Merge pull request #194 from arduino/feature/codemirror-tab-behaviour

Fixed Tab key behaviour during code completion.

Author: ubidefeo

README.md

@@ -71,6 +71,16 @@ While the serial communication is mediated by [`micropython.js`](https://github.
 
 Some changes on the Electron code will require reopening the app but all UI changes will only require refreshing the window (ctrl-r/cmd-r).
 
+## Modifying CodeMirror's behaviour
+
+*CodeMirror.js* is built statically and loaded in the main page, same goes for *Choo.js*.
+While Choo won't need to possibly be changed ever, making changes to the CodeMirror configuration requires editing `ui/arduino/libs/build/build_codemirror.js and later building it again.
+In the repo root the file `build_static_libs.js` will generate static JavaScript files for both and copy them to their final paths.
+
+```shell
+node build_static_libs.js
+```
+
 ## Trademarks
 
 "Python" and the Python Logo are trademarks of the Python Software Foundation.

build_static_libs.js

@@ -0,0 +1,25 @@
+const esbuild = require('esbuild');
+const { execSync } = require('child_process');
+
+// Build choo with browserify
+// Building with esbuild would require more changes
+// to the source and it works well so far
+console.log('Building choo with browserify...');
+execSync('browserify static_libs/build_choo.js -o ui/arduino/libs/choo.js', { stdio: 'inherit' });
+
+// Build codemirror with esbuild
+console.log('Building codemirror with esbuild...');
+esbuild.build({
+  entryPoints: ['static_libs/build_codemirror.js'],
+  bundle: true,
+  outfile: 'ui/arduino/libs/codemirror.js',
+  format: 'iife',
+  minify: false,
+  platform: 'browser',
+  target: 'es2018'
+}).then(() => {
+  console.log('Both builds complete!');
+}).catch((error) => {
+  console.error('CodeMirror build failed:', error);
+  process.exit(1);
+});