Show CSS/SCSS Compile Errors

[bobmcallan]

Our preference is to extract CSS/SCSS to separate file, and also stop the build process on internal rollup-plugin-vue CSS/SCSS compiler errors.

Current
{css: true} will show errors e.g. $variable missing
{css: false} will not show errors, and 3rd party tools may (/not) pick up the errors.

Request
1/ Option to compile CSS/SCSS, however not output.
or
2/ Provide output option - similar to alternate rollup tools (rollup-plugin-scss).
output: function (styles, styleNodes) { ..... }

Bob