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Don't watch non-writable fs for md preview updates

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Fixes #277389
This commit is contained in:
Matt Bierner
2025-11-14 10:32:54 -08:00
parent 9f3e4c2501
commit b38fb3f7f1
1 changed files with 10 additions and 8 deletions
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18
extensions/markdown-language-features/src/preview/preview.ts
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@@ -110,15 +110,17 @@ class MarkdownPreview extends Disposable implements WebviewResourceProvider {
}
}));
const watcher = this._register(vscode.workspace.createFileSystemWatcher(new vscode.RelativePattern(resource, '*')));
this._register(watcher.onDidChange(uri => {
if (this.isPreviewOf(uri)) {
// Only use the file system event when VS Code does not already know about the file
if (!vscode.workspace.textDocuments.some(doc => doc.uri.toString() === uri.toString())) {
this.refresh();
if (vscode.workspace.fs.isWritableFileSystem(resource.scheme)) {
const watcher = this._register(vscode.workspace.createFileSystemWatcher(new vscode.RelativePattern(resource, '*')));
this._register(watcher.onDidChange(uri => {
if (this.isPreviewOf(uri)) {
// Only use the file system event when VS Code does not already know about the file
if (!vscode.workspace.textDocuments.some(doc => doc.uri.toString() === uri.toString())) {
this.refresh();
}
}
}
}));
}));
}
this._register(this._webviewPanel.webview.onDidReceiveMessage((e: FromWebviewMessage.Type) => {
if (e.source !== this._resource.toString()) {