build: replace minipack shell script with sed commands

Makefile

@@ -33,10 +33,11 @@ bindata.go: client client/*
 	cp -r ./client ./clientpack
 	( echo ';(function() {' ; cat clientpack/dcwebui.js ; echo '})();' ) | uglifyjs -o clientpack/dcwebui.min.js -c -m --ie8
 	lessc --clean-css clientpack/dcwebui.css clientpack/dcwebui.min.css
+	#./minipack style dcwebui.css clientpack/dcwebui.min.css
 	cat clientpack/index.htm \
-		| ./minipack style dcwebui.css clientpack/dcwebui.min.css \
-		| ./minipack script dcwebui.js clientpack/dcwebui.min.js \
-		| ./minipack script socket.io-1.7.2.js clientpack/socket.io-1.7.2.js \
+		| sed -e '/dcwebui.css/{i <style>' -e 'r clientpack/dcwebui.min.css' -e 'a </style>' -e 'd}' \
+		| sed -e '/dcwebui.js/{i <script>' -e 'r clientpack/dcwebui.min.js' -e 'a </script>' -e 'd}' \
+		| sed -e '/socket.io-1.7.2.js/{i <script>' -e 'r clientpack/socket.io-1.7.2.js' -e 'a </script>' -e 'd}' \
 		> clientpack/index.packed.htm
 	mv clientpack/index.packed.htm clientpack/index.htm
 	html-minifier --collapse-whitespace -o clientpack/index.min.htm clientpack/index.htm

minipack

@@ -1,22 +0,0 @@
-#!/bin/bash
-
-set -eu
-
-embed() {
-	local tag="$1"
-	local find="$2"
-	local sourcefile="$3"
-	
-	while IFS= read -r line ; do 
-		if [[ "${line}" =~ "${find}" ]] ; then
-			echo -n "<${tag}>"
-			cat "${sourcefile}"
-			echo -n "</${tag}>"
-		else
-			echo "${line}"
-		fi
-	done
-	
-}
-
-embed "$@"