#!/bin/bash
# SPDX-License-Identifier: LGPL-2.1-or-later
set -e

if [[ "$1" == "build" ]]; then
    exit 0
fi

mapfile -t PACKAGES < <(jq --raw-output .VolatilePackages[] <"$MKOSI_CONFIG")

PATTERNS=()

# The ?reverse-depends() pattern for some weird reason lists all the packages providing systemd-sysusers
# instead of just excluding it, so we add another pattern to filter out anything that conflicts with
# any other systemd packages so we filter out both opensysusers and systemd-sysusers-standalone. We also
# exclude packages that belong to the systemd source package as we'll install these later. Finally, we
# exclude virtual packages as trying to install these makes apt fail with an error saying we need to install
# a specific implementation even if one is already installed.
COMMON="?not(?virtual), ?not(?reverse-conflicts(?source-package(^systemd$))), ?not(?reverse-breaks(?source-package(^systemd$))), ?not(?source-package(^systemd$))"

for PACKAGE in "${PACKAGES[@]}"; do
    # Get all the dependencies of the systemd packages including recommended and suggested dependencies.
    PATTERNS+=(
        "?and(?reverse-depends(?exact-name($PACKAGE)), $COMMON)"
        "?and(?reverse-recommends(?exact-name($PACKAGE)), $COMMON)"
        "?and(?reverse-suggests(?exact-name($PACKAGE)), $COMMON)"
    )
done

mkosi-install "${PATTERNS[@]}"