xp-forge / xp-forge/web

Automatic Workspace folders

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Dominant language
PHP
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Description

Chrome has introduced a feature (currently still behind a feature-flag) to automatically discover workspace folders. What this enables is an edit-save-see-without-refreshing experience for resources like CSS files. This might be a good addition to the development server when this comes out from behind a flag.

How it works

  • The development server must deliver a file /.well-known/appspecific/com.chrome.devtools.json and specify the workspace's root directory in it
  • When the user opens the devtools, Chrome detected the folder and asks the user for consent (see below)
  • After the user accepts, resources can either be edited and saved in the devtools - or, the other way around, edited and the filesystem, with changes instantly appearing in the browser (as long as the devtool window is open)

The com.chrome.devtools.json file

{
  "workspace" : {
    "root" : "/path/to/web/root",
    "uuid" : "6e29a6df-42e1-4f39-9a1b-6af7546a8ebf"
  }
}

Discovery and consent

Devtools workspace consent

Editing experience

Editor and browser

Proof of concept

use util\UUID;
use web\Application;
use web\handler\FilesFrom;

class Hello extends Application {

  public function routes() {
    $workspace= json_encode(['workspace' => [
      'root' => (string)$this->environment->webroot(),
      'uuid' => (string)UUID::randomUUID()
    ]]);
    return [
      '/(style.css|favicon.ico)' => new FilesFrom($this->environment->webroot()),
      '/.well-known/appspecific/com.chrome.devtools.json' => function($req, $res) use($workspace) {
        $res->answer(200);
        $res->send($workspace, 'application/json; charset=utf-8');
      },
      '/' => function($req, $res) {
        $res->answer(200);
        $html= sprintf(<<<'HTML'
          <html lang="en">
          <head>
            <link rel="stylesheet" href="/style.css">
          </head>
          <body>
            <h1>Hello %s</h1>
          </body>
          </html>
          HTML,
          htmlspecialchars($req->param('name', 'Guest'))
        );
        $res->send($html, 'text/html; charset=utf-8');
      },
    ];
  }
}

See also:

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

The issue does not name a file or test; start by locating the development server's routing entry point and reviewing how it serves static and well-known paths. Compare the routing behavior with Chrome's automatic workspace folder specification, then verify that the endpoint can return the workspace root and UUID as JSON.

Written by the indexing model from the issue text.

Assessment

Tech stack
php
Domain
backend, devtools
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
32/100

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