react/grunt/tasks/npm.js

'use strict';

var assert = require('assert');
var path = require('path');
var grunt = require('grunt');
var spawn = grunt.util.spawn;

module.exports = function() {
  var done = this.async();

  function run(cmd, args, opts, callback) {
    assert.strictEqual(typeof cmd, 'string');
    assert.ok(args instanceof Array);

    if (typeof opts === 'function' && !callback) {
      callback = opts;
      opts = {};
    }

    assert.strictEqual(typeof opts, 'object');
    assert.strictEqual(typeof callback, 'function');

    grunt.log.writeln('> ' + cmd + ' ' + args.join(' '));

    // var proc =
    spawn({
      cmd: cmd,
      args: args,
      opts: opts
    }, function(error, result, code) {
      if (error) {
        grunt.log.error(error);
        done(false);
      } else {
        callback(result, code);
      }
    });

    // Uncomment these to see the output of the commands.
    // proc.stdout.pipe(process.stdout);
    // proc.stderr.pipe(process.stderr);
  }

  var pkg = grunt.config.data.pkg;
  var tgz = pkg.name + '-' + pkg.version + '.tgz';

  grunt.log.writeln('Packing ' + tgz + ' (this could take a while)...');

  run('npm', ['pack', '--verbose', '.'], function() {
    require('tmp').dir(function(err, dir) {
      if (err) {
        grunt.log.error(err);
        done(false);
        return;
      }

      run('cp', [tgz, dir], function() {
        run('npm', [
          'install',
          '--production',
          tgz
        ], {cwd: dir}, function() {
          var nodePath = path.join(dir, 'node_modules');
          var pkgDir = path.join(nodePath, pkg.name);
          var doneCount = 2;

          // Make sure that bin/jsx is runnable by echoing main.js.
          run('bin/jsx', ['main.js'], {
            cwd: pkgDir
          }, function(result) {
            assert.ok(result.stdout.indexOf('transform') >= 0, result.stdout);

            if (--doneCount === 0) {
              done();
            }
          });

          // Make sure the .transform package method works.
          run('node', [
            '--print',
            'require(\'react-tools\').transform(' +
              JSON.stringify(
                '/** @jsx React.DOM */ <div>oyez</div>;'
              ) + ')'
          ], {
            env: {NODE_PATH: nodePath}
          }, function(result, code) {
            assert.ok(result.stdout.indexOf(
              'React.DOM.div(null, \'oyez\');'
            ) >= 0, result.stdout);

            if (--doneCount === 0) {
              done();
            }
          });
        });
      });
    });
  });
};