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_os.go

@@ -0,0 +1,91 @@
+// 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"
+	"io/ioutil"
+	"os"
+	"sort"
+	"strings"
+)
+
+type osFS struct {
+	root string
+}
+
+func newOsFS(root string) FileSystem {
+	// locale zip file
+	if fi, err := os.Stat(root); err == nil && !fi.IsDir() {
+		if strings.HasSuffix(strings.ToLower(root), ".zip") {
+			if x, err := ioutil.ReadFile(root); err == nil {
+				if r, err := zip.NewReader(bytes.NewReader(x), int64(len(x))); err == nil {
+					return ZipFS(r, root)
+				}
+			}
+		}
+		if strings.HasSuffix(strings.ToLower(root), ".json") {
+			if x, err := ioutil.ReadFile(root); err == nil {
+				if fs, err := newJson(x, root); err == nil {
+					return fs
+				}
+			}
+		}
+	}
+
+	// locale dir
+	return &osFS{root: root}
+}
+
+func (p *osFS) LocaleList() []string {
+	list, err := ioutil.ReadDir(p.root)
+	if err != nil {
+		return nil
+	}
+	ssMap := make(map[string]bool)
+	for _, dir := range list {
+		if dir.IsDir() {
+			ssMap[dir.Name()] = true
+		}
+	}
+	var locales = make([]string, 0, len(ssMap))
+	for s := range ssMap {
+		locales = append(locales, s)
+	}
+	sort.Strings(locales)
+	return locales
+}
+
+func (p *osFS) LoadMessagesFile(domain, locale, ext string) ([]byte, error) {
+	trName := p.makeMessagesFileName(domain, locale, ext)
+	rcData, err := ioutil.ReadFile(trName)
+	if err != nil {
+		return nil, err
+	}
+	return rcData, nil
+}
+
+func (p *osFS) LoadResourceFile(domain, locale, name string) ([]byte, error) {
+	rcName := p.makeResourceFileName(domain, locale, name)
+	rcData, err := ioutil.ReadFile(rcName)
+	if err != nil {
+		return nil, err
+	}
+	return rcData, nil
+}
+
+func (p *osFS) String() string {
+	return "gettext.localfs(" + p.root + ")"
+}
+
+func (p *osFS) makeMessagesFileName(domain, lang, ext string) string {
+	return fmt.Sprintf("%s/%s/LC_MESSAGES/%s%s", p.root, lang, domain, ext)
+}
+
+func (p *osFS) makeResourceFileName(domain, lang, name string) string {
+	return fmt.Sprintf("%s/%s/LC_RESOURCE/%s/%s", p.root, lang, domain, name)
+}