Merge pull request #510 from MUzairS15/git/walker

fix race condition; add waitgroups

utils/walker/git.go

@@ -9,6 +9,7 @@ import (
 	"path/filepath"
 	"strconv"
 	"strings"
+	"sync"
 	"time"
 
 	"github.com/go-git/go-git/v5"
@@ -136,7 +137,7 @@ func (g *Git) RegisterDirInterceptor(i DirInterceptor) *Git {
 }
 func clonewalk(g *Git) error {
 	if g.maxFileSizeInBytes == 0 {
-		return ErrInvalidSizeFile(errors.New("Max file size passed as 0. Will not read any file"))
+		return ErrInvalidSizeFile(errors.New("max file size passed as 0. Will not read any file"))
 	}
 
 	path := filepath.Join(os.TempDir(), g.repo, strconv.FormatInt(time.Now().UTC().UnixNano(), 10))
@@ -214,11 +215,14 @@ func clonewalk(g *Git) error {
 		files = append(files, file)
 	}
 
+	var wg sync.WaitGroup
 	for _, f := range files {
 		fPath := filepath.Join(path, g.root, f.Name())
 		if f.IsDir() && g.dirInterceptor != nil {
 			name := f.Name()
+			wg.Add(1)
 			go func(name string, path string, filename string) {
+				defer wg.Done()
 				err := g.dirInterceptor(Directory{
 					Name: filename,
 					Path: fPath,
@@ -237,6 +241,7 @@ func clonewalk(g *Git) error {
 			fmt.Println(err.Error())
 		}
 	}
+	wg.Wait()
 
 	return nil
 }