acdlite/recompose

import path from 'path'
import nodeResolve from 'rollup-plugin-node-resolve'
import babel from 'rollup-plugin-babel'
import replace from 'rollup-plugin-replace'
import commonjs from 'rollup-plugin-commonjs'
import { uglify } from 'rollup-plugin-uglify'
import { sizeSnapshot } from 'rollup-plugin-size-snapshot'
import { pascalCase } from 'change-case'

const { PACKAGES_SRC_DIR, PACKAGES_OUT_DIR } = require('./getPackageNames')

const packageName = process.env.PACKAGE_NAME

const libraryName = pascalCase(packageName)

const input = `./${path.join(PACKAGES_SRC_DIR, packageName, 'index.js')}`

const outDir = path.join(PACKAGES_OUT_DIR, packageName, 'dist')

const isExternal = id => !id.startsWith('.') && !id.startsWith('/')

const getBabelOptions = ({ useESModules }) => ({
  exclude: '**/node_modules/**',
  runtimeHelpers: true,
  plugins: [['@babel/transform-runtime', { useESModules }]],
})

const matchSnapshot = process.env.SNAPSHOT === 'match'

export default [
  {
    input,
    output: {
      file: `${outDir}/${libraryName}.umd.js`,
      format: 'umd',
      name: libraryName,
      globals: {
        react: 'React',
      },
    },
    external: ['react'],
    plugins: [
      nodeResolve(),
      babel(getBabelOptions({ useESModules: true })),
      commonjs(),
      replace({ 'process.env.NODE_ENV': JSON.stringify('development') }),
      sizeSnapshot({ matchSnapshot }),
    ],
  },

  {
    input,
    output: {
      file: `${outDir}/${libraryName}.min.js`,
      format: 'umd',
      name: libraryName,
      globals: {
        react: 'React',
      },
    },
    external: ['react'],
    plugins: [
      nodeResolve(),
      babel(getBabelOptions({ useESModules: true })),
      commonjs(),
      replace({ 'process.env.NODE_ENV': JSON.stringify('production') }),
      sizeSnapshot({ matchSnapshot }),
      uglify(),
    ],
  },

  {
    input,
    output: {
      file: `${outDir}/${libraryName}.cjs.js`,
      format: 'cjs',
    },
    external: isExternal,
    plugins: [babel(getBabelOptions({ useESModules: false }))],
  },

  {
    input,
    output: {
      file: `${outDir}/${libraryName}.esm.js`,
      format: 'es',
    },
    external: isExternal,
    plugins: [
      babel(getBabelOptions({ useESModules: true })),
      sizeSnapshot({ matchSnapshot }),
    ],
  },
]