threads / discuss / 24548

finding if a commit is needed

Subject: finding if a commit is needed

## tl;dr

3 messages between Jul 28, 2010 and Jul 30, 2010.

replies: 2people: 2as markdown or json

Geoff Russell· Jul 28, 2010, 08:53 UTC · lore

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· Jul 29, 2010, 00:06 UTC · re: Geoff Russell · lore

Re: finding if a commit is needed

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· Jul 30, 2010, 10:16 UTC · re: Jonathan Nieder · lore

Re: finding if a commit is needed

On Thu, Jul 29, 2010 at 9:36 AM, Jonathan Nieder <jrnieder@gmail.com> wrote:

Show 8 quoted lines

> 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