butterknife/lib/travis.js

Spread the awesome blend of Grunt.js, Travis and Sauce

var yaml = require('js-yaml')
  , async = require('async')
  , travisenc = require('travis-encrypt')
  , process = require('process')
  , _ = require('underscore')
  , fs = require('fs');

var TRAVISYML = '.travis.yml';

module.exports = function(cb) {
  console.log('Getting travis ready for prime time.');
  var getSlug = function(fin) {
    var pwd = process.cwd();
    var pkg = require(pwd + '/package.json');
    if (pkg.repository.url.length <= 0) {
      return fin('Cannot detect travis slug without proper package.json information.');
    }

    var url = pkg.repository.url;
    var slug = url.substring(url.indexOf('github.com/')+11, url.indexOf('.git'));

    fin(null, slug);
  };

  var loadYml = function(fin) {
    fs.exists(TRAVISYML, function(exists) {
      if (!exists) {
        // Let's move this into a template soon
        var out = yaml.dump({
          'language': 'node_js'
          , 'node_js': '0.10'
          , 'install': [
            'npm install grunt-cli -g'
            , 'npm install'
          ]
          , 'notifications': {
            'email': {
              'on_success': 'never'
            }
          }
        });

        fs.writeFileSync(TRAVISYML, out);
      }

      var travisYml = fs.readFileSync(TRAVISYML, { 'encoding': 'utf-8' });
      var travisJson = yaml.safeLoad(travisYml);
      fin(null, travisJson);
    });
  };

  loadYml(function(err, yml) {
    if (yml.language !== 'node_js') {
      return cb('Unsupported target language. Please consider switching to node_js.');
    }

    if (typeof process.env['SAUCE_USERNAME'] !== 'string'
      || typeof process.env['SAUCE_ACCESS_KEY'] !== 'string') {
      return cb('Please make sure to set up SAUCE_USERNAME and SAUCE_ACCESS_KEY in your environment.');
    } else {
      var username = process.env['SAUCE_USERNAME']
        , accesskey = process.env['SAUCE_ACCESS_KEY']
        // Make this a command line option
        , slug = '';

      getSlug(function(err, _slug) {
        if (err) {
          return cb(err);
        }

        slug = _slug;

        async.series([
          function(done) {
            travisenc(slug, ['SAUCE_USERNAME', '=', username].join('')).then(function(sures) {
              done(null, sures);
            }, function(err) {
              cb('Travis secure env variables encryption failed. Make sure your repo is hooked up to Travis CI.');
            });
          },
          function(done) {
            travisenc(slug, ['SAUCE_ACCESS_KEY', '=', accesskey].join('')).then(function(sakres) {
              done(null, sakres);
            }, function(err) {
              cb('Travis secure env variables encryption failed.');
            });
          }
        ], function(err, res) {
          if (err) {
            cb(err);
          } else {
            var sec = 0;
            var ymls = '\nenv:\n';
            ymls += '  - [\n';

            _.forEach(res, function(v, i) {
              sec++;
              ymls += '      {secure: "' + v + '"}';
              if (res.length > sec) {
                ymls += ',';
              }
              ymls += '\n';
            });

            ymls += '    ]\n';

            var out = yaml.dump(yml);
            if (res.length > 0 ) {
              out = out + ymls;
            }
            fs.writeFileSync(TRAVISYML, out);

            cb(null, true)
          }
        });
      });
    }
  });
};