/// <summary>
/// Deletes files and directories scheduled for deletion by the settings provider.
/// </summary>
/// <param name="settings"><see cref="ISettingsProvider"/> managing the files and directories scheduled for deletion.</param>
/// <param name="provider"><see cref="IFileSystem"/> managing where the files and directories are located.</param>
/// <exception cref="ArgumentNullException">Thrown if <paramref name="settings"/> or <paramref name="provider"/> is null.</exception>
protected async Task DeleteScheduledFiles(ISettingsProvider settings, IFileSystem provider)
{
if (settings == null)
{
throw new ArgumentNullException(nameof(settings));
}
if (provider == null)
{
throw new ArgumentNullException(nameof(settings));
}
// Files
foreach (var item in settings.GetFilesScheduledForDeletion().ToList()) // Create a new list because the original will be continuously modified
{
if (CurrentFileSystem.FileExists(item))
{
CurrentFileSystem.DeleteFile(item);
}
CurrentSettingsProvider.UnscheduleFileForDeletion(item);
await CurrentSettingsProvider.Save(provider);
}
// Directories
foreach (var item in settings.GetDirectoriesScheduledForDeletion().ToList())
{
if (CurrentFileSystem.DirectoryExists(item))
{
CurrentFileSystem.DeleteDirectory(item);
}
CurrentSettingsProvider.UnscheduleDirectoryForDeletion(item);
await CurrentSettingsProvider.Save(provider);
}
}
bool IFileSystem.DirectoryExists(string path)
{
return(!BlacklistedPaths.Contains(FixPath(path))
&&
((CurrentFileSystem != null && CurrentFileSystem.DirectoryExists(GetVirtualPath(path))) ||
DirectoryExists(GetPathParts(path))
));
}
Stream IFileSystem.OpenFileWriteOnly(string filename)
{
if (CurrentFileSystem != null)
{
throw new NotSupportedException("Cannot open a file as a stream without an IO provider.");
}
var virtualPath = GetVirtualPath(filename);
if (!CurrentFileSystem.DirectoryExists(virtualPath))
{
CurrentFileSystem.CreateDirectory(virtualPath);
}
CurrentFileSystem.WriteAllBytes(virtualPath, (this as IFileSystem).ReadAllBytes(filename));
return(CurrentFileSystem.OpenFileWriteOnly(filename));
}
string[] IFileSystem.GetDirectories(string path, bool topDirectoryOnly)
{
var parts = GetPathParts(path);
var output = new List <string>();
void addRomFsDirectories(int partitionId)
{
var directory = "/" + GetRomFsDirectoryName(partitionId) + "/";
var currentDirectory = GetPartitionOrDefault(partitionId)?.RomFs?.Level3.RootDirectoryMetadataTable;
for (int i = 1; i < parts.Length; i += 1)
{
currentDirectory = currentDirectory?.ChildDirectories.Where(x => string.Compare(x.Name, parts[i], true) == 0).FirstOrDefault();
directory += currentDirectory.Name + "/";
}
if (currentDirectory != null)
{
var dirs = currentDirectory.ChildDirectories
.Select(f => directory + f.Name + "/");
output.AddRange(dirs);
if (!topDirectoryOnly)
{
foreach (var d in currentDirectory.ChildDirectories)
{
output.AddRange((this as IFileSystem).GetDirectories(directory + d.Name + "/", topDirectoryOnly));
}
}
}
}
var dirName = parts[0].ToLower();
switch (dirName)
{
case "" when parts.Length == 1:
for (int i = 0; i < Partitions.Length; i++)
{
if (Partitions[i].ExeFs != null)
{
output.Add("/" + GetExeFsDirectoryName(i) + "/");
if (!topDirectoryOnly)
{
output.AddRange((this as IFileSystem).GetDirectories("/" + GetExeFsDirectoryName(i), topDirectoryOnly));
}
}
if (Partitions[i].RomFs != null)
{
output.Add("/" + GetRomFsDirectoryName(i) + "/");
if (!topDirectoryOnly)
{
output.AddRange((this as IFileSystem).GetDirectories("/" + GetRomFsDirectoryName(i), topDirectoryOnly));
}
}
}
break;
case "exefs" when parts.Length == 1:
// ExeFs doesn't support directories
break;
case "romfs":
case "romfs-partition-0":
addRomFsDirectories(0);
break;
case "manual":
case "romfs-partition-1":
addRomFsDirectories(1);
break;
case "downloadplay":
case "romfs-partition-2":
addRomFsDirectories(2);
break;
case "n3dsupdate":
case "romfs-partition-6":
addRomFsDirectories(6);
break;
case "o3dsupdate":
case "romfs-partition-7":
addRomFsDirectories(7);
break;
default:
if (dirName.StartsWith("romfs-partition-"))
{
var partitionNumRaw = dirName.Split("-".ToCharArray(), 3)[2];
if (int.TryParse(partitionNumRaw, out var partitionNum))
{
addRomFsDirectories(partitionNum);
}
}
break;
}
// Apply shadowed files
var virtualPath = GetVirtualPath(path);
if (CurrentFileSystem != null && CurrentFileSystem.DirectoryExists(virtualPath))
{
foreach (var item in CurrentFileSystem.GetDirectories(virtualPath, topDirectoryOnly))
{
var overlayPath = "/" + SkyEditor.Core.Utilities.FileSystem.MakeRelativePath(item, VirtualPath);
if (!BlacklistedPaths.Contains(overlayPath) && !output.Contains(overlayPath, StringComparer.OrdinalIgnoreCase))
{
output.Add(overlayPath);
}
}
}
return(output.ToArray());
}
string[] IFileSystem.GetFiles(string path, string searchPattern, bool topDirectoryOnly)
{
var searchPatternRegex = new Regex(GetFileSearchRegex(searchPattern), RegexOptions.Compiled | RegexOptions.IgnoreCase);
var parts = GetPathParts(path);
var output = new List <string>();
void addRomFsFiles(int partitionId)
{
var directory = "/" + GetRomFsDirectoryName(partitionId) + "/";
var currentDirectory = GetPartitionOrDefault(partitionId)?.RomFs?.Level3.RootDirectoryMetadataTable;
for (int i = 1; i < parts.Length; i += 1)
{
currentDirectory = currentDirectory?.ChildDirectories.Where(x => string.Compare(x.Name, parts[i], true) == 0).FirstOrDefault();
directory += currentDirectory.Name + "/";
}
if (currentDirectory != null)
{
IEnumerable <string> files;
if (ReferenceEquals(currentDirectory, GetPartitionOrDefault(partitionId).RomFs.Level3.RootDirectoryMetadataTable))
{
// The root RomFS directory doesn't contain files; those are located in the level 3
files = GetPartitionOrDefault(partitionId).RomFs.Level3.RootFiles
.Where(f => searchPatternRegex.IsMatch(f.Name))
.Select(f => directory + f.Name);
}
else
{
files = currentDirectory.ChildFiles
.Where(f => searchPatternRegex.IsMatch(f.Name))
.Select(f => directory + f.Name);
}
output.AddRange(files);
if (!topDirectoryOnly)
{
foreach (var d in currentDirectory.ChildDirectories)
{
output.AddRange((this as IFileSystem).GetFiles(directory + d.Name + "/", searchPattern, topDirectoryOnly));
}
}
}
}
var dirName = parts[0].ToLower();
switch (dirName)
{
case "" when parts.Length == 1:
if (!topDirectoryOnly)
{
for (int i = 0; i < Partitions.Length; i++)
{
if (Partitions[i].ExHeader != null)
{
var exheaderName = GetExHeaderFileName(i);
if (!searchPatternRegex.IsMatch(exheaderName))
{
output.Add(exheaderName);
}
}
if (Partitions[i].ExeFs != null)
{
output.AddRange((this as IFileSystem).GetFiles("/" + GetExeFsDirectoryName(i), searchPattern, topDirectoryOnly));
}
if (Partitions[i].RomFs != null)
{
output.AddRange((this as IFileSystem).GetFiles("/" + GetRomFsDirectoryName(i), searchPattern, topDirectoryOnly));
}
}
}
break;
case "exefs" when parts.Length == 1:
case "exefs-partition-0" when parts.Length == 1:
foreach (var file in GetPartitionOrDefault(0)?.ExeFs?.Headers
?.Where(h => searchPatternRegex.IsMatch(h.Filename) && !string.IsNullOrWhiteSpace(h.Filename))
?.Select(h => h.Filename))
{
output.Add("/ExeFS/" + file);
}
break;
case "romfs":
case "romfs-partition-0":
addRomFsFiles(0);
break;
case "manual":
case "romfs-partition-1":
addRomFsFiles(1);
break;
case "downloadplay":
case "romfs-partition-2":
addRomFsFiles(2);
break;
case "n3dsupdate":
case "romfs-partition-6":
addRomFsFiles(6);
break;
case "o3dsupdate":
case "romfs-partition-7":
addRomFsFiles(7);
break;
default:
if (dirName.StartsWith("romfs-partition-"))
{
var partitionNumRaw = dirName.Split("-".ToCharArray(), 3)[2];
if (int.TryParse(partitionNumRaw, out var partitionNum))
{
addRomFsFiles(partitionNum);
}
}
else if (dirName.StartsWith("exefs-partition-"))
{
var partitionNumRaw = dirName.Split("-".ToCharArray(), 3)[2];
if (int.TryParse(partitionNumRaw, out var partitionNum))
{
foreach (var file in GetPartitionOrDefault(partitionNum)?.ExeFs?.Headers
?.Where(h => searchPatternRegex.IsMatch(h.Filename) && !string.IsNullOrWhiteSpace(h.Filename))
?.Select(h => h.Filename))
{
output.Add("/ExeFS/" + file);
}
}
}
break;
}
// Apply shadowed files
var virtualPath = GetVirtualPath(path);
if (CurrentFileSystem != null && CurrentFileSystem.DirectoryExists(virtualPath))
{
foreach (var item in CurrentFileSystem.GetFiles(virtualPath, searchPattern, topDirectoryOnly))
{
var overlayPath = "/" + SkyEditor.Core.Utilities.FileSystem.MakeRelativePath(item, VirtualPath);
if (!BlacklistedPaths.Contains(overlayPath) && !output.Contains(overlayPath, StringComparer.OrdinalIgnoreCase))
{
output.Add(overlayPath);
}
}
}
return(output.ToArray());
}