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#!/bin/bash
#
# option.sh - functions to test if build/packaging options are enabled
#
# Copyright (c) 2009-2019 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_UTIL_OPTION_SH" ]] && return
LIBMAKEPKG_UTIL_OPTION_SH=1
##
# usage : in_opt_array( $needle, $haystack )
# return : 0 - enabled
# 1 - disabled
# 127 - not found
##
in_opt_array() {
local needle=$1; shift
local i opt
for (( i = $#; i > 0; i-- )); do
opt=${!i}
if [[ $opt = "$needle" ]]; then
# enabled
return 0
elif [[ $opt = "!$needle" ]]; then
# disabled
return 1
fi
done
# not found
return 127
}
##
# usage : check_opt_array( $option, $expected_val, $haystack )
# return : 0 - matches expected
# 1 - does not match expected
# 127 - not found
##
check_opt_array() {
local option=$1 expected=$2; shift 2
in_opt_array "$option" "$@"
case $? in
0) # assert enabled
[[ $expected = y ]]
return ;;
1) # assert disabled
[[ $expected = n ]]
return ;;
esac
# not found
return 127
}
##
# Checks to see if options are present in makepkg.conf or PKGBUILD;
# PKGBUILD options always take precedence.
#
# usage : check_option( $option, $expected_val )
# return : 0 - matches expected
# 1 - does not match expected
# 127 - not found
##
check_option() {
check_opt_array "$@" "${OPTIONS[@]}" "${options[@]}"
}
##
# Check if option is present in BUILDENV
#
# usage : check_buildenv( $option, $expected_val )
# return : 0 - matches expected
# 1 - does not match expected
# 127 - not found
##
check_buildenv() {
check_opt_array "$@" "${BUILDENV[@]}"
}
##
# Checks to see if options are present in BUILDENV or PKGBUILD;
# PKGBUILD options always take precedence.
#
# usage : check_buildoption( $option, $expected_val )
# return : 0 - matches expected
# 1 - does not match expected
# 127 - not found
##
check_buildoption() {
check_opt_array "$@" "${BUILDENV[@]}" "${options[@]}"
}
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