node-sass importer bug

README.md

ZIP File

Dropbox download link

a.scss

// assets/a/a.scss
@import "sameFileName";

anotherFileName.scss

// assets/b/anotherFileName.scss
@mixin italicFOFO {
  font-style: italic;
}

b.scss

// assets/b/b.scss
@import "sameFileName";
// @import "anotherFileName"; // Works fine

index.js

var nodeSass = require('node-sass');
var path = require('path');
var fs = require('fs');

var prevMap = {};

var importer = function (request, prev, done) {
    if (request) {
        var fileName = null,
            buff = "";

        if (prev == "stdin") {
            fileName = path.join(__dirname, 'assets');
            fileName = path.join(fileName, request);
        }
        else {
            var dirname = path.dirname(prevMap[prev]) // with buff
            // var dirname = path.dirname(prev); // with fileName
            fileName = path.join(dirname, request);
        }

        if (fileName) {
            prevMap[request] = fileName;

            fileName += ".scss";
            buff = fs.readFileSync(fileName, 'utf8');
        }

        done({
            contents: buff
            // file: fileName
        });
    } else {
        done();
    }
}

var source = `@import "a/a";
@import "b/b";

h1 {
  @include redFOFO;
  @include italicFOFO;
};`;

var options = {
    importer: importer,
    data: source
}


nodeSass.render(options, function (error, result) {
    if (error) {
        throw error;
    }
    else {
        console.log(result.css.toString());
    }
});

sameFileName.scss

// assets/a/sameFileName.scss
@mixin redFOFO {
  color: red
}

// assets/b/sameFileName.scss
@mixin italicFOFO {
  font-style: italic;
}