51 lines
1.4 KiB
Go
51 lines
1.4 KiB
Go
// +build !windows
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package archive
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import (
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"os"
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"syscall"
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"github.com/containers/storage/pkg/idtools"
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"github.com/containers/storage/pkg/system"
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"golang.org/x/sys/unix"
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)
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func statDifferent(oldStat *system.StatT, oldInfo *FileInfo, newStat *system.StatT, newInfo *FileInfo) bool {
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// Don't look at size for dirs, its not a good measure of change
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oldUID, oldGID := oldStat.UID(), oldStat.GID()
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uid, gid := newStat.UID(), newStat.GID()
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if cuid, cgid, err := newInfo.idMappings.ToContainer(idtools.IDPair{UID: int(uid), GID: int(gid)}); err == nil {
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uid = uint32(cuid)
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gid = uint32(cgid)
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if oldInfo != nil {
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if oldcuid, oldcgid, err := oldInfo.idMappings.ToContainer(idtools.IDPair{UID: int(oldUID), GID: int(oldGID)}); err == nil {
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oldUID = uint32(oldcuid)
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oldGID = uint32(oldcgid)
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}
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}
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}
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ownerChanged := uid != oldUID || gid != oldGID
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if oldStat.Mode() != newStat.Mode() ||
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ownerChanged ||
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oldStat.Rdev() != newStat.Rdev() ||
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// Don't look at size for dirs, its not a good measure of change
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(oldStat.Mode()&unix.S_IFDIR != unix.S_IFDIR &&
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(!sameFsTimeSpec(oldStat.Mtim(), newStat.Mtim()) || (oldStat.Size() != newStat.Size()))) {
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return true
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}
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return false
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}
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func (info *FileInfo) isDir() bool {
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return info.parent == nil || info.stat.Mode()&unix.S_IFDIR != 0
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}
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func getIno(fi os.FileInfo) uint64 {
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return fi.Sys().(*syscall.Stat_t).Ino
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}
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func hasHardlinks(fi os.FileInfo) bool {
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return fi.Sys().(*syscall.Stat_t).Nlink > 1
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}
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