1 files changed, 191 insertions, 0 deletions
diff --git a/scripts/libmakepkg/util/pkgbuild.sh.in b/scripts/libmakepkg/util/pkgbuild.sh.in
new file mode 100644
index 00000000..2423a83d
--- /dev/null
+++ b/scripts/libmakepkg/util/pkgbuild.sh.in
@@ -0,0 +1,191 @@
+#!/bin/bash
+#
+#   pkgbuild.sh - functions to extract information from PKGBUILD files
+#
+#   Copyright (c) 2014-2015 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_PKGBUILD_SH" ]] && return
+LIBMAKEPKG_UTIL_PKGBUILD_SH=1
+
+
+have_function() {
+	declare -f "$1" >/dev/null
+}
+
+grep_function() {
+	{ declare -f "$1" || declare -f package; } 2>/dev/null | grep -E "$2"
+}
+
+array_build() {
+	local dest=$1 src=$2 i keys values
+
+	# it's an error to try to copy a value which doesn't exist.
+	declare -p "$2" &>/dev/null || return 1
+
+	# Build an array of the indicies of the source array.
+	eval "keys=(\"\${!$2[@]}\")"
+
+	# Clear the destination array
+	eval "$dest=()"
+
+	# Read values indirectly via their index. This approach gives us support
+	# for associative arrays, sparse arrays, and empty strings as elements.
+	for i in "${keys[@]}"; do
+		values+=("printf -v '$dest[$i]' %s \"\${$src[$i]}\";")
+	done
+
+	eval "${values[*]}"
+}
+
+extract_global_variable() {
+	# $1: variable name
+	# $2: multivalued
+	# $3: name of output var
+
+	local attr=$1 isarray=$2 outputvar=$3 ref
+
+	if (( isarray )); then
+		array_build ref "$attr"
+		[[ ${ref[@]} ]] && array_build "$outputvar" "$attr"
+	else
+		[[ ${!attr} ]] && printf -v "$outputvar" %s "${!attr}"
+	fi
+}
+
+extract_function_variable() {
+	# $1: function name
+	# $2: variable name
+	# $3: multivalued
+	# $4: name of output var
+
+	local funcname=$1 attr=$2 isarray=$3 outputvar=$4 attr_regex= decl= r=1
+
+	if (( isarray )); then
+		printf -v attr_regex '^[[:space:]]* %s\+?=\(' "$2"
+	else
+		printf -v attr_regex '^[[:space:]]* %s\+?=[^(]' "$2"
+	fi
+
+	while read -r; do
+		# strip leading whitespace and any usage of declare
+		decl=${REPLY##*([[:space:]])}
+		eval "${decl/#$attr/$outputvar}"
+
+		# entering this loop at all means we found a match, so notify the caller.
+		r=0
+	done < <(grep_function "$funcname" "$attr_regex")
+
+	return $r
+}
+
+get_pkgbuild_attribute() {
+	# $1: package name
+	# $2: attribute name
+	# $3: multivalued
+	# $4: name of output var
+
+	local pkgname=$1 attrname=$2 isarray=$3 outputvar=$4
+
+	printf -v "$outputvar" %s ''
+
+	if [[ $pkgname ]]; then
+		extract_global_variable "$attrname" "$isarray" "$outputvar"
+		extract_function_variable "package_$pkgname" "$attrname" "$isarray" "$outputvar"
+	else
+		extract_global_variable "$attrname" "$isarray" "$outputvar"
+	fi
+}
+
+##
+#  usage : get_full_version()
+# return : full version spec, including epoch (if necessary), pkgver, pkgrel
+##
+get_full_version() {
+	if (( epoch > 0 )); then
+		printf "%s\n" "$epoch:$pkgver-$pkgrel"
+	else
+		printf "%s\n" "$pkgver-$pkgrel"
+	fi
+}
+
+##
+#  usage : get_pkg_arch( [$pkgname] )
+# return : architecture of the package
+##
+get_pkg_arch() {
+	if [[ -z $1 ]]; then
+		if [[ $arch = "any" ]]; then
+			printf "%s\n" "any"
+		else
+			printf "%s\n" "$CARCH"
+		fi
+	else
+		local arch_override
+		get_pkgbuild_attribute "$1" arch 1 arch_override
+		(( ${#arch_override[@]} == 0 )) && arch_override=("${arch[@]}")
+		if [[ $arch_override = "any" ]]; then
+			printf "%s\n" "any"
+		else
+			printf "%s\n" "$CARCH"
+		fi
+	fi
+}
+
+print_all_package_names() {
+	local version=$(get_full_version)
+	local architecture pkg opts a
+	for pkg in ${pkgname[@]}; do
+		get_pkgbuild_attribute "$pkg" 'arch' 1 architecture
+		get_pkgbuild_attribute "$pkg" 'options' 1 opts
+		for a in ${architecture[@]}; do
+			printf "%s-%s-%s\n" "$pkg" "$version" "$a"
+			if in_opt_array "debug" ${opts[@]} && in_opt_array "strip" ${opts[@]}; then
+				printf "%s-%s-%s-%s\n" "$pkg" "@DEBUGSUFFIX@" "$version" "$a"
+			fi
+		done
+	done
+}
+
+get_all_sources() {
+	local aggregate l a
+
+	if array_build l 'source'; then
+		aggregate+=("${l[@]}")
+	fi
+
+	for a in "${arch[@]}"; do
+		if array_build l "source_$a"; then
+			aggregate+=("${l[@]}")
+		fi
+	done
+
+	array_build "$1" "aggregate"
+}
+
+get_all_sources_for_arch() {
+	local aggregate l
+
+	if array_build l 'source'; then
+		aggregate+=("${l[@]}")
+	fi
+
+	if array_build l "source_$CARCH"; then
+		aggregate+=("${l[@]}")
+	fi
+
+	array_build "$1" "aggregate"
+}