schematic-bp-schematic-calling-schematic.ts

import {
  Rule,
  SchematicContext,
  Tree,
  chain
} from '@angular-devkit/schematics';

import { Schema } from './schema.model.ts';

export function myAwesomeSchematic(_options: Schema): Rule {
  return (tree: Tree, _context: SchematicContext) => {
    return chain([
      addDependencies(options),
      addRequiredFiles(options)
    ])(tree, _context);
  };
}

function addDependencies(options: Schema): Rule {
  return (tree: Tree, _context: SchematicContext) => {
    // this tells the schematic to run the add-dependencies schemtic found in collection.json as a task
    _context.addTask(new RunSchematicTask('add-dependencies', options));
    return tree;
  };

function addRequiredFiles(options: Schema): Rule {
  return (tree: Tree, _context: SchematicContext) => {
    // this tells the schematic to run the add-files schemtic found in collection.json
    _context.addTask(new RunSchematicTask('add-files', options));
    return tree;
  };