Split migrations folder (#21549)

There are too many files in `models/migrations` folder so that I split
them into sub folders.

1 files changed, 0 insertions, 54 deletions

diff --git a/models/migrations/v175.go b/models/migrations/v175.go
deleted file mode 100644
index 2dfefe987b..0000000000
--- a/models/migrations/v175.go
+++ /dev/null
@@ -1,54 +0,0 @@
-// Copyright 2021 The Gitea Authors. All rights reserved.
-// Use of this source code is governed by a MIT-style
-// license that can be found in the LICENSE file.
-
-package migrations
-
-import (
-	"fmt"
-	"regexp"
-
-	"code.gitea.io/gitea/modules/log"
-	"code.gitea.io/gitea/modules/setting"
-
-	"xorm.io/xorm"
-)
-
-func fixPostgresIDSequences(x *xorm.Engine) error {
-	if !setting.Database.UsePostgreSQL {
-		return nil
-	}
-
-	sess := x.NewSession()
-	defer sess.Close()
-	if err := sess.Begin(); err != nil {
-		return err
-	}
-
-	var sequences []string
-	schema := sess.Engine().Dialect().URI().Schema
-
-	sess.Engine().SetSchema("")
-	if err := sess.Table("information_schema.sequences").Cols("sequence_name").Where("sequence_name LIKE 'tmp_recreate__%_id_seq%' AND sequence_catalog = ?", setting.Database.Name).Find(&sequences); err != nil {
-		log.Error("Unable to find sequences: %v", err)
-		return err
-	}
-	sess.Engine().SetSchema(schema)
-
-	sequenceRegexp := regexp.MustCompile(`tmp_recreate__(\w+)_id_seq.*`)
-
-	for _, sequence := range sequences {
-		tableName := sequenceRegexp.FindStringSubmatch(sequence)[1]
-		newSequenceName := tableName + "_id_seq"
-		if _, err := sess.Exec(fmt.Sprintf("ALTER SEQUENCE `%s` RENAME TO `%s`", sequence, newSequenceName)); err != nil {
-			log.Error("Unable to rename %s to %s. Error: %v", sequence, newSequenceName, err)
-			return err
-		}
-		if _, err := sess.Exec(fmt.Sprintf("SELECT setval('%s', COALESCE((SELECT MAX(id)+1 FROM `%s`), 1), false)", newSequenceName, tableName)); err != nil {
-			log.Error("Unable to reset sequence %s for %s. Error: %v", newSequenceName, tableName, err)
-			return err
-		}
-	}
-
-	return sess.Commit()
-}