# Retrieving last tag of a working tree

3 messages from 2008-12-18 to 2008-12-21. Participants: the_jack, Sitaram Chamarty, Thomas Rast.
Thread: https://gitlist.dev/t/16782

## the_jack, 2008-12-18 12:07

Subject: Retrieving last tag of a working tree
Message-ID: <21071491.post@talk.nabble.com>
URL: https://gitlist.dev/e/21071491.post%40talk.nabble.com

```

I'm using msys git on Windows XP for version tracking embedded design project
in C. I mostly work with GUIs (git-gui and qgit), I use bash only when I
have to.

I need to be able to access version from software. To do that, I use tags to
mark all released versions, and that version string is written to file
version.h (the file is not tracked) by pre-build command:

#define KDK_SOFTWARE_VERSION "0.72"

Precompiler assigns this string to a variable. At this moment, version.h is
filled by python script that calls "git-describe --tag HEAD" and parses the
output. This works, but it's not quite reliable. There has to be a better
way for getting the last tag of current working tree. If I checkout an
earlier tagged version (0.70), I would need to automatically get 0.70 inside
version.h

Can anyone shed any light on this?
-- 
View this message in context: http://www.nabble.com/Retrieving-last-tag-of-a-working-tree-tp21071491p21071491.html
Sent from the git mailing list archive at Nabble.com.

```

## Sitaram Chamarty, 2008-12-21 14:53

Subject: Re: Retrieving last tag of a working tree
Message-ID: <slrngksm2t.p3b.sitaramc@sitaramc.homelinux.net>
URL: https://gitlist.dev/e/slrngksm2t.p3b.sitaramc%40sitaramc.homelinux.net
In-Reply-To: <21071491.post@talk.nabble.com>

```
On 2008-12-18, the_jack <josip@yopmail.com> wrote:
>
> output. This works, but it's not quite reliable. There has to be a better
> way for getting the last tag of current working tree. If I checkout an

git describe?

```

## Thomas Rast, 2008-12-21 15:28

Subject: Re: Retrieving last tag of a working tree
Message-ID: <200812211628.59120.trast@student.ethz.ch>
URL: https://gitlist.dev/e/200812211628.59120.trast%40student.ethz.ch
In-Reply-To: <21071491.post@talk.nabble.com>

```
the_jack wrote:
> Precompiler assigns this string to a variable. At this moment, version.h is
> filled by python script that calls "git-describe --tag HEAD" and parses the
> output. This works, but it's not quite reliable. There has to be a better
> way for getting the last tag of current working tree. If I checkout an
> earlier tagged version (0.70), I would need to automatically get 0.70 inside
> version.h

'git describe' is indeed the tool for this.  You have not said in what
way it fails, so here's an educated guess:

Up until 7e425c4 (describe: Make --tags and --all match lightweight
tags more often, 2008-10-13) which will only be in 1.6.1, using --tags
does not match a lightweight tag if there is also an annotated tag
available.

-Thomas

-- 
Thomas Rast
trast@{inf,student}.ethz.ch





```
