Refactor cat-file batch operations and support --batch-command approach (#35775)

Replace #34651 and address more problems including fix framework bugs and changing to QueryInfo and QueryContent calls.

---------

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>

modules/git/languagestats/main_test.go

@@ -4,37 +4,11 @@
 package languagestats
 
 import (
-	"fmt"
-	"os"
 	"testing"
 
 	"code.gitea.io/gitea/modules/git"
-	"code.gitea.io/gitea/modules/setting"
-	"code.gitea.io/gitea/modules/util"
 )
 
-func testRun(m *testing.M) error {
-	gitHomePath, err := os.MkdirTemp(os.TempDir(), "git-home")
-	if err != nil {
-		return fmt.Errorf("unable to create temp dir: %w", err)
-	}
-	defer util.RemoveAll(gitHomePath)
-	setting.Git.HomePath = gitHomePath
-
-	if err = git.InitFull(); err != nil {
-		return fmt.Errorf("failed to call Init: %w", err)
-	}
-
-	exitCode := m.Run()
-	if exitCode != 0 {
-		return fmt.Errorf("run test failed, ExitCode=%d", exitCode)
-	}
-	return nil
-}
-
 func TestMain(m *testing.M) {
-	if err := testRun(m); err != nil {
-		_, _ = fmt.Fprintf(os.Stderr, "Test failed: %v", err)
-		os.Exit(1)
-	}
+	git.RunGitTests(m)
 }