restic/node_linux.go

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package restic
import (
"fmt"
"os"
"os/user"
"strconv"
"syscall"
"time"
)
func (node *Node) fill_extra(path string, fi os.FileInfo) (err error) {
stat, ok := fi.Sys().(*syscall.Stat_t)
if !ok {
return
}
node.ChangeTime = time.Unix(stat.Ctim.Unix())
node.AccessTime = time.Unix(stat.Atim.Unix())
node.UID = stat.Uid
node.GID = stat.Gid
// TODO: cache uid lookup
if u, nil := user.LookupId(strconv.Itoa(int(stat.Uid))); err == nil {
node.User = u.Username
}
// TODO: implement getgrnam() or use https://github.com/kless/osutil
// if g, nil := user.LookupId(strconv.Itoa(int(stat.Uid))); err == nil {
// node.User = u.Username
// }
node.Inode = stat.Ino
switch node.Type {
case "file":
node.Size = uint64(stat.Size)
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node.Links = uint64(stat.Nlink)
case "dir":
// nothing to do
case "symlink":
node.LinkTarget, err = os.Readlink(path)
case "dev":
node.Device = stat.Rdev
case "chardev":
node.Device = stat.Rdev
case "fifo":
// nothing to do
case "socket":
// nothing to do
default:
panic(fmt.Sprintf("invalid node type %q", node.Type))
}
return err
}
func (node *Node) createDevAt(path string) error {
return syscall.Mknod(path, syscall.S_IFBLK|0600, int(node.Device))
}
func (node *Node) createCharDevAt(path string) error {
return syscall.Mknod(path, syscall.S_IFCHR|0600, int(node.Device))
}
func (node *Node) createFifoAt(path string) error {
return syscall.Mkfifo(path, 0600)
}