Add tootctl cache clear (#10689)

lib/mastodon/cache_cli.rb

@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+require_relative '../../config/boot'
+require_relative '../../config/environment'
+require_relative 'cli_helper'
+
+module Mastodon
+  class CacheCLI < Thor
+    def self.exit_on_failure?
+      true
+    end
+
+    desc 'clear', 'Clear out the cache storage'
+    def clear
+      Rails.cache.clear
+      say('OK', :green)
+    end
+  end
+end