Installing the schematics CLI

The schematics CLI is a command-line interface that we can use to interact with the schematics API. To install it, run the following npm command:

npm install -g @angular-devkit/schematics-cli

The preceding command will install the @angular-devkit/schematics-cli npm package globally on our system. We can then use the schematics executable to create a new schematics collection:

schematics blank my-schematics

The previous command will generate a schematics project called my-schematics. It contains a schematic with the same name by default inside the src folder. A schematic contains the following files:

• collection.json: A JSON schema that describes the schematics that belong to the my-schematics collection
• my-schematics\index.ts: The main entry point of the my-schematics schematic
• my-schematics\index_spec.ts: The unit test file of the main entry point of the my-schematics schematic

The JSON schema file of the collection contains...