[CMake] Effort to create a new generator (tup)

[Gustavo Sverzut Barbieri]

On Tue, May 4, 2010 at 5:47 PM, Bill Hoffman <bill.hoffman at kitware.com> wrote:
> On 4/22/2010 3:47 PM, Gustavo Sverzut Barbieri wrote:
>>
>> Hi all,
>>
>> My team is just starting with CMake to have our WebKit port (EFL), so
>> far we like it as it is much cleaner than our previous experiences
>> (most of our projects use autotools).
>>
>> Since webkit is a monster project (1668 objects generated), even doing
>> stat() on all files takes time, so make when there is nothing to make
>> takes more than we'd like. To solve this there are alternatives to
>> "make" that are quite nice, giving UNIX the speed other projects that
>> uses all-in-one IDE/compiler have, they do track the files that
>> changed and there is no need to check, you already know what changed.
>>
>> One of the alternatives is tup (http://gittup.org/tup/index.html), it
>> uses Linux inotify support to track what changed and is quite nice.
>> All it need is a tupfile that represents a DAG, one can see examples
>> in http://gittup.org/tup/examples.html   Tup also traps open() system
>> calls using LD_PRELOAD and will automatically know the dependencies
>> based on files it reads.
>>
>> As we never attempted to do any sort of CMake generator, not even
>> looking the existing, I'd like to know the expected effort to write
>> one for Tup from you guys. Anyone that would like to help with this
>> task?
>>
>
> I think it would be a somewhat larger undertaking.   It may tax tup quite a
> bit.  However, CMake has a pretty good set of tests so you would know when
> it was working.

Thanks! It is not so high priority, but certain an interesting project ;-)


-- 
Gustavo Sverzut Barbieri
http://profusion.mobi embedded systems
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