Angular2 library command line tool

Making a testable library as a stand-alone application. Live debugging of typescript ( webpack ).

Install

npm install -g ng2-lib-cli-tools

Usage

 
  Usage: nglib [options] [command]
 
 
  Options:
 
    -V, --version          output the version number
    -m, --module <module>  Path to main module with new and install
    -s, --skipnpm          Skip npm commands ( install, build, test ) with new and install
    -h, --help             output usage information
 
 
  Commands:
 
    vscode                       Add vscode chrome launcher
    new [directory]              Create an angular2 library with karma testing environment
    install [directory]          Update or install karma testing environment in an exixting library
    i [directory]
    generate <blueprint> [name]  Create blueprints ([cl]ass, [c]omponent, [d]irective, [e]num, [g]uard, [i]nterface, [m]odule, [p]ipe, [s]ervice)
    g <blueprint> [name]
 

npm scripts

Build the library :

npm run build
# Build every time a file is modified 
npm run build:watch

Run tests :

npm test

Consuming the library in development

my-lib is an Angular2 library

my-app is an Angular2 application who use the library

• Add the library to npm libs

  cd to the library directory, then type :

  npm link

• Add the link to the library

  Set up a path mapping in the application /src/tsconfig.app.json file :

  {
      "compilerOptions": {
          "paths": {
              "@angular/*": [
                  "../node_modules/@angular/*"
              ]
          }
      }
  }

  cd to the application directory, then type :

  npm link my-lib

Serve or test the application. cd to the library directory, then run the build:watch command :

npm run build:watch

Make change in a file in the library /src directory will be detected and restart the served application.

Project structure

my-lib
├── .vscode
│   └── launch.json
├── dist
├── gulp
│   ├── inline-resources.js
│   └── tsconfig.build.json
├── karma
│   ├── main.ts
│   ├── polyfills.ts
│   ├── test.ts
│   ├── tsconfig.json
│   └── tsconfig.spec.json
├── src
│   └── my-lib.module.ts
├── test
│   └── my-lib.spec.ts
├── .angular-cli.json
├── gulpfile.js
├── karma.conf.js
├── package-lock.json
├── package.json
└── tsconfig.json

src/

The library source files.

No index.ts file is required, they will be generated during the build.

test/

The test cases directory, not *.spec.ts files will be ignored.

vscode

If your project is inside a sub directory of the workspace, you have to copy the generated configuration to the root of the workspace, and define the webroot in the launch.json file :

{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "Launch Chrome",
            "webRoot": "${workspaceRoot}/dir-to-library",
        },
        {
            "name": "Attach to Chrome",
            "webRoot": "${workspaceRoot}/dir-to-library"
        }
    ]
}