I forgot one other use case:
- wanting to pull from tracking branches without fastforwarding is not
such a smart idea.
of course I can do
git merge from remotes/origin/branch
but this is more to type and would vary depending on whether 'd like to
pull from an unpushed tracking branch or from a freshly fetched tracking
branch.
On 12/12/2011 11:13 AM, Gelonida N wrote:
> Thanks for this rather long answer,
>
> On 12/12/2011 09:09 AM, Junio C Hamano wrote:
>> Gelonida N <gelonida@xxxxxxxxx> writes:
>>
>>> What is the best way to fastforward all fastforwardable tracking
>>> branches after a git fetch?
>>
>> This lacks context and invites too many tangents, so I'll only touch a few
>> of them.
>>
>> First of all, why do you want to do this?
>>
>
> To explain the scenario:
> - small project
> - every person works on master and multiple topic branches
> and might alternate rather often
> - sometimes several persons work on the same topic branch
> but most of the time not in parallel.
> - one person is working from several machines (starting work on
> one and continuing on another)
> - additionally we do many pushed in order to be sure,
> that our data is backed up in case of disk failures.
> - sometimes I just want to 'build' from a branch, that I am not
> working on. but there I create mostly not even a tracking branch
>
> before changing a machine I want to be sure to have pushed everything. I
> wanted to get rid of the warning, that some branches cannot be pushed,
> because they aren't fastforwarded
>
> when checking out a branch I want to avoid, that I have to pull manually.
>
>
>
>> In other words, wouldn't a post-checkout hook be a better place to do
>> this kind of thing, perhaps like this (completely untested)?
>>
>> #!/bin/sh
>> old=$1 new=$2 kind=$3
>>
>> # did we checkout a branch?
>> test "$kind" = 1 || exit 0
>>
>> # what did we check out?
>> branch=$(git symbolic-ref HEAD 2>/dev/null) || exit 0
>>
>> # does it track anything? otherwise nothing needs to be done
>> upstream=$(git for-each-ref --format='%(upstream)' "$branch")
>> test -z "$upstream" || exit 0
>>
>> # are we up-to-date? if so no need to do anything
>> test 0 = $(git rev-list "..$upstream" | wc -l) && exit 0
>>
>> # do we have something we made? if so no point trying to fast-forward
>> test 0 = $(git rev-list "$upstream.." | wc -l) || exit 0
>>
>> # attempt a fast-forward merge with it
>> git merge --ff-only @{upstream}
>>
>
> This is a solution, I wouldn't get rid of the warnings though when
> running git push.
>
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