taskcat

#!/bin/bash

# Copyright 2015 by Leipzig University Library, http://ub.uni-leipzig.de
#                   The Finc Authors, http://finc.info
#                   Martin Czygan, <martin.czygan@uni-leipzig.de>
#
# This file is part of some open source application.
#
# Some open source application is free software: you can redistribute
# it and/or modify it under the terms of the GNU General Public
# License as published by the Free Software Foundation, either
# version 3 of the License, or (at your option) any later version.
#
# Some open source application is distributed in the hope that it will
# be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
# of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Foobar.  If not, see <http://www.gnu.org/licenses/>.
#
# @license GPL-3.0+ <http://spdx.org/licenses/GPL-3.0+>

set -eu

OUTPUT=$(taskoutput "$@")

if [[ ! -f "$OUTPUT" ]]; then
	read -p "output does not exists, should we try to run this task now [y/N]? " -r
	if [[ $REPLY =~ ^[Yy]$ ]]; then
		taskdo "$@"
	else
		exit 1
	fi
fi

fastzcat() {
	if hash unpigz 2>/dev/null; then
		unpigz -c "$@"
	else
		if [[ "$OSTYPE" == "darwin"* ]]; then
			gzcat "$@"
		else
			zcat "$@"
		fi
	fi
}

if [[ "$OUTPUT" == *mrc ]]; then
	yaz-marcdump "$OUTPUT"
elif [[ "$OUTPUT" == *gz ]]; then
	fastzcat "$OUTPUT"
elif [[ "$OUTPUT" == *zip ]]; then
	unzip -l "$OUTPUT"
elif [[ "$OUTPUT" == *zst ]]; then
	unzstd -q -c "$OUTPUT"
else
	cat "$OUTPUT"
fi