Split check_software() to libmakepkg

This opens the door for third parties who provide extensions to
libmakepkg to supply scripts that confirm the presence of their
dependant executables.

Signed-off-by: Que Quotion <quequotion@gmail.com>
Signed-off-by: Allan McRae <allan@archlinux.org>

1 files changed, 42 insertions, 0 deletions

diff --git a/scripts/libmakepkg/executable/checksum.sh.in b/scripts/libmakepkg/executable/checksum.sh.in
new file mode 100644
index 00000000..9783d4ee
--- /dev/null
+++ b/scripts/libmakepkg/executable/checksum.sh.in
@@ -0,0 +1,42 @@
+#!/usr/bin/bash
+#
+#   checksum.sh - Confirm presence of binaries for checksum operations
+#
+#   Copyright (c) 2016-2018 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 "$LIBMAKEPKG_EXECUTABLE_CHECKSUM_SH" ]] && return
+LIBMAKEPKG_EXECUTABLE_CHECKSUM_SH=1
+
+LIBRARY=${LIBRARY:-'@libmakepkgdir@'}
+
+
+executable_functions+=('executable_checksum')
+
+executable_checksum() {
+	if (( GENINTEG || ! SKIPCHECKSUMS )); then
+		local integlist
+		IFS=$'\n' read -rd '' -a integlist < <(get_integlist)
+
+		local integ
+		for integ in "${integlist[@]}"; do
+			if ! type -p "${integ}sum" >/dev/null; then
+				error "$(gettext "Cannot find the %s binary required for source file checksums operations.")" "${integ}sum"
+				return 1
+			fi
+		done
+	fi
+}