Prevent continuous "package resolve" cycles (#1654)

* Prevent continuous "package resolve" cycles

We can ignore the create and delete events as these were likely caused
by the LSP or SwiftPM anywatch. Watch for change still in case the user
switches branches

Issue: #1571

* Add CHANGELOG entry

Author: award999

CHANGELOG.md

@@ -6,6 +6,7 @@
 
 - Cleanup Swift diagnostics when the source file is moved or deleted ([#1653](https://github.com/swiftlang/vscode-swift/pull/1653))
 - Make sure newline starts with /// when splitting doc comment ([#1651](https://github.com/swiftlang/vscode-swift/pull/1651))
+- Prevent continuous "package resolve" cycles ([#1654](https://github.com/swiftlang/vscode-swift/pull/1654))
 - Fix error when running `Reset Package Dependencies` command from the Project view ([#1661](https://github.com/swiftlang/vscode-swift/pull/1661))
 
 ## 2.6.0 - 2025-06-26

src/PackageWatcher.ts

@@ -30,6 +30,7 @@ import { showReloadExtensionNotification } from "./ui/ReloadExtension";
  */
 export class PackageWatcher {
     private packageFileWatcher?: vscode.FileSystemWatcher;
+    private resolvedChangedDisposable?: vscode.Disposable;
     private resolvedFileWatcher?: vscode.FileSystemWatcher;
     private workspaceStateFileWatcher?: vscode.FileSystemWatcher;
     private snippetWatcher?: vscode.FileSystemWatcher;
@@ -59,6 +60,7 @@ export class PackageWatcher {
      */
     dispose() {
         this.packageFileWatcher?.dispose();
+        this.resolvedChangedDisposable?.dispose();
         this.resolvedFileWatcher?.dispose();
         this.workspaceStateFileWatcher?.dispose();
         this.snippetWatcher?.dispose();
@@ -77,11 +79,18 @@ export class PackageWatcher {
 
     private createResolvedFileWatcher(): vscode.FileSystemWatcher {
         const watcher = vscode.workspace.createFileSystemWatcher(
-            new vscode.RelativePattern(this.folderContext.folder, "Package.resolved")
+            new vscode.RelativePattern(this.folderContext.folder, "Package.resolved"),
+            // https://github.com/swiftlang/vscode-swift/issues/1571
+            // We can ignore create because that would be seemingly from a Package.resolved
+            // and will ignore delete as we don't know the reason behind. By still listening
+            // for change
+            true,
+            false,
+            true
+        );
+        this.resolvedChangedDisposable = watcher.onDidChange(
+            async () => await this.handlePackageResolvedChange()
         );
-        watcher.onDidCreate(async () => await this.handlePackageResolvedChange());
-        watcher.onDidChange(async () => await this.handlePackageResolvedChange());
-        watcher.onDidDelete(async () => await this.handlePackageResolvedChange());
         return watcher;
     }