Add push to remote mirror repository (#15157)

* Added push mirror model.

* Integrated push mirror into queue.

* Moved methods into own file.

* Added basic implementation.

* Mirror wiki too.

* Removed duplicated method.

* Get url for different remotes.

* Added migration.

* Unified remote url access.

* Add/Remove push mirror remotes.

* Prevent hangs with missing credentials.

* Moved code between files.

* Changed sanitizer interface.

* Added push mirror backend methods.

* Only update the mirror remote.

* Limit refs on push.

* Added UI part.

* Added missing table.

* Delete mirror if repository gets removed.

* Changed signature. Handle object errors.

* Added upload method.

* Added "upload" unit tests.

* Added transfer adapter unit tests.

* Send correct headers.

* Added pushing of LFS objects.

* Added more logging.

* Simpler body handling.

* Process files in batches to reduce HTTP calls.

* Added created timestamp.

* Fixed invalid column name.

* Changed name to prevent xorm auto setting.

* Remove table header im empty.

* Strip exit code from error message.

* Added docs page about mirroring.

* Fixed date.

* Fixed merge errors.

* Moved test to integrations.

* Added push mirror test.

* Added test.

services/forms/repo_form.go

@@ -113,18 +113,23 @@ func ParseRemoteAddr(remoteAddr, authUsername, authPassword string) (string, err
 
 // RepoSettingForm form for changing repository settings
 type RepoSettingForm struct {
-	RepoName       string `binding:"Required;AlphaDashDot;MaxSize(100)"`
-	Description    string `binding:"MaxSize(255)"`
-	Website        string `binding:"ValidUrl;MaxSize(255)"`
-	Interval       string
-	MirrorAddress  string
-	MirrorUsername string
-	MirrorPassword string
-	LFS            bool   `form:"mirror_lfs"`
-	LFSEndpoint    string `form:"mirror_lfs_endpoint"`
-	Private        bool
-	Template       bool
-	EnablePrune    bool
+	RepoName           string `binding:"Required;AlphaDashDot;MaxSize(100)"`
+	Description        string `binding:"MaxSize(255)"`
+	Website            string `binding:"ValidUrl;MaxSize(255)"`
+	Interval           string
+	MirrorAddress      string
+	MirrorUsername     string
+	MirrorPassword     string
+	LFS                bool   `form:"mirror_lfs"`
+	LFSEndpoint        string `form:"mirror_lfs_endpoint"`
+	PushMirrorID       string
+	PushMirrorAddress  string
+	PushMirrorUsername string
+	PushMirrorPassword string
+	PushMirrorInterval string
+	Private            bool
+	Template           bool
+	EnablePrune        bool
 
 	// Advanced settings
 	EnableWiki                            bool