Add status bar button to toggle check on save state

editors/code/package.json

@@ -292,6 +292,11 @@
                 "command": "rust-analyzer.viewMemoryLayout",
                 "title": "View Memory Layout",
                 "category": "rust-analyzer"
+            },
+            {
+                "command": "rust-analyzer.toggleCheckOnSave",
+                "title": "Toggle Check on Save",
+                "category": "rust-analyzer"
             }
         ],
         "keybindings": [

editors/code/src/commands.ts

@@ -1407,3 +1407,10 @@ locate()
         ctx.pushExtCleanup(document);
     };
 }
+
+export function toggleCheckOnSave(ctx: Ctx): Cmd {
+    return async () => {
+        await ctx.config.toggleCheckOnSave();
+        ctx.refreshServerStatus();
+    };
+}

editors/code/src/config.ts

@@ -216,6 +216,39 @@ export class Config {
             ),
         );
     }
+    get checkOnSave() {
+        return this.get<boolean>("checkOnSave") ?? false;
+    }
+    async toggleCheckOnSave() {
+        const config = this.cfg.inspect<boolean>("checkOnSave") ?? { key: "checkOnSave" };
+        let overrideInLanguage;
+        let target;
+        let value;
+        if (
+            config.workspaceFolderValue !== undefined ||
+            config.workspaceFolderLanguageValue !== undefined
+        ) {
+            target = vscode.ConfigurationTarget.WorkspaceFolder;
+            overrideInLanguage = config.workspaceFolderLanguageValue;
+            value = config.workspaceFolderValue || config.workspaceFolderLanguageValue;
+        } else if (
+            config.workspaceValue !== undefined ||
+            config.workspaceLanguageValue !== undefined
+        ) {
+            target = vscode.ConfigurationTarget.Workspace;
+            overrideInLanguage = config.workspaceLanguageValue;
+            value = config.workspaceValue || config.workspaceLanguageValue;
+        } else if (config.globalValue !== undefined || config.globalLanguageValue !== undefined) {
+            target = vscode.ConfigurationTarget.Global;
+            overrideInLanguage = config.globalLanguageValue;
+            value = config.globalValue || config.globalLanguageValue;
+        } else if (config.defaultValue !== undefined || config.defaultLanguageValue !== undefined) {
+            overrideInLanguage = config.defaultLanguageValue;
+            value = config.defaultValue || config.defaultLanguageValue;
+        }
+        await this.cfg.update("checkOnSave", !(value || false), target || null, overrideInLanguage);
+    }
+
     get traceExtension() {
         return this.get<boolean>("trace.extension");
     }

editors/code/src/ctx.ts

@@ -94,6 +94,7 @@ export class Ctx {
     private unlinkedFiles: vscode.Uri[];
     private _dependencies: RustDependenciesProvider | undefined;
     private _treeView: vscode.TreeView<Dependency | DependencyFile | DependencyId> | undefined;
+    private lastStatus: ServerStatusParams | { health: "stopped" } = { health: "stopped" };
 
     get client() {
         return this._client;
@@ -404,7 +405,15 @@ export class Ctx {
     }
 
     setServerStatus(status: ServerStatusParams | { health: "stopped" }) {
+        this.lastStatus = status;
+        this.updateStatusBarItem();
+    }
+    refreshServerStatus() {
+        this.updateStatusBarItem();
+    }
+    private updateStatusBarItem() {
         let icon = "";
+        const status = this.lastStatus;
         const statusBar = this.statusBar;
         statusBar.show();
         statusBar.tooltip = new vscode.MarkdownString("", true);
@@ -447,13 +456,18 @@ export class Ctx {
                     "statusBarItem.warningBackground",
                 );
                 statusBar.command = "rust-analyzer.startServer";
-                statusBar.text = `$(stop-circle) rust-analyzer`;
+                statusBar.text = "$(stop-circle) rust-analyzer";
                 return;
         }
         if (statusBar.tooltip.value) {
             statusBar.tooltip.appendMarkdown("\n\n---\n\n");
         }
-        statusBar.tooltip.appendMarkdown("\n\n[Open logs](command:rust-analyzer.openLogs)");
+        statusBar.tooltip.appendMarkdown("\n\n[Open Logs](command:rust-analyzer.openLogs)");
+        statusBar.tooltip.appendMarkdown(
+            `\n\n[${
+                this.config.checkOnSave ? "Disable" : "Enable"
+            } Check on Save](command:rust-analyzer.toggleCheckOnSave)`,
+        );
         statusBar.tooltip.appendMarkdown(
             "\n\n[Reload Workspace](command:rust-analyzer.reloadWorkspace)",
         );

editors/code/src/main.ts

@@ -180,6 +180,7 @@ function createCommands(): Record<string, CommandFactory> {
         ssr: { enabled: commands.ssr },
         serverVersion: { enabled: commands.serverVersion },
         viewMemoryLayout: { enabled: commands.viewMemoryLayout },
+        toggleCheckOnSave: { enabled: commands.toggleCheckOnSave },
         // Internal commands which are invoked by the server.
         applyActionGroup: { enabled: commands.applyActionGroup },
         applySnippetWorkspaceEdit: { enabled: commands.applySnippetWorkspaceEditCommand },

editors/code/src/util.ts

@@ -2,7 +2,7 @@ import * as vscode from "vscode";
 import { strict as nativeAssert } from "assert";
 import { exec, type ExecOptions, spawnSync } from "child_process";
 import { inspect } from "util";
-import { Env } from "./client";
+import type { Env } from "./client";
 
 export function assert(condition: boolean, explanation: string): asserts condition {
     try {