Move installation scripts to install/ dir

install/gw.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+
+# https://github.com/To-da/gdub
+
+set -e
+set -u
+
+readonly REPO="https://github.com/To-da/gdub.git"
+readonly GW_PATH="$LWS/opt/gdub"
+readonly GW_BIN="$GW_PATH/bin/gw"
+readonly OPT_BIN_PATH="$LWS/opt/bin"
+
+if [[ -f "$OPT_BIN_PATH/gw" ]]; then
+  echo "gw already installed"
+  exit 0
+fi
+if [[ ! -d "$GW_PATH" ]]; then
+  git clone "$REPO" "$GW_PATH"
+fi
+if [[ ! -d "$OPT_BIN_PATH" ]]; then
+  mkdir "$OPT_BIN_PATH"
+fi
+cp "$GW_BIN" "$OPT_BIN_PATH/"
+