feat: v2 (#599)

Read https://github.com/filebrowser/filebrowser/pull/575.

cmd/import.go

@@ -0,0 +1,30 @@
+package cmd
+
+import (
+	"github.com/filebrowser/filebrowser/v2/storage/bolt/importer"
+	"github.com/spf13/cobra"
+)
+
+func init() {
+	rootCmd.AddCommand(importCmd)
+
+	importCmd.Flags().String("old.database", "", "")
+	importCmd.Flags().String("old.config", "", "")
+	importCmd.MarkFlagRequired("old.database")
+}
+
+var importCmd = &cobra.Command{
+	Use:   "import",
+	Short: "Imports an old configuration",
+	Long:  `Imports an old configuration. This command DOES NOT
+import share links because they are incompatible with
+this version.`,
+	Args:  cobra.NoArgs,
+	Run: func(cmd *cobra.Command, args []string) {
+		oldDB := mustGetString(cmd, "old.database")
+		oldConf := mustGetString(cmd, "old.config")
+
+		err := importer.Import(oldDB, oldConf, databasePath)
+		checkErr(err)
+	},
+}