Function hasCommand

src/services/voice.ts:49–61

(cmd: string)

// ─── Dependency check ────────────────────────────────────────────────

function hasCommand(cmd: string): boolean {
  // Spawn the target directly instead of `which cmd`. On Termux/Android
  // `which` is a shell builtin — the external binary is absent or
  // kernel-blocked (EPERM) when spawned from Node. Only reached on
  // non-Windows (win32 returns early from all callers), no PATHEXT issue.
  // result.error is set iff the spawn itself fails (ENOENT/EACCES); exit
  // code is irrelevant — an unrecognized --version still means cmd exists.
  const result = spawnSync(cmd, ['--version'], {
    stdio: 'ignore',
    timeout: 3000,
  })
  return result.error === undefined
}

// Probe whether arecord can actually open a capture device. hasCommand()
// only checks PATH; on WSL1/Win10-WSL2/headless Linux the binary exists