Wondering what people have changed from the books implementation of custom migrations? One thing I ran into is that when running migrateStoreAt, temporary files are never cleaned up.
Should run
do {
try fileManager.removeItem(at: destination)
} catch {
log.error(error)
}
Before running migrationManager.migrateStore.
Hey @maximilian!
I don’t think that the -wal and -shm counterpart files are to do with migration. They’re related to the default journalling mode used by SQLite and I don’t think that they should be deleted during migrations.
This post should better explain what they are doing: http://pinkstone.co.uk/how-to-remove-wal-files-in-core-data/
Hope that helps 
@liamnichols Running migrations again and I realize why I clean those files up, the migration creates a ~1 version of the files to move it, should the -wal and -shm files be cleaned up? or moved to replace the original ones?
