Corrected functionality

src/client/activation/activationService.ts

@@ -23,6 +23,7 @@ type ActivatorInfo = { jedi: boolean; activator: ILanguageServerActivator };
 @injectable()
 export class LanguageServerExtensionActivationService implements IExtensionActivationService, Disposable {
     private activatedWorkspaces = new Map<string, ILanguageServerActivator>();
+    private workspaceFoldersCount = 1;
     private currentActivator?: ActivatorInfo;
     private readonly workspaceService: IWorkspaceService;
     private readonly output: OutputChannel;
@@ -91,13 +92,18 @@ export class LanguageServerExtensionActivationService implements IExtensionActiv
     }
 
     protected onWorkspaceFoldersChanged() {
-        if (this.workspaceService.workspaceFolders!.length < this.activatedWorkspaces.size) {
-            //No. of workspace folders has decreased, dispose activator
+        if (this.workspaceService.workspaceFolders!.length < this.workspaceFoldersCount) {
+            //If the removed workspace folder was activated, dispose its activator
+            this.workspaceFoldersCount += -1;
             const workspaceKeys = this.workspaceService.workspaceFolders!.map(workspaceFolder => this.getWorkspacePathKey(workspaceFolder.uri));
             const mapKeys = Array.from(this.activatedWorkspaces.keys());
-            const folderRemoved = mapKeys.filter(x => workspaceKeys.indexOf(x) < 0)[0];
-            this.activatedWorkspaces.get(folderRemoved).dispose();
-            this.activatedWorkspaces.delete(folderRemoved);
+            const activatedfoldersRemoved = mapKeys.filter(x => workspaceKeys.indexOf(x) < 0);
+            if (activatedfoldersRemoved.length > 0) {
+                this.activatedWorkspaces.get(activatedfoldersRemoved[0]).dispose();
+                this.activatedWorkspaces.delete(activatedfoldersRemoved[0]);
+            }
+        } else {
+            this.workspaceFoldersCount += 1;
         }
     }
 

src/client/activation/jedi.ts

@@ -33,7 +33,7 @@ export class JediExtensionActivator implements ILanguageServerActivator {
         this.documentSelector = PYTHON;
     }
 
-    public async activate(_resource: Resource): Promise<void> {
+    public async activate(resource: Resource): Promise<void> {
         const context = this.context;
 
         const jediFactory = (this.jediFactory = new JediFactory(context.asAbsolutePath('.'), this.serviceManager));
@@ -89,7 +89,7 @@ export class JediExtensionActivator implements ILanguageServerActivator {
         const symbolProvider = new JediSymbolProvider(serviceContainer, jediFactory);
         context.subscriptions.push(languages.registerDocumentSymbolProvider(this.documentSelector, symbolProvider));
 
-        const pythonSettings = this.serviceManager.get<IConfigurationService>(IConfigurationService).getSettings();
+        const pythonSettings = this.serviceManager.get<IConfigurationService>(IConfigurationService).getSettings(resource);
         if (pythonSettings.devOptions.indexOf('DISABLE_SIGNATURE') === -1) {
             context.subscriptions.push(
                 languages.registerSignatureHelpProvider(

src/client/activation/languageServer/analysisOptions.ts

@@ -79,7 +79,7 @@ export class LanguageServerAnalysisOptions implements ILanguageServerAnalysisOpt
         properties['DatabasePath'] = path.join(this.context.extensionPath, this.languageServerFolder);
 
         let searchPaths = interpreterData ? interpreterData.searchPaths.split(path.delimiter) : [];
-        const settings = this.configuration.getSettings();
+        const settings = this.configuration.getSettings(this.resource);
         if (settings.autoComplete) {
             const extraPaths = settings.autoComplete.extraPaths;
             if (extraPaths && extraPaths.length > 0) {