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Add DeleteDirectory to savedata

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This commit is contained in:
Alex Barney 2019-05-08 16:27:48 -05:00
parent 3c45e7e71b
commit 47ba61db45
2 changed files with 56 additions and 1 deletions
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53
src/LibHac/IO/Save/HierarchicalSaveFileTable.cs
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@ -200,6 +200,59 @@ namespace LibHac.IO.Save
throw new FileNotFoundException();
}
public void DeleteDirectory(string path)
{
path = PathTools.Normalize(path);
ReadOnlySpan<byte> pathBytes = Util.GetUtf8Bytes(path);
FindPathRecursive(pathBytes, out SaveEntryKey key);
int parentIndex = key.Parent;
DirectoryTable.GetValue(parentIndex, out TableEntry<SaveFindPosition> parentEntry);
int toDeleteIndex = DirectoryTable.GetIndexFromKey(ref key).Index;
if (toDeleteIndex < 0) throw new DirectoryNotFoundException();
DirectoryTable.GetValue(toDeleteIndex, out TableEntry<SaveFindPosition> toDeleteEntry);
if (toDeleteEntry.Value.NextDirectory != 0 || toDeleteEntry.Value.NextFile != 0)
{
throw new IOException("Directory is not empty.");
}
if (parentEntry.Value.NextDirectory == toDeleteIndex)
{
parentEntry.Value.NextDirectory = toDeleteEntry.NextSibling;
DirectoryTable.SetValue(parentIndex, ref parentEntry);
DirectoryTable.Remove(ref key);
return;
}
int prevIndex = parentEntry.Value.NextDirectory;
DirectoryTable.GetValue(prevIndex, out TableEntry<SaveFindPosition> prevEntry);
int curIndex = prevEntry.NextSibling;
while (curIndex != 0)
{
DirectoryTable.GetValue(curIndex, out TableEntry<SaveFindPosition> curEntry);
if (curIndex == toDeleteIndex)
{
prevEntry.NextSibling = curEntry.NextSibling;
DirectoryTable.SetValue(prevIndex, ref prevEntry);
DirectoryTable.Remove(ref key);
return;
}
prevIndex = curIndex;
prevEntry = curEntry;
curIndex = prevEntry.NextSibling;
}
throw new DirectoryNotFoundException();
}
public bool TryOpenDirectory(string path, out SaveFindPosition position)
{
if (!FindPathRecursive(Util.GetUtf8Bytes(path), out SaveEntryKey key))

4
src/LibHac/IO/Save/SaveDataFileSystemCore.cs
View file

@ -46,7 +46,9 @@ namespace LibHac.IO.Save
public void DeleteDirectory(string path)
{
throw new NotImplementedException();
path = PathTools.Normalize(path);
FileTable.DeleteDirectory(path);
}
public void DeleteDirectoryRecursively(string path)