# bugreport: git does not like subseconds 4 messages from 2008-11-13 to 2008-11-13. Participants: Jan Engelhardt, Linus Torvalds, Junio C Hamano. Thread: https://gitlist.dev/t/16306 ## Jan Engelhardt, 2008-11-13 16:26 Subject: bugreport: git does not like subseconds Message-ID: URL: https://gitlist.dev/e/alpine.LNX.1.10.0811131722360.13330%40fbirervta.pbzchgretzou.qr ``` Git does not like subseconds in $GIT_{AUTHOR,COMMITTER}_DATE, and somehow does time travel instead. Perhaps this is a Glibc limitation? Running openSUSE 11's glibc-2.8(which is actually a 2.7 snapshot I think: glibc-2.8-2008042513.tar.bz2). $ git init Initialized empty Git repository in /dev/shm/f/.git/ $ echo tomato >banana.c $ git add banana.c $ GIT_AUTHOR_DATE="2008-11-11 19:36:33.983771268 +0100" git ci -m 'foo' Created initial commit e65a6b0: foo 1 files changed, 1 insertions(+), 0 deletions(-) create mode 100644 banana.c $ git log commit e65a6b06c2ff3ef458cb16e7ee6f17ef39757538 Author: Jan Engelhardt Date: Mon Mar 5 06:47:48 2001 +0100 foo ``` ## Linus Torvalds, 2008-11-13 16:45 Subject: Re: bugreport: git does not like subseconds Message-ID: URL: https://gitlist.dev/e/alpine.LFD.2.00.0811130842550.3468%40nehalem.linux-foundation.org In-Reply-To: ``` On Thu, 13 Nov 2008, Jan Engelhardt wrote: > > > Git does not like subseconds in $GIT_{AUTHOR,COMMITTER}_DATE, > and somehow does time travel instead. Perhaps this is a Glibc > limitation? Running openSUSE 11's glibc-2.8(which is actually > a 2.7 snapshot I think: glibc-2.8-2008042513.tar.bz2). This should have been fixed by 9f2b6d2936a7c4bb3155de8efec7b10869ca935e ("date/time: do not get confused by fractional seconds"). But maybe that hasn't made it into any release yet? It's in master, but maybe it never made it into stable? Junio? Linus ``` ## Jan Engelhardt, 2008-11-13 16:57 Subject: Re: bugreport: git does not like subseconds Message-ID: URL: https://gitlist.dev/e/alpine.LNX.1.10.0811131752450.16134%40fbirervta.pbzchgretzou.qr In-Reply-To: ``` On Thursday 2008-11-13 17:45, Linus Torvalds wrote: >On Thu, 13 Nov 2008, Jan Engelhardt wrote: >> >> Git does not like subseconds in $GIT_{AUTHOR,COMMITTER}_DATE, >> and somehow does time travel instead. Perhaps this is a Glibc >> limitation? Running openSUSE 11's glibc-2.8(which is actually >> a 2.7 snapshot I think: glibc-2.8-2008042513.tar.bz2). > >This should have been fixed by 9f2b6d2936a7c4bb3155de8efec7b10869ca935e >("date/time: do not get confused by fractional seconds"). > >But maybe that hasn't made it into any release yet? It's in master, but >maybe it never made it into stable? Junio? Seems so: $ git describe 9f2b6d2936a7c4bb3155de8efec7b10869ca935e v1.6.0-3-g9f2b6d2 $ git merge-base 9f2b6d2936a7c4bb3155de8efec7b10869ca935e v1.6.0.3 result: dba9194a49452b5f093b96872e19c91b50e526aa $ git describe dba9194a49452b5f093b96872e19c91b50e526aa v1.6.0-1-gdba9194 Which means it's not in; -forest also verifies it: [v1.6.0.x goes here] ^ │ ├ │ │ mailinfo: re-fix MIME multipart boundary parsing │ │ ┌─│─[fix]──date/time: do not get confused by fractional seconds │ │ ├ │ Start 1.6.1 cycle ├─≡───┘ │ ├ │ │ Start 1.6.0.X maintenance series ├─│─────│─[v1.6.0]──GIT 1.6.0 ``` ## Junio C Hamano, 2008-11-13 17:09 Subject: Re: bugreport: git does not like subseconds Message-ID: <7v1vxfh7sh.fsf@gitster.siamese.dyndns.org> URL: https://gitlist.dev/e/7v1vxfh7sh.fsf%40gitster.siamese.dyndns.org In-Reply-To: ``` Linus Torvalds writes: > On Thu, 13 Nov 2008, Jan Engelhardt wrote: >> >> >> Git does not like subseconds in $GIT_{AUTHOR,COMMITTER}_DATE, >> and somehow does time travel instead. Perhaps this is a Glibc >> limitation? Running openSUSE 11's glibc-2.8(which is actually >> a 2.7 snapshot I think: glibc-2.8-2008042513.tar.bz2). > > This should have been fixed by 9f2b6d2936a7c4bb3155de8efec7b10869ca935e > ("date/time: do not get confused by fractional seconds"). > > But maybe that hasn't made it into any release yet? It's in master, but > maybe it never made it into stable? Junio? No it didn't. Actually I didn't even think of that as a bug, in the sense that git never accepted fractional seconds and feeding such to git was a user error from day one; iow, 9f2b6d2 (date/time: do not get confused by fractional seconds, 2008-08-16) was an idiotproofing ;-) But I'd agree perhaps we should cherry pick that one. ```