internal static OsReleaseProperties ReadFromStream()

in JetBrains.HabitatDetector/src/OsReleaseProperties.cs [89:112]

• 20 lines of code
• 8 McCabe index (conditional complexity)

    internal static OsReleaseProperties ReadFromStream(StreamReader reader)
    {
      // Note(ww898): See https://www.linux.org/docs/man5/os-release.html and https://www.freedesktop.org/software/systemd/man/os-release.html

      static bool IsQuotedString(string str, char ch) => str.Length >= 2 && str[0] == ch && str[str.Length - 1] == ch;

      var properties = new Dictionary<string, string>();
      for (string? line; (line = reader.ReadLine()) != null;)
      {
        line = line.TrimEnd();
        if (line.Length == 0 || line[0] == '#')
          continue;
        var n = line.IndexOf('=');
        if (n < 0)
          throw new FormatException();
        var key = line.Substring(0, n);
        var value = line.Substring(n + 1);
        properties[key] = IsQuotedString(value, '\'') || IsQuotedString(value, '"')
          ? value.Substring(1, value.Length - 2)
          : value;
      }

      return new OsReleaseProperties(properties);
    }