Add boot script generator

boot-script/USAGE

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+Description:
+  Creates a new boot script in the LoopBack application.
+
+Example:
+
+  slc loopback:boot-script [your-script-name]
+
+  This generates a boot script in `/server/boot`.

boot-script/index.js

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+'use strict';
+var helpers = require('../lib/helpers');
+var path = require('path');
+var yeoman = require('yeoman-generator');
+
+module.exports = yeoman.generators.Base.extend({
+  constructor: function() {
+    yeoman.generators.Base.apply(this, arguments);
+
+    this.argument('name', {
+      desc: 'Name of the boot script to create.',
+      required: false,
+      optional: true,
+      type: String
+    });
+  },
+
+  help: function() {
+    return helpers.customHelp(this);
+  },
+
+  askForName: function() {
+    var done = this.async();
+
+    if (this.name) return done();
+
+    var question = {
+      name: 'name',
+      message: 'Enter the script name (without `.js`):',
+      default: this.name,
+      validate: helpers.validateName
+    };
+
+    this.prompt(question, function(answer) {
+      this.name = answer.name;
+      done();
+    }.bind(this));
+  },
+
+  askForType: function() {
+    var done = this.async();
+
+    var question = {
+      name: 'type',
+      message: 'What type of boot script do you want to generate?',
+      type: 'list',
+      choices: ['async', 'sync'],
+      default: 'async'
+    };
+
+    this.prompt(question, function(answer) {
+      this.type = answer.type;
+      done();
+    }.bind(this));
+  },
+
+  generate: function() {
+    var source = this.templatePath(this.type + '.js');
+
+    var targetPath = path.normalize('/server/boot/' + this.name + '.js');
+    var target = this.destinationPath(targetPath);
+
+    this.copy(source, target);
+  }
+});

boot-script/templates/async.js

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+module.exports = function(app, cb) {
+  /*
+   * The `app` object provides access to a variety of LoopBack resources such as
+   * models (e.g. `app.models.YourModelName`) or data sources (e.g.
+   * `app.datasources.YourDataSource`). See
+   * http://docs.strongloop.com/display/public/LB/Working+with+LoopBack+objects
+   * for more info.
+   */
+  process.nextTick(cb); // Remove if you pass `cb` to an async function yourself
+};

boot-script/templates/sync.js

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+module.exports = function(app) {
+  /*
+   * The `app` object provides access to a variety of LoopBack resources such as
+   * models (e.g. `app.models.YourModelName`) or data sources (e.g.
+   * `app.datasources.YourDataSource`). See
+   * http://docs.strongloop.com/display/public/LB/Working+with+LoopBack+objects
+   * for more info.
+   */
+};

test/boot-script.test.js

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+/*global describe, beforeEach, it */
+'use strict';
+var path = require('path');
+var helpers = require('yeoman-generator').test;
+var SANDBOX =  path.resolve(__dirname, 'sandbox');
+var fs = require('fs');
+var expect = require('chai').expect;
+var common = require('./common');
+
+describe('loopback:boot-script generator', function() {
+  beforeEach(common.resetWorkspace);
+
+  beforeEach(function createSandbox(done) {
+    helpers.testDirectory(SANDBOX, done);
+  });
+
+  beforeEach(function createProject(done) {
+    common.createDummyProject(SANDBOX, 'test-app', done);
+  });
+
+  it('generates an async boot script properly', function(done) {
+    var bootGen = givenBootScriptGenerator();
+    helpers.mockPrompt(bootGen, {
+      name: 'async-boot-script',
+      type: 'async'
+    });
+
+    bootGen.run(function() {
+      var target = path.resolve(SANDBOX, 'server/boot/async-boot-script.js');
+      expect(fs.existsSync(target), 'file exists');
+
+      var targetContents = fs.readFileSync(target, 'utf8');
+      var src = path.resolve(__dirname, '../boot-script/templates/async.js');
+      var srcContents = fs.readFileSync(src, 'utf8');
+      expect(targetContents).to.equal(srcContents);
+
+      done();
+    });
+  });
+
+  it('generates a sync boot script properly', function(done) {
+    var bootGen = givenBootScriptGenerator();
+    helpers.mockPrompt(bootGen, {
+      name: 'sync-boot-script',
+      type: 'sync'
+    });
+
+    bootGen.run(function() {
+      var target = path.resolve(SANDBOX, 'server/boot/sync-boot-script.js');
+      expect(fs.existsSync(target), 'file exists');
+
+      var targetContents = fs.readFileSync(target, 'utf8');
+      var src = path.resolve(__dirname, '../boot-script/templates/sync.js');
+      var srcContents = fs.readFileSync(src, 'utf8');
+      expect(targetContents).to.equal(srcContents);
+
+      done();
+    });
+  });
+
+  function givenBootScriptGenerator(bsArgs) {
+    var path = '../../boot-script';
+    var name = 'loopback:boot-script';
+    var gen = common.createGenerator(name, path, [], bsArgs, {});
+    return gen;
+  }
+});