Well, I made sure you can do it:). I created the grouped middleware
functions for convenience's sake and I intend to add more.
Something like that will work:
(let [loader (resource-loader "/precompiled")]
(->
(some-fn (wrap-lesscss-processor loader)
(wrap-coffeescript-processor loader)
(resource-loader "/public"))
(cond-> devmode
(->
(wrap-yui-css-compressor)
(wrap-uglify-js-compressor)))))
Of course you will have to (use ...) more namespaces.
Although this might not be good enough, because:
1. LessCSS files should be listed. You will usually want to compile only
one or two of them, the rest will be @imported. SASS has convention to mark
those files with underscore _ at the beginning of filename, but LESS
doesn't have any solution like that, so...
2. If you specify files to compile, they will be precompiled and any
compilation errors will be found immediately as the app won't start.
3. I tried separate caching layer, but it doesn't work so good. It gets
especially complex with LessCSS - you have to watch imported files for
changes too. Also, I want to add transformation with non-java tools.
Integrating with those usually is based on filesystem anyway.
Marcin
W dniu sobota, 16 listopada 2013 13:08:18 UTC+1 użytkownik James Reeves
napisał:
>
> Hi Marcin,
>
> Why did you choose to group LESS compilations, CoffeeScript minification,
> caching and resource minification in one middleware function? Why not have
> a separate middleware function for each?
>
> For example, instead of:
>
> (compiled-assets-loader
> "precompiled"
> :lesscss-list ["css/bootstrap.less"]
> :mode :prod)
>
>
> Consider instead a structure like:
>
> (-> (route/resources "/*.less")
> (wrap-compile-less)
> (wrap-minify-css)
> (wrap-cache (file-cache "tmp/less/compiled"))
>
>
> You'd get the same functionality, but in a form where each function does a
> specific task.
>
> - James
>
>
> On 16 November 2013 01:40, Marcin Skotniczny <cosmi...@gmail.com<javascript:>
> > wrote:
>
>>
>> <http://upload.wikimedia.org/wikipedia/commons/6/6d/Cornet2.png>
>> https://github.com/cosmi/cornet
>>
>> Cornet is a simple asset pipeline that will help you compile on the
>> flight LessCSS, CoffeeScript and minify all your CSSes and JSes.
>>
>> I wasn't happy with what's already there
>> (dieter<https://github.com/edgecase/dieter> isn't
>> really in spirit of Clojure) - I wanted something simple to use and
>> compatible with Compojure. So here it is - my third iteration of the idea.
>>
>> There's simple basic usage described in the README, but I am really proud
>> of the architecture of the library. It is very extendable and can combine
>> transformations in any way you want, so I will work on new usage modes if
>> needed (or you can figure it out by yourself :) ).
>>
>> Let me know what you think.
>>
>> Also, how are you managing this now?
>>
>>
>> Marcin
>>
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