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The files in the /min/ directory represent the default Minify setup designed to ease
integration with your site. This app will combine and minify your Javascript or
CSS files and serve them with HTTP compression and cache headers.

RECOMMENDED

It's recommended to edit /min/config.php to set $min_cachePath to a writeable
(by PHP) directory on your system. This will improve performance.

GETTING STARTED

The quickest way to get started is to use the Minify URI Builder application
on your website: http://example.com/min/builder/

MINIFYING A SINGLE FILE

Let's say you want to serve this file:
  http://example.com/wp-content/themes/default/default.css

Here's the "Minify URL" for this file:
  http://example.com/min/?f=wp-content/themes/default/default.css

In other words, the "f" argument is set to the file path from root without the
initial "/". As CSS files may contain relative URIs, Minify will automatically
"fix" these by rewriting them as root relative.

COMBINING MULTIPLE FILES IN ONE DOWNLOAD

Separate the paths given to "f" with commas.

Let's say you have CSS files at these URLs:
  http://example.com/scripts/jquery-1.2.6.js
  http://example.com/scripts/site.js

You can combine these files through Minify by requesting this URL:
  http://example.com/min/?f=scripts/jquery-1.2.6.js,scripts/site.js

SIMPLIFYING URLS WITH A BASE PATH

If you're combining files that share the same ancestor directory, you can use
the "b" argument to set the base directory for the "f" argument. Do not include
the leading or trailing "/" characters.

E.g., the following URLs will serve the exact same content:
  http://example.com/min/?f=scripts/jquery-1.2.6.js,scripts/site.js,scripts/home.js
  http://example.com/min/?b=scripts&f=jquery-1.2.6.js,site.js,home.js

MINIFY URLS IN HTML

In HTML files, don't forget to replace any "&" characters with "&amp;".

SPECIFYING ALLOWED DIRECTORIES

By default, Minify will serve any *.css/*.js files within the DOCUMENT_ROOT. If
you'd prefer to limit Minify's access to certain directories, set the
$min_serveOptions['minApp']['allowDirs'] array in config.php. E.g. to limit
to the /js and /themes/default directories, use:

$min_serveOptions['minApp']['allowDirs'] = array('//js', '//themes/default');

GROUPS: NICER URLS

For nicer URLs, edit groupsConfig.php to pre-specify groups of files
to be combined under preset keys. E.g., here's an example configuration in
groupsConfig.php:

return array(
    'js' => array('//js/Class.js', '//js/email.js')
);

This pre-selects the following files to be combined under the key "js":
  http://example.com/js/Class.js
  http://example.com/js/email.js

You can now serve these files with this simple URL:
  http://example.com/min/?g=js

GROUPS: SPECIFYING FILES OUTSIDE THE DOC_ROOT

In the groupsConfig.php array, the "//" in the file paths is a shortcut for
the DOCUMENT_ROOT, but you can also specify paths from the root of the filesystem
or relative to the DOC_ROOT:

return array(
    'js' => array(
        '//js/file.js'            // file within DOC_ROOT
        ,'//../file.js'           // file in parent directory of DOC_ROOT
        ,'C:/Users/Steve/file.js' // file anywhere on filesystem
    )
);

COMBINE MULTIPLE GROUPS AND FILES IN ONE URL

E.g.: http://example.com/min/?g=js&f=more/scripts.js

Separate group keys with commas:
  http://example.com/min/?g=baseCss,css1&f=moreStyles.css

FAR-FUTURE EXPIRES HEADERS

Minify can send far-future (one year) Expires headers. To enable this you must
add a number or the parameter "v" to the querystring (e.g. /min/?g=js&1234 or
/min/?g=js&v=1234) and alter it whenever a source file is changed. If you have a
build process you can use a build/source control revision number.

You can alternately use the utility function Minify_getUri() to get a "versioned"
Minify URI for use in your HTML. E.g.:

<?php
require $_SERVER['DOCUMENT_ROOT'] . '/min/utils.php';

$jsUri = Minify_getUri('js'); // a key in groupsConfig.php
echo "<script src='{$jsUri}'></script>";

$cssUri = Minify_getUri(array(
     '//css/styles1.css'
    ,'//css/styles2.css'
)); // a list of files
echo "<link rel=stylesheet href='{$cssUri}'>";

STORING CONFIG FILES OUTSIDE THE MINIFY DIRECTORY

It is possible to store config files (min/config.php, min/config-test.php,
min/groupsConfig.php) in a custom directory outside the Minify directory. This is
useful if you wish to include Minify as an external dependency inside another
project via SVN external or Git submodule inclusion.

For example, let's assume you have a Minify directory "min" in your site root. Then
you could create a new directory called "min-configs" in the site root. Copy any
config files you wish to modify to "min-configs", and modify as desired.

Then create a new file, for example "min.php" in your site root. The contents of
this file could look like this:

<?php
$customConfigDirectory = dirname(__FILE__) . '/min-configs';
$min_customConfigPaths = array(
    'base'   => $customConfigDirectory . '/config.php',
    'test'   => $customConfigDirectory . '/config-test.php',
    'groups' => $customConfigDirectory . '/groupsConfig.php'
);

include_once 'min/index.php';

You would then reference min.php in your JS and CSS links instead of min/index.php.

This method will affect those using the Minify_getUri() function. You will need
to add options to calls to that function, e.g.:

<?php
require $_SERVER['DOCUMENT_ROOT'] . '/min/utils.php';

$jsUri = Minify_getUri('//js/file.js', array('minAppUri' => '/min.php'));
echo "<script src='{$jsUri}'></script>";

DEBUG MODE

In debug mode, instead of compressing files, Minify sends combined files with
comments prepended to each line to show the line number in the original source
file. To enable this, set $min_allowDebugFlag to true in config.php and append
"&debug=1" to your URIs. E.g. /min/?f=script1.js,script2.js&debug=1

Known issue: files with comment-like strings/regexps can cause problems in this mode.

BYPASSING MINIFICATION

See the $min_concatOnly option in config.php.

QUESTIONS?

http://groups.google.com/group/minify