Move some code into models/git (#19879)

* Move access and repo permission to models/perm/access

* fix test

* Move some git related files into sub package models/git

* Fix build

* fix git test

* move lfs to sub package

* move more git related functions to models/git

* Move functions sequence

* Some improvements per @KN4CK3R and @delvh

models/git/branches_test.go

@@ -0,0 +1,163 @@
+// Copyright 2017 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 git_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models"
+	"code.gitea.io/gitea/models/db"
+	git_model "code.gitea.io/gitea/models/git"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestAddDeletedBranch(t *testing.T) {
+	assert.NoError(t, unittest.PrepareTestDatabase())
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1}).(*repo_model.Repository)
+	firstBranch := unittest.AssertExistsAndLoadBean(t, &git_model.DeletedBranch{ID: 1}).(*git_model.DeletedBranch)
+
+	assert.Error(t, git_model.AddDeletedBranch(repo.ID, firstBranch.Name, firstBranch.Commit, firstBranch.DeletedByID))
+	assert.NoError(t, git_model.AddDeletedBranch(repo.ID, "test", "5655464564554545466464656", int64(1)))
+}
+
+func TestGetDeletedBranches(t *testing.T) {
+	assert.NoError(t, unittest.PrepareTestDatabase())
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1}).(*repo_model.Repository)
+
+	branches, err := git_model.GetDeletedBranches(repo.ID)
+	assert.NoError(t, err)
+	assert.Len(t, branches, 2)
+}
+
+func TestGetDeletedBranch(t *testing.T) {
+	assert.NoError(t, unittest.PrepareTestDatabase())
+	firstBranch := unittest.AssertExistsAndLoadBean(t, &git_model.DeletedBranch{ID: 1}).(*git_model.DeletedBranch)
+
+	assert.NotNil(t, getDeletedBranch(t, firstBranch))
+}
+
+func TestDeletedBranchLoadUser(t *testing.T) {
+	assert.NoError(t, unittest.PrepareTestDatabase())
+
+	firstBranch := unittest.AssertExistsAndLoadBean(t, &git_model.DeletedBranch{ID: 1}).(*git_model.DeletedBranch)
+	secondBranch := unittest.AssertExistsAndLoadBean(t, &git_model.DeletedBranch{ID: 2}).(*git_model.DeletedBranch)
+
+	branch := getDeletedBranch(t, firstBranch)
+	assert.Nil(t, branch.DeletedBy)
+	branch.LoadUser()
+	assert.NotNil(t, branch.DeletedBy)
+	assert.Equal(t, "user1", branch.DeletedBy.Name)
+
+	branch = getDeletedBranch(t, secondBranch)
+	assert.Nil(t, branch.DeletedBy)
+	branch.LoadUser()
+	assert.NotNil(t, branch.DeletedBy)
+	assert.Equal(t, "Ghost", branch.DeletedBy.Name)
+}
+
+func TestRemoveDeletedBranch(t *testing.T) {
+	assert.NoError(t, unittest.PrepareTestDatabase())
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1}).(*repo_model.Repository)
+
+	firstBranch := unittest.AssertExistsAndLoadBean(t, &git_model.DeletedBranch{ID: 1}).(*git_model.DeletedBranch)
+
+	err := git_model.RemoveDeletedBranchByID(repo.ID, 1)
+	assert.NoError(t, err)
+	unittest.AssertNotExistsBean(t, firstBranch)
+	unittest.AssertExistsAndLoadBean(t, &git_model.DeletedBranch{ID: 2})
+}
+
+func getDeletedBranch(t *testing.T, branch *git_model.DeletedBranch) *git_model.DeletedBranch {
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1}).(*repo_model.Repository)
+
+	deletedBranch, err := git_model.GetDeletedBranchByID(repo.ID, branch.ID)
+	assert.NoError(t, err)
+	assert.Equal(t, branch.ID, deletedBranch.ID)
+	assert.Equal(t, branch.Name, deletedBranch.Name)
+	assert.Equal(t, branch.Commit, deletedBranch.Commit)
+	assert.Equal(t, branch.DeletedByID, deletedBranch.DeletedByID)
+
+	return deletedBranch
+}
+
+func TestFindRenamedBranch(t *testing.T) {
+	assert.NoError(t, unittest.PrepareTestDatabase())
+	branch, exist, err := git_model.FindRenamedBranch(1, "dev")
+	assert.NoError(t, err)
+	assert.Equal(t, true, exist)
+	assert.Equal(t, "master", branch.To)
+
+	_, exist, err = git_model.FindRenamedBranch(1, "unknow")
+	assert.NoError(t, err)
+	assert.Equal(t, false, exist)
+}
+
+func TestRenameBranch(t *testing.T) {
+	assert.NoError(t, unittest.PrepareTestDatabase())
+	repo1 := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1}).(*repo_model.Repository)
+	_isDefault := false
+
+	ctx, committer, err := db.TxContext()
+	defer committer.Close()
+	assert.NoError(t, err)
+	assert.NoError(t, git_model.UpdateProtectBranch(ctx, repo1, &git_model.ProtectedBranch{
+		RepoID:     repo1.ID,
+		BranchName: "master",
+	}, git_model.WhitelistOptions{}))
+	assert.NoError(t, committer.Commit())
+
+	assert.NoError(t, git_model.RenameBranch(repo1, "master", "main", func(isDefault bool) error {
+		_isDefault = isDefault
+		return nil
+	}))
+
+	assert.Equal(t, true, _isDefault)
+	repo1 = unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1}).(*repo_model.Repository)
+	assert.Equal(t, "main", repo1.DefaultBranch)
+
+	pull := unittest.AssertExistsAndLoadBean(t, &models.PullRequest{ID: 1}).(*models.PullRequest) // merged
+	assert.Equal(t, "master", pull.BaseBranch)
+
+	pull = unittest.AssertExistsAndLoadBean(t, &models.PullRequest{ID: 2}).(*models.PullRequest) // open
+	assert.Equal(t, "main", pull.BaseBranch)
+
+	renamedBranch := unittest.AssertExistsAndLoadBean(t, &git_model.RenamedBranch{ID: 2}).(*git_model.RenamedBranch)
+	assert.Equal(t, "master", renamedBranch.From)
+	assert.Equal(t, "main", renamedBranch.To)
+	assert.Equal(t, int64(1), renamedBranch.RepoID)
+
+	unittest.AssertExistsAndLoadBean(t, &git_model.ProtectedBranch{
+		RepoID:     repo1.ID,
+		BranchName: "main",
+	})
+}
+
+func TestOnlyGetDeletedBranchOnCorrectRepo(t *testing.T) {
+	assert.NoError(t, unittest.PrepareTestDatabase())
+
+	// Get deletedBranch with ID of 1 on repo with ID 2.
+	// This should return a nil branch as this deleted branch
+	// is actually on repo with ID 1.
+	repo2 := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 2}).(*repo_model.Repository)
+
+	deletedBranch, err := git_model.GetDeletedBranchByID(repo2.ID, 1)
+
+	// Expect no error, and the returned branch is nil.
+	assert.NoError(t, err)
+	assert.Nil(t, deletedBranch)
+
+	// Now get the deletedBranch with ID of 1 on repo with ID 1.
+	// This should return the deletedBranch.
+	repo1 := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1}).(*repo_model.Repository)
+
+	deletedBranch, err = git_model.GetDeletedBranchByID(repo1.ID, 1)
+
+	// Expect no error, and the returned branch to be not nil.
+	assert.NoError(t, err)
+	assert.NotNil(t, deletedBranch)
+}