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import babel from '@rollup/plugin-babel';import commonjs from '@rollup/plugin-commonjs';import json from '@rollup/plugin-json';import resolve from '@rollup/plugin-node-resolve';import bundleSize from 'rollup-plugin-bundle-size';import {terser} from 'rollup-plugin-terser';
export function disallowedImports() {  return {    resolveId: module => {      if (module === 'vega' || module === 'util' || module === 'd3') {        throw new Error('Cannot import from Vega, Node Util, or D3 in Vega-Lite.');      }      return null;    }  };}
export function debugImports() {  return {    resolveId: module => {      if (module === 'pako') {        throw new Error('Do not import pako in builds. Did you forget to remove drawDataflow?');      }      return null;    }  };}
const extensions = ['.js', '.ts'];
const outputs = [];
for (const build of ['es5', 'es6']) {  const buildFolder = build === 'es5' ? 'build-es5' : 'build';  outputs.push({    input: 'src/index.ts',    output: [      {        file: `${buildFolder}/vega-lite.js`,        format: 'umd',        sourcemap: true,        name: 'vegaLite'      },      {        file: `${buildFolder}/vega-lite.min.js`,        format: 'umd',        sourcemap: true,        name: 'vegaLite',        plugins: [terser()]      }    ],    plugins: [      disallowedImports(),      debugImports(),      resolve({browser: true, extensions}),      commonjs(),      json(),      babel({        extensions,        babelHelpers: 'bundled',        presets: [          [            '@babel/env',            {              targets: build === 'es5' ? 'defaults' : 'defaults and not IE 11'            }          ],          '@babel/typescript'        ]      }),      bundleSize()    ],    external: ['vega']  });}
export default outputs;