index.js

var path = require('path'),
    mv = require('mv'),
    del = require('del'),
    Promise = require('pinkie-promise'),
    magicPlatform = require('enb-magic-platform'),
    installBowerDeps = require('./lib/install-bower-deps'),
    introspect = require('./lib/introspect'),
    generateDataJson = require('./lib/generate-data-json'),

    bemConfig = require('bem-config')(),
    config = bemConfig.moduleSync('bem-lib-site') || {};

module.exports = function(pathToLib, version) {
    var initialCwd = process.cwd(),
        absPathToLib = path.resolve(pathToLib);

    // NOTE: needed for magicPlatform
    process.chdir(__dirname);

    var lib, packageJson, bowerJson;

    try {
        packageJson = require(path.join(absPathToLib, 'package'));
        bowerJson = require(path.join(absPathToLib, 'bower'));
        lib = packageJson.name || bowerJson.name;
        version || (version = packageJson.version);
    } catch(err) {}

    lib || (lib = path.basename(pathToLib));
    typeof version === 'undefined' && (version = '');

    var libConfig = config.libs && config.libs[lib],
        libVer = lib + (version ? '-' + version : '');

    process.env.BEM_LIB_SITE_PATH = absPathToLib;
    process.env.BEM_LIB_SITE_LIB = libVer;
    process.env.BEM_TEMPLATE_ENGINE = (libConfig && libConfig.templateEngine) || config.templateEngine;

    return installBowerDeps(absPathToLib)
        .then(function() {
            return Promise.all([
                introspect(absPathToLib),
                magicPlatform.runTasks(['examples', 'docs'])
            ]);
        })
        .then(function(data) {
            // move built data to dest folder
            // NOTE: there's no obvious way to build it there beforehand with magicPlatform
            return new Promise(function(resolve, reject) {
                var destPath = path.resolve(initialCwd,
                        config.data && config.data.outputFolder || 'output-data', libVer),
                    tempFolder = config.data && config.data.tempFolder || 'tmp';

                del(destPath, { force: true }).then(function() {
                    mv(path.resolve(tempFolder, 'data', libVer), destPath, { mkdirp: true }, function(err) {
                        if (err) return reject(err);

                        Promise.all([
                            del(tempFolder),
                            generateDataJson(destPath, lib, version, absPathToLib)
                        ]).then(function() {
                            process.chdir(initialCwd);
                            console.log('Data was collected at', destPath);
                            resolve({
                                path: path.join(destPath)
                            });
                        }).catch(reject);
                    });
                }).catch(reject);
            });
        })
        .catch(function(err) {
            console.error(err.stack);
        });
};