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// 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)
}
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