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https://github.com/bleargh45/apache2-filter-minifier-javascript

JavaScript minifying output filter for mod_perl
https://github.com/bleargh45/apache2-filter-minifier-javascript

apache javascript-minifier minification minify-javascript mod-perl

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JavaScript minifying output filter for mod_perl

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README

          

# NAME

Apache2::Filter::Minifier::JavaScript - JavaScript minifying output filter for mod\_perl

# SYNOPSIS

```perl

PerlOutputFilterHandler Apache2::Filter::Minifier::JavaScript

# if you need to supplement MIME-Type list
PerlSetVar JsMimeType text/json

# if you want to explicitly specify the minifier to use
#PerlSetVar JsMinifier JavaScript::Minifier::XS
#PerlSetVar JsMinifier JavaScript::Minifier
#PerlSetVar JsMinifier MY::Minifier::function

```

# DESCRIPTION

`Apache2::Filter::Minifier::JavaScript` is a Mod\_perl2 output filter which
minifies JavaScript using `JavaScript::Minifier` or
`JavaScript::Minifier::XS`.

Only JavaScript documents are minified, all others are passed through
unaltered. `Apache2::Filter::Minifier::JavaScript` comes with a list of
several known acceptable MIME-Types for JavaScript documents, but you can
supplement that list yourself by setting the `JsMimeType` PerlVar
appropriately (use `PerlSetVar` for a single new MIME-Type, or `PerlAddVar`
when you want to add multiple MIME-Types).

Given a choice, using `JavaScript::Minifier::XS` is preferred over
`JavaScript::Minifier`, but we'll use whichever one you've got available. If
you want to explicitly specify which minifier you want to use, set the
`JsMinifier` PerlVar to the name of the package/function that implements the
minifier. Minification functions are expected to accept a single parameter
(the JavaScript to be minified) and to return the minified JavaScript on
completion. If you specify a package name, we look for a `minify()` function
in that package.

## Caching

Minification does require additional CPU resources, and it is recommended that
you use some sort of cache in order to keep this to a minimum.

Being that you're already running Apache2, though, here's some examples of a
mod\_cache setup:

Disk Cache

```
# Cache root directory
CacheRoot /path/to/your/disk/cache
# Enable cache for "/js/" location
CacheEnable disk /js/
```

Memory Cache

```
# Cache size: 4 MBytes
MCacheSize 4096
# Min object size: 128 Bytes
MCacheMinObjectSize 128
# Max object size: 512 KBytes
MCacheMaxObjectSize 524288
# Enable cache for "/js/" location
CacheEnable mem /js/
```

# METHODS

- handler($filter)

JavaScript minification output filter.

# AUTHOR

Graham TerMarsch (cpan@howlingfrog.com)

Many thanks to Geoffrey Young for writing `Apache::Clean`, from which several
things were lifted. :)

# COPYRIGHT

Copyright (C) 2007, Graham TerMarsch. All Rights Reserved.

This is free software; you can redistribute it and/or modify it under the same
license as Perl itself.

# SEE ALSO

- [JavaScript::Minifier](https://metacpan.org/pod/JavaScript%3A%3AMinifier)
- [JavaScript::Minifier::XS](https://metacpan.org/pod/JavaScript%3A%3AMinifier%3A%3AXS)
- [Apache2::Filter::Minifier::CSS](https://metacpan.org/pod/Apache2%3A%3AFilter%3A%3AMinifier%3A%3ACSS)
- [Apache::Clean](https://metacpan.org/pod/Apache%3A%3AClean)