[cmake-developers] Creating cdash subprojects: create_cdash_subprojects()

[Alexander Neundorf]

On Tuesday 28 September 2010, David Cole wrote:
> Ambitious. I like it.
>
> I would prefer seeing this implemented as a CMake-language function. And

You mean to implement this as a cmake script, and not as a built-in function ?

> adding anything necessary to CMake in order to support implementing it in
> the CMake language.
>
> (Because I think that adding such support would also enable a slew of other
> unthought-of-as-yet functionality that will prove extremely useful...)
>
> However, if that's not possible, or not your cup of tea, I would not fight
> against including a native command to implement this functionality.
>
> One problem I foresee with this right from the get-go is that it is very
> complex and will be difficult to test well. And possibly difficult to
> figure out what's gone wrong when something does go wrong.
>
> You have time to prototype this in the CMake language and tell us what new
> functionality we'd need to support it there? (I can tell we'll need
> commands to iterate projects and targets... any others needed?)

I think just a way to get a list of projects and of targets in a project 
wouldn't be enough.
I would need
* get the list of projects (easy)
* I must be able to check whether project A is contained in project B
* I need the targets per project (easy)
* I need to figure out the dependencies between the projects/the contained 
targets. I'm not sure I want to do that in cmake script.

or I need a way to get the projects a project depends on (or the targets a 
project depends on and then figure out in cmake-script to which projects 
these targets belong :-/)

My feeling is that figuring out the dependencies should be done in C++.

Alex