Fix Performance/DeletePrefix cop (#24796)

.rubocop_todo.yml

@@ -303,21 +303,6 @@ Performance/CollectionLiteralInLoop:
     - 'config/deploy.rb'
     - 'lib/mastodon/media_cli.rb'
 
-# This cop supports unsafe autocorrection (--autocorrect-all).
-# Configuration parameters: SafeMultiline.
-Performance/DeletePrefix:
-  Exclude:
-    - 'app/controllers/authorize_interactions_controller.rb'
-    - 'app/controllers/concerns/signature_verification.rb'
-    - 'app/controllers/intents_controller.rb'
-    - 'app/lib/activitypub/case_transform.rb'
-    - 'app/lib/permalink_redirector.rb'
-    - 'app/lib/webfinger_resource.rb'
-    - 'app/services/activitypub/fetch_remote_actor_service.rb'
-    - 'app/services/backup_service.rb'
-    - 'app/services/resolve_account_service.rb'
-    - 'app/services/tag_search_service.rb'
-
 # This cop supports unsafe autocorrection (--autocorrect-all).
 Performance/MapCompact:
   Exclude:

app/controllers/authorize_interactions_controller.rb

@@ -59,7 +59,7 @@ class AuthorizeInteractionsController < ApplicationController
   end
 
   def uri_param
-    params[:uri] || params.fetch(:acct, '').gsub(/\Aacct:/, '')
+    params[:uri] || params.fetch(:acct, '').delete_prefix('acct:')
   end
 
   def set_body_classes

app/controllers/concerns/signature_verification.rb

@@ -244,7 +244,7 @@ module SignatureVerification
     end
 
     if key_id.start_with?('acct:')
-      stoplight_wrap_request { ResolveAccountService.new.call(key_id.gsub(/\Aacct:/, ''), suppress_errors: false) }
+      stoplight_wrap_request { ResolveAccountService.new.call(key_id.delete_prefix('acct:'), suppress_errors: false) }
     elsif !ActivityPub::TagManager.instance.local_uri?(key_id)
       account   = ActivityPub::TagManager.instance.uri_to_actor(key_id)
       account ||= stoplight_wrap_request { ActivityPub::FetchRemoteKeyService.new.call(key_id, id: false, suppress_errors: false) }

app/controllers/intents_controller.rb

@@ -9,7 +9,7 @@ class IntentsController < ApplicationController
     if uri.scheme == 'web+mastodon'
       case uri.host
       when 'follow'
-        return redirect_to authorize_interaction_path(uri: uri.query_values['uri'].gsub(/\Aacct:/, ''))
+        return redirect_to authorize_interaction_path(uri: uri.query_values['uri'].delete_prefix('acct:'))
       when 'share'
         return redirect_to share_path(text: uri.query_values['text'])
       end

app/lib/activitypub/case_transform.rb

@@ -13,7 +13,7 @@ module ActivityPub::CaseTransform
       when Symbol then camel_lower(value.to_s).to_sym
       when String
         camel_lower_cache[value] ||= if value.start_with?('_:')
-                                       "_:#{value.gsub(/\A_:/, '').underscore.camelize(:lower)}"
+                                       "_:#{value.delete_prefix('_:').underscore.camelize(:lower)}"
                                      else
                                        value.underscore.camelize(:lower)
                                      end

app/lib/permalink_redirector.rb

@@ -52,7 +52,7 @@ class PermalinkRedirector
   end
 
   def path_segments
-    @path_segments ||= @path.gsub(/\A\//, '').split('/')
+    @path_segments ||= @path.delete_prefix('/').split('/')
   end
 
   def find_status_url_by_id(id)

app/lib/webfinger_resource.rb

@@ -57,7 +57,7 @@ class WebfingerResource
   end
 
   def resource_without_acct_string
-    resource.gsub(/\Aacct:/, '')
+    resource.delete_prefix('acct:')
   end
 
   def local_username

app/services/activitypub/fetch_remote_actor_service.rb

@@ -67,7 +67,7 @@ class ActivityPub::FetchRemoteActorService < BaseService
   end
 
   def split_acct(acct)
-    acct.gsub(/\Aacct:/, '').split('@')
+    acct.delete_prefix('acct:').split('@')
   end
 
   def supported_context?

app/services/resolve_account_service.rb

@@ -100,7 +100,7 @@ class ResolveAccountService < BaseService
   end
 
   def split_acct(acct)
-    acct.gsub(/\Aacct:/, '').split('@')
+    acct.delete_prefix('acct:').split('@')
   end
 
   def fetch_account!

app/services/tag_search_service.rb

@@ -2,7 +2,7 @@
 
 class TagSearchService < BaseService
   def call(query, options = {})
-    @query   = query.strip.gsub(/\A#/, '')
+    @query   = query.strip.delete_prefix('#')
     @offset  = options.delete(:offset).to_i
     @limit   = options.delete(:limit).to_i
     @options = options