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//go:build solaris || darwin || freebsd
// +build solaris darwin freebsd
package fs
import (
"os"
"syscall"
"github.com/pkg/errors"
"golang.org/x/sys/unix"
)
func getUIDGID(fi os.FileInfo) (uid, gid int) {
st := fi.Sys().(*syscall.Stat_t)
return int(st.Uid), int(st.Gid)
}
func (c *copier) copyFileInfo(fi os.FileInfo, src, name string) error {
chown := c.chown
uid, gid := getUIDGID(fi)
old := &User{UID: uid, GID: gid}
if chown == nil {
chown = func(u *User) (*User, error) {
return u, nil
}
}
if err := Chown(name, old, chown); err != nil {
return errors.Wrapf(err, "failed to chown %s", name)
}
m := fi.Mode()
if c.mode != nil {
m = os.FileMode(*c.mode).Perm()
if *c.mode&syscall.S_ISGID != 0 {
m |= os.ModeSetgid
}
if *c.mode&syscall.S_ISUID != 0 {
m |= os.ModeSetuid
}
if *c.mode&syscall.S_ISVTX != 0 {
m |= os.ModeSticky
}
}
if (fi.Mode() & os.ModeSymlink) != os.ModeSymlink {
if err := os.Chmod(name, m); err != nil {
return errors.Wrapf(err, "failed to chmod %s", name)
}
}
if err := c.copyFileTimestamp(fi, name); err != nil {
return err
}
return nil
}
func (c *copier) copyFileTimestamp(fi os.FileInfo, name string) error {
if c.utime != nil {
return Utimes(name, c.utime)
}
st := fi.Sys().(*syscall.Stat_t)
timespec := []unix.Timespec{unix.Timespec(StatAtime(st)), unix.Timespec(StatMtime(st))}
if err := unix.UtimesNanoAt(unix.AT_FDCWD, name, timespec, unix.AT_SYMLINK_NOFOLLOW); err != nil {
return errors.Wrapf(err, "failed to utime %s", name)
}
return nil
}
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