Fix IsObjectExist with gogit

modules/git/repo_branch_gogit.go

@@ -14,13 +14,13 @@ import (
 	"github.com/go-git/go-git/v5/plumbing/storer"
 )
 
-// IsObjectExist returns true if given reference exists in the repository.
+// IsObjectExist returns true if the given object exists in the repository.
 func (repo *Repository) IsObjectExist(name string) bool {
 	if name == "" {
 		return false
 	}
 
-	_, err := repo.gogitRepo.ResolveRevision(plumbing.Revision(name))
+	_, err := repo.gogitRepo.Object(plumbing.AnyObject, plumbing.NewHash(name))
 
 	return err == nil
 }

modules/git/repo_branch_nogogit.go

@@ -16,7 +16,7 @@ import (
 	"code.gitea.io/gitea/modules/log"
 )
 
-// IsObjectExist returns true if given reference exists in the repository.
+// IsObjectExist returns true if the given object exists in the repository.
 func (repo *Repository) IsObjectExist(name string) bool {
 	if name == "" {
 		return false

modules/git/repo_branch_test.go

@@ -8,6 +8,7 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
 )
 
 func TestRepository_GetBranches(t *testing.T) {
@@ -94,3 +95,41 @@ func BenchmarkGetRefsBySha(b *testing.B) {
 	_, _ = bareRepo5.GetRefsBySha("c83380d7056593c51a699d12b9c00627bd5743e9", "")
 	_, _ = bareRepo5.GetRefsBySha("58a4bcc53ac13e7ff76127e0fb518b5262bf09af", "")
 }
+
+func TestRepository_IsObjectExist(t *testing.T) {
+	repo, err := openRepositoryWithDefaultContext(filepath.Join(testReposDir, "repo1_bare"))
+	require.NoError(t, err)
+	defer repo.Close()
+
+	tests := []struct {
+		name string
+		arg  string
+		want bool
+	}{
+		{
+			name: "empty",
+			arg:  "",
+			want: false,
+		},
+		{
+			name: "branch",
+			arg:  "master",
+			want: false,
+		},
+		{
+			name: "commit object",
+			arg:  "ce064814f4a0d337b333e646ece456cd39fab612",
+			want: true,
+		},
+		{
+			name: "blob object",
+			arg:  "153f451b9ee7fa1da317ab17a127e9fd9d384310",
+			want: true,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			assert.Equal(t, tt.want, repo.IsObjectExist(tt.arg))
+		})
+	}
+}