[Phpmyadmin-devel] Concatenating js files

Rouslan Placella rouslan at placella.com
Tue Dec 18 17:31:57 CET 2012

On 12/18/2012 03:57 PM, Piotr Przybylski wrote:
> 2012/12/18 Rouslan Placella <rouslan at placella.com
> <mailto:rouslan at placella.com>>
>     Hi all,
>     I've written a patch[0] that will concatenate js files on the server
>     side before sending them to the client. This will reduce the number of
>     http requests for js files to one per page. So, effectively, there will
>     be one request for js files when a user first loads a pma page and
>     subsequently there will 0 or 1 request (depending if we already have the
>     needed js file already loaded client side) for any additional page the
>     user navigates to. The patch would also close feature request[1]
>     #3583340.
>     The performance benefits should be pretty obvious. You can see a
>     screenshot[2] of the firebug network panel that I took before and after
>     the patch. In the screenshot, I started on the main page and went to 4
>     different server status pages afterwards. This was on a local
>     installation, remote installations should benefit even more...
>     The reason that I'm bringing this issue up on the mailing list is that
>     there is also a drawback. Debugging js files will become somewhat more
>     complex, since we would have to figure out which file a problem
>     might be in.
>     So the question is: are we willing to pay the price for this performance
>     boost?
>     Bye,
>     Rouslan
>     [0]: https://github.com/roccivic/phpmyadmin/tree/js-file-loader
>     [1]:
>     http://sourceforge.net/tracker/?func=detail&aid=3583340&group_id=23067&atid=377411
>     [2]: http://www.placella.com/temp/js-file-loader.png
> How about making a switch for developers, which would allow for easier
> debugging in development environment? Could it work like that, or is it
> too complex to maintain two code paths?

I certainly thought about it. Not sure how feasible it would be though...


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