rdep

#!/bin/sh
# print revdeps of packages specified on command-line
# (c) 2019-2024 Michał Górny <mgorny@gentoo.org>
# SPDX-License-Identifier: GPL-2.0-or-later

# bsdtar is faster than GNU tar
if command -v bsdtar >/dev/null; then
	TAR="bsdtar -xqOf"
else
	TAR="tar -xOf"
fi

# find the best cache available
CACHEDIR=${TMPDIR:-/tmp}/mgorny-dev-scripts
GET=
if [ -d "${CACHEDIR}" ]; then
	cd "${CACHEDIR}" || exit 1
	if [ -f rdeps.tar.lz4 ]; then
		GET="${TAR} rdeps.tar.lz4 "
	elif [ -f rdeps.tar ]; then
		GET="${TAR} rdeps.tar "
	elif [ -d rindex ]; then
		GET="cat "
	fi
fi

# use wget if no cache available
if [ -z "${GET}" ]; then
	echo "[Fetching from qa-reports, please consider running rdep-fetch-cache]" >&2
	GET="wget -q -O - https://qa-reports.gentoo.org/output/genrdeps/"
fi


fetch() {
	${GET}${1}index/${pkg}
}

for pkg; do
	echo "== rdep of ${pkg} ==" >&2
	fetch r
	echo "== ddep of ${pkg} ==" >&2
	fetch d
	echo "== bdep of ${pkg} ==" >&2
	fetch b
	echo "== pdep of ${pkg} ==" >&2
	fetch p
	echo "== idep of ${pkg} ==" >&2
	fetch i
done