add configuration validation fo gopls (#136)

Author: shaykeren

src/services/languages/csharp/languageExtractor.ts

@@ -34,4 +34,8 @@ export class CSharpLanguageExtractor implements ILanguageExtractor
             new CSharpSpanExtractor(codeInspector),
         ];
     }
+
+    public async validateConfiguration(): Promise<void>{
+        
+    }
 }

src/services/languages/extractors.ts

@@ -75,4 +75,5 @@ export interface ILanguageExtractor {
     get methodExtractors(): IMethodExtractor[];
     getEndpointExtractors(codeInspector: CodeInspector): IEndpointExtractor[];
     getSpanExtractors(codeInspector: CodeInspector): ISpanExtractor[];
+    validateConfiguration():Promise<void>
 }

src/services/languages/go/languageExtractor.ts

@@ -1,5 +1,6 @@
 import * as vscode from 'vscode';
 import { CodeInspector } from '../../codeInspector';
+import { Logger } from '../../logger';
 import { IEndpointExtractor, ILanguageExtractor, IMethodExtractor, ISpanExtractor } from '../extractors';
 import { GoMethodExtractor } from './methodExtractor';
 import { GoSpanExtractor } from './spanExtractor';
@@ -33,4 +34,19 @@ export class GoLanguageExtractor implements ILanguageExtractor
             new GoSpanExtractor(codeInspector)
         ];
     }
+    public async validateConfiguration(): Promise<void>{
+        const section:any = vscode.workspace.getConfiguration().get("gopls");
+        if(section !== undefined && section["ui.semanticTokens"]){
+            return;
+        }
+
+        const extension = vscode.extensions.getExtension(this.requiredExtensionId);
+        if(extension){
+            Logger.info(`adding gopls missing configuration: ui.semanticTokens=true`);
+            await vscode.workspace.getConfiguration().update("gopls", {"ui.semanticTokens": true});
+            Logger.info(`Starting activating "${extension.id}" extension`);
+            await extension.activate();
+            Logger.info(`Finished activating "${extension.id}" extension`);
+        }
+    }
 }

src/services/languages/python/languageExtractor.ts

@@ -35,4 +35,6 @@ export class PythonLanguageExtractor implements ILanguageExtractor
             new PythonSpanExtractor(codeInspector)
         ];
     }
+    public async validateConfiguration(): Promise<void>{
+    }
 }

src/services/languages/symbolProvider.ts

@@ -262,6 +262,7 @@ export class SymbolProvider
 
 
         language.requiredExtensionLoaded = true;
+        await language.validateConfiguration();
         return true;
     }
 }