iD/build_src.js

var fs = require('fs');
var rollup = require('rollup');
var nodeResolve = require('rollup-plugin-node-resolve');
var commonjs = require('rollup-plugin-commonjs');
var json = require('rollup-plugin-json');
var colors = require('colors/safe');


module.exports = function buildSrc(isDevelopment) {
    var cache;
    var building = false;
    return function() {
        if (building) return;
    
        // Start clean
        unlink('dist/iD.js');
        unlink('dist/iD.js.map');
    
        building = true;
        console.log('building src');
        console.time(colors.green('src built'));
    
        rollup.rollup({
            entry: './modules/id.js',
            plugins: [
                nodeResolve({
                    jsnext: true, main: true, browser: false
                }),
                commonjs(),
                json()
            ],
            cache: cache
        }).then(function (bundle) {
            bundle.write({
                format: 'iife',
                dest: 'dist/iD.js',
                sourceMap: true,
                useStrict: false
            });
            building = false;
            cache = bundle;
            console.timeEnd(colors.green('src built'));
        }, function(err) {
            building = false;
            cache = undefined;
            console.error(err);
        });
    };
};


function unlink(f) {
    try { fs.unlinkSync(f); } catch (e) { /* noop */ }
}