source: Dev/branches/rest-dojo-ui/client/dijit/themes/claro/compile.js @ 256

// Script to process all the less files and convert them to CSS files
// Run from themes/dijit/claro like:
//
//      $ node compile.js

var fs = require('fs'),         // file system access
        path = require('path'), // get directory from file name
        less = require('../../../util/less');   // less processor

var options = {
        compress: false,
        optimization: 1,
        silent: false
};

var allFiles = [].concat(
                fs.readdirSync("."),
                fs.readdirSync("form").map(function(fname){ return "form/"+fname; }),
                fs.readdirSync("layout").map(function(fname){ return "layout/"+fname; })
        ),
        lessFiles = allFiles.filter(function(name){ return name && name != "variables.less" && /\.less$/.test(name); });

lessFiles.forEach(function(fname){
        console.log("=== " + fname);
        fs.readFile(fname, 'utf-8', function(e, data){
                if(e){
                        console.error("lessc: " + e.message);
                        process.exit(1);
                }

                new(less.Parser)({
                        paths: [path.dirname(fname)],
                        optimization: options.optimization,
                        filename: fname
                }).parse(data, function(err, tree){
                        if(err){
                                less.writeError(err, options);
                                process.exit(1);
                        }else{
                                try{
                                        var css = tree.toCSS({ compress: options.compress }),
                                                outputFname = fname.replace('.less', '.css');
                                        var fd = fs.openSync(outputFname, "w");
                                        fs.writeSync(fd, css, 0, "utf8");
                                }catch(e){
                                        less.writeError(e, options);
                                        process.exit(2);
                                }
                        }
                });
        });
});