Re: Stamp Git commit id into file during build process

[Erik Faye-Lund <kusmabite@googlemail.com>]

On Sat, Jan 16, 2010 at 7:50 PM, Paul Richards <paul.richards@gmail.com> wrote:
> Hi,
> I am in the process of migrating from Subversion to Git.  One thing I
> am unsure of is how to stamp the 'version' or 'commit id' into a file
> as part of a build process.
>
> With subversion I used the SubWCRev tool from TortoiseSVN
> (http://tortoisesvn.net/docs/release/TortoiseSVN_en/tsvn-subwcrev.html).
>
> With Git I imagine that I'd like to put a copy of the current commit
> id (either the full hash or a truncated version of that) into a file
> which then gets included into the program source code in some way.
>
> Is there a recommended way of doing this with git?  Perhaps with
> something similar to SubWCRev?
>
> Currently I am thinking about using "git log", and grepping the output
> in some way so that I just get the hash.
>

I think you are looking for "git rev-parse HEAD". This outputs the
hash of HEAD as a single line on stdout. Or even better, you can use
the "git describe"-tool, which gives a nice and short description of
the commit relative to the most recent commit.

-- 
Erik "kusma" Faye-Lund