Function createNodeDataDirSwitch

packages/node-runtime/src/data-dir-switch.ts:305–345

(input: {
  systemDir: string
  currentDir: string
  targetDir: string | null
  defaultDir?: string
  migrate?: boolean
  envDataDir?: string
})

}

export function createNodeDataDirSwitch(input: {
  systemDir: string
  currentDir: string
  targetDir: string | null
  defaultDir?: string
  migrate?: boolean
  envDataDir?: string
}): DataDirSwitchResult {
  if (input.envDataDir) {
    return { success: false, error: 'CHATLAB_DATA_DIR is set, data directory cannot be changed from Web UI' }
  }

  const newDir = (input.targetDir?.trim() || input.defaultDir || '').trim()
  if (!newDir) return { success: false, error: 'Data directory is required' }
  if (!path.isAbsolute(newDir)) return { success: false, error: 'Data directory must be an absolute path' }
  if (!isPathSafe(newDir)) return { success: false, error: 'System directories cannot be used as data directory' }

  const migrate = input.migrate !== false
  if (migrate && path.resolve(input.currentDir) !== path.resolve(newDir) && isSubPath(input.currentDir, newDir)) {
    return { success: false, error: 'Target directory cannot be inside current data directory' }
  }

  if (!isUserDataDirSafeToUse(newDir)) {
    return { success: false, error: 'Target directory is not empty and is not a ChatLab data directory' }
  }

  if (path.resolve(input.currentDir) === path.resolve(newDir)) {
    clearPendingNodeDataDirMigration(input.systemDir)
    return { success: true, from: input.currentDir, to: newDir, requiresRelaunch: false }
  }

  const pending = createPendingDataDirMigration({
    from: input.currentDir,
    to: newDir,
    migrate,
    targetWasEmpty: isDirectoryEmptyOrMissing(newDir),
  })
  writePendingNodeDataDirMigration(input.systemDir, pending)

  return { success: true, from: input.currentDir, to: newDir, requiresRelaunch: true }
}

export function applyPendingNodeDataDirMigration(
  systemDir: string,