Dynamic Cache Busting

[hnla]

I use a few techniques for working file cache headers or file query strings for versioning, looking at bp enqueue styles while working on new bp child theme I decided to add a variation of one for getlastmod()on files to replace the cache busting version variable.

I've added it to bp functions for the fun of it and attached as a patch.

It simply adds into the WP register function position for versioning string a function that passes the file name through to be parsed though php filemtime() function and date() returning a last moded string.

Added it to all stylesheets bar the child one as wasn't sure without testing what to pass through.

[hnla]

Add function to dynamically apply file get last mod date/time as ver string

[boonebgorges]

Let's have a look at this for 1.6. It looks clever as a general technique.

[DJPaul]

Wouldn't touching every enqueued file like this be very slow?

[boonebgorges]

Wouldn't touching every enqueued file like this be very slow?

Good point. This should be part of our deployment scripts (currently fictional!) rather than happening at runtime.

[hnla]

Fair point, shame though, I'll have to run a few load time tests.