build with svn revision

build.js

var svnInfoOutput = '';
var svnInfo = require('child_process').exec(
    'svn info',
    function (err) {
        var svnRevision;
        if (err) {
            // 如果没装svn命令行，获取不到版本号，就用时间戳了
            svnRevision = +new Date();
            console.warn(
                '\033[31m'
                + 'SVN client not found, '
                + 'use timestamp as version number, '
                + 'this may cause MD5 diferrence when deploy'
                + '\033[0m'
            );
        }
        else {
            // 获取svn版本号
            svnRevision = /Revision: (\d+)/.exec(svnInfoOutput)[1];
            console.log('SVN is at revision ' + svnRevision);
        }

        console.log('Started building');
        var startTime = new Date();
        var args = ['build', '.', '--revision=' + svnRevision];
        // Windows下必须用`cmd /c edp build . --revision=xxx`这么来，直接执行报错，
        // 使用`process.env.comspec`可以判断是否为Windows平台了
        if (process.env.comspec) {
            args.unshift('edp');
            args.unshift('/c');
        }
        // 把svn版本号传给edp build命令
        var build = require('child_process').spawn(
            process.env.comspec || 'edp',
            args.concat(process.argv.slice(2)),
            { stdio: 'inherit' }
        );
        build.on(
            'error',
            function (err) {
                console.log('Encountered error:', err);
                process.exit();
            }
        );
        build.on(
            'close',
            function (err) {
                console.log('done within ' + (new Date() - startTime) + 'ms');
            }
        );
    }
);
svnInfo.stdout.on('data', function (data) { svnInfoOutput += data; });

edp-build-config.js

// 获取命令行传过来的svn版本号
var args = {};
(function () {
    for (var i = 4; i < process.argv.length; i++) {
        var arg = process.argv[i];
        console.log(arg);
        var pair = arg.split('=');
        var key = pair[0].substring(2);
        var value = pair[1];
        args[key] = value;
    }
}());
var svnRevision = args.revision || '';

// 重点就在2个PathMapper上，其它的Processor随便加
exports.getProcessors = function () {
    return [
        new PathMapper({
            replacements: [
                { type: 'html', tag: 'link', attribute: 'href', extnames: pageEntries },
                { type: 'html', tag: 'img', attribute: 'src', extnames: pageEntries },
                { type: 'html', tag: 'script', attribute: 'src', extnames: pageEntries },
                { type: 'html', tag: 'a', attribute: 'href', extnames: pageEntries },
                { extnames: moduleEntries, replacer: 'module-config' },
                { extnames: 'css,less', replacer: 'css' }
            ],
            from: 'src',
            to: 'asset-' + svnRevision
        }),
        new PathMapper({
            replacements: [
                { type: 'html', tag: 'link', attribute: 'href', extnames: pageEntries },
                { type: 'html', tag: 'img', attribute: 'src', extnames: pageEntries },
                { type: 'html', tag: 'script', attribute: 'src', extnames: pageEntries },
                { type: 'html', tag: 'a', attribute: 'href', extnames: pageEntries },
                { extnames: moduleEntries, replacer: 'module-config' },
                { extnames: 'css,less', replacer: 'css' }
            ],
            from: 'dep',
            to: 'dep-' + svnRevision
        }),
        new AddCopyright(),
        new ReplaceDebug({
            exclude: ['*.tpl.html']
        })
    ];
};

/**
 * builder主模块注入processor构造器的方法
 *
 * @param {Object} processors
 */
exports.injectProcessor = function (processors) {
    for (var key in processors) {
        global[key] = processors[key];
    }
};