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path: root/hooks/update_config_protect_list.bash
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#!/usr/bin/env bash
# vim: set et sw=4 sts=4 :

# Copyright (c) 2006 Mike Kelly
#
# This file is part of the Paludis package manager. Paludis 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
# 2 of the License, or (at your option) any later version.
#
# Paludis 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
# this program; if not, write to the Free Software Foundation, Inc., 59 Temple
# Place, Suite 330, Boston, MA  02111-1307  USA

source ${PALUDIS_ECHO_FUNCTIONS_DIR:-${PALUDIS_EBUILD_DIR}}/echo_functions.bash

if [[ -n "${PALUDIS_NO_LIVE_DESTINATION}" ]] ; then
    einfo_unhooked "No need to update CONFIG_PROTECT lists"
    exit 0
fi

vdb_loc="$(${PALUDIS_COMMAND} --log-level silent --configuration-variable installed location )"
cfg_protect_list="${vdb_loc}/.cache/all_CONFIG_PROTECT"
cfg_protect_mask_list="${vdb_loc}/.cache/all_CONFIG_PROTECT_MASK"

if [[ ! -f "${cfg_protect_list}" || ! -f "${cfg_protect_mask_list}" ]] ; then
    # Generate this list for the first time. *slow*
    ewarn "Creating the CONFIG_PROTECT and CONFIG_PROTECT_MASK lists."
    ewarn "This will take a while, but we only have to do it once."
    [[ -d "${vdb_loc}/.cache" ]] || mkdir ${vdb_loc}/.cache || return 1
    > "${cfg_protect_list}"
    > "${cfg_protect_mask_list}"

    installed_pkgs=$(${PALUDIS_COMMAND} --log-level silent --list-packages --repository installed |grep "^*" |cut -d" " -f2)

    n=0
    n_end=$(wc -w <<<$installed_pkgs)
    for p in ${installed_pkgs} ; do
        n=$(( $n + 1 ))
        if [[ 0 == $(( n % 20 )) ]] ; then
            ewarn "    ${n} of ${n_end}"
        fi
        cfg_protect=$(${PALUDIS_COMMAND} --log-level silent --environment-variable ${p} CONFIG_PROTECT)
        for x in ${cfg_protect} ; do
            echo "${x}" >> "${cfg_protect_list}"
        done

        cfg_protect_mask=$(${PALUDIS_COMMAND} --log-level silent --environment-variable ${p} CONFIG_PROTECT_MASK)
        for x in ${cfg_protect_mask} ; do
            echo "${x}" >> "${cfg_protect_mask_list}"
        done
    done
fi
einfo "Updating CONFIG_PROTECT and CONFIG_PROTECT_MASK caches."

# Now, update the lists with our current values.
for x in ${CONFIG_PROTECT} ; do
    echo "${x}" >> "${cfg_protect_list}"
done

for x in ${CONFIG_PROTECT_MASK} ; do
    echo "${x}" >> "${cfg_protect_mask_list}"
done

# Finally, ensure we have no duplicates in these lists.
sort -u "${cfg_protect_list}" > "${cfg_protect_list}.$$"
mv "${cfg_protect_list}.$$" "${cfg_protect_list}"

sort -u "${cfg_protect_mask_list}" > "${cfg_protect_mask_list}.$$"
mv "${cfg_protect_mask_list}.$$" "${cfg_protect_mask_list}"