io3fix/tasks/rollup.config.js

toolkit for interior apps

import json from 'rollup-plugin-json'
import commonjs from 'rollup-plugin-commonjs'
import resolve from 'rollup-plugin-node-resolve'
import less from 'rollup-plugin-less'
import babel from 'rollup-plugin-babel'
const preamble = require('./preamble.js')

// from https://github.com/mrdoob/three.js/blob/86424d9b318f617254eb857b31be07502ea27ce9/rollup.config.js
function glsl () {
  return {
    transform(glsl, id) {
      if (/\.glsl$/.test(id) === false) return
			// remove comments and fix new line chars
      var shaderAsText = glsl
        .replace(/[ \t]*\/\/.*\n/g, '') // remove //
        .replace(/[ \t]*\/\*[\s\S]*?\*\//g, '') // remove /* */
        .replace(/\n{2,}/g, '\n') // # \n+ to \n
      //
      var shaderAsBase64 = 'data:text/plain;base64,' + new Buffer(shaderAsText).toString('base64')
			//
      var moduleApi = { text: shaderAsText, base64: shaderAsBase64 }
      // add module wrapper
			var code = 'export default ' + JSON.stringify(moduleApi) + ';'
      return {
        code: code,
        map: {mappings: ''}
      }
    }
  }
}

// https://rollupjs.org/#javascript-api
export default {
  entry: 'src/io3d.js',
  indent: '\t',
  sourceMap: true,
  plugins: [
    json(),
    glsl(),
    less({
      include: [ '**/*.less', '**/*.css' ],
      insert: false, // true does insert css to head automatically
      output: function(css) { return css; } // avoids css file being created
    }),
    commonjs({
      // only modules used in browser need to be bundled.
      // modules only used in node envirenments will be loaded
      // during runtime using require
      include: [
        'node_modules/js-logger/**',
        'node_modules/bluebird/**',
        'node_modules/rxjs/**',
        'node_modules/lodash/**',
        'node_modules/performance-now/**'
      ]
    }),
    (function(){
      if (process.env.ROLLUP_USE_BABEL) {
        // use babel
        if (!process.env.BABEL_ENV) {
          // By API specs Babel will fallback to "development"
          // https://babeljs.io/docs/usage/api/
          console.warn('"BABEL_ENV" env variable not set. Babel default fallback = "development"')
        }
        return babel()
      } else {
        // return empty plugin doing nothing
        return { transform: function() {} }
      }
    })(),
    resolve()
  ],
  context: 'global', // required for whatwg-fetch module
  targets: [
    {
      format: 'umd',
      banner: preamble.text,
      intro: `var BUILD_DATE='${preamble.date}', GIT_BRANCH = '${preamble.gitBranchName}', GIT_COMMIT = '${preamble.gitCommitSha1}'`,
      moduleName: 'io3d', // and global object name in browser environment
      globals: {
        THREE: 'THREE'
      },
      dest: 'build/3dio.js'
    }
  ],
  onwarn (warning) {
    // skip eval warnings (bluebird module uses eval)
    if (warning.code === 'EVAL') return
    // log everything else
    console.warn(warning.message)
  }
}