Move repository model into models/repo (#17933)

* Some refactors related repository model

* Move more methods out of repository

* Move repository into models/repo

* Fix test

* Fix test

* some improvements

* Remove unnecessary function

1 files changed, 31 insertions, 0 deletions

diff --git a/models/repo/git.go b/models/repo/git.go
new file mode 100644
index 0000000000..509020565a
--- /dev/null
+++ b/models/repo/git.go
@@ -0,0 +1,31 @@
+// Copyright 2021 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 repo
+
+import "code.gitea.io/gitea/models/db"
+
+// MergeStyle represents the approach to merge commits into base branch.
+type MergeStyle string
+
+const (
+	// MergeStyleMerge create merge commit
+	MergeStyleMerge MergeStyle = "merge"
+	// MergeStyleRebase rebase before merging
+	MergeStyleRebase MergeStyle = "rebase"
+	// MergeStyleRebaseMerge rebase before merging with merge commit (--no-ff)
+	MergeStyleRebaseMerge MergeStyle = "rebase-merge"
+	// MergeStyleSquash squash commits into single commit before merging
+	MergeStyleSquash MergeStyle = "squash"
+	// MergeStyleManuallyMerged pr has been merged manually, just mark it as merged directly
+	MergeStyleManuallyMerged MergeStyle = "manually-merged"
+	// MergeStyleRebaseUpdate not a merge style, used to update pull head by rebase
+	MergeStyleRebaseUpdate MergeStyle = "rebase-update-only"
+)
+
+// UpdateDefaultBranch updates the default branch
+func UpdateDefaultBranch(repo *Repository) error {
+	_, err := db.GetEngine(db.DefaultContext).ID(repo.ID).Cols("default_branch").Update(repo)
+	return err
+}