Fix all possible setting error related storages and added some tests (#23911)

Follow up #22405

Fix #20703 

This PR rewrites storage configuration read sequences with some breaks
and tests. It becomes more strict than before and also fixed some
inherit problems.

- Move storage's MinioConfig struct into setting, so after the
configuration loading, the values will be stored into the struct but not
still on some section.
- All storages configurations should be stored on one section,
configuration items cannot be overrided by multiple sections. The
prioioty of configuration is `[attachment]` > `[storage.attachments]` |
`[storage.customized]` > `[storage]` > `default`
- For extra override configuration items, currently are `SERVE_DIRECT`,
`MINIO_BASE_PATH`, `MINIO_BUCKET`, which could be configured in another
section. The prioioty of the override configuration is `[attachment]` >
`[storage.attachments]` > `default`.
- Add more tests for storages configurations.
- Update the storage documentations.

---------

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

3 files changed, 6 insertions, 6 deletions

diff --git a/models/migrations/v1_10/v96.go b/models/migrations/v1_10/v96.go
index 422defe838..34c8240031 100644
--- a/models/migrations/v1_10/v96.go
+++ b/models/migrations/v1_10/v96.go
@@ -53,7 +53,7 @@ func DeleteOrphanedAttachments(x *xorm.Engine) error {
 
 		for _, attachment := range attachments {
 			uuid := attachment.UUID
-			if err := util.RemoveAll(filepath.Join(setting.Attachment.Path, uuid[0:1], uuid[1:2], uuid)); err != nil {
+			if err := util.RemoveAll(filepath.Join(setting.Attachment.Storage.Path, uuid[0:1], uuid[1:2], uuid)); err != nil {
 				return err
 			}
 		}
diff --git a/models/migrations/v1_11/v112.go b/models/migrations/v1_11/v112.go
index ff1f972204..0857663119 100644
--- a/models/migrations/v1_11/v112.go
+++ b/models/migrations/v1_11/v112.go
@@ -30,7 +30,7 @@ func RemoveAttachmentMissedRepo(x *xorm.Engine) error {
 
 		for i := 0; i < len(attachments); i++ {
 			uuid := attachments[i].UUID
-			if err = util.RemoveAll(filepath.Join(setting.Attachment.Path, uuid[0:1], uuid[1:2], uuid)); err != nil {
+			if err = util.RemoveAll(filepath.Join(setting.Attachment.Storage.Path, uuid[0:1], uuid[1:2], uuid)); err != nil {
 				fmt.Printf("Error: %v", err) //nolint:forbidigo
 			}
 		}
diff --git a/models/migrations/v1_11/v115.go b/models/migrations/v1_11/v115.go
index da935f6514..8c631cfd0b 100644
--- a/models/migrations/v1_11/v115.go
+++ b/models/migrations/v1_11/v115.go
@@ -61,7 +61,7 @@ func RenameExistingUserAvatarName(x *xorm.Engine) error {
 		for _, user := range users {
 			oldAvatar := user.Avatar
 
-			if stat, err := os.Stat(filepath.Join(setting.Avatar.Path, oldAvatar)); err != nil || !stat.Mode().IsRegular() {
+			if stat, err := os.Stat(filepath.Join(setting.Avatar.Storage.Path, oldAvatar)); err != nil || !stat.Mode().IsRegular() {
 				if err == nil {
 					err = fmt.Errorf("Error: \"%s\" is not a regular file", oldAvatar)
 				}
@@ -86,7 +86,7 @@ func RenameExistingUserAvatarName(x *xorm.Engine) error {
 				return fmt.Errorf("[user: %s] user table update: %w", user.LowerName, err)
 			}
 
-			deleteList.Add(filepath.Join(setting.Avatar.Path, oldAvatar))
+			deleteList.Add(filepath.Join(setting.Avatar.Storage.Path, oldAvatar))
 			migrated++
 			select {
 			case <-ticker.C:
@@ -135,7 +135,7 @@ func RenameExistingUserAvatarName(x *xorm.Engine) error {
 // copyOldAvatarToNewLocation copies oldAvatar to newAvatarLocation
 // and returns newAvatar location
 func copyOldAvatarToNewLocation(userID int64, oldAvatar string) (string, error) {
-	fr, err := os.Open(filepath.Join(setting.Avatar.Path, oldAvatar))
+	fr, err := os.Open(filepath.Join(setting.Avatar.Storage.Path, oldAvatar))
 	if err != nil {
 		return "", fmt.Errorf("os.Open: %w", err)
 	}
@@ -151,7 +151,7 @@ func copyOldAvatarToNewLocation(userID int64, oldAvatar string) (string, error)
 		return newAvatar, nil
 	}
 
-	if err := os.WriteFile(filepath.Join(setting.Avatar.Path, newAvatar), data, 0o666); err != nil {
+	if err := os.WriteFile(filepath.Join(setting.Avatar.Storage.Path, newAvatar), data, 0o666); err != nil {
 		return "", fmt.Errorf("os.WriteFile: %w", err)
 	}