Validate migration files (#18203)

JSON Schema validation for data used by Gitea during migrations

Discussion at https://forum.forgefriends.org/t/common-json-schema-for-repository-information/563

Co-authored-by: Loïc Dachary <loic@dachary.org>

routers/private/restore_repo.go

@@ -24,10 +24,11 @@ func RestoreRepo(ctx *myCtx.PrivateContext) {
 		return
 	}
 	params := struct {
-		RepoDir   string
-		OwnerName string
-		RepoName  string
-		Units     []string
+		RepoDir    string
+		OwnerName  string
+		RepoName   string
+		Units      []string
+		Validation bool
 	}{}
 	if err = json.Unmarshal(bs, &params); err != nil {
 		ctx.JSON(http.StatusInternalServerError, private.Response{
@@ -42,6 +43,7 @@ func RestoreRepo(ctx *myCtx.PrivateContext) {
 		params.OwnerName,
 		params.RepoName,
 		params.Units,
+		params.Validation,
 	); err != nil {
 		ctx.JSON(http.StatusInternalServerError, private.Response{
 			Err: err.Error(),