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Move general purpose migration to MigratableStorage

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This commit is contained in:
Shivam
2020-07-01 22:57:16 +02:00
parent 0cddb85f1b
commit c3cd2a74f5
4 changed files with 38 additions and 41 deletions
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31
osu.Game/IO/MigratableStorage.cs
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@ -22,7 +22,36 @@ namespace osu.Game.IO
{
}
public abstract void Migrate(string newLocation);
/// <summary>
/// A general purpose migration method to move the storage to a different location.
/// <param name="newStorage">The target storage of the migration.</param>
/// </summary>
public virtual void Migrate(Storage newStorage)
{
var source = new DirectoryInfo(GetFullPath("."));
var destination = new DirectoryInfo(newStorage.GetFullPath("."));
// using Uri is the easiest way to check equality and contains (https://stackoverflow.com/a/7710620)
var sourceUri = new Uri(source.FullName + Path.DirectorySeparatorChar);
var destinationUri = new Uri(destination.FullName + Path.DirectorySeparatorChar);
if (sourceUri == destinationUri)
throw new ArgumentException("Destination provided is already the current location", nameof(newStorage));
if (sourceUri.IsBaseOf(destinationUri))
throw new ArgumentException("Destination provided is inside the source", nameof(newStorage));
// ensure the new location has no files present, else hard abort
if (destination.Exists)
{
if (destination.GetFiles().Length > 0 || destination.GetDirectories().Length > 0)
throw new ArgumentException("Destination provided already has files or directories present", nameof(newStorage));
}
CopyRecursive(source, destination);
ChangeTargetStorage(newStorage);
DeleteRecursive(source);
}
protected void DeleteRecursive(DirectoryInfo target, bool topLevelExcludes = true)
{