Add git hooks and webhooks to template repositories; move to services (#8926)

* Add git hooks and webhooks to template options

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Update models/repo.go

Co-Authored-By: guillep2k <18600385+guillep2k@users.noreply.github.com>

* Add tooltip if the user can't edit git hooks

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Close repositories after copying git hooks

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Wording

Co-Authored-By: guillep2k <18600385+guillep2k@users.noreply.github.com>

* Restructure for services

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Return errors

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Move GenerateRepository to using a DBContext

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Wrap with models.WithTx

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Remove debug print

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Move if-error-delete-repo outside WithTx

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Return nil if no repo generated

Signed-off-by: jolheiser <john.olheiser@gmail.com>

models/repo_generate.go

@@ -0,0 +1,162 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package models
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+	"time"
+
+	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/log"
+
+	"github.com/unknwon/com"
+)
+
+// generateRepository initializes repository from template
+func generateRepository(e Engine, repo, templateRepo *Repository) (err error) {
+	tmpDir := filepath.Join(os.TempDir(), "gitea-"+repo.Name+"-"+com.ToStr(time.Now().Nanosecond()))
+
+	if err := os.MkdirAll(tmpDir, os.ModePerm); err != nil {
+		return fmt.Errorf("Failed to create dir %s: %v", tmpDir, err)
+	}
+
+	defer func() {
+		if err := os.RemoveAll(tmpDir); err != nil {
+			log.Error("RemoveAll: %v", err)
+		}
+	}()
+
+	if err = generateRepoCommit(e, repo, templateRepo, tmpDir); err != nil {
+		return fmt.Errorf("generateRepoCommit: %v", err)
+	}
+
+	// re-fetch repo
+	if repo, err = getRepositoryByID(e, repo.ID); err != nil {
+		return fmt.Errorf("getRepositoryByID: %v", err)
+	}
+
+	repo.DefaultBranch = "master"
+	if err = updateRepository(e, repo, false); err != nil {
+		return fmt.Errorf("updateRepository: %v", err)
+	}
+
+	return nil
+}
+
+// GenerateRepository generates a repository from a template
+func GenerateRepository(ctx DBContext, doer, owner *User, templateRepo *Repository, opts GenerateRepoOptions) (_ *Repository, err error) {
+	generateRepo := &Repository{
+		OwnerID:       owner.ID,
+		Owner:         owner,
+		Name:          opts.Name,
+		LowerName:     strings.ToLower(opts.Name),
+		Description:   opts.Description,
+		IsPrivate:     opts.Private,
+		IsEmpty:       !opts.GitContent || templateRepo.IsEmpty,
+		IsFsckEnabled: templateRepo.IsFsckEnabled,
+		TemplateID:    templateRepo.ID,
+	}
+
+	if err = createRepository(ctx.e, doer, owner, generateRepo); err != nil {
+		return nil, err
+	}
+
+	repoPath := RepoPath(owner.Name, generateRepo.Name)
+	if err = checkInitRepository(repoPath); err != nil {
+		return generateRepo, err
+	}
+
+	return generateRepo, nil
+}
+
+// GenerateGitContent generates git content from a template repository
+func GenerateGitContent(ctx DBContext, templateRepo, generateRepo *Repository) error {
+	if err := generateRepository(ctx.e, generateRepo, templateRepo); err != nil {
+		return err
+	}
+
+	if err := generateRepo.updateSize(ctx.e); err != nil {
+		return fmt.Errorf("failed to update size for repository: %v", err)
+	}
+
+	if err := copyLFS(ctx.e, generateRepo, templateRepo); err != nil {
+		return fmt.Errorf("failed to copy LFS: %v", err)
+	}
+	return nil
+}
+
+// GenerateTopics generates topics from a template repository
+func GenerateTopics(ctx DBContext, templateRepo, generateRepo *Repository) error {
+	for _, topic := range templateRepo.Topics {
+		if _, err := addTopicByNameToRepo(ctx.e, generateRepo.ID, topic); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// GenerateGitHooks generates git hooks from a template repository
+func GenerateGitHooks(ctx DBContext, templateRepo, generateRepo *Repository) error {
+	generateGitRepo, err := git.OpenRepository(generateRepo.repoPath(ctx.e))
+	if err != nil {
+		return err
+	}
+	defer generateGitRepo.Close()
+
+	templateGitRepo, err := git.OpenRepository(templateRepo.repoPath(ctx.e))
+	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
+}
+
+// GenerateWebhooks generates webhooks from a template repository
+func GenerateWebhooks(ctx DBContext, templateRepo, generateRepo *Repository) error {
+	templateWebhooks, err := GetWebhooksByRepoID(templateRepo.ID)
+	if err != nil {
+		return err
+	}
+
+	for _, templateWebhook := range templateWebhooks {
+		generateWebhook := &Webhook{
+			RepoID:       generateRepo.ID,
+			URL:          templateWebhook.URL,
+			HTTPMethod:   templateWebhook.HTTPMethod,
+			ContentType:  templateWebhook.ContentType,
+			Secret:       templateWebhook.Secret,
+			HookEvent:    templateWebhook.HookEvent,
+			IsActive:     templateWebhook.IsActive,
+			HookTaskType: templateWebhook.HookTaskType,
+			OrgID:        templateWebhook.OrgID,
+			Events:       templateWebhook.Events,
+			Meta:         templateWebhook.Meta,
+		}
+		if err := createWebhook(ctx.e, generateWebhook); err != nil {
+			return err
+		}
+	}
+	return nil
+}