Hello! The new version of tar has become non-deterministic. It looks like now it stores its own creation time or something internally. (?)
# 1.27 > for f in $(seq 10); do tar -cp -T filelist -f - | md5sum; done ecaec8575b3c4609b99475c4378bdf7a - ecaec8575b3c4609b99475c4378bdf7a - ecaec8575b3c4609b99475c4378bdf7a - ecaec8575b3c4609b99475c4378bdf7a - ecaec8575b3c4609b99475c4378bdf7a - ecaec8575b3c4609b99475c4378bdf7a - ecaec8575b3c4609b99475c4378bdf7a - ba5400215dcec292bf807025981c8856 - <-- change ba5400215dcec292bf807025981c8856 - ba5400215dcec292bf807025981c8856 - # 1.26 > for f in $(seq 10); do tar -cp -T filelist -f - | md5sum; done 85e65f5b675d42852c2689bfa2959467 - 85e65f5b675d42852c2689bfa2959467 - 85e65f5b675d42852c2689bfa2959467 - 85e65f5b675d42852c2689bfa2959467 - 85e65f5b675d42852c2689bfa2959467 - 85e65f5b675d42852c2689bfa2959467 - 85e65f5b675d42852c2689bfa2959467 - 85e65f5b675d42852c2689bfa2959467 - 85e65f5b675d42852c2689bfa2959467 - 85e65f5b675d42852c2689bfa2959467 - This is a problem for me because I used to compare SHA hashes of tar files to detect change. Now my scripts constantly think content has changed. Is this a bug? If not, is there a way to disable or manually provide this internal timestamp? Thanks, David
