Web IDE & CodeSandbox

This enables JavaScripts projects to have live previews straight in the
browser without requiring any local configuration. This uses the
CodeSandbox package `sandpack` to compile it all inside of an iframe.

This feature is off by default and can be toggled on in the admin
settings. Only projects with a `package.json` and a `main` key are
supported.

Updates happen in real-time with hot-reloading. We just watch for
changes to files and then send them to `sandpack` to allow it to reload
the iframe. The iframe includes a very simple navigation bar, the text
bar is `readonly` to stop users navigating away from the preview and
the back and forward buttons just pop/splice the navigation stack
which is tracked by a listener on `sandpack`

There is a button inside the iframe which allows the user to open the
projects inside of CodeSandbox. This button is only visible on
**public** projects. On private or internal projects this button
get hidden to protect private code being leaked into an external
public URL.

Closes #47268

1 files changed, 6 insertions, 1 deletions

diff --git a/app/assets/javascripts/ide/utils.js b/app/assets/javascripts/ide/utils.js
index 92b15cf232d..d895eca7af0 100644
--- a/app/assets/javascripts/ide/utils.js
+++ b/app/assets/javascripts/ide/utils.js
@@ -1,6 +1,5 @@
 import { commitItemIconMap } from './constants';
 
-// eslint-disable-next-line import/prefer-default-export
 export const getCommitIconMap = file => {
   if (file.deleted) {
     return commitItemIconMap.deleted;
@@ -10,3 +9,9 @@ export const getCommitIconMap = file => {
 
   return commitItemIconMap.modified;
 };
+
+export const createPathWithExt = p => {
+  const ext = p.lastIndexOf('.') >= 0 ? p.substring(p.lastIndexOf('.') + 1) : '';
+
+  return `${p.substring(1, p.lastIndexOf('.') + 1 || p.length)}${ext || '.js'}`;
+};