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#!/bin/sh
# A wrapper around ImageMagick's `convert` so we can
# prevent it from using Inkscape to convert SVG files
# (which can pollute one's local filesystem with a fontcache;
# as reported by Tim Dickson, who helps maintain the
# Slackware version of the 'tuxpaint' package).
#
# Bill Kendrick <bill@newbreedsoftware.com>
# with input from Mark Kim, TOYAMA Shin-ichi, and Tim Dickson.
#
# Last modified: 2023-06-17
INPUT=`{
shift \`expr $# - 2\`
echo $1
}`
FILEEXT=`echo "$INPUT" | awk -F"." '{printf $NF}'`
if [ x$FILEEXT = "xsvg" ]; then
# An SVG!
# Create a dummy 'inkscape' that exits in such a way
# that Imagemagick's `convert` will fallback to another
# SVG converter, thus avoiding invoking the real Inkscape.
echo "exit 1" > ./inkscape
chmod +x ./inkscape
# Add the local directory to the beginning of this script's
# $PATH so `convert` finds the dummy script we just made.
export PATH="`pwd`":"${PATH}"
# Now run `convert` in the usual way (and grab its exit status,
# so we don't catch `rm`'s)
convert $@
EXIT=$?
# Clean up
rm ./inkscape
else
# Not an SVG (so, a PNG or JPEG); just run `convert` as usual.
convert $@
EXIT=$?
fi
exit $EXIT
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