Re: Adding files to a git-archive when it is generated, and whats the best way to find out what branch a commit is on?

[demerphq <demerphq@gmail.com>]

2009/7/29 Santi Béjar <santi@agolina.net>:
> 2009/7/29 demerphq <demerphq@gmail.com>:
>> 2009/7/29 Santi Béjar <santi@agolina.net>:
>>> 2009/7/29 demerphq <demerphq@gmail.com>:
>>>> Another question is whether anyone has any advice on the best way to
>>>> find out the "best" branch an arbitrary commit is on. Where best can
>>>> be flexibly definied to handle commits that are reachable from
>>>> multiple branches.  I have hacked a solution involving git-log and
>>>> grep, but it performs quite poorly. I was wondering if there is a
>>>> better solution.
>>>
>>> The "best" tag is easy: git describe commit. For branches I think you
>>> could use "git name-ref --refs=refs/heads/* commit", because git
>>> describe does not have a --branches flag.
>>
>> Dang, I guess this is from a newer release than mine. So now i have an
>> excuse to upgrade.
>
> No, it is quite old (the --refs flag since the v1.5.1). If the problem
> is that you don't find the "git name-ref" command is because it is
> "git name-rev", oops.

Dang, guess i need a different excuse. :-)

But it doesn't seem to do what i need:

$ git name-rev --refs=refs/heads/* faa7dc9f4d3a618b0ad8b3c95edd54e24c6976e7
faa7dc9f4d3a618b0ad8b3c95edd54e24c6976e7 undefined

But i think that just because in this case I need remote refs:

git name-rev --refs=refs/remotes/* faa7dc9f4d3a618b0ad8b3c95edd54e24c6976e7
faa7dc9f4d3a618b0ad8b3c95edd54e24c6976e7 remotes/origin/maint-5.005~25

Which is definitely better. Can I safely strip the ~25 off the end to
get the real branch name?

BTW, this is the shell version of what I'm currently using:

$ for b in $(git branch -r); do git log --pretty='format:%H' $b | grep
faa7dc9f4d3a618b0ad8b3c95edd54e24c6976e7 && echo $b; done
faa7dc9f4d3a618b0ad8b3c95edd54e24c6976e7
origin/maint-5.005

The main difference with the real code I use (in perl) is that I can
specify the order of the branches to be searched, so that I can ensure
that if its on two it is reported to be "from" the most likely
candidate. And of course the perl version I use stops searching as
soon as it finds a match.

Anyway, if I can reliably strip off the ~25 then this is a big step
forward for me.

Thanks Santi, and of course thanks Johannes (author of name-rev).

cheers,
Yves

-- 
perl -Mre=debug -e "/just|another|perl|hacker/"