forked from toolshed/abra
44 lines
1.3 KiB
Go
44 lines
1.3 KiB
Go
//go:build !windows
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package archive
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import (
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"io/fs"
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"os"
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"syscall"
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)
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func statDifferent(oldStat fs.FileInfo, newStat fs.FileInfo) bool {
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oldSys := oldStat.Sys().(*syscall.Stat_t)
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newSys := newStat.Sys().(*syscall.Stat_t)
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// Don't look at size for dirs, its not a good measure of change
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if oldStat.Mode() != newStat.Mode() ||
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oldSys.Uid != newSys.Uid ||
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oldSys.Gid != newSys.Gid ||
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oldSys.Rdev != newSys.Rdev ||
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// Don't look at size or modification time for dirs, its not a good
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// measure of change. See https://github.com/moby/moby/issues/9874
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// for a description of the issue with modification time, and
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// https://github.com/moby/moby/pull/11422 for the change.
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// (Note that in the Windows implementation of this function,
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// modification time IS taken as a change). See
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// https://github.com/moby/moby/pull/37982 for more information.
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(!oldStat.Mode().IsDir() &&
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(!sameFsTime(oldStat.ModTime(), newStat.ModTime()) || (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().IsDir()
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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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