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Custom Angular Schematics for Libraries

This is a demo repository for the blog post "How to Use Custom Schematics to Supercharge Developer Experience".

Get Started

  • Clone this repository
  • Change to the schematics folder and run npm install
  • Run npm run build to build the schematics, or run npm run dev to build the schematics on watch mode
  • Run npm link in the schematics folder
  • Change to the demo-app folder and run npm install
  • Once the installation is complete, also run npm link ds-schematics to link the custom schematics to the demo app so that you can test the custom schematics on an Angular project

Test Schematics on Demo App

Test the Component Command

  • Run ng g ds-schematics:component --name=checkbox --standalone to generate a standalone checkbox component
CREATE src/app/checkbox/checkbox.component.scss (0 bytes)
CREATE src/app/checkbox/checkbox.component.html (0 bytes)
CREATE src/app/checkbox/checkbox.component.spec.ts (613 bytes)
CREATE src/app/checkbox/checkbox.component.ts (263 bytes)
  • Run ng g ds-schematics:component --name=checkbox to generate a component that is part of the AppModule
CREATE src/app/checkbox/checkbox.component.scss (0 bytes)
CREATE src/app/checkbox/checkbox.component.html (0 bytes)
CREATE src/app/checkbox/checkbox.component.spec.ts (613 bytes)
CREATE src/app/checkbox/checkbox.component.ts (263 bytes)
UPDATE src/app/app.module.ts (484 bytes)

Test the ng add Command

  • Run ng g ds-schematics:ng-add
  • This command updates the npm script test: jest and install Jest as a dependency

FAQ

Q: I saw this error An unhandled exception occurred: Collection "ds-schematics" cannot be resolved. when I'm running the schematics commands

A: Run npm link ds-schematics in the demo-app folder again and should resolve this issue.