utils/use_require_helpers.js

   1 // writes helpers require for vnc.html (they should output app.js)
   2 const fs = require('fs');
   3 const path = require('path');
   4
   5 // util.promisify requires Node.js 8.x, so we have our own
   6 function promisify(original) {
   7     return function promiseWrap() {
   8         const args = Array.prototype.slice.call(arguments);
   9         return new Promise((resolve, reject) => {
  10             original.apply(this, args.concat((err, value) => {
  11                 if (err) return reject(err);
  12                 resolve(value);
  13             }));
  14         });
  15     };
  16 }
  17
  18 const writeFile = promisify(fs.writeFile);
  19
  20 module.exports = {
  21     'amd': {
  22         appWriter: (baseOutPath, scriptBasePath, outPath) => {
  23             // setup for requirejs
  24             const uiPath = path.relative(baseOutPath,
  25                                          path.join(scriptBasePath, 'app', 'ui'));
  26             return writeFile(outPath, `requirejs(["${uiPath}"], function (ui) {});`)
  27                 .then(() => {
  28                     console.log(`Please place RequireJS in ${path.join(scriptBasePath, 'require.js')}`);
  29                     const requirePath = path.relative(baseOutPath,
  30                                                       path.join(scriptBasePath, 'require.js'));
  31                     return [ requirePath ];
  32                 });
  33         },
  34     },
  35     'commonjs': {
  36         appWriter: (baseOutPath, scriptBasePath, outPath) => {
  37             const browserify = require('browserify');
  38             const b = browserify(path.join(scriptBasePath, 'app/ui.js'), {});
  39             return promisify(b.bundle).call(b)
  40                 .then(buf => writeFile(outPath, buf))
  41                 .then(() => []);
  42         },
  43         removeModules: true,
  44     },
  45     'systemjs': {
  46         appWriter: (baseOutPath, scriptBasePath, outPath) => {
  47             const uiPath = path.relative(baseOutPath,
  48                                          path.join(scriptBasePath, 'app', 'ui.js'));
  49             return writeFile(outPath, `SystemJS.import("${uiPath}");`)
  50                 .then(() => {
  51                     console.log(`Please place SystemJS in ${path.join(scriptBasePath, 'system-production.js')}`);
  52                     const systemjsPath = path.relative(baseOutPath,
  53                                                        path.join(scriptBasePath, 'system-production.js'));
  54                     return [ systemjsPath ];
  55                 });
  56         },
  57     },
  58     'umd': {
  59     },
  60 };