Refactoring again :-)

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "uglifyjs"]
+	path = uglifyjs
+	url = https://github.com/mishoo/UglifyJS.git

install.sh

@@ -0,0 +1,39 @@
+#!/bin/sh -eu
+
+myname="$(readlink -ev "$0")"
+compiler='uglifyjs/bin/uglifyjs'
+
+SOURCES='cfg css img lib tpl index.php'
+JSDIR='js'
+
+if [ "$#" -eq 0 ]; then
+	printf 'Usage: %s <destdir>\n' "${0##*/}"
+	exit
+fi
+
+destdir="$1"
+shift
+
+if [ ! -d "$destdir" ]; then
+	printf 'Error: %s: Not directory\n' "$destdir"
+	exit 1
+fi
+destdir="$(readlink -ev "$destdir")"
+
+cd "${myname%/*}"
+cp -aurt "$destdir" -- $SOURCES
+
+mkdir -p -- "$destdir/js"
+for src in "$JSDIR"/*.js; do
+	[ -f "$src" ] ||
+		continue
+	printf 'Processing %s ... ' "$src"
+
+	rc='done'
+	$compiler -nc -c -o "$destdir/js/${src##*/}" "$src" || rc='fail'
+
+	printf '%s\n' "$rc"
+
+	[ "$rc" = 'done' ] ||
+		exit 1
+done