Function findProjectDir

src/utils/sessionStoragePortable.ts:354–380

(
  projectPath: string,
)

 * prefix-based scanning when the exact match doesn't exist.
 */
export async function findProjectDir(
  projectPath: string,
): Promise<string | undefined> {
  const exact = getProjectDir(projectPath)
  try {
    await readdir(exact)
    return exact
  } catch {
    // Exact match failed — for short paths this means no sessions exist.
    // For long paths, try prefix matching to handle hash mismatches.
    const sanitized = sanitizePath(projectPath)
    if (sanitized.length <= MAX_SANITIZED_LENGTH) {
      return undefined
    }
    const prefix = sanitized.slice(0, MAX_SANITIZED_LENGTH)
    const projectsDir = getProjectsDir()
    try {
      const dirents = await readdir(projectsDir, { withFileTypes: true })
      const match = dirents.find(
        d => d.isDirectory() && d.name.startsWith(prefix + '-'),
      )
      return match ? join(projectsDir, match.name) : undefined
    } catch {
      return undefined
    }
  }
}

/**
 * Resolve a sessionId to its on-disk JSONL file path.