private String getPreviousRevision()

in src/main/java/com/googlesource/gerrit/plugins/automerger/DownstreamCreator.java [690:707]

• 17 lines of code
• 5 McCabe index (conditional complexity)

  private String getPreviousRevision(ChangeApi change, int currentPatchSetNumber)
      throws RestApiException {
    String previousRevision = null;
    int maxPatchSetNum = 0;
    if (currentPatchSetNumber > 1) {
      // Get sha of patch set with highest number we can see
      Map<String, RevisionInfo> revisionMap =
          change.get(EnumSet.of(ListChangesOption.ALL_REVISIONS)).revisions;
      for (Map.Entry<String, RevisionInfo> revisionEntry : revisionMap.entrySet()) {
        int revisionPatchNumber = revisionEntry.getValue()._number;
        if (revisionPatchNumber > maxPatchSetNum && revisionPatchNumber < currentPatchSetNumber) {
          previousRevision = revisionEntry.getKey();
          maxPatchSetNum = revisionPatchNumber;
        }
      }
    }
    return previousRevision;
  }