Merging a branch when I don't want conflicts

Merging a branch when I don't want conflicts

[Geoff Russell]

How do I merge a branch X into my master and tell git that whenever there
is a conflict, the file on X should prevail?  This is for a scripted
application.

Cheers,
Geoff

Re: Merging a branch when I don't want conflicts

[Johannes Sixt]

Geoff Russell schrieb:
> How do I merge a branch X into my master and tell git that whenever there
> is a conflict, the file on X should prevail?  This is for a scripted
> application.

I assume you talk about file-level (content) merges.

There is no such tool, and the reason is that what you try to do here does
not make sense *in general*. It must be a very special kind of project
where you can blindly trust one side over the other if there are
conflicts, and that you can additionally trust non-conflicting content merges.

The best you can do is perhaps to pipe conflicting files through

    sed -e '/^<<<<<<</,/^=======/d' -e '/^>>>>>>>/d'

-- Hannes

Re: Merging a branch when I don't want conflicts

[Geoff Russell]

On 5/18/09, Johannes Sixt <j.sixt@viscovery.net> wrote:
> Geoff Russell schrieb:
>
> > How do I merge a branch X into my master and tell git that whenever there
>  > is a conflict, the file on X should prevail?  This is for a scripted
>  > application.
>
>
> I assume you talk about file-level (content) merges.

Yes.

>
>  There is no such tool, and the reason is that what you try to do here does
>  not make sense *in general*. It must be a very special kind of project
>  where you can blindly trust one side over the other if there are
>  conflicts, and that you can additionally trust non-conflicting content merges.

The file is data coming out of an interactive program which reads
the entire file, edits and then writes the entire file at which point
this file is correct
and all previous versions are obsolete.  I don't really want a merge
at all, but just
want to replace the file in the master with the version on the branch.

Thanks anyway.

Cheers,
Geoff.

>
>  The best you can do is perhaps to pipe conflicting files through
>
>     sed -e '/^<<<<<<</,/^=======/d' -e '/^>>>>>>>/d'
>
>  -- Hannes
>
>


-- 
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Re: Merging a branch when I don't want conflicts

[Johannes Sixt]

Geoff Russell schrieb:
> The file is data coming out of an interactive program which reads
> the entire file, edits and then writes the entire file at which point
> this file is correct
> and all previous versions are obsolete.  I don't really want a merge
> at all, but just
> want to replace the file in the master with the version on the branch.

Ah, so finally you say what you mean ;)

You can define a custom merge driver that always returns the content of
the second branch. See 'man gitattributes'.

-- Hannes

Re: Merging a branch when I don't want conflicts

[Nanako Shiraishi]

Quoting Johannes Sixt <j.sixt@viscovery.net>:

> Geoff Russell schrieb:
>> How do I merge a branch X into my master and tell git that whenever there
>> is a conflict, the file on X should prevail?  This is for a scripted
>> application.
>
> I assume you talk about file-level (content) merges.
>
> There is no such tool, and the reason is that what you try to do here does
> not make sense *in general*. It must be a very special kind of project
> where you can blindly trust one side over the other if there are
> conflicts, and that you can additionally trust non-conflicting content merges.
>
> The best you can do is perhaps to pipe conflicting files through
>
>     sed -e '/^<<<<<<</,/^=======/d' -e '/^>>>>>>>/d'
>
> -- Hannes

I think -Xours enhancement that was developed long time ago

    http://thread.gmane.org/gmane.comp.version-control.git/76650/focus=89021

should help Geoff's use case.

-- 
Nanako Shiraishi
http://ivory.ap.teacup.com/nanako3/

Re: Merging a branch when I don't want conflicts

[Tay Ray Chuan]

Hi,

On Mon, May 18, 2009 at 6:45 PM, Nanako Shiraishi <nanako3@lavabit.com> wrote:
> I think -Xours enhancement that was developed long time ago

I think this is now called -s ours/--strategy=ours:

http://www.kernel.org/pub/software/scm/git/docs/git-merge.html

-- 
Cheers,
Ray Chuan

Re: Merging a branch when I don't want conflicts

[Junio C Hamano]

Tay Ray Chuan <rctay89@gmail.com> writes:

> Hi,
>
> On Mon, May 18, 2009 at 6:45 PM, Nanako Shiraishi <nanako3@lavabit.com> wrote:
>> I think -Xours enhancement that was developed long time ago
>
> I think this is now called -s ours/--strategy=ours:
>
> http://www.kernel.org/pub/software/scm/git/docs/git-merge.html

Read it again.  -Xours is very different from -s ours.

Re: Merging a branch when I don't want conflicts

[Geoff Russell]

On Mon, May 18, 2009 at 6:31 PM, Johannes Sixt <j.sixt@viscovery.net> wrote:
> Geoff Russell schrieb:
>> The file is data coming out of an interactive program which reads
>> the entire file, edits and then writes the entire file at which point
>> this file is correct
>> and all previous versions are obsolete.  I don't really want a merge
>> at all, but just
>> want to replace the file in the master with the version on the branch.
>
> Ah, so finally you say what you mean ;)
>
> You can define a custom merge driver that always returns the content of
> the second branch. See 'man gitattributes'.
>
> -- Hannes
>

Sorry for the confusion. A custom merge driver will work fine ... but I
will also rethink carefully  what I am doing.

Cheers,
Geoff.