[CMake] Building a Version Header

[Daniel Blezek]

One alternative is to use git itself.  There is a "git smudge" option that
can do much of what you are asking.  However, I've never done this sort of
thing.

http://progit.org/book/ch7-2.html

Just $0.02,
-dan


On 7/8/10 3:31 PM, "Tyler Roscoe" <tyler at cryptio.net> wrote:

> On Wed, Jul 07, 2010 at 10:43:15PM -0400, John Drescher wrote:
>> On Wed, Jul 7, 2010 at 9:44 PM, Clark Gaebel <cg.wowus.cg at gmail.com> wrote:
>>> I would like to generate file that looks something like this:
>>> 
>>>    // version.h
>>>    #define VERSION "v0.1-345-ga77ede8"
>> 
>> You want to do that with configure_file
> 
> The upside of this approach is that it's simple. The downside is that it
> is only run (and thus your version header is only updated) whenever
> CMake runs. It's possible for the source code to change without
> triggering a re-run of CMake.
> 
> Consequently, we use a custom command to call a python script at build
> time. The script writes out the header with the up-to-date version info.
> 
> tyler
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-- 
Daniel Blezek, PhD
Medical Imaging Informatics Innovation Center

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