Merge pull request #3589 from tonistiigi/truncate-time

archive: truncate modification time
containerd · Aug 28, 2019 · 985bba6 · 985bba6
2 parents a1579ee + 372472b
commit 985bba6
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/archive/tar.go b/archive/tar.go
@@ -504,6 +504,12 @@ func (cw *changeWriter) HandleChange(k fs.ChangeKind, p string, f os.FileInfo, e
 
 		hdr.Mode = int64(chmodTarEntry(os.FileMode(hdr.Mode)))
 
+		// truncate timestamp for compatibility. without PAX stdlib rounds timestamps instead
+		hdr.Format = tar.FormatPAX
+		hdr.ModTime = hdr.ModTime.Truncate(time.Second)
+		hdr.AccessTime = time.Time{}
+		hdr.ChangeTime = time.Time{}
+
 		name := p
 		if strings.HasPrefix(name, string(filepath.Separator)) {
 			name, err = filepath.Rel(string(filepath.Separator), name)