Avatars and Repo avatars support storing in minio (#12516)

* Avatar support minio

* Support repo avatar minio storage

* Add missing migration

* Fix bug

* Fix test

* Add test for minio store type on avatars and repo avatars; Add documents

* Fix bug

* Fix bug

* Add back missed avatar link method

* refactor codes

* Simplify the codes

* Code improvements

* Fix lint

* Fix test mysql

* Fix test mysql

* Fix test mysql

* Fix settings

* Fix test

* fix test

* Fix bug

models/org.go

@@ -11,10 +11,10 @@ import (
 
 	"code.gitea.io/gitea/modules/log"
 	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/storage"
 	"code.gitea.io/gitea/modules/structs"
 	"code.gitea.io/gitea/modules/util"
 
-	"github.com/unknwon/com"
 	"xorm.io/builder"
 	"xorm.io/xorm"
 )
@@ -310,11 +310,9 @@ func deleteOrg(e *xorm.Session, u *User) error {
 	}
 
 	if len(u.Avatar) > 0 {
-		avatarPath := u.CustomAvatarPath()
-		if com.IsExist(avatarPath) {
-			if err := util.Remove(avatarPath); err != nil {
-				return fmt.Errorf("Failed to remove %s: %v", avatarPath, err)
-			}
+		avatarPath := u.CustomAvatarRelativePath()
+		if err := storage.Avatars.Delete(avatarPath); err != nil {
+			return fmt.Errorf("Failed to remove %s: %v", avatarPath, err)
 		}
 	}