1 files changed, 59 insertions, 0 deletions
diff --git a/init-functions b/init-functions
new file mode 100644
index 0000000..d3ce738
--- /dev/null
+++ b/init-functions
@@ -0,0 +1,59 @@
+# functions used by init.sh
+
+announce () {
+	# use colours if available
+	echo
+	if test -t 1; then
+		echo -en "\\033[32m"
+		echo -n "$1"
+		echo -e "\\033[0m"
+	else
+		echo "[[ $1 ]]"
+
+	fi
+}
+
+do_del () {
+	#echo "delete $1?"
+	[ -d "$1" ] && rm -rfI -- "$1" || echo "$1 not present"
+}
+
+do_wget () {
+	# usage: $1 = action, $2 = target dir, $2..n = actual arguments to wget
+	if [ $# -le 2 ]; then
+		echo "do_wget: not enough arguments"
+		exit 2
+	fi
+	if [ "$(dirname $2)" == "." ]; then
+		toplevel="$2"
+	else
+		toplevel="$(dirname $2)"
+	fi
+	announce "$1 $toplevel (wget)"
+	
+	if [ "$1" == "get" ]; then
+		wget -nv -P "$2" "${@:3}" 2>&1
+	else
+		do_del "$toplevel"
+	fi
+	ret=$?
+	[ $ret -ne 0 ] && announce "action failed with exit status $?"
+	return $ret
+}
+
+do_git_submodule () {
+	# usage: $1 = action, $2..n submodules
+	ret=0
+	for submodule in "${@:2}"; do
+		announce "$1 $submodule (git submodule)"
+		if [ "$1" == "get" ]; then
+			git submodule update --init "$submodule" 2>&1
+		else
+			do_del "$submodule"
+		fi
+		ret=$?
+		[ $ret -ne 0 ] && break
+	done
+	[ $ret -ne 0 ] && announce "action failed with exit status $?"
+	return $ret
+}