Borks on system files

[natevw]

It'd be nice if the file listing code could ignore hidden files. E.g. the binary ".DS_Store" files that Finder.app on OS X creates keep making it upset:

[TypeError: my-project/public/css/.DS_Store:1
 > 1| Buol_lg1_dsclbool_lg1Scompz�_moDDdutc�
                                              @� @ @ @
                                                      E�DSDB  @ @ @

Cannot read property 'type' of undefined

(This is in a rack.DynamicAssets with type: rack.StylusAsset and watch: true in case that makes a difference.)

[freshlogic]

I worked around this issue by using filter.

var assets = new rack.Rack([
    new rack.DynamicAssets({ dirname: './public/styles', filter: '.scss', options: { compress: true, gzip: true }, type: rack.SassAsset, urlPrefix: '/styles' })
]);