sort descendants by path len

memmap.go

@@ -15,15 +15,14 @@ package afero
 
 import (
 	"fmt"
+	"github.com/spf13/afero/mem"
 	"log"
 	"os"
 	"path/filepath"
 	"sort"
 	"strings"
 	"sync"
 	"time"
-
-	"github.com/spf13/afero/mem"
 )
 
 const chmodBits = os.ModePerm | os.ModeSetuid | os.ModeSetgid | os.ModeSticky // Only a subset of bits are allowed to be changed. Documented under os.Chmod()
@@ -98,7 +97,9 @@ func (m *MemMapFs) findDescendants(name string) []*mem.FileData {
 	}
 
 	sort.Slice(descendants, func(i, j int) bool {
-		return descendants[i].Name() < descendants[j].Name()
+		cur := len(strings.Split(descendants[i].Name(), FilePathSeparator))
+		next := len(strings.Split(descendants[j].Name(), FilePathSeparator))
+		return cur < next
 	})
 
 	return descendants