Fails to compile compressed assets when using bourbon/sass (5.0.1)

[grokasm]

I recently updated connect-assets from 3.0.2 to 5.0.1 and all asset compilation has broken.
The error I am seeing is:

CssSyntaxError: [CsswringCompressor] <css input>:1:1: Unknown word  (in /home/dima/dev/copthis/copthis-website/node_modules/node-bourbon/assets/stylesheets/_bourbon.scss)
// Settings
^
@import "settings/prefixer";
    at Input.error (/home/dima/dev/copthis/copthis-website/node_modules/connect-assets/node_modules/csswring/node_modules/postcss/lib/input.js:65:21)
    at Parser.word (/home/dima/dev/copthis/copthis-website/node_modules/connect-assets/node_modules/csswring/node_modules/postcss/lib/parser.js:184:30)
    at Parser.loop (/home/dima/dev/copthis/copthis-website/node_modules/connect-assets/node_modules/csswring/node_modules/postcss/lib/parser.js:61:26)
    at Object.parse [as default] (/home/dima/dev/copthis/copthis-website/node_modules/connect-assets/node_modules/csswring/node_modules/postcss/lib/parse.js:21:12)
    at new LazyResult (/home/dima/dev/copthis/copthis-website/node_modules/connect-assets/node_modules/csswring/node_modules/postcss/lib/lazy-result.js:54:42)
    at Processor.process (/home/dima/dev/copthis/copthis-website/node_modules/connect-assets/node_modules/csswring/node_modules/postcss/lib/processor.js:30:16)
    at CSSWring.wring (/home/dima/dev/copthis/copthis-website/node_modules/connect-assets/node_modules/csswring/lib/csswring.js:559:38)
    at Function.csswring.wring (/home/dima/dev/copthis/copthis-website/node_modules/connect-assets/node_modules/csswring/lib/csswring.js:572:25)
    at CsswringCompressor.compile (/home/dima/dev/copthis/copthis-website/node_modules/connect-assets/node_modules/mincer/lib/mincer/compressors/csswring_compressor.js:50:23)
    at CsswringCompressor.evaluate (/home/dima/dev/copthis/copthis-website/node_modules/connect-assets/node_modules/mincer/lib/mincer/compressors/csswring_compressor.js:64:17)

This only happens with compression enabled.
For some reason the postcss parser seems to be having an issue with the comments in the _bourbon.scss file.
I'm not sure if this is a connect-assets/mincer/csswring/postcss issue.

[mecab]

I hope you have already solved it, but pass the option like:
{ precompile: ["style.css"] }.
style.css should be the filename suitable for the SCSS/SASS you made. (I made style.scss.css for this example)

Without the option (defaults to "*"), mincer cannot know the entry point to compile and start compilation from an improper file in paths (could be a part of bourbon).

[grokasm]

Thanks @mecab! I had worked around it by keeping the older version, I'll attempt to upgrade with precompilation when I get a chance and update the issue with the results.

[augnustin]

I'm having the same issue, after upgrading also.

@mecab thanks for support, but I don't understand your comment. Files should be called styles.scss.css? Sounds weird, in sprocket, it is usually styles.css.scss.

Anyways, I understand that what was failing were the comments so I removed them also... but is it a satisfying solution?

[mecab]

@aug-riedinger It's my typo, styles.css.scss is correct as sprocket way. Sorry for confusing you. What I meant is to make your files with suffix of source type (foo.css.scss) but the option value should be end with output type (foo.css).

I'm not sure whether removing comment from bourbon works or not, because I haven't tried to do that (I guess it works, though). However my workaround concludes within the scope of your code (i.e., you won't need to patch to bourbon and any dependencies). I put bourbon in my project via node-bourbon package, so I didn't want to make the change in it.

Of course, the radical issue lies on one of connect-assets, mincer, csswring or postcss. // style comment is valid in SCSS

[augnustin]

Thanks!

[blakevanlan]

Closing this for now. If it's still a problem please reopen.