Enable frozen string in apps/validators/*.rb

Partially addresses #47424.

19 files changed, 40 insertions, 2 deletions

diff --git a/app/validators/abstract_path_validator.rb b/app/validators/abstract_path_validator.rb
index e43b66cbe3a..45ac695c5ec 100644
--- a/app/validators/abstract_path_validator.rb
+++ b/app/validators/abstract_path_validator.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AbstractPathValidator < ActiveModel::EachValidator
   extend Gitlab::EncodingHelper
 
diff --git a/app/validators/certificate_fingerprint_validator.rb b/app/validators/certificate_fingerprint_validator.rb
index 17df756183a..79d78653ec7 100644
--- a/app/validators/certificate_fingerprint_validator.rb
+++ b/app/validators/certificate_fingerprint_validator.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CertificateFingerprintValidator < ActiveModel::EachValidator
   FINGERPRINT_PATTERN = /\A([a-zA-Z0-9]{2}[\s\-:]?){16,}\z/.freeze
 
diff --git a/app/validators/certificate_key_validator.rb b/app/validators/certificate_key_validator.rb
index 8c7bb750339..5b2bbffc066 100644
--- a/app/validators/certificate_key_validator.rb
+++ b/app/validators/certificate_key_validator.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # UrlValidator
 #
 # Custom validator for private keys.
diff --git a/app/validators/certificate_validator.rb b/app/validators/certificate_validator.rb
index b0c9a1b92a4..de8bb179dfb 100644
--- a/app/validators/certificate_validator.rb
+++ b/app/validators/certificate_validator.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # UrlValidator
 #
 # Custom validator for private keys.
diff --git a/app/validators/cluster_name_validator.rb b/app/validators/cluster_name_validator.rb
index e7d32550176..85fd63f08e5 100644
--- a/app/validators/cluster_name_validator.rb
+++ b/app/validators/cluster_name_validator.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # ClusterNameValidator
 #
 # Custom validator for ClusterName.
diff --git a/app/validators/color_validator.rb b/app/validators/color_validator.rb
index 571d0007aa2..1932d042e83 100644
--- a/app/validators/color_validator.rb
+++ b/app/validators/color_validator.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # ColorValidator
 #
 # Custom validator for web color codes. It requires the leading hash symbol and
diff --git a/app/validators/cron_timezone_validator.rb b/app/validators/cron_timezone_validator.rb
index 542c7d006ad..c5f51d65060 100644
--- a/app/validators/cron_timezone_validator.rb
+++ b/app/validators/cron_timezone_validator.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # CronTimezoneValidator
 #
 # Custom validator for CronTimezone.
diff --git a/app/validators/cron_validator.rb b/app/validators/cron_validator.rb
index 981fade47a6..bd48a7a6efb 100644
--- a/app/validators/cron_validator.rb
+++ b/app/validators/cron_validator.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # CronValidator
 #
 # Custom validator for Cron.
diff --git a/app/validators/duration_validator.rb b/app/validators/duration_validator.rb
index 10ff44031c6..811828169ca 100644
--- a/app/validators/duration_validator.rb
+++ b/app/validators/duration_validator.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # DurationValidator
 #
 # Validate the format conforms with ChronicDuration
diff --git a/app/validators/email_validator.rb b/app/validators/email_validator.rb
index aab07a7ece4..9459edb7515 100644
--- a/app/validators/email_validator.rb
+++ b/app/validators/email_validator.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class EmailValidator < ActiveModel::EachValidator
   def validate_each(record, attribute, value)
     record.errors.add(attribute, :invalid) unless value =~ Devise.email_regexp
diff --git a/app/validators/key_restriction_validator.rb b/app/validators/key_restriction_validator.rb
index 204be827941..891d13b1596 100644
--- a/app/validators/key_restriction_validator.rb
+++ b/app/validators/key_restriction_validator.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class KeyRestrictionValidator < ActiveModel::EachValidator
   FORBIDDEN = -1
 
diff --git a/app/validators/line_code_validator.rb b/app/validators/line_code_validator.rb
index ed29e5aeb67..a351180790e 100644
--- a/app/validators/line_code_validator.rb
+++ b/app/validators/line_code_validator.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # LineCodeValidator
 #
 # Custom validator for GitLab line codes.
diff --git a/app/validators/namespace_name_validator.rb b/app/validators/namespace_name_validator.rb
index 2e51af2982d..fb1c241037c 100644
--- a/app/validators/namespace_name_validator.rb
+++ b/app/validators/namespace_name_validator.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # NamespaceNameValidator
 #
 # Custom validator for GitLab namespace name strings.
diff --git a/app/validators/namespace_path_validator.rb b/app/validators/namespace_path_validator.rb
index 7b0ae4db5d4..c078b272b2f 100644
--- a/app/validators/namespace_path_validator.rb
+++ b/app/validators/namespace_path_validator.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class NamespacePathValidator < AbstractPathValidator
   extend Gitlab::EncodingHelper
 
diff --git a/app/validators/project_path_validator.rb b/app/validators/project_path_validator.rb
index 424fd77a6a3..aea0a68e7cf 100644
--- a/app/validators/project_path_validator.rb
+++ b/app/validators/project_path_validator.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class ProjectPathValidator < AbstractPathValidator
   extend Gitlab::EncodingHelper
 
diff --git a/app/validators/public_url_validator.rb b/app/validators/public_url_validator.rb
index 1e8118fccbb..3ff880deedd 100644
--- a/app/validators/public_url_validator.rb
+++ b/app/validators/public_url_validator.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # PublicUrlValidator
 #
 # Custom validator for URLs. This validator works like UrlValidator but
diff --git a/app/validators/top_level_group_validator.rb b/app/validators/top_level_group_validator.rb
index 7e2e735e0cf..b50c9dca154 100644
--- a/app/validators/top_level_group_validator.rb
+++ b/app/validators/top_level_group_validator.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class TopLevelGroupValidator < ActiveModel::EachValidator
   def validate_each(record, attribute, value)
     if value&.subgroup?
diff --git a/app/validators/url_validator.rb b/app/validators/url_validator.rb
index 6854fec582e..faaf1283078 100644
--- a/app/validators/url_validator.rb
+++ b/app/validators/url_validator.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # UrlValidator
 #
 # Custom validator for URLs.
diff --git a/app/validators/variable_duplicates_validator.rb b/app/validators/variable_duplicates_validator.rb
index 72660be6c43..90193e85f2a 100644
--- a/app/validators/variable_duplicates_validator.rb
+++ b/app/validators/variable_duplicates_validator.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # VariableDuplicatesValidator
 #
 # This validator is designed for especially the following condition
@@ -22,8 +24,8 @@ class VariableDuplicatesValidator < ActiveModel::EachValidator
   def validate_duplicates(record, attribute, values)
     duplicates = values.reject(&:marked_for_destruction?).group_by(&:key).select { |_, v| v.many? }.map(&:first)
     if duplicates.any?
-      error_message = "have duplicate values (#{duplicates.join(", ")})"
-      error_message += " for #{values.first.send(options[:scope])} scope" if options[:scope] # rubocop:disable GitlabSecurity/PublicSend
+      error_message = +"have duplicate values (#{duplicates.join(", ")})"
+      error_message << " for #{values.first.send(options[:scope])} scope" if options[:scope] # rubocop:disable GitlabSecurity/PublicSend
       record.errors.add(attribute, error_message)
     end
   end