Resolve Style/RegexpLiteralMixedPreserve part1

- resolve todo items.

.rubocop_manual_todo.yml

@@ -2444,17 +2444,6 @@ Gitlab/FeatureAvailableUsage:
 # WIP See https://gitlab.com/gitlab-org/gitlab/-/issues/327490
 Style/RegexpLiteralMixedPreserve:
   Exclude:
-    - 'app/controllers/projects/repositories_controller.rb'
-    - 'app/helpers/ci/variables_helper.rb'
-    - 'app/models/alert_management/alert.rb'
-    - 'app/models/application_setting.rb'
-    - 'app/models/blob_viewer/go_mod.rb'
-    - 'app/models/concerns/ci/maskable.rb'
-    - 'app/models/operations/feature_flag.rb'
-    - 'app/models/packages/go/module.rb'
-    - 'app/services/packages/conan/search_service.rb'
-    - 'app/services/projects/update_remote_mirror_service.rb'
-    - 'config/initializers/rspec_profiling.rb'
     - 'ee/app/models/status_page/project_setting.rb'
     - 'ee/app/presenters/vulnerability_presenter.rb'
     - 'ee/lib/api/geo_nodes.rb'

app/controllers/projects/repositories_controller.rb

@@ -117,7 +117,7 @@ class Projects::RepositoriesController < Projects::ApplicationController
   # from Redis.
   def extract_ref_and_filename(id)
     path = id.strip
-    data = path.match(/(.*)\/(.*)/)
+    data = path.match(%r{(.*)/(.*)})
 
     if data
       [data[1], data[2]]

app/helpers/ci/variables_helper.rb

@@ -48,7 +48,7 @@ module Ci
     end
 
     def ci_variable_maskable_regex
-      Ci::Maskable::REGEX.inspect.sub('\\A', '^').sub('\\z', '$').sub(/^\//, '').sub(/\/[a-z]*$/, '').gsub('\/', '/')
+      Ci::Maskable::REGEX.inspect.sub('\\A', '^').sub('\\z', '$').sub(%r{^/}, '').sub(%r{/[a-z]*$}, '').gsub('\/', '/')
     end
   end
 end

app/models/alert_management/alert.rb

@@ -210,7 +210,7 @@ module AlertManagement
     end
 
     def self.link_reference_pattern
-      @link_reference_pattern ||= super("alert_management", /(?<alert>\d+)\/details(\#)?/)
+      @link_reference_pattern ||= super("alert_management", %r{(?<alert>\d+)/details(\#)?})
     end
 
     def self.reference_valid?(reference)

app/models/application_setting.rb

@@ -293,7 +293,7 @@ class ApplicationSetting < ApplicationRecord
   validates :user_default_internal_regex, js_regex: true, allow_nil: true
 
   validates :personal_access_token_prefix,
-            format: { with: /\A[a-zA-Z0-9_+=\/@:.-]+\z/,
+            format: { with: %r{\A[a-zA-Z0-9_+=/@:.-]+\z},
                       message: _("can contain only letters of the Base64 alphabet (RFC4648) with the addition of '@', ':' and '.'") },
             length: { maximum: 20, message: _('is too long (maximum is %{count} characters)') },
             allow_blank: true
@@ -590,7 +590,7 @@ class ApplicationSetting < ApplicationRecord
   end
 
   def sourcegraph_url_is_com?
-    !!(sourcegraph_url =~ /\Ahttps:\/\/(www\.)?sourcegraph\.com/)
+    !!(sourcegraph_url =~ %r{\Ahttps://(www\.)?sourcegraph\.com})
   end
 
   def instance_review_permitted?

app/models/blob_viewer/go_mod.rb

@@ -5,13 +5,13 @@ module BlobViewer
     include ServerSide
     include Gitlab::Utils::StrongMemoize
 
-    MODULE_REGEX = /
+    MODULE_REGEX = %r{
       \A (?# beginning of file)
       module\s+ (?# module directive)
       (?<name>.*?) (?# module name)
-      \s*(?:\/\/.*)? (?# comment)
+      \s*(?://.*)? (?# comment)
       (?:\n|\z) (?# newline or end of file)
-    /x.freeze
+    }x.freeze
 
     self.file_types = %i(go_mod go_sum)
 

app/models/concerns/ci/maskable.rb

@@ -11,7 +11,7 @@ module Ci
     # * Minimal length of 8 characters
     # * Characters must be from the Base64 alphabet (RFC4648) with the addition of '@', ':', '.', and '~'
     # * Absolutely no fun is allowed
-    REGEX = /\A[a-zA-Z0-9_+=\/@:.~-]{8,}\z/.freeze
+    REGEX = %r{\A[a-zA-Z0-9_+=/@:.~-]{8,}\z}.freeze
 
     included do
       validates :masked, inclusion: { in: [true, false] }

app/models/operations/feature_flag.rb

@@ -80,7 +80,7 @@ module Operations
       end
 
       def link_reference_pattern
-        @link_reference_pattern ||= super("feature_flags", /(?<feature_flag>\d+)\/edit/)
+        @link_reference_pattern ||= super("feature_flags", %r{(?<feature_flag>\d+)/edit})
       end
 
       def reference_postfix

app/models/packages/go/module.rb

@@ -33,7 +33,7 @@ module Packages
       end
 
       def path_valid?(major)
-        m = /\/v(\d+)$/i.match(@name)
+        m = %r{/v(\d+)$}i.match(@name)
 
         case major
         when 0, 1

app/services/packages/conan/search_service.rb

@@ -41,7 +41,7 @@ module Packages
       end
 
       def search_for_single_package(query)
-        name, version, username, _ = query.split(/[@\/]/)
+        name, version, username, _ = query.split(%r{[@/]})
         full_path = Packages::Conan::Metadatum.full_path_from(package_username: username)
         project = Project.find_by_full_path(full_path)
         return unless Ability.allowed?(current_user, :read_package, project)

app/services/projects/update_remote_mirror_service.rb

@@ -65,7 +65,7 @@ module Projects
 
       # TODO: Support LFS sync over SSH
       # https://gitlab.com/gitlab-org/gitlab/-/issues/249587
-      return unless remote_mirror.url =~ /\Ahttps?:\/\//i
+      return unless remote_mirror.url =~ %r{\Ahttps?://}i
       return unless remote_mirror.password_auth?
 
       Lfs::PushService.new(

config/initializers/rspec_profiling.rb

@@ -61,7 +61,7 @@ RspecProfiling.configure do |config|
     RspecProfiling::Run.prepend(RspecProfilingExt::Run)
     config.collector = RspecProfilingExt::Collectors::CSVWithTimestamps
     config.csv_path = -> do
-      prefix = "#{ENV['CI_JOB_NAME']}-".gsub(/[ \/]/, '-') if ENV['CI_JOB_NAME']
+      prefix = "#{ENV['CI_JOB_NAME']}-".gsub(%r{[ /]}, '-') if ENV['CI_JOB_NAME']
       "rspec_profiling/#{prefix}#{Time.now.to_i}-#{SecureRandom.hex(8)}-rspec-data.csv"
     end
   end