Exercise 3: context

Use SchematicContext.logger

1. Define a new constant variable named logger that is a reference to the SchematicContext.logger instance.
2. Use the logger.debug() method
3. Use the logger.info() method
4. Use the logger.warn() method
5. Use the logger.error() method

For example:

export function schematicStarter(_options: any): Rule {
  return (tree: Tree, _context: SchematicContext) => {
	const logger = _context.logger;
    
	logger.debug('This is a debug message');

	return tree;
  };
}

Build the project

npm run build

Execute the hello-world schematic using the CLI

schematics .:hello-world --dry-run=false

You should see the info, warn, and error messages print out.

Bonus

• Execute the schematics command by itself for a list of additional options
• Did the debug logger not print out? Run the schematic with with the verbose flag

schematics .:hello-world --dry-run=false --verbose