1 files changed, 85 insertions, 0 deletions
diff --git a/scripts/libmakepkg/util/util.sh.in b/scripts/libmakepkg/util/util.sh.in
new file mode 100644
index 00000000..f9f1c200
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+++ b/scripts/libmakepkg/util/util.sh.in
@@ -0,0 +1,85 @@
+#!/bin/bash
+#
+#   util.sh - general utility functions
+#
+#   Copyright (c) 2006-2016 Pacman Development Team <pacman-dev@archlinux.org>
+#   Copyright (c) 2002-2006 by Judd Vinet <jvinet@zeroflux.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_UTIL_SH" ]] && return
+LIBMAKEPKG_UTIL_UTIL_SH=1
+
+
+##
+#  usage : in_array( $needle, $haystack )
+# return : 0 - found
+#          1 - not found
+##
+in_array() {
+	local needle=$1; shift
+	local item
+	for item in "$@"; do
+		[[ $item = "$needle" ]] && return 0 # Found
+	done
+	return 1 # Not Found
+}
+
+# tests if a variable is an array
+is_array() {
+	local v=$1
+	local ret=1
+
+	# this function requires extglob - save current options to restore later
+	local shellopts=$(shopt -p)
+	shopt -s extglob
+
+	if [[ $(declare -p "$v") == declare\ -*([[:alnum:]])a*([[:alnum:]])\ * ]]; then
+		ret=0
+	fi
+
+	eval "$shellopts"
+	return $ret
+}
+
+# Canonicalize a directory path if it exists
+canonicalize_path() {
+	local path="$1";
+
+	if [[ -d $path ]]; then
+		(
+			cd_safe "$path"
+			pwd -P
+		)
+	else
+		printf "%s\n" "$path"
+	fi
+}
+
+dir_is_empty() {
+	(
+		shopt -s dotglob nullglob
+		files=("$1"/*)
+		(( ${#files} == 0 ))
+	)
+}
+
+cd_safe() {
+	if ! cd "$1"; then
+		error "$(gettext "Failed to change to directory %s")" "$1"
+		plain "$(gettext "Aborting...")"
+		exit 1
+	fi
+}