Restore command (#593)

Add waiting for changes to config file

Add max size for config files

Restore files

Restore database file

Expose migrate to

Move init stuff to seperate package

Add restoring config file

Co-authored-by: kolaente <k@knt.li>
Reviewed-on: https://kolaente.dev/vikunja/api/pulls/593

pkg/cmd/migrate.go

@@ -17,6 +17,7 @@
 package cmd
 
 import (
+	"code.vikunja.io/api/pkg/initialize"
 	"code.vikunja.io/api/pkg/migration"
 	"github.com/spf13/cobra"
 )
@@ -36,7 +37,7 @@ var migrateCmd = &cobra.Command{
 	Use:   "migrate",
 	Short: "Run all database migrations which didn't already run.",
 	PersistentPreRun: func(cmd *cobra.Command, args []string) {
-		lightInit()
+		initialize.LightInit()
 	},
 	Run: func(cmd *cobra.Command, args []string) {
 		migration.Migrate(nil)