Re: [Boost-build] v2 Exe targets from nested Jamfiles

From: Johan Nilsson (r.johan.nilsson_at_[hidden])
Date: 2006-09-13 02:33:23

K. Noel Belcourt wrote:
> Hi,
>
> In my Jamroot, I need a list of all the exe targets defined anywhere
> in the nested Jamfiles.  I want to do this so I can have a top-level
> list of all executable targets to install without asking the user to
> enumerate each target explicitly.  Our directory structure is
> arbitrarily named by the user, but the Jamfiles are never more than
> two levels deep.  It's easy to get a list of all the nested Jamfiles
>
> local cwd = [ PWD ] ;
> all-jamfiles = [ glob */Jamfile */*/Jamfile ] ;
>
> But I can't see how to grep each Jamfile to get a list of the
> executable targets without writing a custom scanner.  I tried this
>
> all-executables = [ MATCH "^exe (.*)" : $(all-jamfiles) ] ;
>
> which only greps the Jam file name, not the Jamfile contents.  Any
> ideas how to accomplish this?

To answer this specific question; use the built-in SHELL rule to catenate 
each of the Jamfiles and use MATCH on the result to find the exe targets.

But I guess there might be a better overall solution.

// Johan