Use repo as of renderctx's member rather than a repoPath on metas (#29222)

Use a `gitrepo.Repository` in the markup's RenderContext but not store
the repository's path.

modules/markup/html_test.go

@@ -4,16 +4,13 @@
 package markup_test
 
 import (
-	"context"
 	"io"
-	"os"
 	"strings"
 	"testing"
 
-	"code.gitea.io/gitea/models/unittest"
 	"code.gitea.io/gitea/modules/emoji"
 	"code.gitea.io/gitea/modules/git"
-	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/gitrepo"
 	"code.gitea.io/gitea/modules/markup"
 	"code.gitea.io/gitea/modules/markup/markdown"
 	"code.gitea.io/gitea/modules/setting"
@@ -22,18 +19,33 @@ import (
 	"github.com/stretchr/testify/assert"
 )
 
-var localMetas = map[string]string{
-	"user":     "gogits",
-	"repo":     "gogs",
-	"repoPath": "../../tests/gitea-repositories-meta/user13/repo11.git/",
+var (
+	testRepoOwnerName = "user13"
+	testRepoName      = "repo11"
+	localMetas        = map[string]string{
+		"user": testRepoOwnerName,
+		"repo": testRepoName,
+	}
+)
+
+type mockRepo struct {
+	OwnerName string
+	RepoName  string
 }
 
-func TestMain(m *testing.M) {
-	unittest.InitSettings()
-	if err := git.InitSimple(context.Background()); err != nil {
-		log.Fatal("git init failed, err: %v", err)
+func (m *mockRepo) GetOwnerName() string {
+	return m.OwnerName
+}
+
+func (m *mockRepo) GetName() string {
+	return m.RepoName
+}
+
+func newMockRepo(ownerName, repoName string) gitrepo.Repository {
+	return &mockRepo{
+		OwnerName: ownerName,
+		RepoName:  repoName,
 	}
-	os.Exit(m.Run())
 }
 
 func TestRender_Commits(t *testing.T) {
@@ -46,6 +58,7 @@ func TestRender_Commits(t *testing.T) {
 				AbsolutePrefix: true,
 				Base:           markup.TestRepoURL,
 			},
+			Repo:  newMockRepo(testRepoOwnerName, testRepoName),
 			Metas: localMetas,
 		}, input)
 		assert.NoError(t, err)
@@ -53,7 +66,7 @@ func TestRender_Commits(t *testing.T) {
 	}
 
 	sha := "65f1bf27bc3bf70f64657658635e66094edbcb4d"
-	repo := markup.TestRepoURL
+	repo := markup.TestAppURL + testRepoOwnerName + "/" + testRepoName + "/"
 	commit := util.URLJoin(repo, "commit", sha)
 	tree := util.URLJoin(repo, "tree", sha, "src")