/
zoneinfo.go
53 lines (48 loc) · 1 KB
/
zoneinfo.go
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package lists
import (
"os"
"path/filepath"
"sort"
"strings"
"sync"
)
var (
zoneDirs = []string{
// Update path according to your OS
"/usr/share/zoneinfo/",
"/usr/share/lib/zoneinfo/",
"/usr/lib/locale/TZ/",
}
zoneInfoOnce sync.Once
zoneNames []string
)
func ListZoneInfo() []string {
zoneInfoOnce.Do(func() {
zoneNames = make([]string, 0)
for _, zoneDir := range zoneDirs {
zoneNames = append(zoneNames, FindTimeZoneFiles(zoneDir)...)
}
sort.Strings(zoneNames)
})
return zoneNames
}
func FindTimeZoneFiles(zoneDir string) []string {
dArr := make([]string, 0)
dArr = append(dArr, "")
arr := make([]string, 0)
for i := 0; i < len(dArr); i++ {
dir := dArr[i]
files, _ := os.ReadDir(filepath.Join(zoneDir, dir))
for _, f := range files {
if f.Name() != strings.ToUpper(f.Name()[:1])+f.Name()[1:] {
continue
}
if f.IsDir() {
dArr = append(dArr, filepath.Join(dir, f.Name()))
} else {
arr = append(arr, filepath.Join(dir, f.Name()))
}
}
}
return arr
}