Switch to v1.0.2 of github.com/chai2010/gettext-go

Signed-off-by: Davanum Srinivas <davanum@gmail.com>

vendor/github.com/chai2010/gettext-go/fs.go

@@ -0,0 +1,84 @@
+// Copyright 2013 ChaiShushan <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package gettext
+
+import (
+	"archive/zip"
+	"bytes"
+	"fmt"
+)
+
+type FileSystem interface {
+	LocaleList() []string
+	LoadMessagesFile(domain, lang, ext string) ([]byte, error)
+	LoadResourceFile(domain, lang, name string) ([]byte, error)
+	String() string
+}
+
+func NewFS(name string, x interface{}) FileSystem {
+	if x == nil {
+		if name != "" {
+			return OS(name)
+		}
+		return NilFS(name)
+	}
+
+	switch x := x.(type) {
+	case []byte:
+		if len(x) == 0 {
+			return OS(name)
+		}
+		if r, err := zip.NewReader(bytes.NewReader(x), int64(len(x))); err == nil {
+			return ZipFS(r, name)
+		}
+		if fs, err := newJson(x, name); err == nil {
+			return fs
+		}
+	case string:
+		if len(x) == 0 {
+			return OS(name)
+		}
+		if r, err := zip.NewReader(bytes.NewReader([]byte(x)), int64(len(x))); err == nil {
+			return ZipFS(r, name)
+		}
+		if fs, err := newJson([]byte(x), name); err == nil {
+			return fs
+		}
+	case FileSystem:
+		return x
+	}
+
+	return NilFS(name)
+}
+
+func OS(root string) FileSystem {
+	return newOsFS(root)
+}
+
+func ZipFS(r *zip.Reader, name string) FileSystem {
+	return newZipFS(r, name)
+}
+
+func NilFS(name string) FileSystem {
+	return &nilFS{name}
+}
+
+type nilFS struct {
+	name string
+}
+
+func (p *nilFS) LocaleList() []string {
+	return nil
+}
+
+func (p *nilFS) LoadMessagesFile(domain, lang, ext string) ([]byte, error) {
+	return nil, fmt.Errorf("not found")
+}
+func (p *nilFS) LoadResourceFile(domain, lang, name string) ([]byte, error) {
+	return nil, fmt.Errorf("not found")
+}
+func (p *nilFS) String() string {
+	return "gettext.nilfs(" + p.name + ")"
+}