XF 2.2 css.php: how to render a copy of core.less ?

[mazzly]

Hi,

Building the AMP addon, I want to reuse relevant styles from core.less/app.less

So I tried to simply make a new core2.less template with identical content to core.less and load it, then I get the following error:
(url is /css.php?css=public%3Acore2.less&s=1&l=1, works fine with "core" but not "core2")

@charset "UTF-8";

body:before { display: block; content: 'Errors occurred when rendering CSS:\A * public:core2.less: .m-formElementExplain is undefined in public:core2.less (on or near line 7300)\A  7297 | \A  7298 | .inputChoices-explain\A  7299 | {\A *7300*|     .m-formElementExplain();\A  7301 | \A  7302 |     &.inputChoices-explain--after\A  7303 |     {'; background: yellow; color: black; padding: 10px; margin: 10px; white-space: pre-wrap; }

Is there something special with rendering of core.less? I also realized that the same thing happens for app.less if I make a copy of it.

Cheers
//Jonathan

 

[mazzly]

nvm figured it out
CssRenderer::getLessPrependForPrefix() does the magic of prepending the core_prepend.less, so I needed a copy of those files as well