Add caller to cat-file batch calls (#17082)

Some people still appear to report unclosed cat-files. This PR simply adds the caller
to the process descriptor for the CatFileBatch and CatFileBatchCheck calls.

Signed-off-by: Andrew Thornton <art27@cantab.net>

Co-authored-by: techknowlogick <techknowlogick@gitea.io>

modules/git/batch_reader.go

@@ -8,8 +8,10 @@ import (
 	"bufio"
 	"bytes"
 	"context"
+	"fmt"
 	"io"
 	"math"
+	"runtime"
 	"strconv"
 	"strings"
 
@@ -40,9 +42,14 @@ func CatFileBatchCheck(repoPath string) (WriteCloserError, *bufio.Reader, func()
 		<-closed
 	}
 
+	_, filename, line, _ := runtime.Caller(2)
+	filename = strings.TrimPrefix(filename, callerPrefix)
+
 	go func() {
 		stderr := strings.Builder{}
-		err := NewCommandContext(ctx, "cat-file", "--batch-check").RunInDirFullPipeline(repoPath, batchStdoutWriter, &stderr, batchStdinReader)
+		err := NewCommandContext(ctx, "cat-file", "--batch-check").
+			SetDescription(fmt.Sprintf("%s cat-file --batch-check [repo_path: %s] (%s:%d)", GitExecutable, repoPath, filename, line)).
+			RunInDirFullPipeline(repoPath, batchStdoutWriter, &stderr, batchStdinReader)
 		if err != nil {
 			_ = batchStdoutWriter.CloseWithError(ConcatenateError(err, (&stderr).String()))
 			_ = batchStdinReader.CloseWithError(ConcatenateError(err, (&stderr).String()))
@@ -76,9 +83,14 @@ func CatFileBatch(repoPath string) (WriteCloserError, *bufio.Reader, func()) {
 		<-closed
 	}
 
+	_, filename, line, _ := runtime.Caller(2)
+	filename = strings.TrimPrefix(filename, callerPrefix)
+
 	go func() {
 		stderr := strings.Builder{}
-		err := NewCommandContext(ctx, "cat-file", "--batch").RunInDirFullPipeline(repoPath, batchStdoutWriter, &stderr, batchStdinReader)
+		err := NewCommandContext(ctx, "cat-file", "--batch").
+			SetDescription(fmt.Sprintf("%s cat-file --batch [repo_path: %s] (%s:%d)", GitExecutable, repoPath, filename, line)).
+			RunInDirFullPipeline(repoPath, batchStdoutWriter, &stderr, batchStdinReader)
 		if err != nil {
 			_ = batchStdoutWriter.CloseWithError(ConcatenateError(err, (&stderr).String()))
 			_ = batchStdinReader.CloseWithError(ConcatenateError(err, (&stderr).String()))
@@ -292,3 +304,10 @@ func ParseTreeLine(rd *bufio.Reader, modeBuf, fnameBuf, shaBuf []byte) (mode, fn
 	sha = shaBuf
 	return
 }
+
+var callerPrefix string
+
+func init() {
+	_, filename, _, _ := runtime.Caller(0)
+	callerPrefix = strings.TrimSuffix(filename, "modules/git/batch_reader.go")
+}

routers/api/v1/repo/file.go

@@ -119,13 +119,15 @@ func GetArchive(ctx *context.APIContext) {
 	//     "$ref": "#/responses/notFound"
 
 	repoPath := models.RepoPath(ctx.Params(":username"), ctx.Params(":reponame"))
-	gitRepo, err := git.OpenRepository(repoPath)
-	if err != nil {
-		ctx.Error(http.StatusInternalServerError, "OpenRepository", err)
-		return
+	if ctx.Repo.GitRepo == nil {
+		gitRepo, err := git.OpenRepository(repoPath)
+		if err != nil {
+			ctx.Error(http.StatusInternalServerError, "OpenRepository", err)
+			return
+		}
+		ctx.Repo.GitRepo = gitRepo
+		defer gitRepo.Close()
 	}
-	ctx.Repo.GitRepo = gitRepo
-	defer gitRepo.Close()
 
 	repo.Download(ctx.Context)
 }