Move the upgraderoom command into its own subdirectory of slash-commands (#31941)

* Move the code for running the upgrade command into its subdir

* Replace use of deprecated currentState property in runUpgradeRoomCommand

* Move upgraderoom command options into their own file

* Move upgraderoom tests into their own file and add a couple

src/SlashCommands.tsx

@@ -44,9 +44,7 @@ import { UIComponent, UIFeature } from "./settings/UIFeature";
 import { CHAT_EFFECTS } from "./effects";
 import LegacyCallHandler from "./LegacyCallHandler";
 import { guessAndSetDMRoom } from "./Rooms";
-import { upgradeRoom } from "./utils/RoomUpgrade";
 import DevtoolsDialog from "./components/views/dialogs/DevtoolsDialog";
-import RoomUpgradeWarningDialog from "./components/views/dialogs/RoomUpgradeWarningDialog";
 import InfoDialog from "./components/views/dialogs/InfoDialog";
 import SlashCommandHelpDialog from "./components/views/dialogs/SlashCommandHelpDialog";
 import { shouldShowComponent } from "./customisations/helpers/UIComponents";
@@ -61,7 +59,7 @@ import { CommandCategories } from "./slash-commands/interface";
 import { Command } from "./slash-commands/command";
 import { goto, join } from "./slash-commands/join";
 import { manuallyVerifyDevice } from "./components/views/dialogs/ManualDeviceKeyVerificationDialog";
-import { parseUpgradeRoomArgs } from "./slash-commands/upgraderoom/parseUpgradeRoomArgs";
+import upgraderoom from "./slash-commands/upgraderoom/upgraderoom";
 
 export { CommandCategories, Command };
 
@@ -145,52 +143,7 @@ export const Commands = [
         },
         category: CommandCategories.messages,
     }),
-    new Command({
-        command: "upgraderoom",
-        args: "<new_version> [<additional-creator-user-id> ...]",
-        description: _td("slash_command|upgraderoom"),
-        isEnabled: (cli) => !isCurrentLocalRoom(cli),
-        runFn: function (cli, roomId, threadId, args) {
-            if (!args) {
-                return reject(this.getUsage());
-            }
-            const parsedArgs = parseUpgradeRoomArgs(args);
-            if (parsedArgs) {
-                const room = cli.getRoom(roomId);
-                if (!room?.currentState.mayClientSendStateEvent("m.room.tombstone", cli)) {
-                    return reject(new UserFriendlyError("slash_command|upgraderoom_permission_error"));
-                }
-
-                const { finished } = Modal.createDialog(
-                    RoomUpgradeWarningDialog,
-                    { roomId: roomId, targetVersion: parsedArgs.targetVersion },
-                    /*className=*/ undefined,
-                    /*isPriority=*/ false,
-                    /*isStatic=*/ true,
-                );
-
-                return success(
-                    finished.then(async ([resp]): Promise<void> => {
-                        if (!resp?.continue) return;
-                        await upgradeRoom(
-                            room,
-                            parsedArgs.targetVersion,
-                            resp.invite,
-                            true,
-                            true,
-                            false,
-                            undefined,
-                            false,
-                            parsedArgs.additionalCreators,
-                        );
-                    }),
-                );
-            }
-            return reject(this.getUsage());
-        },
-        category: CommandCategories.admin,
-        renderingTypes: [TimelineRenderingType.Room],
-    }),
+    upgraderoom,
     new Command({
         command: "jumptodate",
         args: "<YYYY-MM-DD>",

src/slash-commands/upgraderoom/runUpgradeRoomCommand.ts

@@ -0,0 +1,64 @@
+/*
+ * Copyright 2026 Element Creations Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only OR LicenseRef-Element-Commercial
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+import { EventTimeline, type MatrixClient } from "matrix-js-sdk/src/matrix";
+
+import Modal from "../../Modal";
+import RoomUpgradeWarningDialog from "../../components/views/dialogs/RoomUpgradeWarningDialog";
+import { type Command } from "../command";
+import { UserFriendlyError } from "../../languageHandler";
+import { parseUpgradeRoomArgs } from "./parseUpgradeRoomArgs";
+import { reject, success } from "../utils";
+import { type RunResult } from "../interface";
+import { upgradeRoom } from "../../utils/RoomUpgrade";
+
+export function runUpgradeRoomCommand(
+    command: Command,
+    cli: MatrixClient,
+    roomId: string,
+    _threadId: string | null,
+    args?: string,
+): RunResult {
+    if (!args) {
+        return reject(command.getUsage());
+    }
+    const parsedArgs = parseUpgradeRoomArgs(args);
+    if (parsedArgs) {
+        const room = cli.getRoom(roomId);
+        if (
+            !room?.getLiveTimeline().getState(EventTimeline.FORWARDS)?.mayClientSendStateEvent("m.room.tombstone", cli)
+        ) {
+            return reject(new UserFriendlyError("slash_command|upgraderoom_permission_error"));
+        }
+
+        const { finished } = Modal.createDialog(
+            RoomUpgradeWarningDialog,
+            { roomId: roomId, targetVersion: parsedArgs.targetVersion },
+            /*className=*/ undefined,
+            /*isPriority=*/ false,
+            /*isStatic=*/ true,
+        );
+
+        return success(
+            finished.then(async ([resp]): Promise<void> => {
+                if (!resp?.continue) return;
+                await upgradeRoom(
+                    room,
+                    parsedArgs.targetVersion,
+                    resp.invite,
+                    true,
+                    true,
+                    false,
+                    undefined,
+                    false,
+                    parsedArgs.additionalCreators,
+                );
+            }),
+        );
+    }
+    return reject(command.getUsage());
+}

src/slash-commands/upgraderoom/upgraderoom.ts

@@ -0,0 +1,29 @@
+/*
+ * Copyright 2026 Element Creations Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only OR LicenseRef-Element-Commercial
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+import { type MatrixClient } from "matrix-js-sdk/src/matrix";
+
+import { _td } from "../../languageHandler";
+import { isCurrentLocalRoom } from "../utils";
+import { runUpgradeRoomCommand } from "./runUpgradeRoomCommand";
+import { Command } from "../command";
+import { CommandCategories, type RunResult } from "../interface";
+import { TimelineRenderingType } from "../../contexts/RoomContext";
+
+const upgraderoom = new Command({
+    command: "upgraderoom",
+    args: "<new_version> [<additional-creator-user-id> ...]",
+    description: _td("slash_command|upgraderoom"),
+    isEnabled: (cli: MatrixClient) => !isCurrentLocalRoom(cli),
+    runFn: function (cli: MatrixClient, roomId: string, threadId: string | null, args?: string): RunResult {
+        return runUpgradeRoomCommand(this, cli, roomId, threadId, args);
+    },
+    category: CommandCategories.admin,
+    renderingTypes: [TimelineRenderingType.Room],
+});
+
+export default upgraderoom;