8 files changed, 64 insertions, 22 deletions
diff --git a/scripts/Makefile.am b/scripts/Makefile.am
index 08fc34b2..0e5619bd 100644
--- a/scripts/Makefile.am
+++ b/scripts/Makefile.am
@@ -124,6 +124,7 @@ LIBMAKEPKG_IN = \
 	libmakepkg/util/option.sh \
 	libmakepkg/util/parseopts.sh \
 	libmakepkg/util/pkgbuild.sh \
+	libmakepkg/util/schema.sh \
 	libmakepkg/util/source.sh \
 	libmakepkg/util/util.sh
 
diff --git a/scripts/libmakepkg/integrity/generate_checksum.sh.in b/scripts/libmakepkg/integrity/generate_checksum.sh.in
index 57ef46ff..63cdc4d6 100644
--- a/scripts/libmakepkg/integrity/generate_checksum.sh.in
+++ b/scripts/libmakepkg/integrity/generate_checksum.sh.in
@@ -25,6 +25,7 @@ LIBRARY=${LIBRARY:-'@libmakepkgdir@'}
 
 source "$LIBRARY/util/message.sh"
 source "$LIBRARY/util/pkgbuild.sh"
+source "$LIBRARY/util/schema.sh"
 
 generate_one_checksum() {
 	local integ=$1 arch=$2 sources numsrc indentsz idx
diff --git a/scripts/libmakepkg/integrity/verify_checksum.sh.in b/scripts/libmakepkg/integrity/verify_checksum.sh.in
index 532e0693..ec61b16d 100644
--- a/scripts/libmakepkg/integrity/verify_checksum.sh.in
+++ b/scripts/libmakepkg/integrity/verify_checksum.sh.in
@@ -25,6 +25,7 @@ LIBRARY=${LIBRARY:-'@libmakepkgdir@'}
 
 source "$LIBRARY/util/message.sh"
 source "$LIBRARY/util/pkgbuild.sh"
+source "$LIBRARY/util/schema.sh"
 
 check_checksums() {
 	local integ a
diff --git a/scripts/libmakepkg/lint_pkgbuild/variable.sh.in b/scripts/libmakepkg/lint_pkgbuild/variable.sh.in
index a975b024..512bed7b 100644
--- a/scripts/libmakepkg/lint_pkgbuild/variable.sh.in
+++ b/scripts/libmakepkg/lint_pkgbuild/variable.sh.in
@@ -25,22 +25,16 @@ LIBRARY=${LIBRARY:-'@libmakepkgdir@'}
 
 source "$LIBRARY/util/message.sh"
 source "$LIBRARY/util/pkgbuild.sh"
+source "$LIBRARY/util/schema.sh"
 
 lint_pkgbuild_functions+=('lint_variable')
 
 
 lint_variable() {
-	# TODO: refactor - similar arrays are used elsewhere
-	local array=(arch backup groups license noextract options validpgpkeys)
-	local arch_array=(checkdepends conflicts depends makedepends md5sums
-	                  optdepends provides replaces sha1sums sha224sums
-	                  sha256sums sha384sums sha512sums source)
-	local string=(changelog epoch install pkgbase pkgdesc pkgrel pkgver url)
-
 	local i a pkg out bad ret=0
 
 	# global variables
-	for i in ${array[@]} ${arch_array[@]}; do
+	for i in ${pkgbuild_schema_arrays[@]}; do
 		if declare -p $i > /dev/null 2>&1; then
 			if ! is_array $i; then
 				error "$(gettext "%s should be an array")" "$i"
@@ -52,7 +46,7 @@ lint_variable() {
 	for a in ${arch[@]}; do
 		[[ $a == "any" ]] && continue
 
-		for i in ${arch_array[@]}; do
+		for i in ${pkgbuild_schema_arch_arrays[@]}; do
 			if declare -p "${i}_${a}" > /dev/null 2>&1; then
 				if ! is_array ${i}_${a}; then
 					error "$(gettext "%s should be an array")" "${i}_${a}"
@@ -62,7 +56,7 @@ lint_variable() {
 		done
 	done
 
-	for i in ${string[@]}; do
+	for i in ${pkgbuild_schema_strings[@]}; do
 		if declare -p "$i" > /dev/null 2>&1; then
 			if is_array $i; then
 				error "$(gettext "%s should not be an array")" "$i"
@@ -73,7 +67,7 @@ lint_variable() {
 
 	# package function variables
 	for pkg in ${pkgname[@]}; do
-		for i in ${array[@]} ${arch_array[@]}; do
+		for i in ${pkgbuild_schema_arrays[@]}; do
 			if extract_function_variable "package_$pkg" $i 0 out; then
 				error "$(gettext "%s should be an array")" "$i"
 				ret=1
@@ -83,7 +77,7 @@ lint_variable() {
 		for a in ${arch[@]}; do
 			[[ $a == "any" ]] && continue
 
-			for i in ${arch_array[@]}; do
+			for i in ${pkgbuild_schema_arch_arrays[@]}; do
 				if extract_function_variable "package_$pkg" "${i}_${a}" 0 out; then
 					error "$(gettext "%s should be an array")" "${i}_${a}"
 					ret=1
@@ -91,7 +85,7 @@ lint_variable() {
 			done
 		done
 
-		for i in ${string[@]}; do
+		for i in ${pkgbuild_schema_strings[@]}; do
 			if extract_function_variable "package_$pkg" $i 1 out; then
 				error "$(gettext "%s should not be an array")" "$i"
 				ret=1
diff --git a/scripts/libmakepkg/util/meson.build b/scripts/libmakepkg/util/meson.build
index b0e829c4..229b004d 100644
--- a/scripts/libmakepkg/util/meson.build
+++ b/scripts/libmakepkg/util/meson.build
@@ -7,6 +7,7 @@ sources = [
   'option.sh.in',
   'parseopts.sh.in',
   'pkgbuild.sh.in',
+  'schema.sh.in',
   'source.sh.in',
   'util.sh.in',
 ]
diff --git a/scripts/libmakepkg/util/pkgbuild.sh.in b/scripts/libmakepkg/util/pkgbuild.sh.in
index b29229a3..0dc239d1 100644
--- a/scripts/libmakepkg/util/pkgbuild.sh.in
+++ b/scripts/libmakepkg/util/pkgbuild.sh.in
@@ -21,6 +21,8 @@
 [[ -n "$LIBMAKEPKG_UTIL_PKGBUILD_SH" ]] && return
 LIBMAKEPKG_UTIL_PKGBUILD_SH=1
 
+source "$LIBRARY/util/schema.sh"
+
 
 have_function() {
 	declare -f "$1" >/dev/null
diff --git a/scripts/libmakepkg/util/schema.sh.in b/scripts/libmakepkg/util/schema.sh.in
new file mode 100644
index 00000000..38f034e0
--- /dev/null
+++ b/scripts/libmakepkg/util/schema.sh.in
@@ -0,0 +1,49 @@
+#!/bin/bash
+#
+#   schema.sh - declare specific groups of pkgbuild variables
+#
+#   Copyright (c) 2015-2018 Pacman Development Team <pacman-dev@archlinux.org>
+#
+#   This program is free software; you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation; either version 2 of the License, or
+#   (at your option) any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+[[ -n "$LIBMAKEPKG_SCHEMA_SH" ]] && return
+LIBMAKEPKG_SCHEMA_SH=1
+
+LIBRARY=${LIBRARY:-'@libmakepkgdir@'}
+
+source "$LIBRARY/util/util.sh"
+
+
+known_hash_algos=({md5,sha{1,224,256,384,512}})
+
+pkgbuild_schema_arrays=(arch backup checkdepends conflicts depends groups
+                        license makedepends noextract optdepends options
+                        provides replaces source validpgpkeys
+                        "${known_hash_algos[@]/%/sums}")
+
+pkgbuild_schema_strings=(changelog epoch install pkgbase pkgdesc pkgrel pkgver
+                         url)
+
+pkgbuild_schema_arch_arrays=(checkdepends conflicts depends makedepends
+                             optdepends provides replaces source
+                             "${known_hash_algos[@]/%/sums}")
+
+pkgbuild_schema_package_overrides=(pkgdesc arch url license groups depends
+                                   optdepends provides conflicts replaces
+                                   backup options install changelog)
+
+readonly -a known_hash_algos pkgbuild_schema_arrays \
+	pkgbuild_schema_strings pkgbuild_schema_arch_arrays \
+	pkgbuild_schema_package_overrides
diff --git a/scripts/makepkg.sh.in b/scripts/makepkg.sh.in
index 749d074a..5606f65b 100644
--- a/scripts/makepkg.sh.in
+++ b/scripts/makepkg.sh.in
@@ -48,13 +48,6 @@ declare -r startdir="$(pwd -P)"
 
 LIBRARY=${LIBRARY:-'@libmakepkgdir@'}
 
-splitpkg_overrides=('pkgdesc' 'arch' 'url' 'license' 'groups' 'depends'
-                    'optdepends' 'provides' 'conflicts' 'replaces' 'backup'
-                    'options' 'install' 'changelog')
-readonly -a splitpkg_overrides
-
-known_hash_algos=('md5' 'sha1' 'sha224' 'sha256' 'sha384' 'sha512')
-
 # Options
 ASDEPS=0
 BUILDFUNC=0
@@ -905,7 +898,7 @@ check_build_status() {
 
 backup_package_variables() {
 	local var
-	for var in ${splitpkg_overrides[@]}; do
+	for var in ${pkgbuild_schema_package_overrides[@]}; do
 		local indirect="${var}_backup"
 		eval "${indirect}=(\"\${$var[@]}\")"
 	done
@@ -913,7 +906,7 @@ backup_package_variables() {
 
 restore_package_variables() {
 	local var
-	for var in ${splitpkg_overrides[@]}; do
+	for var in ${pkgbuild_schema_package_overrides[@]}; do
 		local indirect="${var}_backup"
 		if [[ -n ${!indirect} ]]; then
 			eval "${var}=(\"\${$indirect[@]}\")"