Enable frozen string in presenters and policies

Enable frozen string in:

* app/presenters
* app/policies

Partially addresses #47424.

32 files changed, 64 insertions, 0 deletions

diff --git a/app/policies/application_setting/term_policy.rb b/app/policies/application_setting/term_policy.rb
index f03bf748c76..17f00f33d35 100644
--- a/app/policies/application_setting/term_policy.rb
+++ b/app/policies/application_setting/term_policy.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class ApplicationSetting
   class TermPolicy < BasePolicy
     include Gitlab::Utils::StrongMemoize
diff --git a/app/policies/base_policy.rb b/app/policies/base_policy.rb
index 603218aa6df..0d0f1c28bad 100644
--- a/app/policies/base_policy.rb
+++ b/app/policies/base_policy.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require_dependency 'declarative_policy'
 
 class BasePolicy < DeclarativePolicy::Base
diff --git a/app/policies/ci/build_policy.rb b/app/policies/ci/build_policy.rb
index 75c7e529902..3858b29c82c 100644
--- a/app/policies/ci/build_policy.rb
+++ b/app/policies/ci/build_policy.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Ci
   class BuildPolicy < CommitStatusPolicy
     condition(:protected_ref) do
diff --git a/app/policies/ci/pipeline_policy.rb b/app/policies/ci/pipeline_policy.rb
index b81329d0625..f9623587957 100644
--- a/app/policies/ci/pipeline_policy.rb
+++ b/app/policies/ci/pipeline_policy.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Ci
   class PipelinePolicy < BasePolicy
     delegate { @subject.project }
diff --git a/app/policies/ci/pipeline_schedule_policy.rb b/app/policies/ci/pipeline_schedule_policy.rb
index ecba0488d3c..cf3f784f851 100644
--- a/app/policies/ci/pipeline_schedule_policy.rb
+++ b/app/policies/ci/pipeline_schedule_policy.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Ci
   class PipelineSchedulePolicy < PipelinePolicy
     alias_method :pipeline_schedule, :subject
diff --git a/app/policies/ci/runner_policy.rb b/app/policies/ci/runner_policy.rb
index 895abe87d86..c44f22b6ad3 100644
--- a/app/policies/ci/runner_policy.rb
+++ b/app/policies/ci/runner_policy.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Ci
   class RunnerPolicy < BasePolicy
     with_options scope: :subject, score: 0
diff --git a/app/policies/ci/trigger_policy.rb b/app/policies/ci/trigger_policy.rb
index 5592ac30812..209db44539c 100644
--- a/app/policies/ci/trigger_policy.rb
+++ b/app/policies/ci/trigger_policy.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Ci
   class TriggerPolicy < BasePolicy
     delegate { @subject.project }
diff --git a/app/policies/clusters/cluster_policy.rb b/app/policies/clusters/cluster_policy.rb
index b5b24491655..147943a3d6c 100644
--- a/app/policies/clusters/cluster_policy.rb
+++ b/app/policies/clusters/cluster_policy.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Clusters
   class ClusterPolicy < BasePolicy
     alias_method :cluster, :subject
diff --git a/app/policies/commit_status_policy.rb b/app/policies/commit_status_policy.rb
index 24b2a4cc7fd..eea2a24fb2d 100644
--- a/app/policies/commit_status_policy.rb
+++ b/app/policies/commit_status_policy.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CommitStatusPolicy < BasePolicy
   delegate { @subject.project }
 
diff --git a/app/policies/deploy_key_policy.rb b/app/policies/deploy_key_policy.rb
index 62a22a59be6..204c54a5b20 100644
--- a/app/policies/deploy_key_policy.rb
+++ b/app/policies/deploy_key_policy.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class DeployKeyPolicy < BasePolicy
   with_options scope: :subject, score: 0
   condition(:private_deploy_key) { @subject.private? }
diff --git a/app/policies/deploy_token_policy.rb b/app/policies/deploy_token_policy.rb
index d1b459cfc90..e648df3edfc 100644
--- a/app/policies/deploy_token_policy.rb
+++ b/app/policies/deploy_token_policy.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class DeployTokenPolicy < BasePolicy
   with_options scope: :subject, score: 0
   condition(:maintainer) { @subject.project.team.maintainer?(@user) }
diff --git a/app/policies/deployment_policy.rb b/app/policies/deployment_policy.rb
index 62b63b9f87b..56ac898b6ab 100644
--- a/app/policies/deployment_policy.rb
+++ b/app/policies/deployment_policy.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class DeploymentPolicy < BasePolicy
   delegate { @subject.project }
 end
diff --git a/app/policies/environment_policy.rb b/app/policies/environment_policy.rb
index 2d07311db72..d1243491f5a 100644
--- a/app/policies/environment_policy.rb
+++ b/app/policies/environment_policy.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class EnvironmentPolicy < BasePolicy
   delegate { @subject.project }
 
diff --git a/app/policies/external_issue_policy.rb b/app/policies/external_issue_policy.rb
index e031b38078c..1106536e075 100644
--- a/app/policies/external_issue_policy.rb
+++ b/app/policies/external_issue_policy.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class ExternalIssuePolicy < BasePolicy
   delegate { @subject.project }
 end
diff --git a/app/policies/global_policy.rb b/app/policies/global_policy.rb
index 1cf5515d9d7..6e3827736b2 100644
--- a/app/policies/global_policy.rb
+++ b/app/policies/global_policy.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class GlobalPolicy < BasePolicy
   desc "User is blocked"
   with_options scope: :user, score: 0
diff --git a/app/policies/group_label_policy.rb b/app/policies/group_label_policy.rb
index e3dd3296699..9f3acd44b23 100644
--- a/app/policies/group_label_policy.rb
+++ b/app/policies/group_label_policy.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class GroupLabelPolicy < BasePolicy
   delegate { @subject.group }
 end
diff --git a/app/policies/group_member_policy.rb b/app/policies/group_member_policy.rb
index 23dd0d7cd23..6f1afb87c85 100644
--- a/app/policies/group_member_policy.rb
+++ b/app/policies/group_member_policy.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class GroupMemberPolicy < BasePolicy
   delegate :group
 
diff --git a/app/policies/group_policy.rb b/app/policies/group_policy.rb
index dc339b71ec7..a8d7a05f509 100644
--- a/app/policies/group_policy.rb
+++ b/app/policies/group_policy.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class GroupPolicy < BasePolicy
   desc "Group is public"
   with_options scope: :subject, score: 0
diff --git a/app/policies/issuable_policy.rb b/app/policies/issuable_policy.rb
index b431d376e3d..198bb168d85 100644
--- a/app/policies/issuable_policy.rb
+++ b/app/policies/issuable_policy.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class IssuablePolicy < BasePolicy
   delegate { @subject.project }
 
diff --git a/app/policies/issue_policy.rb b/app/policies/issue_policy.rb
index 263c6e3039c..94b5f37c682 100644
--- a/app/policies/issue_policy.rb
+++ b/app/policies/issue_policy.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class IssuePolicy < IssuablePolicy
   # This class duplicates the same check of Issue#readable_by? for performance reasons
   # Make sure to sync this class checks with issue.rb to avoid security problems.
diff --git a/app/policies/merge_request_policy.rb b/app/policies/merge_request_policy.rb
index c3fe857f8a2..a2950951d03 100644
--- a/app/policies/merge_request_policy.rb
+++ b/app/policies/merge_request_policy.rb
@@ -1,2 +1,4 @@
+# frozen_string_literal: true
+
 class MergeRequestPolicy < IssuablePolicy
 end
diff --git a/app/policies/namespace_policy.rb b/app/policies/namespace_policy.rb
index eb01218eb0a..2babcb0a2d9 100644
--- a/app/policies/namespace_policy.rb
+++ b/app/policies/namespace_policy.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class NamespacePolicy < BasePolicy
   rule { anonymous }.prevent_all
 
diff --git a/app/policies/nil_policy.rb b/app/policies/nil_policy.rb
index 13f46ba60f0..fc969f8cd05 100644
--- a/app/policies/nil_policy.rb
+++ b/app/policies/nil_policy.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class NilPolicy < BasePolicy
   rule { default }.prevent_all
 end
diff --git a/app/policies/note_policy.rb b/app/policies/note_policy.rb
index 077a6761ee6..bbc2b48b856 100644
--- a/app/policies/note_policy.rb
+++ b/app/policies/note_policy.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class NotePolicy < BasePolicy
   delegate { @subject.project }
   delegate { @subject.noteable if DeclarativePolicy.has_policy?(@subject.noteable) }
diff --git a/app/policies/personal_snippet_policy.rb b/app/policies/personal_snippet_policy.rb
index c1a84727cfa..777f933cdcd 100644
--- a/app/policies/personal_snippet_policy.rb
+++ b/app/policies/personal_snippet_policy.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class PersonalSnippetPolicy < BasePolicy
   condition(:public_snippet, scope: :subject) { @subject.public? }
   condition(:is_author) { @user && @subject.author == @user }
diff --git a/app/policies/project_label_policy.rb b/app/policies/project_label_policy.rb
index 2d0f021118b..5ce896ecaf2 100644
--- a/app/policies/project_label_policy.rb
+++ b/app/policies/project_label_policy.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class ProjectLabelPolicy < BasePolicy
   delegate { @subject.project }
 end
diff --git a/app/policies/project_member_policy.rb b/app/policies/project_member_policy.rb
index 9aedb620be9..f2f18406bd3 100644
--- a/app/policies/project_member_policy.rb
+++ b/app/policies/project_member_policy.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class ProjectMemberPolicy < BasePolicy
   delegate { @subject.project }
 
diff --git a/app/policies/project_policy.rb b/app/policies/project_policy.rb
index bc49092633f..f52a3bad77d 100644
--- a/app/policies/project_policy.rb
+++ b/app/policies/project_policy.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class ProjectPolicy < BasePolicy
   extend ClassMethods
 
diff --git a/app/policies/project_policy/class_methods.rb b/app/policies/project_policy/class_methods.rb
index 60e5aba00ba..42d993406a9 100644
--- a/app/policies/project_policy/class_methods.rb
+++ b/app/policies/project_policy/class_methods.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class ProjectPolicy
   module ClassMethods
     def create_read_update_admin_destroy(name)
diff --git a/app/policies/project_snippet_policy.rb b/app/policies/project_snippet_policy.rb
index dd270643bbf..288bf070cfc 100644
--- a/app/policies/project_snippet_policy.rb
+++ b/app/policies/project_snippet_policy.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class ProjectSnippetPolicy < BasePolicy
   delegate :project
 
diff --git a/app/policies/protected_branch_policy.rb b/app/policies/protected_branch_policy.rb
index 1a7faa4db40..0e83d2e5834 100644
--- a/app/policies/protected_branch_policy.rb
+++ b/app/policies/protected_branch_policy.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class ProtectedBranchPolicy < BasePolicy
   delegate { @subject.project }
 
diff --git a/app/policies/user_policy.rb b/app/policies/user_policy.rb
index 8499e45e846..b5717029354 100644
--- a/app/policies/user_policy.rb
+++ b/app/policies/user_policy.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class UserPolicy < BasePolicy
   desc "The current user is the user in question"
   condition(:user_is_self, score: 0) { @subject == @user }