{"record":{"id":"5d14acc5b5891413","repo":"flipped-aurora/gin-vue-admin","slug":"s-w-5d14ac","errorCode":null,"errorMessage":"读取自动代码目标 %s 失败: %w","messagePattern":"读取自动代码目标 (.+?) 失败: %w","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"server/service/system/auto_code_task.go","lineNumber":131,"sourceCode":"\tfor index, target := range targets {\n\t\tkind, _ := layout.classify(target)\n\t\tcontent := normalizedFiles[target]\n\t\tfile := autoCodeTaskFile{\n\t\t\tTargetPath: target,\n\t\t\tKind:       kind,\n\t\t\tMode:       0o666,\n\t\t\tAfterHash:  hashAutoCodeContent(content),\n\t\t\tStagedPath: filepath.Join(stagingDir, fmt.Sprintf(\"%06d\", index)),\n\t\t}\n\t\tstat, statErr := os.Stat(target)\n\t\tswitch {\n\t\tcase statErr == nil:\n\t\t\tif !stat.Mode().IsRegular() {\n\t\t\t\treturn nil, fmt.Errorf(\"自动代码目标不是普通文件: %s\", target)\n\t\t\t}\n\t\t\tbefore, readErr := os.ReadFile(target)\n\t\t\tif readErr != nil {\n\t\t\t\treturn nil, fmt.Errorf(\"读取自动代码目标 %s 失败: %w\", target, readErr)\n\t\t\t}\n\t\t\tfile.Existed = true\n\t\t\tfile.Mode = stat.Mode().Perm()\n\t\t\tfile.BeforeContent = before\n\t\t\tfile.BeforeHash = hashAutoCodeContent(before)\n\t\tcase errors.Is(statErr, fs.ErrNotExist):\n\t\tdefault:\n\t\t\treturn nil, fmt.Errorf(\"检查自动代码目标 %s 失败: %w\", target, statErr)\n\t\t}\n\t\tif writeErr := replaceAutoCodeFileAtomically(file.StagedPath, content, file.Mode); writeErr != nil {\n\t\t\treturn nil, fmt.Errorf(\"写入自动代码 staging 失败: %w\", writeErr)\n\t\t}\n\t\ttask.files = append(task.files, file)\n\t}\n\treturn task, nil\n}\n\nfunc commitAutoCodeFileTask(task *autoCodeFileTask, publish autoCodeFilePublisher, persist func() error) error {","sourceCodeStart":113,"sourceCodeEnd":149,"githubUrl":"https://github.com/flipped-aurora/gin-vue-admin/blob/3136500ef380842b0eb6c4daa87c3f8a47fcf9e0/server/service/system/auto_code_task.go#L113-L149","documentation":"Returned when os.Stat succeeded (the target exists and is a regular file) but the subsequent os.ReadFile fails, for example due to permission denied (EACCES) or transient I/O errors. The original OS error is wrapped with %w, so errors.Is(err, fs.ErrPermission) etc. still work.","triggerScenarios":"Target file exists and is regular but the process lacks read permission; file sits on a failing/removed mount; the file was locked or truncated between Stat and ReadFile by another process; SELinux/AppArmor denies read on the path.","commonSituations":"Files created with restrictive modes (e.g. 0o600 owned by another user) inside the repo; container/user mismatch — server runs as a different UID than the workspace owner; NFS/CI volume glitches; secrets files deliberately unreadable to the service account.","solutions":["Fix read permission on the target: chmod u+r (or chown to the process user) so the server process can read the existing content.","Run the server under an account that owns or can read the workspace files (check UID in containers).","If the file's prior content is irrelevant/known, delete the file first so the task treats it as a fresh create (ErrNotExist branch) instead of reading it.","Inspect the wrapped cause with errors.Is(err, fs.ErrPermission) to confirm which OS-level failure occurred."],"exampleFix":"// before\n-rw------- 1 other dev 1024 server/service/foo.go  // server user cannot read\n// after\nchmod u+r server/service/foo.go  # or chown the server user\n# then retry the autocode task","handlingStrategy":"try-catch","validationCode":"func canReadTarget(target string) error {\n  info, err := os.Stat(target)\n  if err != nil {\n    if errors.Is(err, fs.ErrNotExist) {\n      return nil\n    }\n    return err\n  }\n  if !info.Mode().IsRegular() {\n    return fmt.Errorf(\"not a regular file: %s\", target)\n  }\n  f, err := os.Open(target)\n  if err != nil {\n    return fmt.Errorf(\"target not readable: %w\", err)\n  }\n  return f.Close()\n}","typeGuard":null,"tryCatchPattern":"// Inspect the wrapped OS error to branch on cause\nif err := svc.Create(c, req); err != nil {\n  switch {\n  case errors.Is(err, fs.ErrPermission):\n    return fmt.Errorf(\"fix read permission on target: %v\", err)\n  default:\n    return err\n  }\n}","preventionTips":["Run the server as a user that owns or can read the workspace (check UID/GID in containers).","Avoid 0o600 files owned by other accounts inside generation target directories.","Verify container/SELinux policies allow read access to the repo volume."],"tags":["go","filesystem","read-permission","io","autocode"],"backgroundTag":"read-permission-denied","analyzedSha":"3136500ef380842b0eb6c4daa87c3f8a47fcf9e0","analyzedAt":"2026-08-31T13:50:02.721Z","schemaVersion":2},"datasetVersion":"2026-08-31T19:17:28.585Z"}