| // +build !windows |
| |
| package archive // import "github.com/docker/docker/pkg/archive" |
| |
| import ( |
| "os" |
| "syscall" |
| |
| "github.com/docker/docker/pkg/system" |
| "golang.org/x/sys/unix" |
| ) |
| |
| func statDifferent(oldStat *system.StatT, newStat *system.StatT) bool { |
| // Don't look at size for dirs, its not a good measure of change |
| if oldStat.Mode() != newStat.Mode() || |
| oldStat.UID() != newStat.UID() || |
| oldStat.GID() != newStat.GID() || |
| oldStat.Rdev() != newStat.Rdev() || |
| // Don't look at size or modification time for dirs, its not a good |
| // measure of change. See https://github.com/moby/moby/issues/9874 |
| // for a description of the issue with modification time, and |
| // https://github.com/moby/moby/pull/11422 for the change. |
| // (Note that in the Windows implementation of this function, |
| // modification time IS taken as a change). See |
| // https://github.com/moby/moby/pull/37982 for more information. |
| (oldStat.Mode()&unix.S_IFDIR != unix.S_IFDIR && |
| (!sameFsTimeSpec(oldStat.Mtim(), newStat.Mtim()) || (oldStat.Size() != newStat.Size()))) { |
| return true |
| } |
| return false |
| } |
| |
| func (info *FileInfo) isDir() bool { |
| return info.parent == nil || info.stat.Mode()&unix.S_IFDIR != 0 |
| } |
| |
| func getIno(fi os.FileInfo) uint64 { |
| return fi.Sys().(*syscall.Stat_t).Ino |
| } |
| |
| func hasHardlinks(fi os.FileInfo) bool { |
| return fi.Sys().(*syscall.Stat_t).Nlink > 1 |
| } |