Basic Minify JS or CSS files - dotCMS

## This code has a few issues and probably shouldn't be used in production - Feel free to modify into something useful.


## VERY basic minify functionality for dotCMS
## If you're looking for something more efficient and fancier
## (that requires plugin installation), try http://geekyplugins.com/dot-cms/minifier.dot
##
## Copyright 2011 Oklahoma Christian University (Stephen Bell)
##
## -----------------------------------
## USAGE:
## -----------------------------------
##
## Put this code in a widget in a blank template (no other HTML) in an
## index.dot page in a folder (ie. /minify/index.dot)
##
##
## -----------------------------------
## JAVASCRIPT:
## -----------------------------------
##
## If your existing javascript is
## 		<script type="text/javascript" src="/project/js/stuff.js"></script>
##
## Then make you would reference this as
##		<script type="text/javascript" src="/minify?m=/project/js/stuff.js"></script>
##
##
## -----------------------------------
## CSS:
## -----------------------------------
##
## CSS works the same way as JS:
##		<link rel="stylesheet" href="/mystuff/whatever.css"/>
##
## Becomes:
## 		<link rel="stylesheet" href="/minify?m=/mystuff/whatever.css"/>
##
##
## -----------------------------------
## MULTIPLE FILES
## -----------------------------------
##
## Separate them with a comma:
## 		<script type="text/javascript" src="/minify?m=/myfolder/js/file1.js,/myfolder/js/file2.js"></script>
##
##
## -----------------------------------
## NOTES (read before using)
## -----------------------------------
##
## 1. You'll want to remove the tabs and extra line breaks from this code,
## 		and it will still leave a bit of extra white space, because velocity is "special"
## 2. Single line breaks are not taken out of JS files (though comments and other whitespace are)
## 		because of this http://bit.ly/p4MAYR, and because I can't write anything complicated
##		enough to handle that
## 3. Use at your own risk
##

#set($myDomain = "http://www.yoursite.com")

#set($query = $request.getParameter("m"))
#set($files = $query.split(","))

#set($jscount=0)
#set($csscount=0)
#set($warning=0)

#foreach($file in $files)
	#if(!$file.matches("^\/.*"))
		#set($warning = $warning + 1)
	#end
	#if($file.matches(".*\.js$"))
		#set($jscount=$jscount+1)
	#end
	#if($file.matches(".*\.css$"))
		#set($csscount=$csscount+1)
	#end
#end

#if($warning > 0)
	<p>Sorry chief, local files only.</p>
#else
	#if($csscount== $files.size() )
		#set($contenttype="css")
		$response.setContentType('text/css')
	#end

	#if($jscount== $files.size())
		#set($contenttype="js")
		$response.setContentType('application/javascript')
	#end

	#dotcache($request.getParameter("m"),60)
		#if($contenttype=="css")
			#foreach ($file in $files)
				#set($filecontents = $import.read("${myDomain}${file}"))
				#set($filecontents = $filecontents.replaceAll("\s*\/\*+([^\*]|[/s])*\*+\/\s*","")) ## Multi line comments
				#set($filecontents = $filecontents.replaceAll("\/\/.*[\n|\r]","")) ## Single line comments
				#set($filecontents = $filecontents.replaceAll("[\s]{1,9999}"," ")) ## White space
				#set($filecontents = $filecontents.replaceAll("(\{\s*)","{")) ## Spaces just inside opening curly quotes
				#set($filecontents = $filecontents.replaceAll("(\s*\})","}")) ## Spaces just inside closing curly quotes
				$filecontents
			#end
		#elseif($contenttype=="js")
			#foreach ($file in $files)
				#set($filecontents = $import.read("${myDomain}${file}"))
				#set($filecontents = $filecontents.replaceAll("\s*\/\*+([^\*]|[/s])*\*+\/\s*","")) ## Multi line comments
				#set($filecontents = $filecontents.replaceAll("\/\/.*[\n|\r]","")) ## Single line comments
				#set($filecontents = $filecontents.replaceAll("\t","")) ## All tabs
				#set($filecontents = $filecontents.replaceAll("[ ]{2,9999}","")) ## Groups of more than one space
				#set($filecontents = $filecontents.replaceAll("(\n)\n*","$1")) ## Groups of more than one space
				$filecontents
			#end
		#else
			Error: Please list files that are either all JS or all CSS
		#end
	#end
#end