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#!/bin/bash
set -e
[ -n "$DEBUG" ] && set -x
ENGINE=${ENGINE:-tectonic}
ENGINE_ARGS=${ENGINE_ARGS:-}
VIEWER=${VIEWER:-zathura}
reexec=
nocolor=
while getopts 1Rnh opt; do
case "$opt" in
1) entr_args='-z' ;;
R) reexec=1 ;;
n) nocolor=1 ;;
h | ?)
printf "usage: %s [-h]\n" "$(basename "$0")"
printf "\n"
printf " -1 \t only run once\n"
printf " -n \t no color\n"
printf "\n"
exit 2
;;
esac
done
shift $((OPTIND - 1))
# http://stackoverflow.com/a/18443300/441757
_realpath() {
OURPWD=$PWD
cd "$(dirname "$1")"
LINK=$(readlink "$(basename "$1")")
while [ "$LINK" ]; do
cd "$(dirname "$LINK")"
LINK=$(readlink "$(basename "$1")")
done
REALPATH="$PWD/$(basename "$1")"
cd "$OURPWD"
echo "$REALPATH"
}
if [ -n "${reexec}" ]; then
pdf=$(_realpath "$(printf "%s" "$1" | sed 's/\.tex/\.pdf/')")
log() {
if [ -n "${nocolor}" ]; then
printf "%s!==>%s %s\n" "$(tput setaf 2)" "$(tput sgr0)" "$1"
else
printf "==> %s\n" "$1"
fi
}
# compile the document
log "running ${ENGINE}"
${ENGINE} ${ENGINE_ARGS} "$1"
if ! pgrep -fx "${VIEWER} $pdf" >/dev/null; then
# spawn the viewer
log "running ${VIEWER}"
(${VIEWER} "$pdf" >/dev/null 2>&1) &
fi
exit 0
fi
if [ -z "$1" ]; then
ls *.tex
else
[ -f "$1" ] && printf "$1\n"
ls *.tex
fi | entr ${entr_args} -ns 'latexmk -R $0'
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