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#!/bin/bash
#
# generate_checksum.sh - functions for generating source checksums
#
# Copyright (c) 2014-2018 Pacman Development Team <pacman-dev@archlinux.org>
#
# This program 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.
#
# This program 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, see <http://www.gnu.org/licenses/>.
#
[[ -n "$LIBMAKEPKG_INTEGRITY_GENERATE_CHECKSUM_SH" ]] && return
LIBMAKEPKG_INTEGRITY_GENERATE_CHECKSUM_SH=1
LIBRARY=${LIBRARY:-'@libmakepkgdir@'}
source "$LIBRARY/util/message.sh"
source "$LIBRARY/util/pkgbuild.sh"
generate_one_checksum() {
local integ=$1 arch=$2 sources numsrc indentsz idx
if [[ $arch ]]; then
array_build sources "source_$arch"
else
array_build sources 'source'
fi
numsrc=${#sources[*]}
if (( numsrc == 0 )); then
return
fi
if [[ $arch ]]; then
printf "%ssums_%s=(%n" "$integ" "$arch" indentsz
else
printf "%ssums=(%n" "$integ" indentsz
fi
for (( idx = 0; idx < numsrc; ++idx )); do
local netfile=${sources[idx]}
local proto sum
proto="$(get_protocol "$netfile")"
case $proto in
bzr*|git*|hg*|svn*)
sum="SKIP"
;;
*)
if [[ ${netfile%%::*} != *.@(sig?(n)|asc) ]]; then
local file
file="$(get_filepath "$netfile")" || missing_source_file "$netfile"
sum="$("${integ}sum" "$file")"
sum=${sum%% *}
else
sum="SKIP"
fi
;;
esac
# indent checksum on lines after the first
printf "%*s%s" $(( idx ? indentsz : 0 )) '' "'$sum'"
# print a newline on lines before the last
(( idx < (numsrc - 1) )) && echo
done
echo ")"
}
generate_checksums() {
msg "$(gettext "Generating checksums for source files...")" >&2
local integlist
if (( $# == 0 )); then
IFS=$'\n' read -rd '' -a integlist < <(get_integlist)
else
integlist=("$@")
fi
local integ
for integ in "${integlist[@]}"; do
if ! in_array "$integ" "${known_hash_algos[@]}"; then
error "$(gettext "Invalid integrity algorithm '%s' specified.")" "$integ"
exit 1 # $E_CONFIG_ERROR
fi
generate_one_checksum "$integ"
for a in "${arch[@]}"; do
generate_one_checksum "$integ" "$a"
done
done
}
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