private static void LoadRemoteMappings(MappingDatabase mappingDatabase, string version)
{
Lumberjack.Log("Fetching mapping versions from remote...");
var yarnVersions = YarnUtil.GetYarnVersions();
if (yarnVersions == null)
{
// If we couldn't get them, try to use the ones we've already cached
Lumberjack.Warn("Working in offline mode. Only local Yarn mappings will be available.");
yarnVersions = mappingDatabase.GetYarnVersions();
}
if (yarnVersions.All(mapping => mapping.Version != version))
{
// If a specific mapping version was specified that doesn't exist in the version listing, fail
Lumberjack.Error($"Could not find mapping version {version}!");
return;
}
var mappingVersion = yarnVersions.First(mapping => mapping.Version == version);
if (!mappingDatabase.HasMappingSet(mappingVersion))
{
// If we don't have those mappings cached, download them and cache them
Lumberjack.Log("Fetching mappings from remote...");
var mappings = YarnUtil.GetYarnMappings(mappingVersion);
if (mappings != null)
{
Lumberjack.Log("Updating database...");
mappingDatabase.CreateMappingSet(mappingVersion, mappings);
}
else
{
Lumberjack.Error($"Failed to load requested mappings {mappingVersion.Version}");
Environment.Exit((int)ExitConditions.MappingVersionNotFound);
}
}
else
{
Lumberjack.Log("Local database contains required mappings.");
}
InteractiveMapper.SetYarnVersion(mappingVersion);
Lumberjack.Log($"Using mappings from yarn {version}");
}
/// <summary>
/// Remaps the given jar with the specified mappings and output directory
/// </summary>
/// <param name="args">The command line flags for the conversion</param>
/// <remarks>
/// Most of the logic here is finding and loading mappings. The general flow is as
/// follows: If you supplied a Tiny mapping file, use that. Otherwise, download the mapping
/// metadata from the Yarn site. If you provided a yarn version, make sure it's valid and then
/// use that one. If you didn't, try to pick the mapping based on the game version listed in
/// the dependencies of the fabric.mod.json in the archive. If it doesn't exist, fail hard.
///
/// With the mapping version in hand, see if we already cached the mappings in the database,
/// and download them if we hadn't.
/// </remarks>
private static void DoRemap(Options args)
{
BaseDirConfig = args.ConfigDirBase;
BaseDirOutput = args.OutputDirBase;
if (args.InputArchive == null)
{
InteractiveMapper.Run();
}
// Quick fail if the input archive doesn't exist
if (!File.Exists(args.InputArchive))
{
Lumberjack.Error($"Input file \"{args.InputArchive}\" does not exist!");
Environment.Exit((int)ExitConditions.InputFileNotFound);
}
// Load local mapping database
Lumberjack.Log("Loading mapping database...");
_mappingDatabase = new MappingDatabase(Path.Combine(BaseDirConfig, "mappings.db"));
// Try to pick a mapping version manually or automatically
YarnVersion mappingVersion = null;
if (args.LocalTinyFile != null)
{
// Try and load mappings from a specific local .tiny file (if provided)
Lumberjack.Log("Loading mappings from local file...");
if (!File.Exists(args.LocalTinyFile))
{
Lumberjack.Error($"Tiny v1 file \"{args.LocalTinyFile}\" does not exist!");
Environment.Exit((int)ExitConditions.TinyFileNotFound);
}
mappingVersion = new YarnVersion
{
Version = args.LocalTinyFile
};
_mappingDatabase.UseLocalFile(args.LocalTinyFile);
}
else
{
// Download all of the mapping versions from the Yarn API
Lumberjack.Log("Fetching mapping versions from remote...");
var yarnVersions = YarnUtil.GetYarnVersions();
if (yarnVersions == null)
{
// If we couldn't get them, try to use the ones we've already cached
Lumberjack.Warn("Working in offline mode. Only local Yarn mappings will be available.");
yarnVersions = _mappingDatabase.GetYarnVersions();
}
if (args.MappingVersion != null)
{
if (yarnVersions.All(mapping => mapping.Version != args.MappingVersion))
{
// If a specific mapping version was specified that doesn't exist in the version listing, fail
Lumberjack.Error($"Could not find mapping version {args.MappingVersion}!");
Environment.Exit((int)ExitConditions.MappingVersionNotFound);
}
mappingVersion = yarnVersions.First(mapping => mapping.Version == args.MappingVersion);
}
Lumberjack.Log("Retrieving game version from jarfile...");
var gameVersion = JarUtils.GetGameVersion(args.InputArchive);
if (mappingVersion == null)
{
// If no mapping version was specified in any form, select one based off of the game target version
if (gameVersion == null)
{
// If there's no Minecraft version dependency in the fabric.mod.json, fail
Lumberjack.Error(
"Could not find fabric.mod.json in archive! Try specifying the Yarn version manually.");
Environment.Exit((int)ExitConditions.FabricModJsonNotFound);
}
Lumberjack.Log($"Found game version: {gameVersion}");
// Get the latest mapping version compatible with the jar game version
mappingVersion =
yarnVersions.FirstOrDefault(yarnVersion => YarnUtil.DoVersionsMatch(yarnVersion, gameVersion));
if (mappingVersion == null)
{
// If no mapping was compatible, fail
// This should only really happen if we're in offline mode and only able to use locally cached mappings
Lumberjack.Error(
$"Could not automatically find a mapping compatible with game version {gameVersion}");
Environment.Exit((int)ExitConditions.MappingVersionNotFound);
}
Lumberjack.Log(
$"Latest mapping that matches game version from jarfile is {mappingVersion.Version}");
}
else if (gameVersion != null)
{
// If a specific Yarn version was specified, check the game version anyway and spit out an error if they're probably not compatible
// We continue anyway because we assume if they're specifying mapping versions manually they probably know they're not compatible
// and have a reason to need that version
Lumberjack.Log($"Input jarfile has fabric.mod.json, specifying gave version {gameVersion}");
if (!YarnUtil.DoVersionsMatch(mappingVersion, gameVersion))
{
Lumberjack.Warn(
$"Game version {gameVersion} is not compatible with yarn version {mappingVersion.Version}, some mappings might not exist!");
}
}
if (!_mappingDatabase.HasMappingSet(mappingVersion))
{
// If we don't have those mappings cached, download them and cache them
Lumberjack.Log("Fetching mappings from remote...");
var mappings = YarnUtil.GetYarnMappings(mappingVersion);
if (mappings != null)
{
Lumberjack.Log("Updating database...");
_mappingDatabase.CreateMappingSet(mappingVersion, mappings);
}
else
{
Lumberjack.Error($"Failed to load requested mappings {mappingVersion.Version}");
Environment.Exit((int)ExitConditions.MappingVersionNotFound);
}
}
else
{
Lumberjack.Log("Local database contains required mappings.");
}
}
// Load mappings and map the archive into the output directory
Lumberjack.Log($"Loading {mappingVersion.Version} mappings...");
var mappingSet = _mappingDatabase.GetMappingSet(mappingVersion);
Lumberjack.PushCategory("Jar");
Mapper.MapArchive(mappingSet, args.InputArchive, args.OutputDir ?? $"{Path.GetFileNameWithoutExtension(args.InputArchive)}-mapped");
Lumberjack.PopCategory();
Lumberjack.Log("Done. Press any key to continue.");
Console.ReadKey();
Environment.Exit((int)ExitConditions.Success);
}