{"record":{"id":"f0972ee46b04c178","repo":"gastownhall/beads","slug":"ensureproxiedserverconfig-stat-s-w","errorCode":null,"errorMessage":"ensureProxiedServerConfig: stat %s: %w","messagePattern":"ensureProxiedServerConfig: stat (.+?): %w","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"cmd/bd/proxied_server.go","lineNumber":145,"sourceCode":"\t\tif err != nil {\n\t\t\treturn \"\", fmt.Errorf(\"ensureProxiedServerConfig: custom config %s: %w\", path, err)\n\t\t}\n\t\tif !info.Mode().IsRegular() {\n\t\t\treturn \"\", fmt.Errorf(\"ensureProxiedServerConfig: custom config %s: not a regular file\", path)\n\t\t}\n\t\treturn path, nil\n\t}\n\n\troot := filepath.Dir(path)\n\tif err := os.MkdirAll(root, config.BeadsDirPerm); err != nil {\n\t\treturn \"\", fmt.Errorf(\"ensureProxiedServerConfig: mkdir %s: %w\", root, err)\n\t}\n\n\tswitch _, err := os.Stat(path); {\n\tcase err == nil:\n\t\treturn path, nil\n\tcase !os.IsNotExist(err):\n\t\treturn \"\", fmt.Errorf(\"ensureProxiedServerConfig: stat %s: %w\", path, err)\n\t}\n\n\tport, err := proxy.PickFreePort()\n\tif err != nil {\n\t\treturn \"\", fmt.Errorf(\"ensureProxiedServerConfig: pick free port: %w\", err)\n\t}\n\n\tbody, err := renderProxiedServerConfig(port)\n\tif err != nil {\n\t\treturn \"\", fmt.Errorf(\"ensureProxiedServerConfig: render YAML: %w\", err)\n\t}\n\tif err := atomicWriteFile(resolveConfigWriteTarget(path), body); err != nil {\n\t\treturn \"\", fmt.Errorf(\"ensureProxiedServerConfig: write %s: %w\", path, err)\n\t}\n\treturn path, nil\n}\n\n// resolveConfigWriteTarget resolves path to its physical location before","sourceCodeStart":127,"sourceCodeEnd":163,"githubUrl":"https://github.com/gastownhall/beads/blob/71377f276968b452ee607177637970a4ff888584/cmd/bd/proxied_server.go#L127-L163","documentation":"After ensuring the parent directory exists, ensureProxiedServerConfig stats the config file itself to decide whether to reuse or generate it. Any stat error that is NOT 'file does not exist' is wrapped here. It surfaces unexpected filesystem failures when probing the config path — existence is handled separately, so this indicates real I/O trouble.","triggerScenarios":"os.Stat(path) returns an error other than fs.ErrNotExist: permission denied on a parent directory during lookup, path too long (ENAMETOOLONG), I/O error on a failing disk or network mount, invalid path characters, or a symlink loop.","commonSituations":"Unreadable parent directory (execute bit removed from ~/.beads or $HOME) so even existence checks fail; config path on a dead NFS mount; symlink loop after bad dotfile management; EIO on failing storage.","solutions":["Read the wrapped errno: EACCES/EPERM → restore +x (traverse) permission on each ancestor directory (`chmod a+x <dir>`); EIO → check dmesg/disk health or remount the volume.","If the path lives on a network/automounted filesystem, verify the mount is alive (`mount | grep <path>`, remount if stale).","Check for symlink loops: `namei -l <path>` or `readlink -f <path>` and fix the broken link.","Simplify or shorten the path if ENAMETOOLONG (deep nesting or very long HOME).","Work around by supplying a custom config path on a healthy local filesystem."],"exampleFix":"// before\n$ ls -ld ~/.beads\nd-w-------  ~/.beads        # no traverse bit, stat of children fails\n// after\n$ chmod u+x ~/.beads && bd serve","handlingStrategy":"validation","validationCode":"if _, err := os.Stat(cfgPath); err != nil && !errors.Is(err, fs.ErrNotExist) {\n\treturn fmt.Errorf(\"config path %s unusable: %w\", cfgPath, err)\n}","typeGuard":"func statProblem(path string) error {\n\t_, err := os.Stat(path)\n\tswitch {\n\tcase err == nil:\n\t\treturn nil\n\tcase errors.Is(err, fs.ErrNotExist):\n\t\treturn nil // fine, will be created\n\tdefault:\n\t\treturn err\n\t}\n}","tryCatchPattern":"if _, err := os.Stat(cfgPath); err != nil && !errors.Is(err, fs.ErrNotExist) {\n\tswitch {\n\tcase errors.Is(err, fs.ErrPermission):\n\t\t// fix or prompt for permissions before proceeding\n\tdefault:\n\t\tlog.Printf(\"config path not stat-able: %v\", err)\n\t}\n}","preventionTips":["Keep execute (traverse) permission on every ancestor directory of the config path.","Avoid placing bd config on flaky network/automounted filesystems; prefer local disk.","Watch for symlink loops after dotfile-manager changes (`namei -l ~/.beads/...`).","Keep paths reasonably short to avoid ENAMETOOLONG in deeply nested sandboxes."],"tags":["go","filesystem","stat","permissions","proxied-server"],"backgroundTag":"stat-permission-denied","analyzedSha":"71377f276968b452ee607177637970a4ff888584","analyzedAt":"2026-08-30T18:55:39.744Z","schemaVersion":2},"datasetVersion":"2026-08-30T23:17:21.991Z"}