String joinAll()

in lib/src/context.dart [260:299]

• 30 lines of code
• 9 McCabe index (conditional complexity)

  String joinAll(Iterable<String> parts) {
    final buffer = StringBuffer();
    var needsSeparator = false;
    var isAbsoluteAndNotRootRelative = false;

    for (var part in parts.where((part) => part != '')) {
      if (isRootRelative(part) && isAbsoluteAndNotRootRelative) {
        // If the new part is root-relative, it preserves the previous root but
        // replaces the path after it.
        final parsed = _parse(part);
        final path = buffer.toString();
        parsed.root =
            path.substring(0, style.rootLength(path, withDrive: true));
        if (style.needsSeparator(parsed.root!)) {
          parsed.separators[0] = style.separator;
        }
        buffer.clear();
        buffer.write(parsed.toString());
      } else if (isAbsolute(part)) {
        isAbsoluteAndNotRootRelative = !isRootRelative(part);
        // An absolute path discards everything before it.
        buffer.clear();
        buffer.write(part);
      } else {
        if (part.isNotEmpty && style.containsSeparator(part[0])) {
          // The part starts with a separator, so we don't need to add one.
        } else if (needsSeparator) {
          buffer.write(separator);
        }

        buffer.write(part);
      }

      // Unless this part ends with a separator, we'll need to add one before
      // the next part.
      needsSeparator = style.needsSeparator(part);
    }

    return buffer.toString();
  }