Function diff

scripts/compare-main-to-patch.js:111–119

* Returns a list of items present in `mapA`, but *not* present in `mapB`. * This function is needed to compare 2 sets of commits and return the list of unique commits in the * first set.

(mapA, mapB)

 * first set.
 */
function diff(mapA, mapB) {
  const result = [];
  mapA.forEach((value, key) => {
    if (!mapB.has(key)) {
      result.push(getCommitInfoAsString(value[1], value[0]));
    }
  });
  return result;
}

/**
 * @param {Map<string, [string, string]>} commitsMap - commit map from collectCommitsAsMap