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texlive: provide repstopdf

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repstopdf is supposed to be a symlink to epstopdf. Then epstopdf looks
at "$0" to detect when restricted mode needs to be enabled.  Unfortunately
our wrapper will drop all intermediate symlinks, which messes up "$0".
Restricted mode appears to be a security feature, so a test is
introduced to verify that the wrapper works as expected.
This commit is contained in:
Dmitry Kalinkin 2018-10-29 16:10:24 -04:00
parent 2337c7522a
commit 20643a7807
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1 changed files with 21 additions and 0 deletions
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21
pkgs/tools/typesetting/tex/texlive/combine.nix
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@ -218,8 +218,29 @@ in buildEnv {
ln -sv "$(realpath $s)" "$out/bin/$tName" # wrapped below
done
)
'' +
# A hacky way to provide repstopdf
# * Copy is done to have a correct "$0" so that epstopdf enables the restricted mode
# * ./bin/repstopdf needs to be a symlink to be processed by wrapBin
''
if [[ -e ./bin/epstopdf ]]; then
cp $(realpath ./bin/epstopdf) ./share/texmf/scripts/repstopdf
ln -s "$out"/share/texmf/scripts/repstopdf ./bin/repstopdf
fi
'' +
# finish up the wrappers
''
rm "$out"/bin/*-sys
wrapBin
'' +
# Perform a small test to verify that the restricted mode get enabled when
# needed (detected by checking if it disallows --gscmd)
''
if [[ -e ./bin/epstopdf ]]; then
echo "Testing restricted mode for {,r}epstopdf"
! (epstopdf --gscmd echo /dev/null 2>&1 || true) | grep forbidden
(repstopdf --gscmd echo /dev/null 2>&1 || true) | grep forbidden
fi
'' +
# TODO: a context trigger https://www.preining.info/blog/2015/06/debian-tex-live-2015-the-new-layout/
# http://wiki.contextgarden.net/ConTeXt_Standalone#Unix-like_platforms_.28Linux.2FMacOS_X.2FFreeBSD.2FSolaris.29