feature: ember-template-lint documentation link

* rule link

* parse uri

* feature: code description for template-lint-diagnostics

* update tests

* fix linting

src/server.ts

@@ -336,7 +336,13 @@ export default class Server {
     }
     // this.setStatusText('Initialized');
 
+    const info = JSON.parse(fs.readFileSync(path.join(__dirname, './../package.json'), 'utf8'));
+
     return {
+      serverInfo: {
+        name: info.name,
+        version: info.version,
+      },
       capabilities: {
         // Tell the client that the server works in FULL text document sync mode
         textDocumentSync: TextDocumentSyncKind.Full,

src/utils/diagnostic.ts

@@ -32,13 +32,21 @@ export function toHbsSource(templateNode: ITemplateNode): string {
 }
 
 export function toDiagnostic(source: string, error: TemplateLinterError): Diagnostic {
-  return {
+  const result = {
     severity: DiagnosticSeverity.Error,
     range: toRange(source, error),
     message: toMessage(error),
-    code: error.rule,
+    code: error.rule || 'syntax',
     source: error.rule ? 'ember-template-lint' : 'glimmer-engine',
   };
+
+  if (result.source === 'ember-template-lint') {
+    (result as any).codeDescription = {
+      href: `https://github.com/ember-template-lint/ember-template-lint/blob/master/docs/rule/${result.code}.md`,
+    };
+  }
+
+  return result as Diagnostic;
 }
 
 function toLineRange(source: string, idx: number): [number, number] {

test/__snapshots__/integration-test.ts.snap

@@ -2538,6 +2538,9 @@ Object {
       },
     },
   },
+  "serverInfo": Object {
+    "name": "@lifeart/ember-language-server",
+  },
 }
 `;
 

test/integration-test.ts

@@ -54,6 +54,8 @@ describe('integration', function () {
       jest.setTimeout(15000);
       const response = await initServer(connection);
 
+      expect(response.serverInfo.version.split('.').length).toEqual(3);
+      delete response.serverInfo.version;
       expect(response).toMatchSnapshot();
     });
   });