fix: bug Modified to trigger runServer when .black configuration file is updated #569 by enumura1 · Pull Request #571 · microsoft/vscode-black-formatter

enumura1 · 2025-04-28T14:44:35Z

Here are the changes:

Added file watcher to monitor changes to .black configuration file in user's home directory
When .black file is modified, runServer is automatically executed to refresh settings

Fixes #569

microsoft-github-policy-service · 2025-04-28T14:44:51Z

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karthiknadig · 2025-04-28T14:49:41Z

src/common/utilities.ts

 }
+
+export function createConfigFileWatcher(onConfigChanged: () => Promise<void>): Disposable {
+    const watchers: FileSystemWatcher[] = [];


This should probably be just disposables of type Disposable[]

Thank you for your review.
I've made the changes.

karthiknadig · 2025-04-28T14:50:13Z

src/common/utilities.ts

+
+            const watcher = workspace.createFileSystemWatcher(pattern);
+
+            watcher.onDidChange(async () => {


onDidChange returns a Disposable so it should be added to disposables

Thank you for your review.
I've made the changes.

karthiknadig · 2025-04-28T14:51:33Z

src/common/utilities.ts

+    }
+
+    function watchConfigFile(filePath: string): void {
+        if (fs.existsSync(filePath)) {


Use async versions for FS apis.

Thank you for your review.
I've made the changes.

karthiknadig · 2025-04-28T14:54:57Z

src/common/utilities.ts

+    return {
+        dispose: () => {
+            for (const watcher of watchers) {
+                watcher.dispose();
+            }
+        }
+    };


This should just be:

return { dispose: () => {disposables.forEach((d) => d.dispose())}; }

Thank you for your review.
I've made the changes.

karthiknadig · 2025-04-28T14:55:54Z

src/extension.ts

+    configWatcherDisposable = createConfigFileWatcher(runServer);
+
    context.subscriptions.push(
+        configWatcherDisposable,


You can call create config watcher here directly. Once you make it async be sure to add await.

Thank you for your review.
I've modified the code to directly call createConfigFileWatcher in the subscriptions.push() method.

karthiknadig · 2025-04-28T14:56:30Z

src/extension.ts

 }

 export async function deactivate(): Promise<void> {
+    if (configWatcherDisposable) {


If you put it in context.subscriptions there is no need to explicitly dispose

Thank you for your review.
I've removed the explicit dispose()from the deactivate function.

Paulchen5 · 2025-06-04T09:43:33Z

hi @karthiknadig I would appreciate it if you can review the changes because I run into the same problems (and I don't like it 😅 )

enumura1 added 3 commits April 28, 2025 17:41

Add config file watcher to detect changes in Black settings

26f6a89

delete:comment

b4519bd

fix:add file watcher for .black config

5283e17

karthiknadig requested changes Apr 28, 2025

View reviewed changes

enumura1 added 2 commits April 30, 2025 00:42

fix: delete dispose in deactivate function

8019d75

fix: improve config file watcher implementation

5316478


		const watcher = workspace.createFileSystemWatcher(pattern);

		watcher.onDidChange(async () => {

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enumura1 commented Apr 28, 2025

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Paulchen5 commented Jun 4, 2025

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