Tweak check for custom directory

Author: shati-patel

extensions/ql-vscode/src/queryserver-client.ts

@@ -94,14 +94,18 @@ export class QueryServerClient extends DisposableObject {
     let isCustomLogDirectory = false;
     if (this.config.customLogDirectory) {
       try {
-        if (!fs.pathExists(this.config.customLogDirectory)) {
-          await fs.mkdir(this.config.customLogDirectory);
-        }
+        await fs.mkdir(this.config.customLogDirectory);
         this.logger.log(`Saving query server logs to user-specified directory: ${this.config.customLogDirectory}.`);
         storagePath = this.config.customLogDirectory;
         isCustomLogDirectory = true;
       } catch (e) {
-        helpers.showAndLogErrorMessage(`${this.config.customLogDirectory} is not a valid directory. Logs will be stored in a temporary workspace directory instead.`);
+        if (e.code === 'EEXIST') {
+          this.logger.log(`Saving query server logs to user-specified directory: ${this.config.customLogDirectory}.`);
+          storagePath = this.config.customLogDirectory;
+          isCustomLogDirectory = true;
+        } else {
+          helpers.showAndLogErrorMessage(`${this.config.customLogDirectory} is not a valid directory. Logs will be stored in a temporary workspace directory instead.`);
+        }
       }
     }