utils/use_require_helpers.js

   1 // writes helpers require for vnc.html (they should output app.js)
   2 var fs = require('fs');
   3 var path = require('path');
   4
   5 // util.promisify requires Node.js 8.x, so we have our own
   6 function promisify(original) {
   7     return function () {
   8         let obj = this;
   9         let args = Array.prototype.slice.call(arguments);
  10         return new Promise((resolve, reject) => {
  11             original.apply(obj, args.concat((err, value) => {
  12                 if (err) return reject(err);
  13                 resolve(value);
  14             }));
  15         });
  16     }
  17 }
  18
  19 const writeFile = promisify(fs.writeFile);
  20
  21 module.exports = {
  22     'amd': {
  23         appWriter: (base_out_path, script_base_path, out_path) => {
  24             // setup for requirejs
  25             let ui_path = path.relative(base_out_path,
  26                                         path.join(script_base_path, 'app', 'ui'));
  27             return writeFile(out_path, `requirejs(["${ui_path}"], function (ui) {});`)
  28             .then(() => {
  29                 console.log(`Please place RequireJS in ${path.join(script_base_path, 'require.js')}`);
  30                 let require_path = path.relative(base_out_path,
  31                                                  path.join(script_base_path, 'require.js'))
  32                 return [ require_path ];
  33             });
  34         },
  35         noCopyOverride: () => {},
  36     },
  37     'commonjs': {
  38         optionsOverride: (opts) => {
  39             // CommonJS supports properly shifting the default export to work as normal
  40             opts.plugins.unshift("add-module-exports");
  41         },
  42         appWriter: (base_out_path, script_base_path, out_path) => {
  43             var browserify = require('browserify');
  44             var b = browserify(path.join(script_base_path, 'app/ui.js'), {});
  45             return promisify(b.bundle).call(b)
  46             .then((buf) => writeFile(out_path, buf))
  47             .then(() => []);
  48         },
  49         noCopyOverride: () => {},
  50         removeModules: true,
  51     },
  52     'systemjs': {
  53         appWriter: (base_out_path, script_base_path, out_path) => {
  54             let ui_path = path.relative(base_out_path,
  55                                         path.join(script_base_path, 'app', 'ui.js'));
  56             return writeFile(out_path, `SystemJS.import("${ui_path}");`)
  57             .then(() => {
  58                 console.log(`Please place SystemJS in ${path.join(script_base_path, 'system-production.js')}`);
  59                 // FIXME: Should probably be in the legacy directory
  60                 let promise_path = path.relative(base_out_path,
  61                                                  path.join(base_out_path, 'vendor', 'promise.js'))
  62                 let systemjs_path = path.relative(base_out_path,
  63                                                   path.join(script_base_path, 'system-production.js'))
  64                 return [ promise_path, systemjs_path ];
  65             });
  66         },
  67         noCopyOverride: (paths, no_copy_files) => {
  68             no_copy_files.delete(path.join(paths.vendor, 'promise.js'));
  69         },
  70     },
  71     'umd': {
  72         optionsOverride: (opts) => {
  73             // umd supports properly shifting the default export to work as normal
  74             opts.plugins.unshift("add-module-exports");
  75         },
  76     },
  77 }