[FFmpeg-devel] [PATCH] doc: add script to compute texi files dependencies

[Stefano Sabatini]

On date Thursday 2013-05-30 10:17:49 +0200, Stefano Sabatini encoded:
> On date Wednesday 2013-05-29 18:58:53 +0200, Michael Niedermayer encoded:
> > On Tue, May 28, 2013 at 10:32:09PM +0200, Stefano Sabatini wrote:
> > > Replace the inline awk script with a Perl script which tracks the
> > > dependencies recursively.
> > > 
> > > This allows to correctly track dependencies for files containing files
> > > with a second level include (for example: ffmpeg-devices.texi ->
> > > devices.texi -> outdevs.texi).
> > 
> > does this add any dependancies to any use cases of ffmpeg ?
> 
> We already use perl for TEXI->POD, POD->MAN and TEXI->HTML depend on a
> perl script, so no, in practice we already require the presence of
> perl for MAN and HTML output generation.
> 
> Practically this means that I should probably extend the dependencies
> like this:
> podpages_deps="perl"
> manpages_deps="pod2man"      => "perl podman"
> htmlpages_deps="texi2html"   => "perl texi2html"
> txtpages_deps="makeinfo"     => "perl makeinfo"
> 
> Right now in a system with no perl we are able to create TXTPAGES
> only, that is fate.txt. Maybe I could implement the script in awk, but
> I'm not familiar with that language and it would require more time for
> me to write and maintain.

Updated with circular dependencies detection. Note that in case of
circular dependencies the script was already exiting because the
maximum number of open files was reached.
-- 
FFmpeg = Fantastic and Fundamental Mere Plastic Ecumenical Guide
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