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Merge pull request #19586 from peppy/realm-versioning-for-debug

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Version realm files for debug executions
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Dan Balasescu 2022-08-10 21:17:51 +09:00 committed by GitHub
commit 98c7138803
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1 changed files with 50 additions and 0 deletions
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osu.Game/Database/RealmAccess.cs
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@ -173,6 +173,11 @@ namespace osu.Game.Database
if (!Filename.EndsWith(realm_extension, StringComparison.Ordinal))
Filename += realm_extension;
#if DEBUG
if (!DebugUtils.IsNUnitRunning)
applyFilenameSchemaSuffix(ref Filename);
#endif
string newerVersionFilename = $"{Filename.Replace(realm_extension, string.Empty)}_newer_version{realm_extension}";
// Attempt to recover a newer database version if available.
@ -212,6 +217,51 @@ namespace osu.Game.Database
}
}
/// <summary>
/// Some developers may be annoyed if a newer version migration (ie. caused by testing a pull request)
/// cause their test database to be unusable with previous versions.
/// To get around this, store development databases against their realm version.
/// Note that this means changes made on newer realm versions will disappear.
/// </summary>
private void applyFilenameSchemaSuffix(ref string filename)
{
string originalFilename = filename;
filename = getVersionedFilename(schema_version);
// First check if the current realm version already exists...
if (storage.Exists(filename))
return;
// Check for a previous version we can use as a base database to migrate from...
for (int i = schema_version - 1; i >= 0; i--)
{
string previousFilename = getVersionedFilename(i);
if (storage.Exists(previousFilename))
{
copyPreviousVersion(previousFilename, filename);
return;
}
}
// Finally, check for a non-versioned file exists (aka before this method was added)...
if (storage.Exists(originalFilename))
copyPreviousVersion(originalFilename, filename);
void copyPreviousVersion(string previousFilename, string newFilename)
{
using (var previous = storage.GetStream(previousFilename))
using (var current = storage.CreateFileSafely(newFilename))
{
Logger.Log(@$"Copying previous realm database {previousFilename} to {newFilename} for migration to schema version {schema_version}");
previous.CopyTo(current);
}
}
string getVersionedFilename(int version) => originalFilename.Replace(realm_extension, $"_{version}{realm_extension}");
}
private void attemptRecoverFromFile(string recoveryFilename)
{
Logger.Log($@"Performing recovery from {recoveryFilename}", LoggingTarget.Database);