data: validate and repair Japanese dictionaries

map/grabskkdicts

@@ -1,2 +1,20 @@
-#!/bin/rc
-git/clone https://github.com/skk-dev/dict skkdicts
+#!/bin/sh
+set -eu
+
+repo=https://github.com/skk-dev/dict.git
+dest=${1:-skkdicts}
+revision=${2:-}
+
+if [ "$#" -gt 2 ] || [ -z "$dest" ]; then
+	echo "usage: $0 [destination [revision]]" >&2
+	exit 2
+fi
+if [ -e "$dest" ]; then
+	echo "$0: destination already exists: $dest" >&2
+	exit 1
+fi
+
+git clone "$repo" "$dest"
+if [ -n "$revision" ]; then
+	git -C "$dest" checkout --detach "$revision"
+fi