Some repository refactors (#17950)

* some repository refactors

* remove unnecessary code

* Fix test

* Remove unnecessary banner

services/repository/hooks.go

@@ -10,6 +10,7 @@ import (
 
 	"code.gitea.io/gitea/models/db"
 	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/modules/git"
 	"code.gitea.io/gitea/modules/log"
 	repo_module "code.gitea.io/gitea/modules/repository"
 
@@ -50,3 +51,36 @@ func SyncRepositoryHooks(ctx context.Context) error {
 	log.Trace("Finished: SyncRepositoryHooks")
 	return nil
 }
+
+// GenerateGitHooks generates git hooks from a template repository
+func GenerateGitHooks(ctx context.Context, templateRepo, generateRepo *repo_model.Repository) error {
+	generateGitRepo, err := git.OpenRepository(generateRepo.RepoPath())
+	if err != nil {
+		return err
+	}
+	defer generateGitRepo.Close()
+
+	templateGitRepo, err := git.OpenRepository(templateRepo.RepoPath())
+	if err != nil {
+		return err
+	}
+	defer templateGitRepo.Close()
+
+	templateHooks, err := templateGitRepo.Hooks()
+	if err != nil {
+		return err
+	}
+
+	for _, templateHook := range templateHooks {
+		generateHook, err := generateGitRepo.GetHook(templateHook.Name())
+		if err != nil {
+			return err
+		}
+
+		generateHook.Content = templateHook.Content
+		if err := generateHook.Update(); err != nil {
+			return err
+		}
+	}
+	return nil
+}