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AngularJS从构建项目开始

AngularJS体验式编程系列文章,将介绍如何用angularjs构建一个强大的web前端系统。angularjs是由Google团队开发的一款非常优秀web前端框架。在当前如此多的web框架下,angularjs能脱颖而出,从架构设计上就高人一等,双向数据绑定,依赖注入,指令,MVC,模板。Angular.js创新地把后台技术融入前端开发,扫去jQuery一度的光芒。用angularjs就像写后台代码,更规范,更结构化,更可控。

关于作者

  • 张丹(Conan), 程序员Java,R,PHP,Javascript
  • weibo:@Conan_Z
  • blog: http://blog.fens.me
  • email: bsspirit@gmail.com

转载请注明出处:

http://blog.fens.me/angularjs-yeoman-project/

angularjs-yeoman

前言

随着AngularJS被越来越多的开发人员所了解,AngularJS的应用受到市场的好评。AngularJS是一种新型的以Javascript为基础的框架,以后台的编程思路影响着web前端的开发。在扎根细节之前,让我们先了解AngularJS项目构架。自顶向下的开始,就是不一样的开发。Angular体验式编程从此开始。

目录

  1. AngularJS介绍
  2. 构建AngularJS项目(Yeoman,angular-seed)
  3. AngularJS项目结构(Yeoman)
  4. AngularJS必备基础
  5. 启动项目

1. AngularJS介绍

AngularJS是一个为动态WEB应用设计的结构框架。它能让你使用HTML作为模板语言,通过扩展HTML的语法,让你能更清楚、简洁地构建你的应用组件。它的创新点在于,利用 数据绑定 和 依赖注入,它使你不用再写大量的代码了。这些全都是通过浏览器端的Javascript实现,这也使得它能够完美地和任何服务器端技术结合。

AngularJS介绍,摘自:http://angularjs.cn/A00n

2. 构建AngularJS项目(Yeoman,angular-seed)

说到构建项目,目前我了解的有三种:

  • 手工项目: 自己建目录,下载类库,写html,js,css,自己实现引用关系
  • angular-seed项目: 下载github的angular-seed,在别人的基础之上开发
  • Yeoman项目:通过Yeoman下载一个标准Yeoman项目,已经内置了grunt及各种工具包

1). 手工项目

构建手工项目是我们平时用的最多的一种方式了,适用于小型或demo项目。我不在解释,参照angularjs一步一步操作就行了。

2). angular-seed项目

一般把这个项目称为angular的“种子项目”,构建方法是去github下载项目源代码,基于已有项目结构再做开发。这种项目都融入了前人的经验,会以一种比较合理的结构,帮我们构建出项目的原型。适合于有一定规模项目开发,同时更适合geek的扩展。

下载演示一下构建过程


~ D:\workspace\javascript>git clone https://github.com/bsspirit/angular-seed.git
Cloning into 'angular-seed'...
remote: Counting objects: 1007, done.
remote: Compressing objects: 100% (497/497), done.
emote: Total 1007 (delta 521), reused 847 (delta 412)
Receiving objects: 100% (1007/1007), 6.30 MiB | 164 KiB/s, done.
Resolving deltas: 100% (521/521), done.

~ D:\workspace\javascript>cd angular-seed
~ D:\workspace\javascript\angular-seed>node scripts\web-server.js
Http Server running at http://localhost:8000/

打开浏览器:http://localhost:8000/app/index.html

angular-seed1

通过阅读READMD.md,我们可以了解这个”种子项目”如何使用。

项目目录及介绍


## Directory Layout
    app/                --> all of the files to be used in production
      css/              --> css files
        app.css         --> default stylesheet
      img/              --> image files
      index.html        --> app layout file (the main html template file of the app)
      index-async.html  --> just like index.html, but loads js files asynchronously
      js/               --> javascript files
        app.js          --> application
        controllers.js  --> application controllers
        directives.js   --> application directives
        filters.js      --> custom angular filters
        services.js     --> custom angular services
      lib/              --> angular and 3rd party javascript libraries
        angular/
          angular.js        --> the latest angular js
          angular.min.js    --> the latest minified angular js
          angular-*.js      --> angular add-on modules
          version.txt       --> version number
      partials/             --> angular view partials (partial html templates)
        partial1.html
        partial2.html

    config/karma.conf.js        --> config file for running unit tests with Karma
    config/karma-e2e.conf.js    --> config file for running e2e tests with Karma

    scripts/            --> handy shell/js/ruby scripts
      e2e-test.sh       --> runs end-to-end tests with Karma (*nix)
      e2e-test.bat      --> runs end-to-end tests with Karma (windows)
      test.bat          --> autotests unit tests with Karma (windows)
      test.sh           --> autotests unit tests with Karma (*nix)
      web-server.js     --> simple development webserver based on node.js

    test/               --> test source files and libraries
      e2e/              -->
        runner.html     --> end-to-end test runner (open in your browser to run)
        scenarios.js    --> end-to-end specs
      lib/
        angular/                --> angular testing libraries
          angular-mocks.js      --> mocks that replace certain angular services in tests
          angular-scenario.js   --> angular's scenario (end-to-end) test runner library
          version.txt           --> version file
      unit/                     --> unit level specs/tests
        controllersSpec.js      --> specs for controllers
        directivessSpec.js      --> specs for directives
        filtersSpec.js          --> specs for filters
        servicesSpec.js         --> specs for services

启动server

node scripts/web-server.js

单元测试(Unit test):karma + jasmine
端到端测试(End to End test):karma + jasmine + webserver

我们大概了解了“种子工程”的全貌,这样子心理有数了,就可以开始我们的项目开发了。

对于更高要求的开发者来说,“种子工程”的基础是不够。

  • 1. karam,jasmine都需要手动安装
  • 2. 没有代码自动化(自动增加controller…)
  • 3. 没有实现构建自动化(自动打包,自动压缩js…)
  • ……

一个大型项目构成是方方面面的,接下来我们通过标准化的Yeoman来构建一个企业级应用的项目基础。

3). Yeoman项目
yeoman是一个标准化的项目开发工作流工具,详细使用介绍请参考:Yeoman自动构建js项目

通过yeoman也构建项目

~ D:\workspace\javascript>mkdir nodejs-angular
~ D:\workspace\javascript>cd nodejs-angular
~ D:\workspace\javascript>npm install -g generator-angular

# 创建项目
~ D:\workspace\javascript\nodejs-angular>yo angular
[?] Would you like to include Twitter Bootstrap? Yes
[?] Would you like to use the SCSS version of Twitter Bootstrap with the Compass CSS Authoring Framework? No
[?] Which modules would you like to include? angular-resource.js, angular-cookies.js, angular-sanitize.js
   create app/styles/bootstrap.css
   create app/styles/main.css
   create app\index.html
   create bower.json
   create package.json
   create Gruntfile.js
   invoke   angular:common:D:\toolkit\nodejs\node_modules\generator-angular\app\index.js
   create     .bowerrc
   create     .editorconfig
   create     .gitattributes
   create     .jshintrc
   create     app\.buildignore
   create     app\.htaccess
   create     app\404.html
   create     app\favicon.ico
   create     app\robots.txt
   create     app\views\main.html
   create     test\.jshintrc
   create     test\runner.html
   create     .gitignore
   invoke   angular:main:D:\toolkit\nodejs\node_modules\generator-angular\app\index.js
   create     app\scripts\app.js
   invoke   angular:controller:D:\toolkit\nodejs\node_modules\generator-angular\app\index.js
   create     app\scripts\controllers\main.js
   create     test\spec\controllers\main.js
   invoke   karma:app
   create     karma.conf.js
   create     karma-e2e.conf.js
   create     .travis.yml

I'm all done. Running bower install & npm install for you to install the required dependencies. If this fails, try runni
ng the command yourself.

输入yo angular后,会提示我们要不要使用bootstrap;要不要用SCSS生成CSS;要不要include试angular的资源文件。我们选择完以后,会列出生成的项目文件,这个命令执行要2分钟左右,会自动下载很多的依赖包。

3. AngularJS项目结构(Yeoman)

yo-angular1

更直观地看到目录结构

  • .tmp:临时目录
  • app:开发的源代码的目录
  • dist:生成用于发布的项目
  • node_modules:nodejs依赖包
  • test:测试文件的目录
  • .bowerrc:bower属性
  • .editooconfig:对开发工具的属性配置
  • .gitattributes:git属性的配置
  • .gitignore:git管理文件的配置
  • .jshintr:JSHint配置
  • .travis.yml:travis-ci持续集成的配置
  • bower.json:bower依赖管理
  • Gruntfile.js:grunt开发过程管理
  • karma.conf.js:karma自动化测试
  • karma-e2e.conf.js:karma端到端自动化测试
  • package.json:项目依赖文件

4. AngularJS必备基础

从上面的目录结构,我们可以看出AngularJS对哪些东西是需要的。

git, yeoman, bower, grunt, karma …

所以,不要着急上手,先把基础工具都掌握,请参考系列文章:从零开始nodejs系列文章:成为高手 – 进阶篇

基础知识掌握多少,注定我们能开发多大规模的项目。

5. 启动项目

我们下载这个工程后,发现没有任何的文档。启动项目应该如何操作呢?

从刚才分析目录及文件结构,我们知道了这个项目是基于grunt构建的,那么一切的操作都会源于Gruntfile.js。grunt的详细介绍,请参考:grunt让Nodejs规范起来

打开Gruntfile.js,直接定位到grunt.registerTask()


  grunt.registerTask('server', function (target) {
    if (target === 'dist') {
      return grunt.task.run(['build', 'open', 'connect:dist:keepalive']);
    }

    grunt.task.run([
      'clean:server',
      'concurrent:server',
      'autoprefixer',
      'connect:livereload',
      'open',
      'watch'
    ]);
  });

  grunt.registerTask('test', [
    'clean:server',
    'concurrent:test',
    'autoprefixer',
    'connect:test',
    'karma'
  ]);

  grunt.registerTask('build', [
    'clean:dist',
    'useminPrepare',
    'concurrent:dist',
    'autoprefixer',
    'concat',
    'copy:dist',
    'cdnify',
    'ngmin',
    'cssmin',
    'uglify',
    'rev',
    'usemin'
  ]);

  grunt.registerTask('default', [
    'jshint',
    'test',
    'build'
  ]);

这里定义了4个任务:server,test,build, default。

从名字看就能猜出对应该的功能。

启动server


~ D:\workspace\javascript\nodejs-angular>grunt server
Running "server" task

Running "clean:server" (clean) task
Cleaning .tmp...OK

Running "concurrent:server" (concurrent) task

Running "coffee:dist" (coffee) task

Running "copy:styles" (copy) task

Running "autoprefixer:dist" (autoprefixer) task
File ".tmp/styles/bootstrap.css" created.
File ".tmp/styles/main.css" created.

Running "connect:livereload" (connect) task
Started connect web server on localhost:9000.

Running "open:server" (open) task

Running "watch" task
Waiting...

浏览器被自动打开:http://localhost:9000/#/

yo-angular2

执行default任务,生成用于部署的目录dist


~ D:\workspace\javascript\nodejs-angular>grunt --force
Running "jshint:all" (jshint) task
>> 3 files lint free.
Warning: Task "karma" not found. Used --force, continuing.

Running "clean:dist" (clean) task
Cleaning .tmp...OK
Cleaning dist/.htaccess...OK
Cleaning dist/404.html...OK
Cleaning dist/bower_components...OK
Cleaning dist/favicon.ico...OK
Cleaning dist/index.html...OK
Cleaning dist/robots.txt...OK
Cleaning dist/scripts...OK
Cleaning dist/styles...OK
Cleaning dist/views...OK

Running "useminPrepare:html" (useminPrepare) task
Going through app/index.html to update the config
Looking for build script HTML comment blocks

Found a block:
<!-- build:css(.tmp) styles/main.css -->
<link rel="stylesheet" href="styles/bootstrap.css">
<link rel="stylesheet" href="styles/main.css">
<!-- endbuild -->
Updating config with the following assets:
- .tmp\styles\bootstrap.css
- .tmp\styles\main.css

Found a block:
<!-- build:js scripts/plugins.js -->
<script src="bower_components/bootstrap-sass/js/bootstrap-affix.js"></script>
<script src="bower_components/bootstrap-sass/js/bootstrap-alert.js"></script>
<script src="bower_components/bootstrap-sass/js/bootstrap-dropdown.js"></script>
<script src="bower_components/bootstrap-sass/js/bootstrap-tooltip.js"></script>
<script src="bower_components/bootstrap-sass/js/bootstrap-modal.js"></script>
<script src="bower_components/bootstrap-sass/js/bootstrap-transition.js"></script>
<script src="bower_components/bootstrap-sass/js/bootstrap-button.js"></script>
<script src="bower_components/bootstrap-sass/js/bootstrap-popover.js"></script>
<script src="bower_components/bootstrap-sass/js/bootstrap-typeahead.js"></script>
<script src="bower_components/bootstrap-sass/js/bootstrap-carousel.js"></script>
<script src="bower_components/bootstrap-sass/js/bootstrap-scrollspy.js"></script>
<script src="bower_components/bootstrap-sass/js/bootstrap-collapse.js"></script>
<script src="bower_components/bootstrap-sass/js/bootstrap-tab.js"></script>
<!-- endbuild -->
Updating config with the following assets:
- app\bower_components\bootstrap-sass\js\bootstrap-affix.js
- app\bower_components\bootstrap-sass\js\bootstrap-alert.js
- app\bower_components\bootstrap-sass\js\bootstrap-dropdown.js
- app\bower_components\bootstrap-sass\js\bootstrap-tooltip.js
- app\bower_components\bootstrap-sass\js\bootstrap-modal.js
- app\bower_components\bootstrap-sass\js\bootstrap-transition.js
- app\bower_components\bootstrap-sass\js\bootstrap-button.js
- app\bower_components\bootstrap-sass\js\bootstrap-popover.js
- app\bower_components\bootstrap-sass\js\bootstrap-typeahead.js
- app\bower_components\bootstrap-sass\js\bootstrap-carousel.js
- app\bower_components\bootstrap-sass\js\bootstrap-scrollspy.js
- app\bower_components\bootstrap-sass\js\bootstrap-collapse.js
- app\bower_components\bootstrap-sass\js\bootstrap-tab.js

Found a block:
<!-- build:js scripts/modules.js -->
<script src="bower_components/angular-resource/angular-resource.js"></script>
<script src="bower_components/angular-cookies/angular-cookies.js"></script>
<script src="bower_components/angular-sanitize/angular-sanitize.js"></script>
<!-- endbuild -->
Updating config with the following assets:
- app\bower_components\angular-resource\angular-resource.js
- app\bower_components\angular-cookies\angular-cookies.js
- app\bower_components\angular-sanitize\angular-sanitize.js

Found a block:
<!-- build:js({.tmp,app}) scripts/scripts.js -->
<script src="scripts/app.js"></script>
<script src="scripts/controllers/main.js"></script>
<!-- endbuild -->
Updating config with the following assets:
- {.tmp,app}\scripts\app.js
- {.tmp,app}\scripts\controllers\main.js

Configuration is now:

cssmin:
{ 'dist\\styles\\main.css': 'dist\\styles\\main.css' }

concat:
{ 'dist\\styles\\main.css':
[ '.tmp\\styles\\bootstrap.css',
'.tmp\\styles\\main.css' ],
'dist\\scripts\\plugins.js':
[ 'app\\bower_components\\bootstrap-sass\\js\\bootstrap-affix.js',
'app\\bower_components\\bootstrap-sass\\js\\bootstrap-alert.js',
'app\\bower_components\\bootstrap-sass\\js\\bootstrap-dropdown.js',
'app\\bower_components\\bootstrap-sass\\js\\bootstrap-tooltip.js',
'app\\bower_components\\bootstrap-sass\\js\\bootstrap-modal.js',
'app\\bower_components\\bootstrap-sass\\js\\bootstrap-transition.js',
'app\\bower_components\\bootstrap-sass\\js\\bootstrap-button.js',
'app\\bower_components\\bootstrap-sass\\js\\bootstrap-popover.js',
'app\\bower_components\\bootstrap-sass\\js\\bootstrap-typeahead.js',
'app\\bower_components\\bootstrap-sass\\js\\bootstrap-carousel.js',
'app\\bower_components\\bootstrap-sass\\js\\bootstrap-scrollspy.js',
'app\\bower_components\\bootstrap-sass\\js\\bootstrap-collapse.js',
'app\\bower_components\\bootstrap-sass\\js\\bootstrap-tab.js' ],
'dist\\scripts\\modules.js':
[ 'app\\bower_components\\angular-resource\\angular-resource.js',
'app\\bower_components\\angular-cookies\\angular-cookies.js',
'app\\bower_components\\angular-sanitize\\angular-sanitize.js' ],
'dist\\scripts\\scripts.js':
[ '{.tmp,app}\\scripts\\app.js',
'{.tmp,app}\\scripts\\controllers\\main.js' ] }

uglify:
{ dist: { files: { '<%= yeoman.dist %>/scripts/scripts.js': [ 'dist/scripts/scripts.js' ] } },
'dist\\scripts\\plugins.js': 'dist\\scripts\\plugins.js',
'dist\\scripts\\modules.js': 'dist\\scripts\\modules.js',
'dist\\scripts\\scripts.js': 'dist\\scripts\\scripts.js' }

requirejs:
{}

Running "concurrent:dist" (concurrent) task

Running "copy:styles" (copy) task

Running "imagemin:dist" (imagemin) task

Running "coffee:dist" (coffee) task

Running "htmlmin:dist" (htmlmin) task

Running "svgmin:dist" (svgmin) task

Running "autoprefixer:dist" (autoprefixer) task
File ".tmp/styles/bootstrap.css" created.
File ".tmp/styles/main.css" created.

Running "concat:dist\styles\main.css" (concat) task
File "dist\styles\main.css" created.

Running "concat:dist\scripts\plugins.js" (concat) task
File "dist\scripts\plugins.js" created.

Running "concat:dist\scripts\modules.js" (concat) task
File "dist\scripts\modules.js" created.

Running "concat:dist\scripts\scripts.js" (concat) task
File "dist\scripts\scripts.js" created.

Running "copy:dist" (copy) task
Created 63 directories, copied 367 files

Running "cdnify:dist" (cdnify) task
Going through dist/404.html, dist/index.html to update script refs

Running "ngmin:dist" (ngmin) task
ngminifying dist/scripts/modules.js, dist/scripts/plugins.js, dist/scripts/scripts.js

Running "cssmin:dist\styles\main.css" (cssmin) task
File dist\styles\main.css created.

Running "uglify:dist" (uglify) task
File "dist/scripts/scripts.js" created.

Running "uglify:dist\scripts\plugins.js" (uglify) task
File "dist\scripts\plugins.js" created.

Running "uglify:dist\scripts\modules.js" (uglify) task
File "dist\scripts\modules.js" created.

Running "uglify:dist\scripts\scripts.js" (uglify) task
File "dist\scripts\scripts.js" created.

Running "rev:dist" (rev) task
dist/scripts/modules.js >> 6b865daa.modules.js
dist/scripts/plugins.js >> 76c21dca.plugins.js
dist/scripts/scripts.js >> ff635307.scripts.js
dist/styles/main.css >> a5c01db0.main.css

Running "usemin:html" (usemin) task

Processing as HTML - dist/404.html
Update the HTML to reference our concat/min/revved script files
Update the HTML with the new css filenames
Update the HTML with the new img filenames
Update the HTML with data-main tags
Update the HTML with the data tags
Update the HTML with background imgs, case there is some inline style
Update the HTML with anchors images
Update the HTML with reference in input

Processing as HTML - dist/index.html
Update the HTML to reference our concat/min/revved script files
<script src="scripts/plugins.js" changed to <script src="scripts/76c21dca.plugins.js"
<script src="scripts/modules.js" changed to <script src="scripts/6b865daa.modules.js"
<script src="scripts/scripts.js" changed to <script src="scripts/ff635307.scripts.js"
Update the HTML with the new css filenames
<link rel="stylesheet" href="styles/main.css" changed to <link rel="stylesheet" href="styles/a5c01db0.main.css"
Update the HTML with the new img filenames
Update the HTML with data-main tags
Update the HTML with the data tags
Update the HTML with background imgs, case there is some inline style
Update the HTML with anchors images
Update the HTML with reference in input

Processing as HTML - dist/views/main.html
Update the HTML to reference our concat/min/revved script files
Update the HTML with the new css filenames
Update the HTML with the new img filenames
Update the HTML with data-main tags
Update the HTML with the data tags
Update the HTML with background imgs, case there is some inline style
Update the HTML with anchors images
Update the HTML with reference in input

Running "usemin:css" (usemin) task

Processing as CSS - dist/styles/a5c01db0.main.css
Update the CSS with new img filenames

Done, but with warnings.

Elapsed time
jshint:all 69ms
clean:dist 593ms
useminPrepare:html 49ms
concurrent:dist 2s
autoprefixer:dist 65ms
concat:dist\scripts\scripts.js 26ms
copy:dist 475ms
ngmin 21ms
ngmin:dist 210ms
uglify:dist 37ms
uglify:dist\scripts\plugins.js 252ms
uglify:dist\scripts\modules.js 76ms
usemin:html 313ms
usemin:css 82ms
Total 5s

有了工具的支持,开发效率就是事半功倍了,前提是你要知道如何善用这些工具!

转载请注明出处:
http://blog.fens.me/angularjs-yeoman-project/

打赏作者

Yeoman自动构建js项目

从零开始nodejs系列文章,将介绍如何利Javascript做为服务端脚本,通过Nodejs框架web开发。Nodejs框架是基于V8的引擎,是目前速度最快的Javascript引擎。chrome浏览器就基于V8,同时打开20-30个网页都很流畅。Nodejs标准的web开发框架Express,可以帮助我们迅速建立web站点,比起PHP的开发效率更高,而且学习曲线更低。非常适合小型网站,个性化网站,我们自己的Geek网站!!

关于作者

  • 张丹(Conan), 程序员Java,R,PHP,Javascript
  • weibo:@Conan_Z
  • blog: http://blog.fens.me
  • email: bsspirit@gmail.com

转载请注明出处:
http://blog.fens.me/nodejs-yeoman-intro/
yeoman

前言
有一种技术可以提高我们的工作效率,可以让我们专心做我们擅长的事,可以屏蔽复杂性,可以规范我们的架构和我们的代码,可以让我们的享受编程的乐趣。Yeoman可以做到。

很多年以前,rails刚刚出世,伴随着一个新的名词“脚手架(scaffolding)”出现了。脚手架是一种提高开发效率的工具的代名词。随后,各种编程语言都开始实现自己的“脚手架”工具。Maven重新构造了Java的世界,改变了几千万的开发者对于Java项目构建的认识。Yeoman在Javascript领域正做着同样的事情。

看着各种工具,各种语言,都在飞跃式的进化。做为一个开发者,我每天都在为变化而惊喜!

目录

  1. Yeoman介绍
  2. Yeoman工具包yo命令
  3. Yeoman工具包yo – 快速构建一个web项目
  4. Yeoman工具包bower,grunt的组合用法

1. Yeoman介绍

Yeoman是Google的团队和外部贡献者团队合作开发的,他的目标是通过Grunt(一个用于开发任务自动化的命令行工具)和Bower(一个HTML、CSS、Javascript和图片等前端资源的包管理器)的包装为开发者创建一个易用的工作流。

Yeoman主要有三部分组成:yo(脚手架工具)、grunt(构建工具)、bower(包管理器)。这三个工具是分别独立开发的,但是需要配合使用,来实现我们高效的工作流模式。

2. Yeoman工具包yo命令

yo插件都是通过npm, Node.js包管理器安装和管理的.

我的系统环境

  • win7 64bit
  • Nodejs:v0.10.5
  • Npm:1.2.19
~ D:\workspace\javascript>node -v
v0.10.5

~ D:\workspace\javascript>npm -v
1.2.19

在系统中,我们已经安装好了Nodejs和npm。win7安装nodejs请参考文章:Nodejs开发框架Express3.0开发手记–从零开始

全局安装yo

~ D:\workspace\javascript>npm install -g yo

如果你还没有安装grunt,bower,也需要一起安装

~ D:\workspace\javascript>npm install -g grunt-cli bower

接下我们看一下yo命令行操作
1). 通过help查看帮助


~ D:\workspace\javascript>yo --help
Yeoman is a mask worn by the following members of the open-source community:

  Paul Irish, Addy Osmani, Mickael Daniel, Sindre Sorhus, Eric Bidelman,
  Frederick Ros, Brian Ford, Pascal Hartig, Stephen Sawchuk, and countless
  other contributors.

Usage: yo GENERATOR [args] [options]

General options:
  -h, --help     # Print generator's options and usage
  -f, --force    # Overwrite files that already exist

Please choose a generator below.
Angular
  angular:app
  angular:common
  angular:constant
  angular:controller
  angular:decorator
  angular:directive
  angular:factory
  angular:filter
  angular:main
  angular:provider
  angular:route
  angular:service
  angular:value
  angular:view

Karma
  karma:app

Mocha
  mocha:app
  mocha:generator

Webapp
  webapp:app

yo的命令很简单:yo GENERATOR,例如:yo webapp, yo angular
Please choose a generator below: 下面列出了我的系统中,已经安装的generator的库,例如:Angular,Karma,Mocha,Webapp

2). 查询yo的支持库


~ D:\workspace\javascript>yo
Yeoman is a mask worn by the following members of the open-source community:

  Paul Irish, Addy Osmani, Mickael Daniel, Sindre Sorhus, Eric Bidelman,
  Frederick Ros, Brian Ford, Pascal Hartig, Stephen Sawchuk, and countless
  other contributors.

[?] What would you like to do? (Use arrow keys)
 > Install a generator
   Find some help
   Get me out of here!

命令行会提示,我们想要的操作。这里选择”Install a generator”


[?] What would you like to do? Install a generator
[?] Search NPM for generators:web

系统继续提示,我们要查找的包,我们输入web

3). 安装generator-webapp库


[?] Here's what I found. Install one? (Use arrow keys)
 > generator-armadillo
   generator-bones
   generator-btapp
   generator-fe
   generator-flight
   generator-hazdev-webapp
   generator-hbswebapp
   generator-html5-site
   generator-jing
   generator-lessapp
   generator-nodestrap
   generator-sails
   generator-server-configs
   generator-starter
   generator-starttter
   generator-ultimate
   generator-webapp
   generator-webapp-bfytw
   generator-webapp-fintan
   generator-weblog
   generator-website
   Search again
   Return home

yo列出了,所有在官方已经注册的,web关键字相关的包,我们选择“generator-webapp”

yo通过npm开始下载generator-webapp安装包


[?] What would you like to do? Install a generator
[?] Search NPM for generators: web
[?] Here's what I found. Install one? generator-webapp

generator-webapp@0.2.7 D:\toolkit\nodejs\node_modules\generator-webapp
├── cheerio@0.12.1 (entities@0.3.0, underscore@1.4.4, htmlparser2@3.1.4, cheerio-select@0.0.3)
└── yeoman-generator@0.12.3 (dargs@0.1.0, diff@1.0.5, debug@0.7.2, async@0.2.9, mime@1.2.11, mkdirp@0.3.5, isbinaryfi
le@0.1.9, underscore.string@2.3.3, shelljs@0.1.4, iconv-lite@0.2.11, lodash@1.3.1, rimraf@2.1.4, nopt@2.1.2, cli-table@0
.2.0, tar@0.1.18, glob@3.2.6, inquirer@0.2.4, request@2.21.0)

I just installed your generator by running:
    npm install -g generator-webapp

然后,我们退出yo命令行,选择“Get me out of here!”


[?] What would you like to do? Get me out of here!

Bye from us! Chat soon.
            Addy Osmani
          Sindre Sorhus
        Brian Ford
     Eric Bidelman
              Paul Irish
     Mickael Daniel
          Pasca1 Hartig
      Stephen S.wchuk
    Frederick R0s

上面的退出的文字是开发者的名字,很有意思一点是,竖着看最中间一行的文字排列是,yeoman1.0,也就是yeoman这个项目的得名了。

4). 注:上面的过程,也可以直接用命令

npm install -g generator-webapp

3. Yeoman工具包yo – 快速构建一个web项目

当我们安装了generator-webapp后,我们就可以,以非常优雅的方式来构建工程了。

1). 创建nodejs-yo目录,并构建webapp工程


~ D:\workspace\javascript>mkdir nodejs-yo
~ D:\workspace\javascript>cd nodejs-yo
~ D:\workspace\javascript\nodejs-yo>yo webapp

     _-----_
    |       |
    |--(o)--|   .--------------------------.
   `---------´  |    Welcome to Yeoman,    |
    ( _´U`_ )   |   ladies and gentlemen!  |
    /___A___\   '__________________________'
     |  ~  |
   __'.___.'__
 ´   `  |° ´ Y `

Out of the box I include HTML5 Boilerplate, jQuery and Modernizr.
[?] What more would you like?
  [ ] Twitter Bootstrap for Sass
 >[X] RequireJS
  [X] Autoprefixer for your CSS

对选项的解释:

  • Twitter Bootstrap for Sass:SASS是一种CSS的开发工具,提供了许多便利的写法,大大节省了设计者的时间,使得CSS的开发,变得简单和可维护。
  • RequireJS 可以帮助用户异步按需的加载 JavaScript 代码,并解决 JavaScript 模块间的依赖关系,提升了前端代码的整体质量和性能。
  • Autoprefixer解析CSS文件并且添加浏览器前缀到CSS规则里,使用Can I Use的数据来决定哪些前缀是需要的。

上面3个选择,由于Sass是基于Ruby的,我本机没有安装ruby,取消Twitter Bootstrap for Sass的勾选。

2). 查看安装日志:


Out of the box I include HTML5 Boilerplate, jQuery and Modernizr.
[?] What more would you like? RequireJS, Autoprefixer for your CSS
   create Gruntfile.js
   create package.json
   create .gitignore
   create .gitattributes
   create .bowerrc
   create bower.json
   create .jshintrc
   create .editorconfig
   create app/favicon.ico
   create app/404.html
   create app/robots.txt
   create app/.htaccess
   create app/styles/main.css
   create app/scripts/app.js
   create app/scripts/main.js
   create app/index.html
   create app/scripts/hello.coffee
   invoke   mocha:app
   create     test\index.html
   create     test\lib\chai.js
   create     test\lib\expect.js
   create     test\lib\mocha\mocha.css
   create     test\lib\mocha\mocha.js
   create     test\spec\test.js

I'm all done. Running bower install & npm install for you to install the required dependencies. If this fails, try running the command yourself.

项目骨架已经建好了。还包括了很多的配置文件.gitignore,bower.json,Gruntfile.js,favicon.ico, robots.txt, .htaccess。太神奇了,Cool!!

一下子装备都齐全了,打仗的事就交给我们自己吧。

4. Yeoman工具包bower,grunt的组合用法

有关bower的介绍,请参考:bower解决js的依赖管理
有关grunt的介绍,请参考:grunt让Nodejs规范起来

1). 使用bower命令查看项目依赖:


~ D:\workspace\javascript\nodejs-yo>bower list
bower check-new     Checking for new versions of the project dependencies..
nodejs-yo#0.0.0 D:\workspace\javascript\nodejs-yo
├── jquery#1.9.1 (latest is 2.0.3)
├── modernizr#2.6.2
└── requirejs#2.1.8

我们发现生成的webapp中,有4个依赖库,jquery,modernizr,requirejs。

2). 使用grunt命令执行单元测试


D:\workspace\javascript\nodejs-yo>grunt test
Running "clean:server" (clean) task
Cleaning ".tmp"...OK

Running "concurrent:test" (concurrent) task

Running "copy:styles" (copy) task

Running "coffee:dist" (coffee) task

Running "autoprefixer:dist" (autoprefixer) task
File ".tmp/styles/main.css" created.

Running "connect:test" (connect) task
Starting connect web server on localhost:9000.

Running "mocha:all" (mocha) task
Testing: http://localhost:9000/index.html

  .

  1 test complete (107 ms)

>> 1 passed! (0.11s)

Done, without errors.

3). 使用grunt命令启动一个node服务器


~ D:\workspace\javascript\nodejs-yo>grunt server
Running "server" task

Running "clean:server" (clean) task

Running "concurrent:server" (concurrent) task
    Warning: Running "compass:dist" (compass) task
Warning: You need to have Ruby and Compass installed and in your system PATH for this task to work. More info: https://g
ithub.com/gruntjs/grunt-contrib-compass Use --force to continue. Use --force to continue.

    Aborted due to warnings.

启动时,我们发现报错了。由于我没有装Ruby的环境,所以compass:dist的命令不能运行。

强制启动grunt


~ D:\workspace\javascript\nodejs-yo>grunt server --force
D:\workspace\javascript\nodejs-yo>grunt server --force
Running "server" task

Running "clean:server" (clean) task
Cleaning ".tmp"...OK

Running "concurrent:server" (concurrent) task

Running "coffee:dist" (coffee) task
    Warning: Running "compass:dist" (compass) task
Warning: You need to have Ruby and Compass installed and in your system PATH for this task to work. More info: https://
ithub.com/gruntjs/grunt-contrib-compass Use --force to continue. Used --force, continuing.

Running "compass:dist" (compass) task
Warning: You need to have Ruby and Compass installed and in your system PATH for this task to work. More info: https://
ithub.com/gruntjs/grunt-contrib-compass Use --force to continue.

Running "copy:styles" (copy) task

Running "autoprefixer:dist" (autoprefixer) task
File ".tmp/styles/main.css" created.

Running "connect:livereload" (connect) task
Starting connect web server on localhost:9000.

Running "open:server" (open) task

Running "watch" task
Waiting...

后台日志显示了“watch”的task,说明代码文件被监控着,如有修改网页会自动更新。

浏览器被自动打开,http://localhost:9000/
yeoman1

4). 修改app/index.html代码,增加对canvas的检查。


~ vi app/index.html

<script>
window.onload = function () {
if (canvasSupported()) {
alert('canvas supported');
}
};

function canvasSupported() {
var canvas = document.createElement('canvas');
return (canvas.getContext && canvas.getContext('2d'));
}
</script>

浏览器显示:
yeoman2

5). 通过bower增加库jquery-pjax


~ D:\workspace\javascript\nodejs-yo>bower install jquery-pjax
bower jquery-pjax#*         not-cached git://github.com/defunkt/jquery-pjax.git#*
bower jquery-pjax#*            resolve git://github.com/defunkt/jquery-pjax.git#*
bower jquery-pjax#*           download https://github.com/defunkt/jquery-pjax/archive/v1.7.3.tar.gz
bower jquery-pjax#*            extract archive.tar.gz
bower jquery-pjax#*           resolved git://github.com/defunkt/jquery-pjax.git#1.7.3
bower jquery#>=1.8              cached git://github.com/components/jquery.git#2.0.3
bower jquery#>=1.8            validate 2.0.3 against git://github.com/components/jquery.git#>=1.8
bower jquery-pjax#~1.7.3       install jquery-pjax#1.7.3

jquery-pjax#1.7.3 app\bower_components\jquery-pjax
└── jquery#2.0.3

~ D:\workspace\javascript\nodejs-yo>bower list
bower check-new     Checking for new versions of the project dependencies..
nodejs-yo#0.0.0 D:\workspace\javascript\nodejs-yo
├── jquery#1.9.1 (latest is 2.0.3)
├─┬ jquery-pjax#1.7.3 extraneous
│ └── jquery#1.9.1 (2.0.3 available)
├── modernizr#2.6.2
└── requirejs#2.1.8

Yeoman已经成功地帮助我们打造出一个项目的原型了,接下来我们可以针对自己的项目,自己熟悉的框架组合,构建一个属于自己的骨架模板,并发布到Yeoman的generator库中。

后面的内容会更精彩,敬请期待…!!

转载请注明出处:
http://blog.fens.me/nodejs-yeoman-intro/

打赏作者