Function detectShell

cli/src/utils/detect-shell.ts:30–39

(env: CliEnv = getCliEnv())

}

export function detectShell(env: CliEnv = getCliEnv()): ShellName {
  if (cachedShell) {
    return cachedShell
  }

  const detected =
    detectFromEnvironment(env) ?? detectViaParentProcessInspection() ?? 'unknown'
  cachedShell = detected
  return detected
}

function detectFromEnvironment(env: CliEnv): ShellName | null {
  const candidates: Array<string | undefined> = []