[cmake-developers] Extracting target metadata, IDE integration

[Aleix Pol]

Dear cmake'rs,
I'm rewriting the KDevelop plugin from scratch to fetch the information
from the build directory.

Now in the first implementation I'm using the compile_commands.json file
that cmake already can generate for some time. It works quite well already,
given how data just comes out ready to be consumed (almost). The problem
now is that we're lacking some information, namely information about the
targets, their location and such *.

To that end, I wrote a little patch to be taken as a proof of concept, that
generates (some of) the needed information. I would like to know if you
think it's an approach that would be accepted in the cmake code-base or if
I need to take a different approach.

Patch http://proli.net/meu/kdevelop/cmake-targetsdata.patch
Output: http://proli.net/meu/kdevelop/AwesomeTargets.json

Cheers!
Aleix

* Yes, I'm aware of generators, but I'm not comfortable with the idea of
tying a build directory to an editor (even if it's my editor). Our users
usually build the projects with different tools and asking them to
re-create their build only for being comfortable with KDevelop sometimes is
a burden. It would be for me too!
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