Function tailString

src/engine.ts:294–297

Clip the tail of a buffer to a byte budget — engines put the "what went * wrong" line at the end of stderr.

(buf: Buffer, bytes: number)

/** Clip the tail of a buffer to a byte budget — engines put the "what went
 *  wrong" line at the end of stderr. */
function tailString(buf: Buffer, bytes: number): string {
  if (buf.length <= bytes) return buf.toString('utf-8');
  return '\u2026' + buf.subarray(buf.length - bytes).toString('utf-8');
}

/**
 * Strip high-confidence secret shapes from child stderr before it lands in