Function searchFile

app/src/AI/FileSandbox.cpp:462–494

* @brief Scans one text file for a needle, appending bounded line-level hits. */

 * @brief Scans one text file for a needle, appending bounded line-level hits.
 */
static void searchFile(const QString& path,
                       const QString& root,
                       const QRegularExpression& needle,
                       QJsonArray& hits,
                       bool& truncated)
{
  QFile file(path);
  if (!file.open(QIODevice::ReadOnly))
    return;

  if (looksBinary(file.peek(AI::FileSandbox::kBinarySniffBytes)))
    return;

  QTextStream stream(&file);
  int lineNo = 0;
  while (!stream.atEnd()) {
    const auto line = stream.readLine();
    ++lineNo;
    if (!needle.match(line).hasMatch())
      continue;

    if (hits.size() >= AI::FileSandbox::kMaxSearchHits) {
      truncated = true;
      return;
    }

    QJsonObject row;
    row[QStringLiteral("file")] = displayPath(path, root);
    row[QStringLiteral("line")] = lineNo;
    row[QStringLiteral("text")] = line.left(400);
    hits.append(row);
  }
}

/**
 * @brief Walks the read roots, collecting files to search within the scan cap.