#!/bin/sh -eu
# tweak-dpkg-config -- for use in a Docker image
# Copyright (C) 2017  Olaf Meeuwissen
#
# License: GPL-3.0+

cfg=/etc/dpkg/dpkg.cfg.d

cat > $cfg/docker-excludes <<EOF
path-exclude=/usr/share/doc/*
EOF
chmod 0644 $cfg/docker-excludes

cat > $cfg/docker-includes <<EOF
path-include=/usr/share/doc/*/copyright
EOF
chmod 0644 $cfg/docker-includes

# Retro-actively apply the above on what's already installed.
find /usr/share/doc/* -type f ! -name copyright -delete
find /usr/share/doc/* -empty -delete

for dir in \
    /usr/share/groff \
    /usr/share/info \
    /usr/share/linda \
    /usr/share/lintian \
    /usr/share/locale \
    /usr/share/man \
    ; do
    cat >> $cfg/docker-excludes <<EOF
path-exclude=$dir/*
EOF
    find $dir/* -delete || true
done

rm $0