Superbuild devel mode

[alaurenzi]

Would it be possible to have a kind of "devel mode" for the superbuild? What do I mean:

• inside the BuildXXX.cmake file you right now specify a tag for each repo, which probably is a stable tag. You should be able to set two, one for the "stable mode" and one for the "devel mode".
• when you (somehow) set the superbuild to devel mode, a make-update would automatically do the checkout of all repos to their devel branch
• when you (somehow) set the superbuild to stable mode, a make-update would automatically do the checkout of all repos to their stable branch

Not sure if this is actually needed, since you could probably obtain the same effect by branching the whole superbuild... just something to think about!

[traversaro]

@drdanz This could be quite handy also for the new master/devel workflow of YARP/iCub repositories.

[liesrock]

Any news about this? @drdanz

[drdanz]

Sorry, I missed this...
In YCM for each "Foo" repo, there is the YCM_EP_DEVEL_MODE_<Foo> variable that could be used.
You can switch the TAG depending on that variable... Anyway I don't think that it would be the right way of doing it...

Another approach is to have an option in the ProjectTags.cmake file and set the tags to different values depending on that option.

Unfortunately the issues when switching branches are still valid, since a pull --rebase is performed