LESS import tree; using https://github.com/es128/progeny

less-import-tree.js

// usage: node less-import-tree.js myfile.less
// change dirPath to whatever you need

var args = process.argv.slice(2);
var path = require('path');
var progeny = require('progeny');
var dirPath = 'resources/less';
var fileName = args[0];

var filePath = path.join(dirPath, fileName);
progeny({
    extension: 'less',
    regexp: /^\s*@import\s*(?:\(\w+\)\s*)?['"]([^'"]+)['"]/,
    debug: true
})(filePath, function(error, result) {
    // console.log(error || result);
});