with git 1.8.3.1 get only merged tags

with git 1.8.3.1 get only merged tags

[Michal Novotny]

Hello,

I need to emulate git tag --merged with very old git 1.8.3.1. Is that
somehow possible?
I am looking for a bash function that would take what git 1.8.3.1
offers and return only the tags accessible from the current branch
tip. Could you, please, give me at least a hint how this could be
done?

Thank you
clime

Re: with git 1.8.3.1 get only merged tags

[Jeff King]

On Tue, Sep 11, 2018 at 12:43:15PM +0200, Michal Novotny wrote:

> I need to emulate git tag --merged with very old git 1.8.3.1. Is that
> somehow possible?
> I am looking for a bash function that would take what git 1.8.3.1
> offers and return only the tags accessible from the current branch
> tip. Could you, please, give me at least a hint how this could be
> done?

This is not particularly fast, but it should work:

  git for-each-ref refs/tags |
  cut -f2 |
  while read tag; do
    test "$(git merge-base $tag HEAD)" = \
         "$(git rev-parse $tag^{commit})" && echo $tag
  done

-Peff

Re: with git 1.8.3.1 get only merged tags

[Michal Novotny]

On Tue, Sep 11, 2018 at 9:05 PM Jeff King <peff@peff.net> wrote:
>
> On Tue, Sep 11, 2018 at 12:43:15PM +0200, Michal Novotny wrote:
>
> > I need to emulate git tag --merged with very old git 1.8.3.1. Is that
> > somehow possible?
> > I am looking for a bash function that would take what git 1.8.3.1
> > offers and return only the tags accessible from the current branch
> > tip. Could you, please, give me at least a hint how this could be
> > done?
>
> This is not particularly fast, but it should work:
>
>   git for-each-ref refs/tags |
>   cut -f2 |
>   while read tag; do
>     test "$(git merge-base $tag HEAD)" = \
>          "$(git rev-parse $tag^{commit})" && echo $tag
>   done

That works for me. Thank you a lot for help!

clime

>
> -Peff

Re: with git 1.8.3.1 get only merged tags

[Ævar Arnfjörð Bjarmason]

On Tue, Sep 11 2018, Michal Novotny wrote:

> I need to emulate git tag --merged with very old git 1.8.3.1. Is that
> somehow possible?
> I am looking for a bash function that would take what git 1.8.3.1
> offers and return only the tags accessible from the current branch

Jeff answer the question you had, but I just have one of my own: Is
RedHat stuck on 1.8-era git in some release it's still maintaining, does
this mean that e.g. you're still backporting security fixes to this
2012-era release?

Re: with git 1.8.3.1 get only merged tags

[Michal Novotny]

On Thu, Sep 13, 2018 at 1:27 PM Ævar Arnfjörð Bjarmason
<avarab@gmail.com> wrote:
>
>
> On Tue, Sep 11 2018, Michal Novotny wrote:
>
> > I need to emulate git tag --merged with very old git 1.8.3.1. Is that
> > somehow possible?
> > I am looking for a bash function that would take what git 1.8.3.1
> > offers and return only the tags accessible from the current branch
>
> Jeff answer the question you had, but I just have one of my own: Is
> RedHat stuck on 1.8-era git in some release it's still maintaining, does
> this mean that e.g. you're still backporting security fixes to this
> 2012-era release?

Yes, that's exactly the case with RHEL-7.

clime