Function backupExistingFile

src/proxy/clientSettings.js:198–219

(file)

}

function backupExistingFile(file) {
  try {
    if (!file || !fs.existsSync(file)) return null;
    const stamp = new Date().toISOString().replace(/[-:]/g, '').replace(/\.\d{3}Z$/, 'Z');
    const backupDir = path.join(path.dirname(file), 'backups');
    fs.mkdirSync(backupDir, { recursive: true });
    for (let i = 0; i < 10; i++) {
      const suffix = i === 0 ? '' : `-${i}`;
      const backupFile = path.join(backupDir, `settings.json.pre-evomap-proxy-sync-${stamp}${suffix}`);
      try {
        fs.copyFileSync(file, backupFile, fs.constants.COPYFILE_EXCL);
        try { fs.chmodSync(backupFile, 0o600); } catch { /* best-effort */ }
        return backupFile;
      } catch (err) {
        if (!err || err.code !== 'EEXIST') return null;
      }
    }
    return null;
  } catch {
    return null;
  }
}

function syncClaudeProxySettings(info = {}) {
  const env = info.env || process.env;