try to add env for pre-receive hook

routers/private/hook.go

@@ -199,6 +199,11 @@ func HookPreReceive(ctx *macaron.Context, opts private.HookOptions) {
 		env = append(env,
 			private.GitQuarantinePath+"="+opts.GitQuarantinePath)
 	}
+	env = append(env,
+		models.EnvRepoSize+"="+fmt.Sprint(repo.Size),
+		models.EnvRepoMaxFileSize+"="+fmt.Sprint(setting.Repository.Upload.FileMaxSize),
+		models.EnvRepoMaxSize+"="+fmt.Sprint(setting.Repository.RepoMaxSize),
+		models.EnvPushSizeCheckFlag+"="+fmt.Sprint(setting.Repository.Upload.ShellFlag))
 
 	for i := range opts.OldCommitIDs {
 		oldCommitID := opts.OldCommitIDs[i]