a40e06ee33
Amazingly, timegm(gmtime(0)) is only 0 before 2020 because perl's timegm deviates from GNU timegm(3) in how it handles years. man Time::Local says Whenever possible, use an absolute four digit year instead. with a detailed explanation about ambiguity of 2-digit years above that. Even though this ambiguity is error-prone with >50% of users getting it wrong, it has been like this for 20+ years, so we just use 4-digit years everywhere to be on the safe side. We add some extra logic to cvsimport because it allows 2-digit year input and interpreting an 18 as 1918 can be avoided easily and safely. Signed-off-by: Bernhard M. Wiedemann <bwiedemann@suse.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
These are original scripted implementations, kept primarily for their reference value to any aspiring plumbing users who want to learn how pieces can be fit together.