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#! /bin/sh
# usage: with-tmpdir [-t TEMPLATE] COMMAND [ARGS...]
# see mktemp(1) for TEMPLATE
set -efu
template=with-tmpdir.XXXXXXXX
case $1 in
-t) template=$2; shift 2;;
esac
TMPDIR=$(mktemp -dt "$template")
# make sure $TMPDIR exists and is a directory
(cd "$TMPDIR")
cleanup() {
# ensure $PWD != $TMPDIR
cd /
rm -fR "$TMPDIR"
}
trap 'cleanup; trap - EXIT INT QUIT' \
EXIT INT QUIT
export TMPDIR
"$@"
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