Move sync mirror actions to mirror service package (#8518)

* move sync mirror actions to mirror service

* fix go.mod

* fix lint

* fix lint

services/mirror/sync.go

@@ -0,0 +1,87 @@
+// 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 mirror
+
+import (
+	"encoding/json"
+	"fmt"
+
+	"code.gitea.io/gitea/models"
+	"code.gitea.io/gitea/modules/setting"
+	api "code.gitea.io/gitea/modules/structs"
+)
+
+func syncAction(opType models.ActionType, repo *models.Repository, refName string, data []byte) error {
+	if err := models.NotifyWatchers(&models.Action{
+		ActUserID: repo.OwnerID,
+		ActUser:   repo.MustOwner(),
+		OpType:    opType,
+		RepoID:    repo.ID,
+		Repo:      repo,
+		IsPrivate: repo.IsPrivate,
+		RefName:   refName,
+		Content:   string(data),
+	}); err != nil {
+		return fmt.Errorf("notifyWatchers: %v", err)
+	}
+
+	defer func() {
+		go models.HookQueue.Add(repo.ID)
+	}()
+
+	return nil
+}
+
+// SyncPushActionOptions mirror synchronization action options.
+type SyncPushActionOptions struct {
+	RefName     string
+	OldCommitID string
+	NewCommitID string
+	Commits     *models.PushCommits
+}
+
+// SyncPushAction adds new action for mirror synchronization of pushed commits.
+func SyncPushAction(repo *models.Repository, opts SyncPushActionOptions) error {
+	if len(opts.Commits.Commits) > setting.UI.FeedMaxCommitNum {
+		opts.Commits.Commits = opts.Commits.Commits[:setting.UI.FeedMaxCommitNum]
+	}
+
+	apiCommits, err := opts.Commits.ToAPIPayloadCommits(repo.RepoPath(), repo.HTMLURL())
+	if err != nil {
+		return err
+	}
+
+	opts.Commits.CompareURL = repo.ComposeCompareURL(opts.OldCommitID, opts.NewCommitID)
+	apiPusher := repo.MustOwner().APIFormat()
+	if err := models.PrepareWebhooks(repo, models.HookEventPush, &api.PushPayload{
+		Ref:        opts.RefName,
+		Before:     opts.OldCommitID,
+		After:      opts.NewCommitID,
+		CompareURL: setting.AppURL + opts.Commits.CompareURL,
+		Commits:    apiCommits,
+		Repo:       repo.APIFormat(models.AccessModeOwner),
+		Pusher:     apiPusher,
+		Sender:     apiPusher,
+	}); err != nil {
+		return fmt.Errorf("PrepareWebhooks: %v", err)
+	}
+
+	data, err := json.Marshal(opts.Commits)
+	if err != nil {
+		return err
+	}
+
+	return syncAction(models.ActionMirrorSyncPush, repo, opts.RefName, data)
+}
+
+// SyncCreateAction adds new action for mirror synchronization of new reference.
+func SyncCreateAction(repo *models.Repository, refName string) error {
+	return syncAction(models.ActionMirrorSyncCreate, repo, refName, nil)
+}
+
+// SyncDeleteAction adds new action for mirror synchronization of delete reference.
+func SyncDeleteAction(repo *models.Repository, refName string) error {
+	return syncAction(models.ActionMirrorSyncDelete, repo, refName, nil)
+}