# finding if a commit is needed 3 messages from 2010-07-28 to 2010-07-30. Participants: Geoff Russell, Jonathan Nieder. Thread: https://gitlist.dev/t/24548 ## Geoff Russell, 2010-07-28 08:53 Subject: finding if a commit is needed Message-ID: URL: https://gitlist.dev/e/AANLkTin4o%3DuNBFELYMb8TDA%3DtaGJyqpLvgxZcPFr%2BPq%2B%40mail.gmail.com ``` We have an interface which "rolls back" commits to a previous time in a set of data files using read-tree. Works great ... but sometimes there are files which have been changed in the working tree which cause read-tree to fail. The files should have been committed but weren't. "git read-tree -i" isn't appropriate because we want to commit these files before the read-tree rolls them back ... because they are changes which might be resurrected and we don't want to lose them altogether. So ... git commit -a -m "something" && git read-tree ... Doesn't work when there are no files which need committing ... git commit -a -m "something" || git read-tree ... Doesn't work when there are. Is there something which can test whether a commit is needed? I define "needed" as meaning when git commit -a would make a non-identical commit. Many thanks, Geoff. ``` ## Jonathan Nieder, 2010-07-29 00:06 Subject: Re: finding if a commit is needed Message-ID: <20100729000647.GB29156@dert.cs.uchicago.edu> URL: https://gitlist.dev/e/20100729000647.GB29156%40dert.cs.uchicago.edu In-Reply-To: ``` Geoff Russell wrote: > Is there something which can test whether a commit is needed? > > I define "needed" as meaning when git commit -a would make a non-identical > commit. Maybe "git diff --exit-code HEAD"? Regards, Jonathan ``` ## Geoff Russell, 2010-07-30 10:16 Subject: Re: finding if a commit is needed Message-ID: URL: https://gitlist.dev/e/AANLkTinvLVJbnZ4ZnrszV1taDUS3B-0aWYoD1Q5UyFtA%40mail.gmail.com In-Reply-To: <20100729000647.GB29156@dert.cs.uchicago.edu> ``` On Thu, Jul 29, 2010 at 9:36 AM, Jonathan Nieder wrote: > Geoff Russell wrote: > >> Is there something which can test whether a commit is needed? >> >> I define "needed" as meaning when git commit -a would make a non-identical >> commit. > > Maybe "git diff --exit-code HEAD"? Thanks ... "git diff --quiet || echo differences" Cheers, Geoff. > > Regards, > Jonathan > -- 6 Fifth Ave, St Morris, S.A. 5068 Australia Ph: 041 8805 184 / 08 8332 5069 http://perfidy.com.au ```