text: /**
   * @license
   * Copyright 2018 Google LLC
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *   http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  import json from '@rollup/plugin-json';
  import pkg from './package.json';
  import typescript from 'typescript';
  import replace from 'rollup-plugin-replace';
  import typescriptPlugin from 'rollup-plugin-typescript2';
  import { generateBuildTargetReplaceConfig } from '../../scripts/build/rollup_replace_build_target';
  
  const deps = Object.keys(
    Object.assign({}, pkg.peerDependencies, pkg.dependencies)
  );
  
  /**
   * ES5 Builds
   */
  const es5BuildPlugins = [
    typescriptPlugin({
      typescript
    }),
    json()
  ];
  
  const es5Builds = [
    {
      input: 'src/index.ts',
      output: [{ file: pkg.main, format: 'cjs', sourcemap: true }],
      plugins: [
        ...es5BuildPlugins,
        replace(generateBuildTargetReplaceConfig('cjs', 5))
      ],
      external: id => deps.some(dep => id === dep || id.startsWith(`${dep}/`))
    },
    {
      input: 'src/index.ts',
      output: [{ file: pkg.esm5, format: 'es', sourcemap: true }],
      plugins: [
        ...es5BuildPlugins,
        replace(generateBuildTargetReplaceConfig('esm', 5))
      ],
      external: id => deps.some(dep => id === dep || id.startsWith(`${dep}/`))
    }
  ];
  
  /**
   * ES2017 Builds
   */
  const es2017BuildPlugins = [
    typescriptPlugin({
      typescript,
      tsconfigOverride: {
        compilerOptions: {
          target: 'es2017'
        }
      }
    }),
    json({ preferConst: true })
  ];
  
  const es2017Builds = [
    {
      input: 'src/index.ts',
      output: {
        file: pkg.browser,
        format: 'es',
        sourcemap: true
      },
      plugins: [
        ...es2017BuildPlugins,
        replace(generateBuildTargetReplaceConfig('esm', 2017))
      ],
      external: id => deps.some(dep => id === dep || id.startsWith(`${dep}/`))
    },
    // sw builds
    {
      input: 'src/index.sw.ts',
      output: { file: pkg.sw, format: 'es', sourcemap: true },
      plugins: es2017BuildPlugins,
      external: id => deps.some(dep => id === dep || id.startsWith(`${dep}/`))
    }
  ];
  
  export default [...es5Builds, ...es2017Builds];
  