uELS debugging guide (https://github.com/lifeart/ember-language-server)

readme.md

1. Apply VSCode settings from settings.json to your vscode project
2. Add VScode launch.json configuration
3. Restart VSCode
4. Open any Ember Project, wait for Ember Icon

6. Click on "Attach by Process ID"

8. Select ELS PID or check it on bottom line icon: { uELS [1234] }

7. Open /config/environment.js file and put debugger into any line

9. Click on "Ember" icon to reload current project

10. See debugger!

11. Reload LS clicking on { uELS [pid] } button

12. After reload you may need to click on Ember button to reinitialize project (to catch breakpoint)

launch.json

// A launch configuration that compiles the extension and then opens it inside a new window
{
	"version": "0.1.0",
	"configurations": [
		{
			"name": "Attach by Process ID",
			"processId": "${command:PickProcess}",
			"request": "attach",
			"resolveSourceMapLocations": null,
			"sourceMaps": true,
			"type": "pwa-node",
			"skipFiles": [
				"**/node_modules/vscode-languageserver/**",
				"**/node_modules/vscode-jsonrpc/**",
				"**/node_modules/@babel/**",
				"**/node_modules/memoizee/**",
				"**/node_modules/dag-map/**",
				"**/node_modules/@lifeart/ember-extract-inline-templates/**",
				"**/node_modules/ember-template-recast/**",
				"**/node_modules/picomatch/**",
				"**/node_modules/semver/**",
				"**/node_modules/flat/**",
				"**/node_modules/fuzzaldrin/**",
				"**/node_modules/json-parse-ast/**",
				"**/node_modules/lodash/**",
				"**/node_modules/yaml/**",
				"**/node_modules/vscode-uri/**",
				"**/node_modules/vscode-languageserver-textdocument/**",
				"**/node_modules/vscode-languageserver-protocol/**",
				"**/node_modules/simple-html-tokenizer/**",
				"**/node_modules/@glimmer/**",
				"<node_internals>/**"
			]
		},
	]
}

settings.json

{
 "els.server.debug.enabled": true,
 "els.server.debug.port": 6004
}