1 files changed, 72 insertions, 0 deletions
diff --git a/config b/config
new file mode 100755
index 0000000..4cddfcd
--- /dev/null
+++ b/config
@@ -0,0 +1,72 @@
+#! /bin/sh
+
+set -e
+
+TARGET_PKGS='binutils libbfd-dev'
+
+main()
+{
+	case "${1}" in
+		clean)
+			clean
+			;;
+		*)
+			get_config_values
+			configure_build
+			;;
+	esac
+}
+
+msg()
+{
+	printf 'binutils config: '
+	printf "${@}"
+	printf '\n'
+}
+
+get_config_values()
+{
+	if [ -z "${PKG_TARGET_ARCH}" ]; then
+		msg 'Error: No target architecture specified.' >&2
+		exit 1
+	fi
+
+	# FIXME: Lookup GNU system type.
+	export PKG_TARGET_ARCH_GNU=arm-cortex_a8-linux-gnu
+}
+
+configure_build()
+{
+	# Generate a sed script to edit files.
+	_ss=
+	for _name in TARGET_ARCH TARGET_ARCH_GNU; do
+		_ss="${_ss}s&@PKG_${_name}@&$(eval echo \$\{PKG_${_name}\})&;"
+	done
+
+	# Write a build makefile with the configuration values.
+	sed "${_ss}" build.in >build
+	chmod a+x build
+	msg '"build" file generated.'
+
+	# Write metadata for <pkgbase>-<target> packages.
+	for _pkg in ${TARGET_PKGS}; do
+		mkdir -p "${_pkg}-${PKG_TARGET_ARCH}.pkg"
+		sed "${_ss}" "${_pkg}.pkg.in/control" \
+			>"${_pkg}-${PKG_TARGET_ARCH}.pkg/control"
+		msg 'Metadata for package "%s" generated.' \
+			"${_pkg}-${PKG_TARGET_ARCH}"
+	done
+}
+
+clean()
+{
+	# Remove generated build makefile.
+	rm -f build
+
+	# Remove generated metadata for <pkgbase>-<target> packages.
+	for _pkg in ${TARGET_PKGS}; do
+		rm -Rf "${_pkg}"-*-*-*.pkg/
+	done
+}
+
+main "${@}"