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    1.0.0-beta.32.2 • Public • Published

    Angular CLI

    Join the chat at https://gitter.im/angular/angular-cli

    Build Status Dependency Status devDependency Status npm

    Prototype of a CLI for Angular applications based on the ember-cli project.


    This project is very much still a work in progress.

    The CLI is now in beta. If you wish to collaborate while the project is still young, check out our issue list.

    Before submitting new issues, have a look at issues marked with the type: faq label.

    Webpack update

    We changed the build system between beta.10 and beta.14, from SystemJS to Webpack. And with it comes a lot of benefits. To take advantage of these, your app built with the old beta will need to migrate.

    You can update your beta.10 projects to beta.14 by following these instructions.


    Both the CLI and generated project have dependencies that require Node 6.9.0 or higher, together with NPM 3 or higher.

    Table of Contents


    BEFORE YOU INSTALL: please read the prerequisites

    npm install -g @angular/cli


    ng help

    Generating and serving an Angular project via a development server

    ng new PROJECT_NAME
    ng serve

    Navigate to http://localhost:4200/. The app will automatically reload if you change any of the source files.

    You can configure the default HTTP port and the one used by the LiveReload server with two command-line options :

    ng serve --host --port 4201 --live-reload-port 49153

    Generating Components, Directives, Pipes and Services

    You can use the ng generate (or just ng g) command to generate Angular components:

    ng generate component my-new-component
    ng g component my-new-component # using the alias 
    # components support relative path generation 
    # if in the directory src/app/feature/ and you run 
    ng g component new-cmp
    # your component will be generated in src/app/feature/new-cmp 
    # but if you were to run 
    ng g component ../newer-cmp
    # your component will be generated in src/app/newer-cmp 

    You can find all possible blueprints in the table below:

    Scaffold Usage
    Component ng g component my-new-component
    Directive ng g directive my-new-directive
    Pipe ng g pipe my-new-pipe
    Service ng g service my-new-service
    Class ng g class my-new-class
    Interface ng g interface my-new-interface
    Enum ng g enum my-new-enum
    Module ng g module my-module

    Updating Angular CLI

    To update Angular CLI to a new version, you must update both the global package and your project's local package.

    Global package:

    npm uninstall -g angular-cli @angular/cli
    npm cache clean
    npm install -g @angular/cli@latest

    Local project package:

    rm -rf node_modules dist # use rmdir on Windows 
    npm install --save-dev @angular/cli@latest
    npm install
    ng update

    Running ng update will check for changes in all the auto-generated files created by ng new and allow you to update yours. You are offered four choices for each changed file: y (overwrite), n (don't overwrite), d (show diff between your file and the updated file) and h (help).

    Carefully read the diffs for each code file, and either accept the changes or incorporate them manually after ng update finishes.

    The main cause of errors after an update is failing to incorporate these updates into your code.

    You can find more details about changes between versions in CHANGELOG.md.

    Development Hints for hacking on Angular CLI

    Working with master

    git clone https://github.com/angular/angular-cli.git
    cd angular-cli
    npm link

    npm link is very similar to npm install -g except that instead of downloading the package from the repo, the just cloned angular-cli/ folder becomes the global package. Any changes to the files in the angular-cli/ folder will immediately affect the global @angular/cli package, allowing you to quickly test any changes you make to the cli project.

    Now you can use @angular/cli via the command line:

    ng new foo
    cd foo
    npm link @angular/cli
    ng serve

    npm link @angular/cli is needed because by default the globally installed @angular/cli just loads the local @angular/cli from the project which was fetched remotely from npm. npm link @angular/cli symlinks the global @angular/cli package to the local @angular/cli package. Now the angular-cli you cloned before is in three places: The folder you cloned it into, npm's folder where it stores global packages and the Angular CLI project you just created.

    You can also use ng new foo --link-cli to automatically link the @angular/cli package.

    Please read the official npm-link documentation and the npm-link cheatsheet for more information.




    npm i @angular/[email protected]





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