forked from TrueCloudLab/restic
8f20d5dcd5
Previously, nodeRestoreTimestamps would do something like
if node.Type == restic.NodeTypeSymlink {
return nodeRestoreSymlinkTimestamps(...)
}
return syscall.UtimesNano(...)
where nodeRestoreSymlinkTimestamps was either a no-op or a
reimplementation of syscall.UtimesNano that handles symlinks, with some
repeated converting between timestamp types. The Linux implementation
was a bit clumsy, requiring three syscalls to set the timestamps.
In this new setup, there is a function utimesNano that has three
implementations:
* on Linux, it's a modified syscall.UtimesNano that uses
AT_SYMLINK_NOFOLLOW and AT_FDCWD so it can handle any type in a single
call;
* on other Unix platforms, it just calls the syscall function after
skipping symlinks;
* on Windows, it's the modified UtimesNano that was previously called
nodeRestoreSymlinkTimestamps, except with different arguments.
15 lines
424 B
Go
15 lines
424 B
Go
package fs
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import (
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"github.com/restic/restic/internal/restic"
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"golang.org/x/sys/unix"
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)
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// utimesNano is like syscall.UtimesNano, except that it does not follow symlinks.
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func utimesNano(path string, atime, mtime int64, _ restic.NodeType) error {
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times := []unix.Timespec{
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unix.NsecToTimespec(atime),
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unix.NsecToTimespec(mtime),
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}
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return unix.UtimesNanoAt(unix.AT_FDCWD, path, times, unix.AT_SYMLINK_NOFOLLOW)
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}
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