Build.js

build.js

var fs       = require('fs'),
    through  = require('through2'),
    uglify   = require('uglify-js');

var BASE        = './script-ss/',
    DEST        = './script-min/',
    SPECIAL_TAG = '/*common*/';


var modules = [];
function r(module) {
    modules.push("'" + module + "'");
    return {};
}
/**
 * 转换旧的 AMD 格式代码
 */
function transform(file) {
    var that = this;

    if(!file.indexOf(SPECIAL_TAG)) {
        var path = that._readableState.pipes.path;
            moduleName = path.replace(DEST, '').replace('.js', '');

        var lines    = file.split(/\n/g),
            prefix   = '',
            suffix   = '});',
            rrequire = /\brequire\b/,
            rcomma   = /,/g;

        lines.forEach(function(line) {
            if(rrequire.test(line)) {
                try {
                    (new Function('require', line.replace(rcomma, ';')))(r);
                } catch(e) {
                    console.log('----- ERROR -----');
                    console.log(line);
                }
            }
        });

        prefix = 'fml.define("' + moduleName + '", [' + modules.join(',') + '], function(require, exports) {';
        modules.length = 0;

        file = prefix + lines.join('\n') + suffix;
    }
    this.push(file);
}

function compress(file) {
    if(file) {
        try {
            this.push(uglify.minify(file, {
                fromString: true
            }).code);
        } catch(e) {
            //console.log(e)
        }
    }
}

function read(base) {
    fs.readdir(base, function(err, files) {
        if(err) return console.error(err);

        files.forEach(function(file) {
            var path = base + file,
                stat = fs.statSync(path),
                dest = path.replace(BASE, DEST);

            if(stat.isDirectory()) {
                fs.existsSync(dest) || fs.mkdirSync(dest);
                read(path + '/');
            } else {
                var rs = fs.createReadStream(path);
                rs.setEncoding('utf-8');
                rs.pipe(through.obj(transform))
                  //.pipe(through.obj(compress))
                  .pipe(fs.createWriteStream(dest));
            }
        })
    });
}

read(BASE);