fix(update): cancelling interactive update

.changeset/polite-points-behave.md

@@ -0,0 +1,6 @@
+---
+"@pnpm/plugin-commands-installation": patch
+"pnpm": patch
+---
+
+Don't crash when `pnpm update --interactive` is cancelled with Ctrl+c.

packages/plugin-commands-installation/src/update/index.ts

@@ -6,6 +6,7 @@ import {
 import { CompletionFunc } from '@pnpm/command'
 import { FILTERING, OPTIONS, UNIVERSAL_OPTIONS } from '@pnpm/common-cli-options-help'
 import { types as allTypes } from '@pnpm/config'
+import { globalInfo } from '@pnpm/logger'
 import matcher from '@pnpm/matcher'
 import { outdatedDepsOfProjects } from '@pnpm/outdated'
 import { prompt } from 'enquirer'
@@ -236,6 +237,13 @@ async function interactiveUpdate (
     k () {
       return this.up()
     },
+    cancel () {
+      // By default, canceling the prompt via Ctrl+c throws an empty string.
+      // The custom cancel function prevents that behavior.
+      // Otherwise, pnpm CLI would print an error and confuse users.
+      // See related issue: https://github.com/enquirer/enquirer/issues/225
+      globalInfo('Update canceled')
+    },
   } as any) as any // eslint-disable-line @typescript-eslint/no-explicit-any
   return update(updateDependencies, opts)
 }