dd931d9b48
Reviewed-on: https://go-review.googlesource.com/136435 gotools/: * Makefile.am (mostlyclean-local): Run chmod on check-go-dir to make sure it is writable. (check-go-tools): Likewise. (check-vet): Copy internal/objabi to check-vet-dir. * Makefile.in: Rebuild. From-SVN: r264546
53 lines
1.3 KiB
Go
53 lines
1.3 KiB
Go
// Copyright 2009 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
// +build aix darwin,386 darwin,amd64 dragonfly freebsd js,wasm linux,!android nacl netbsd openbsd solaris
|
|
|
|
// Parse "zoneinfo" time zone file.
|
|
// This is a fairly standard file format used on OS X, Linux, BSD, Sun, and others.
|
|
// See tzfile(5), https://en.wikipedia.org/wiki/Zoneinfo,
|
|
// and ftp://munnari.oz.au/pub/oldtz/
|
|
|
|
package time
|
|
|
|
import (
|
|
"runtime"
|
|
"syscall"
|
|
)
|
|
|
|
// Many systems use /usr/share/zoneinfo, Solaris 2 has
|
|
// /usr/share/lib/zoneinfo, IRIX 6 has /usr/lib/locale/TZ.
|
|
var zoneSources = []string{
|
|
"/usr/share/zoneinfo/",
|
|
"/usr/share/lib/zoneinfo/",
|
|
"/usr/lib/locale/TZ/",
|
|
runtime.GOROOT() + "/lib/time/zoneinfo.zip",
|
|
}
|
|
|
|
func initLocal() {
|
|
// consult $TZ to find the time zone to use.
|
|
// no $TZ means use the system default /etc/localtime.
|
|
// $TZ="" means use UTC.
|
|
// $TZ="foo" means use /usr/share/zoneinfo/foo.
|
|
|
|
tz, ok := syscall.Getenv("TZ")
|
|
switch {
|
|
case !ok:
|
|
z, err := loadLocation("localtime", []string{"/etc/"})
|
|
if err == nil {
|
|
localLoc = *z
|
|
localLoc.name = "Local"
|
|
return
|
|
}
|
|
case tz != "" && tz != "UTC":
|
|
if z, err := loadLocation(tz, zoneSources); err == nil {
|
|
localLoc = *z
|
|
return
|
|
}
|
|
}
|
|
|
|
// Fall back to UTC.
|
|
localLoc.name = "UTC"
|
|
}
|