compareSemver function

int compareSemver(String version, String other)

Compares a version against other returns negative if version is ordered before positive if version is ordered after Doesnt considere incremental builds +VALUE 0 if its the same from cli_notify

Implementation

int compareSemver(String version, String other) {
  version = version.replaceAll('dev-', '');
  other = other.replaceAll('dev-', '');

  final regExp = RegExp(
    r'^(0|[1-9]\d*)\.(0|[1-9]\d*)\.(0|[1-9]\d*)(-[a-zA-Z\d][-a-zA-Z.\d]*)?(\+[a-zA-Z\d][-a-zA-Z.\d]*)?$',
  );
  try {
    if (regExp.hasMatch(version) && regExp.hasMatch(other)) {
      final versionMatches = regExp.firstMatch(version);
      final otherMatches = regExp.firstMatch(other);

      var result = 0;
      // print("versions $versionMatches -- $otherMatches");
      if (versionMatches == null || otherMatches == null) {
        return result;
      }

      final isPrerelease = otherMatches.group(4) != null ? true : false;
      // Ignore if its pre-release
      if (isPrerelease) {
        return result;
      }

      for (var idx = 1; idx < versionMatches.groupCount; idx++) {
        final versionMatch = versionMatches.group(idx) ?? '';
        final otherMatch = otherMatches.group(idx) ?? '';
        // PreRelease group
        final versionNumber = int.tryParse(versionMatch);
        final otherNumber = int.tryParse(otherMatch);
        if (versionMatch != otherMatch) {
          if (versionNumber == null || otherNumber == null) {
            result = versionMatch.compareTo(otherMatch);
          } else {
            result = versionNumber.compareTo(otherNumber);
          }
          break;
        }
      }

      return result;
    }

    return 0;
  } on Exception catch (err) {
    print(err.toString());
    return 0;
  }
}