{"record":{"id":"843c96b0e19364b6","repo":"affaan-m/ECC","slug":"nasiko-install-directory-has-no-resolvable-filesys","errorCode":null,"errorMessage":"Nasiko install directory has no resolvable filesystem ancestor.","messagePattern":"Nasiko install directory has no resolvable filesystem ancestor\\.","errorType":"exception","errorClass":"Error","httpStatus":null,"severity":"error","filePath":"scripts/lib/nasiko-release.js","lineNumber":149,"sourceCode":"}\n\nfunction defaultInstallDirectory(normalized, environment = process.env, homeDirectory = os.homedir()) {\n  if (normalized.os === 'windows') {\n    if (!environment.LOCALAPPDATA) throw new Error('LOCALAPPDATA is required on Windows.');\n    return path.join(environment.LOCALAPPDATA, 'nasiko', 'bin');\n  }\n  return path.join(homeDirectory, '.local', 'bin');\n}\n\nfunction validateInstallDirectory(directory) {\n  if (typeof directory !== 'string' || directory.includes('\\0') || !path.isAbsolute(directory)) throw new Error('Nasiko install directory must be an absolute path.');\n  if (/^(?:\\\\\\\\|\\\\\\\\\\?\\\\|\\\\\\\\\\.\\\\)/.test(directory)) throw new Error('Nasiko install directory must be on a local filesystem.');\n  const resolved = path.resolve(directory);\n  if (resolved === path.parse(resolved).root) throw new Error('Nasiko cannot install directly into a filesystem root.');\n  let ancestor = resolved;\n  while (!fs.existsSync(ancestor)) {\n    const parent = path.dirname(ancestor);\n    if (parent === ancestor) throw new Error('Nasiko install directory has no resolvable filesystem ancestor.');\n    ancestor = parent;\n  }\n  const canonical = fs.realpathSync(ancestor);\n  return path.join(canonical, path.relative(ancestor, resolved));\n}\n\nfunction assertPrivateInstallDirectory(directory) {\n  const stats = fs.lstatSync(directory);\n  if (!stats.isDirectory() || stats.isSymbolicLink()) throw new Error('Nasiko install directory must be a real directory, not a symlink.');\n  if (process.platform !== 'win32') {\n    if (typeof process.getuid === 'function' && stats.uid !== process.getuid()) throw new Error('Nasiko install directory must be owned by the current user.');\n    if ((stats.mode & 0o022) !== 0) throw new Error('Nasiko install directory must not be group- or world-writable.');\n  }\n}\n\nfunction metadataPathFor(executable) { return path.join(path.dirname(executable), METADATA_FILENAME); }\n\nfunction readBoundedRegularFile(filePath, maximumBytes) {","sourceCodeStart":131,"sourceCodeEnd":167,"githubUrl":"https://github.com/affaan-m/ECC/blob/06c5e118c4d3e6c3b7f9445f973a2194c82de193/scripts/lib/nasiko-release.js#L131-L167","documentation":"validateInstallDirectory guard: the ancestor walk up from the (possibly nonexistent) install directory reached the filesystem root without finding an existing directory to resolve against, so the path cannot be canonicalized safely.","triggerScenarios":"Thrown at scripts/lib/nasiko-release.js:149 when the library encounters an invalid state.","commonSituations":"Raised when input validation fails because: Nasiko install directory has no resolvable filesystem ancestor.. Typically caused by a missing, malformed, or out-of-range argument or configuration value.","solutions":["Provide a value that satisfies the validation: Nasiko install directory has no resolvable filesystem ancestor.","Check the calling command or configuration for the reported field and correct it, then retry.","Run the command with --help to review the expected input shape and allowed values."],"exampleFix":"Correct the invalid input so that the following holds: Nasiko install directory has no resolvable filesystem ancestor.","handlingStrategy":"validation","validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"06c5e118c4d3e6c3b7f9445f973a2194c82de193","analyzedAt":"2026-08-18T11:27:13.915Z","contentChangedAt":null,"schemaVersion":2},"datasetVersion":"2026-09-14T00:17:10.932Z"}