vendor: update all dependencies

vendor/github.com/pkg/sftp/request-example.go

@@ -10,6 +10,8 @@ import (
 	"io"
 	"os"
 	"path/filepath"
+	"sort"
+	"strconv"
 	"sync"
 	"time"
 )
@@ -104,13 +106,35 @@ func (fs *root) Fileinfo(r Request) ([]os.FileInfo, error) {
 	defer fs.filesLock.Unlock()
 	switch r.Method {
 	case "List":
-		list := []os.FileInfo{}
-		for fn, fi := range fs.files {
-			if filepath.Dir(fn) == r.Filepath {
-				list = append(list, fi)
+		var err error
+		batch_size := 10
+		current_offset := 0
+		if token := r.LsNext(); token != "" {
+			current_offset, err = strconv.Atoi(token)
+			if err != nil {
+				return nil, os.ErrInvalid
 			}
 		}
-		return list, nil
+		ordered_names := []string{}
+		for fn, _ := range fs.files {
+			if filepath.Dir(fn) == r.Filepath {
+				ordered_names = append(ordered_names, fn)
+			}
+		}
+		sort.Sort(sort.StringSlice(ordered_names))
+		list := make([]os.FileInfo, len(ordered_names))
+		for i, fn := range ordered_names {
+			list[i] = fs.files[fn]
+		}
+		if len(list) < current_offset {
+			return nil, io.EOF
+		}
+		new_offset := current_offset + batch_size
+		if new_offset > len(list) {
+			new_offset = len(list)
+		}
+		r.LsSave(strconv.Itoa(new_offset))
+		return list[current_offset:new_offset], nil
 	case "Stat":
 		file, err := fs.fetch(r.Filepath)
 		if err != nil {