[racket-dev] change to `raco setup' doc builds and SQLite

Sounds cool.

On yesterday's nightly (debian squeeze 64), I had to do a `sudo raco setup`
to have the help webpage, otherwise I would get a http 404.

Laurent


On Sat, Nov 24, 2012 at 4:09 AM, Matthew Flatt <mflatt at cs.utah.edu> wrote:

> When `raco setup' builds documentation, it now puts cross-reference
> keys and dependency information into an SQLite database. So, building
> documentation now requires that SQLite is installed (on Unixes; SQLite
> is installed by default on Mac OS X, and Racket includes SQLite on
> Windows).
>
> The changes are all under the hood, but you may notice the difference:
>
>  * DrRacket's initial footprint is about 50 MB smaller for a 64-bit
>    build.
>
>    The savings come from not loading all cross-reference information
>    into memory. When you ask for documentation on `cons', DrRacket now
>    consults the database to determine which document might have
>    information on `cons', and so on.
>
>    Ultimately, cross-reference information must be deserialized from
>    the same kind of "out.sxref" file as before. A large document like
>    the Reference can have multiple "out.sxref" files, however, so
>    DrRacket doesn't have to deserialize all of the Reference's
>    cross-references to show information `cons'.
>
>  * When you have a simple Scribble document like
>
>      #lang scribble/base
>      Hello
>
>    and click "Scribble HTML", the result is closer to instantaneous.
>
>    Scribble doesn't have to load (another copy of) all cross-reference
>    information into memory before rendering the document.
>
>    You get the same improvement when using `raco scribble ++xref-in
>    setup/xref load-collections-xref'.
>
>  * The document-rendering part of `raco setup' uses a little less
>    memory and runs a little faster.
>
>    Besides reducing the need to load and re-load cross-reference
>    information, dependency and global duplicate-definition checking is
>    now handled by a database query, so it should scale better.
>
> There will almost certainly be some problems, so keep an eye out for
> broken or suspicious `raco setup' or documentation behavior.
>
> _________________________
>   Racket Developers list:
>   http://lists.racket-lang.org/dev
>
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