Add new API endpoints for push mirrors management (#19841)

- Add a new push mirror to specific repository
- Sync now ( send all the changes to the configured push mirrors )
- Get list of all push mirrors of a repository
- Get a push mirror by ID
- Delete push mirror by ID

Signed-off-by: Mohamed Sekour <mohamed.sekour@exfo.com>
Signed-off-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: zeripath <art27@cantab.net>

routers/api/v1/api.go

@@ -982,6 +982,15 @@ func Routes() *web.Route {
 					})
 				}, reqRepoReader(unit.TypeReleases))
 				m.Post("/mirror-sync", reqToken(), reqRepoWriter(unit.TypeCode), repo.MirrorSync)
+				m.Post("/push_mirrors-sync", reqAdmin(), repo.PushMirrorSync)
+				m.Group("/push_mirrors", func() {
+					m.Combo("").Get(repo.ListPushMirrors).
+						Post(bind(api.CreatePushMirrorOption{}), repo.AddPushMirror)
+					m.Combo("/{name}").
+						Delete(repo.DeletePushMirrorByRemoteName).
+						Get(repo.GetPushMirrorByName)
+				}, reqAdmin())
+
 				m.Get("/editorconfig/{filename}", context.ReferencesGitRepo(), context.RepoRefForAPI, reqRepoReader(unit.TypeCode), repo.GetEditorconfig)
 				m.Group("/pulls", func() {
 					m.Combo("").Get(repo.ListPullRequests).