Massive libxo-zation that breaks everything

David Chisnall theraven at FreeBSD.org
Mon Mar 2 09:26:02 UTC 2015


On 2 Mar 2015, at 09:16, Julian Elischer <julian at freebsd.org> wrote:
> 
> if we develop a suitable post processor with pluggable grammars, we save a lot of work.
> given enough examples you could almost have automatically generated grammars.

This decoupled approach is problematic.  A large part of the point of libxo is to allow changing the human-readable output without breaking tools that consume the output.  Now I need to keep the tool that consumes it and the tool that produces it in sync, so that's an extra set of moving parts.  When you throw jails with multiple versions of world into the mix, it becomes a recipe for disaster.

David



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