Function detectVcs

source code/utils/platform.ts:131–152

(dir?: string)

]

export async function detectVcs(dir?: string): Promise<string[]> {
  const detected = new Set<string>()

  // Check for Perforce via env var
  if (process.env.P4PORT) {
    detected.add('perforce')
  }

  try {
    const targetDir = dir ?? getFsImplementation().cwd()
    const entries = new Set(await readdir(targetDir))
    for (const [marker, vcs] of VCS_MARKERS) {
      if (entries.has(marker)) {
        detected.add(vcs)
      }
    }
  } catch {
    // Directory may not be readable
  }

  return [...detected]
}