Function isValidUtf8

src/extraction/index.ts:203–210

True if `buf` decodes as strict UTF-8 (no invalid byte sequences).

(buf: Buffer)

/** True if `buf` decodes as strict UTF-8 (no invalid byte sequences). */
function isValidUtf8(buf: Buffer): boolean {
  try {
    new TextDecoder('utf-8', { fatal: true }).decode(buf);
    return true;
  } catch {
    return false;
  }
}

/**
 * Read a `.gitignore` and return patterns safe to hand to the `ignore` matcher —