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Re: Boost.Build and SCons


Author bewst
Full name David Abrahams
Date 2004-11-24 07:24:28 PST
Message Vladimir Prus <ghost at cs dot msu dot su> writes:

> I was publically promosing that even if
> Boost.Build uses SCons one day, we won't break any existing
> project. This means we need to support that syntax.
> OTOH, it is quite reasonable to use bjam for parsing Jam sources,
> and then invoke SCons build engine. In fact, this is the only
> reasonable approach given that I don't want to rewrite Boost.Build
> yet again:
> 1. Initially, bjam will invoke SCons at the lowest level (creating
> SCons Nodes instead of bjam's targets).
> 2. If that works out OK, we'd need to consider how to mix Python and
> jam language. Say, so that one could write new tool in Python.
> 3. After that, we can gradually move Boost.Build code to
> Python. Given that the languages are very similar, this should not
> be very hard.

I heartily support this approach! In fact, parsing and interpreting
Jam code using Python at some point shouldn't be too difficult either,
should we decide we'd like to do that.

I have to say that this would rekindle my enthusiasm for work on these
projects, provided we could also rededicate ourselves to complete and
understandable documentation at all levels of the project. That has
historically been a weakness of both Boost.Build and Scons, and
merging them without conscious attention to it could easily make the
problem worse.

> The biggest question is if it's reasonable to require Python for
> Boost.Build 2.0. I think that such idea will not find must
> opposition from Boost developers (there's a lot of use of Python
> already), but the question is if Boost.Build + SCons will be stable
> enough in time for 2.0.

The deadline for BB2.0 being... when?

Dave Abrahams
Boost Consulting

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Re: Boost.Build and SCons bewst David Abrahams 2004-11-24 07:24:28 PST
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