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#!/usr/bin/env bash
# Open given systemd unit in editor.
set -euo pipefail
usage() {
cat <<EOF >&2
Usage: ${0##*/} [OPTIONS] unit-name
OPTIONS is systemctl options. User --user for user service.
EOF
exit 1
}
get_unit_path() {
path=$(systemctl show -P FragmentPath "$@")
if [ -z "$path" ]; then
echo "Unit file not found" >&2
exit 2
fi
echo "$path"
}
is_user_unit() {
[ "${1##"$HOME"/}" == "$1" ]
}
main() {
[ $# -eq 0 ] && usage
path=$(get_unit_path "$@")
if is_user_unit "$path"; then
sudo -e "$path"
else
"${EDITOR:-vim}" "$path"
fi
}
main "$@"
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