A tiny plugin for adding timestamp to filenames.

This is the Craft 3.x version of Stamp, for the Craft 2.x version see the master branch.

This plugin requires Craft CMS 3.0.0 or later.

To install the plugin, follow these instructions.

1. Open your terminal and go to your Craft project:

    cd /path/to/project
   

2. Then tell Composer to load the plugin:

    composer require aelvan/stamp
   

3. In the Control Panel, go to Settings → Plugins and click the “Install” button for Stamp.

Use it like this:

<script src="{{ craft.stamp.er('/assets/build/js/scripts.js') }}"></script> 

Which results in:

<script src="/assets/build/js/scripts.1399647655.js"></script>

The er() method takes a second parameter for setting the format of the output. Possible values are file (default), folder, query and tsonly.

Example with folder:

<script src="{{ craft.stamp.er('/assets/build/js/scripts.js', 'folder') }}"></script> 

Result:

<script src="/assets/build/js/1399647655/scripts.js"></script>

Example with query:

<script src="{{ craft.stamp.er('/assets/build/js/scripts.js', 'query') }}"></script> 

Result:

<script src="/assets/build/js/scripts.js?ts=1399647655"></script>

Example with only:

Timestamp is: {{ craft.stamp.er('/assets/build/js/scripts.js', 'only') }} 

Result:

Timestamp is: 1399647655

The craft.stamp.er() method takes a third parameter for setting the algorithm of the output. Possible values are ts (default), and hash.

ts stands for timestamp and behaves as shown above. hash gets the CRC32 checksum of the file instead of the timestamp. It's useful for cases when you need your cache busting to be fully deterministic.

For example:

<script src="{{ craft.stamp.er('/assets/build/js/scripts.js', 'file', 'hash') }}"></script>

Result:

<script src="/assets/build/js/scripts.2031312059.js"></script>

For methods file and folder you probably want to do some url rewriting. Below are some examples of how this can be done, adjust as needed for your server and project setup.

Apache:

# Rewrites asset versioning, ie styles.1399647655.css to styles.css.
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.+)\.(\d{10})\.(js|css)$ $1.$3 [L]  # /assets/build/js/scripts.1399647655.js
# RewriteRule ^(.+)/(\d{10})/(.+)\.(js|css)$ $1/$3.$4 [L]  # /assets/build/js/1399647655/scripts.js

nginx:

location @assetversioning {
    rewrite ^(.+)\.[0-9]+\.(css|js)$ $1.$2 last;  # /assets/build/js/scripts.1399647655.js
    # rewrite ^(.+)/([0-9]+)/(.+)\.(js|css)$ $1/$3.$4 last;  # /assets/build/js/1399647655/scripts.js
}    

location ~* ^/assets/.*\.(?:css|js)$ {
    try_files $uri @assetversioning;
    expires max;
    add_header Pragma public;
    add_header Cache-Control "public, must-revalidate, proxy-revalidate";
}

Stamp needs to know the public document root to know where your files are located. By default Stamp will use @webroot, but on some server configurations this is not the correct path. You can configure the path by creating a config file called stamp.php in your config folder, and adding the publicRoot setting.

'publicRoot' => '/path/to/website/public/',

See CHANGELOG.md.