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-rw-r--r--scripts/libmakepkg/util/option.sh108
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diff --git a/scripts/libmakepkg/util/option.sh b/scripts/libmakepkg/util/option.sh
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+#!/bin/bash
+#
+# option.sh - functions to test if build/packaging options are enabled
+#
+# Copyright (c) 2009-2015 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
+}
+
+
+##
+# 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() {
+ in_opt_array "$1" ${options[@]}
+ case $? in
+ 0) # assert enabled
+ [[ $2 = y ]]
+ return ;;
+ 1) # assert disabled
+ [[ $2 = n ]]
+ return
+ esac
+
+ # fall back to makepkg.conf options
+ in_opt_array "$1" ${OPTIONS[@]}
+ case $? in
+ 0) # assert enabled
+ [[ $2 = y ]]
+ return ;;
+ 1) # assert disabled
+ [[ $2 = n ]]
+ return
+ esac
+
+ # not found
+ return 127
+}
+
+
+##
+# 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() {
+ in_opt_array "$1" ${BUILDENV[@]}
+ case $? in
+ 0) # assert enabled
+ [[ $2 = "y" ]]
+ return ;;
+ 1) # assert disabled
+ [[ $2 = "n" ]]
+ return ;;
+ esac
+
+ # not found
+ return 127
+}