[Rivet] Rivet Tex Paths

[David Bjergaard]

Hi Bijan,

I don't know the official reasons for setting all of the TeX variables,
maybe an expert can comment (I'm just an enthusastic user).  

As I understand the way these variables work in general, is that the
program searches for a required file in each directory from the
beginning of the list to end.  This is done to allow users to shadow
system installed programs (or in this case styles).  

The way Rivet is doing it shouldn't clobber anything that you have set
up unless you have a file in texmf/tex/latex with the same name (or
satisfying the same requirement) as one in the rivet installation.

If on the other hand if Rivet is clobbering the variables completely,
that's a bug in the script.  Can you do (before setting up rivet):
echo ${TEXMFHOME} 
echo ${HOMETEXMF} 
echo ${TEXMFCNF} 
echo ${TEXINPUTS} 
echo ${LATEXINPUTS}

And then after setting up rivet (ie source /path/to/rivetenv.sh), and
see what the results are? On my system (linux), they're all unset except
TEXINPUTS, that points to a local installation of style files.  After
setting up rivet, everything gets appended as expected. For example:
echo $TEXINPUTS | tr ':' '\n'
/home/dave/rivet/local/share/Rivet/texmf/tex
/home/dave/local/share/texmf/tex/latex/misc/

If your directories aren't showing up after setting up rivet, then there
may be a bug somewhere.  If they're there but your sty files are getting
shadowed by Rivet, then you can always pop your custom directory back to
the front of the list after setting up rivet:
export TEXMFHOME=${HOME}/texmf/tex/latex:${TEXMFHOME}

It doesn't matter if your path appears twice in the list, when TeX looks
for the sty file it will return the first match and ignore the rest of
the paths.

Hope this helps,

    Dave

Bijan Chokoufe Nejad <bijan.chokoufe at gmail.com> writes:

> Hi all,
>
> I was wondering why you are setting all of those variables in the
> rivetenv.sh:
>
> export TEXMFHOME="${datarootdir}/Rivet/texmf:$TEXMFHOME"
> export HOMETEXMF="${datarootdir}/Rivet/texmf:$HOMETEXMF"
> export TEXMFCNF="${datarootdir}/Rivet/texmf/cnf:$TEXMFCNF"
> export TEXINPUTS="${datarootdir}/Rivet/texmf/tex:$TEXINPUTS"
> export LATEXINPUTS="${datarootdir}/Rivet/texmf/tex:$LATEXINPUTS"
>
> I wasn't expecting that Rivet overwrites my texmf folder (usually I have
> custom sty files in '~/texmf/tex/latex/'). I would guess that setting
> only TEXINPUTS would suffice?
>
> Cheers,
> Bijan
> ---
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