Re: LilyPond as a service

[Abraham Lee]

This sounds a lot like lilybin.com...

- Abraham

On Wed, Feb 17, 2016 at 2:45 PM, Urs Liska <address@hidden> wrote:

> I know this has been discussed in various flavors over the years, but I
> need to raise the issue once more. Please note that this actually
> encloses two questions.
>
> Would it be possible to make LilyPond work in a server mode where the
> whole Guile environment is loaded only once and the running server would
> be listening and accepting files to compile (or maybe piped .ly input or
> even Scheme music expressions)?
>
> I assume this could provide significant improvements in a number of use
> cases.
>
> How fundamentally would one have to turn LilyPond's architecture upside
> down for this? Is this conceptually impossible, just difficult or simply
> too big to have been tackled so far?
>
> Is this a task that could *somehow* be estimated in developer
> weeks/months if one would dream of a paid developer?
>
>
> ###
>
> A second idea is not directly related but would rely on the first. If
> LilyPond *could* run as a server, would there be a chance to keep the
> parsed document (i.e. not the engraving) in memory?
> This may seem nonsensical, but if I'm not mistaken this would open up
> the possibility to recompile a document with changed edition-engraver
> mods. As these could also comprise skipTypesetting commands this would
> make it possible to recompile an arbitrary excerpt (e.g. the current
> system) of a score while tweaking, without LilyPond having to parse the
> whole score over and over again.
>
> Same questions as above: conceptually possible at all, any estimate on
> the size of such an endeavour?
>
> Thanks
> Urs
>
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