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 () {
   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: (base_out_path, script_base_path, out_path) => {
  23             // setup for requirejs
  24             const ui_path = path.relative(base_out_path,
  25                                         path.join(script_base_path, 'app', 'ui'));
  26             return writeFile(out_path, `requirejs(["${ui_path}"], (ui) => {});`)
  27             .then(() => {
  28                 console.log(`Please place RequireJS in ${path.join(script_base_path, 'require.js')}`);
  29                 const require_path = path.relative(base_out_path,
  30                                                  path.join(script_base_path, 'require.js'))
  31                 return [ require_path ];
  32             });
  33         },
  34         noCopyOverride: () => {},
  35     },
  36     'commonjs': {
  37         optionsOverride: (opts) => {
  38             // CommonJS supports properly shifting the default export to work as normal
  39             opts.plugins.unshift("add-module-exports");
  40         },
  41         appWriter: (base_out_path, script_base_path, out_path) => {
  42             const browserify = require('browserify');
  43             const b = browserify(path.join(script_base_path, 'app/ui.js'), {});
  44             return promisify(b.bundle).call(b)
  45             .then(buf => writeFile(out_path, buf))
  46             .then(() => []);
  47         },
  48         noCopyOverride: () => {},
  49         removeModules: true,
  50     },
  51     'systemjs': {
  52         appWriter: (base_out_path, script_base_path, out_path) => {
  53             const ui_path = path.relative(base_out_path,
  54                                         path.join(script_base_path, 'app', 'ui.js'));
  55             return writeFile(out_path, `SystemJS.import("${ui_path}");`)
  56             .then(() => {
  57                 console.log(`Please place SystemJS in ${path.join(script_base_path, 'system-production.js')}`);
  58                 // FIXME: Should probably be in the legacy directory
  59                 const promise_path = path.relative(base_out_path,
  60                                                  path.join(base_out_path, 'vendor', 'promise.js'))
  61                 const systemjs_path = path.relative(base_out_path,
  62                                                   path.join(script_base_path, 'system-production.js'))
  63                 return [ promise_path, systemjs_path ];
  64             });
  65         },
  66         noCopyOverride: (paths, no_copy_files) => {
  67             no_copy_files.delete(path.join(paths.vendor, 'promise.js'));
  68         },
  69     },
  70     'umd': {
  71         optionsOverride: (opts) => {
  72             // umd supports properly shifting the default export to work as normal
  73             opts.plugins.unshift("add-module-exports");
  74         },
  75     },
  76 }