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/commit_status_test.go

@@ -0,0 +1,50 @@
+// Copyright 2017 Gitea. 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/db"
+	git_model "code.gitea.io/gitea/models/git"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+	"code.gitea.io/gitea/modules/structs"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestGetCommitStatuses(t *testing.T) {
+	assert.NoError(t, unittest.PrepareTestDatabase())
+
+	repo1 := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1}).(*repo_model.Repository)
+
+	sha1 := "1234123412341234123412341234123412341234"
+
+	statuses, maxResults, err := git_model.GetCommitStatuses(repo1, sha1, &git_model.CommitStatusOptions{ListOptions: db.ListOptions{Page: 1, PageSize: 50}})
+	assert.NoError(t, err)
+	assert.Equal(t, int(maxResults), 5)
+	assert.Len(t, statuses, 5)
+
+	assert.Equal(t, "ci/awesomeness", statuses[0].Context)
+	assert.Equal(t, structs.CommitStatusPending, statuses[0].State)
+	assert.Equal(t, "https://try.gitea.io/api/v1/repos/user2/repo1/statuses/1234123412341234123412341234123412341234", statuses[0].APIURL())
+
+	assert.Equal(t, "cov/awesomeness", statuses[1].Context)
+	assert.Equal(t, structs.CommitStatusWarning, statuses[1].State)
+	assert.Equal(t, "https://try.gitea.io/api/v1/repos/user2/repo1/statuses/1234123412341234123412341234123412341234", statuses[1].APIURL())
+
+	assert.Equal(t, "cov/awesomeness", statuses[2].Context)
+	assert.Equal(t, structs.CommitStatusSuccess, statuses[2].State)
+	assert.Equal(t, "https://try.gitea.io/api/v1/repos/user2/repo1/statuses/1234123412341234123412341234123412341234", statuses[2].APIURL())
+
+	assert.Equal(t, "ci/awesomeness", statuses[3].Context)
+	assert.Equal(t, structs.CommitStatusFailure, statuses[3].State)
+	assert.Equal(t, "https://try.gitea.io/api/v1/repos/user2/repo1/statuses/1234123412341234123412341234123412341234", statuses[3].APIURL())
+
+	assert.Equal(t, "deploy/awesomeness", statuses[4].Context)
+	assert.Equal(t, structs.CommitStatusError, statuses[4].State)
+	assert.Equal(t, "https://try.gitea.io/api/v1/repos/user2/repo1/statuses/1234123412341234123412341234123412341234", statuses[4].APIURL())
+}