vendor: add github.com/goftp/server

vendor/github.com/goftp/server/listformatter.go

@@ -0,0 +1,49 @@
+// Copyright 2018 The goftp Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package server
+
+import (
+	"bytes"
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+type listFormatter []FileInfo
+
+// Short returns a string that lists the collection of files by name only,
+// one per line
+func (formatter listFormatter) Short() []byte {
+	var buf bytes.Buffer
+	for _, file := range formatter {
+		fmt.Fprintf(&buf, "%s\r\n", file.Name())
+	}
+	return buf.Bytes()
+}
+
+// Detailed returns a string that lists the collection of files with extra
+// detail, one per line
+func (formatter listFormatter) Detailed() []byte {
+	var buf bytes.Buffer
+	for _, file := range formatter {
+		fmt.Fprintf(&buf, file.Mode().String())
+		fmt.Fprintf(&buf, " 1 %s %s ", file.Owner(), file.Group())
+		fmt.Fprintf(&buf, lpad(strconv.FormatInt(file.Size(), 10), 12))
+		fmt.Fprintf(&buf, file.ModTime().Format(" Jan _2 15:04 "))
+		fmt.Fprintf(&buf, "%s\r\n", file.Name())
+	}
+	return buf.Bytes()
+}
+
+func lpad(input string, length int) (result string) {
+	if len(input) < length {
+		result = strings.Repeat(" ", length-len(input)) + input
+	} else if len(input) == length {
+		result = input
+	} else {
+		result = input[0:length]
+	}
+	return
+}