public void EnforceSizeLimit(long bytes, Registry registry)
{
int numFiles;
long curBytes;
GetSizeInfo(out numFiles, out curBytes);
if (curBytes > bytes)
{
// This object will let us determine whether a module is compatible with any of our instances
KspVersionCriteria aggregateCriteria = manager?.Instances.Values
.Where(ksp => ksp.Valid)
.Select(ksp => ksp.VersionCriteria())
.Aggregate(
manager?.CurrentInstance?.VersionCriteria()
?? new KspVersionCriteria(null),
(combinedCrit, nextCrit) => combinedCrit.Union(nextCrit)
);
// This object lets us find the modules associated with a cached file
Dictionary <string, List <CkanModule> > hashMap = registry.GetDownloadHashIndex();
// Prune the module lists to only those that are compatible
foreach (var kvp in hashMap)
{
kvp.Value.RemoveAll(mod => !mod.IsCompatibleKSP(aggregateCriteria));
}
// Now get all the files in all the caches...
List <FileInfo> files = allFiles();
// ... and sort them by compatibilty and timestamp...
files.Sort((a, b) => compareFiles(
hashMap, aggregateCriteria, a, b
));
// ... and delete them till we're under the limit
foreach (FileInfo fi in files)
{
curBytes -= fi.Length;
fi.Delete();
File.Delete($"{fi.Name}.sha1");
File.Delete($"{fi.Name}.sha256");
if (curBytes <= bytes)
{
// Limit met, all done!
break;
}
}
OnCacheChanged();
sha1Cache.Clear();
sha256Cache.Clear();
}
}