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restic/internal/restic/node_windows.go
Alexander Neumann 355db0bc29 windows: Use LastWriteTime for ctime and mtime
Windows does not have a concept of a `change time` in the sense as Unix
has it: the field `CreationTime` of the `Win32FileAttributeData` struct
is not updated when attributes or content is changed. So from now on
we're using the `LastWriteTime` as the `change time` on Windows.
2019-05-05 14:02:11 +02:00

82 lines
2.2 KiB
Go

package restic
import (
"syscall"
"github.com/restic/restic/internal/errors"
)
// mknod() creates a filesystem node (file, device
// special file, or named pipe) named pathname, with attributes
// specified by mode and dev.
var mknod = func(path string, mode uint32, dev int) (err error) {
return errors.New("device nodes cannot be created on windows")
}
// Windows doesn't need lchown
var lchown = func(path string, uid int, gid int) (err error) {
return nil
}
func (node Node) restoreSymlinkTimestamps(path string, utimes [2]syscall.Timespec) error {
return nil
}
func (node Node) device() int {
return int(node.Device)
}
// Getxattr retrieves extended attribute data associated with path.
func Getxattr(path, name string) ([]byte, error) {
return nil, nil
}
// Listxattr retrieves a list of names of extended attributes associated with the
// given path in the file system.
func Listxattr(path string) ([]string, error) {
return nil, nil
}
// Setxattr associates name and data together as an attribute of path.
func Setxattr(path, name string, data []byte) error {
return nil
}
type statWin syscall.Win32FileAttributeData
//ToStatT call the Windows system call Win32FileAttributeData.
func toStatT(i interface{}) (statT, bool) {
if i == nil {
return nil, false
}
s, ok := i.(*syscall.Win32FileAttributeData)
if ok && s != nil {
return statWin(*s), true
}
return nil, false
}
func (s statWin) dev() uint64 { return 0 }
func (s statWin) ino() uint64 { return 0 }
func (s statWin) nlink() uint64 { return 0 }
func (s statWin) uid() uint32 { return 0 }
func (s statWin) gid() uint32 { return 0 }
func (s statWin) rdev() uint64 { return 0 }
func (s statWin) size() int64 {
return int64(s.FileSizeLow) | (int64(s.FileSizeHigh) << 32)
}
func (s statWin) atim() syscall.Timespec {
return syscall.NsecToTimespec(s.LastAccessTime.Nanoseconds())
}
func (s statWin) mtim() syscall.Timespec {
return syscall.NsecToTimespec(s.LastWriteTime.Nanoseconds())
}
func (s statWin) ctim() syscall.Timespec {
// Windows does not have the concept of a "change time" in the sense Unix uses it, so we're using the LastWriteTime here.
return syscall.NsecToTimespec(s.LastWriteTime.Nanoseconds())
}