test info: improve cleanup of temp files - fixes #7209

Co-authored-by: Kyle Reynolds <kyle.reynolds@bridgerphotonics.com>

cmd/test/info/info.go

@@ -27,12 +27,14 @@ import (
 	"github.com/rclone/rclone/fs/config/flags"
 	"github.com/rclone/rclone/fs/hash"
 	"github.com/rclone/rclone/fs/object"
+	"github.com/rclone/rclone/fs/operations"
 	"github.com/rclone/rclone/lib/random"
 	"github.com/spf13/cobra"
 )
 
 var (
 	writeJSON          string
+	keepTestFiles      bool
 	checkNormalization bool
 	checkControl       bool
 	checkLength        bool
@@ -56,6 +58,7 @@ func init() {
 	flags.BoolVarP(cmdFlags, &checkStreaming, "check-streaming", "", false, "Check uploads with indeterminate file size", "")
 	flags.BoolVarP(cmdFlags, &checkBase32768, "check-base32768", "", false, "Check can store all possible base32768 characters", "")
 	flags.BoolVarP(cmdFlags, &all, "all", "", false, "Run all tests", "")
+	flags.BoolVarP(cmdFlags, &keepTestFiles, "keep-test-files", "", false, "Keep test files after execution", "")
 }
 
 var commandDefinition = &cobra.Command{
@@ -84,7 +87,15 @@ a bit of go code for each one.
 			checkBase32768 = true
 		}
 		for i := range args {
-			f := cmd.NewFsDir(args[i : i+1])
+			tempDirName := "rclone-test-info-" + random.String(8)
+			tempDirPath := path.Join(args[i], tempDirName)
+			f := cmd.NewFsDir([]string{tempDirPath})
+			fs.Infof(f, "Created temporary directory for test files: %s", tempDirPath)
+			err := f.Mkdir(context.Background(), "")
+			if err != nil {
+				log.Fatalf("couldn't create temporary directory: %v", err)
+			}
+
 			cmd.Run(false, false, command, func() error {
 				return readInfo(context.Background(), f)
 			})
@@ -471,10 +482,18 @@ func (r *results) checkStreaming() {
 }
 
 func readInfo(ctx context.Context, f fs.Fs) error {
-	err := f.Mkdir(ctx, "")
+	// Ensure cleanup unless --keep-test-files is specified
-	if err != nil {
+	if !keepTestFiles {
-		return fmt.Errorf("couldn't mkdir: %w", err)
+		defer func() {
+			err := operations.Purge(ctx, f, "")
+			if err != nil {
+				fs.Errorf(f, "Failed to purge temporary directory: %v", err)
+			} else {
+				fs.Infof(f, "Removed temporary directory for test files: %s", f.Root())
+			}
+		}()
 	}
+
 	r := newResults(ctx, f)
 	if checkControl {
 		r.checkControls()