use .ref key value as a point to determine changes about git2consul HOT 1 CLOSED

  // First, check to see what the current ref is for this branch.
  branch.getCurrentRef(function(err, ref) {
    /* istanbul ignore if */
    if (err) return cb("Failed to get current ref for branch " + branch.name + " due to " + err);

    /**
     * Given a set of records, process them and update the branch manager to the current ref if successful.
     */
    var handle_records = function(err, records) {
      /* istanbul ignore if */
      if (err) return cb(err);
      process_records(branch, records, function(errs) {
        if (errs) {
          return cb("Some consul updates failed:\n" + errs.join('\n'));
        }
        // Note: This is a bit dangerous.  We only update most recent ref if all consul writes are successful.
        // If there's a bug that causes a certain consul write to always fail, we will always create our diffs
        // from the ref before that file was added.
        exports.setLastProcessedRef(branch, ref, function(err) {
          return cb(err);
        });
      });
    };