dub optional dependency

[evilrat]

On Saturday, 28 October 2017 at 19:23:42 UTC, ikod wrote:
>
> So default version is "std", I can build it w/o vibe-d, but dub 
> anyway fetch  vibe-d.
> I'd like dub fetch vibe-d only when I build with --config vibed.
>
> I know about "optional": true, it prevent dub to fetch vibe-d 
> for "std" config, but it also prevent it from fetching for 
> --config vibed.
>

This is dub design choice, optional requires manual fetching(dub 
fetch 'package'). I don't see other options, but you can try hack 
this using 'preBuildCommands' by adding dub fetch. Of course this 
defeats the purpose.

Isn't it possible to put dependencies in specific configuration?