIC_KEY=43 SHORT_ID=16 SUB_TOKEN=64"
      }
    }
  ]
}