Enable more frozen string in lib/**/*.rb

Enables frozen for the following:

* lib/*.rb
* lib/banzai/**/*.rb
* lib/bitbucket/**/*.rb
* lib/constraints/**/*.rb
* lib/container_registry/**/*.rb
* lib/declarative_policy/**/*.rb

Partially addresses #47424.

50 files changed, 100 insertions, 0 deletions

diff --git a/lib/banzai/color_parser.rb b/lib/banzai/color_parser.rb
index 355c364b07b..6d01d51955c 100644
--- a/lib/banzai/color_parser.rb
+++ b/lib/banzai/color_parser.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module ColorParser
     ALPHA = /0(?:\.\d+)?|\.\d+|1(?:\.0+)?/ # 0.0..1.0
diff --git a/lib/banzai/commit_renderer.rb b/lib/banzai/commit_renderer.rb
index c351a155ae5..f346151a3c1 100644
--- a/lib/banzai/commit_renderer.rb
+++ b/lib/banzai/commit_renderer.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module CommitRenderer
     ATTRIBUTES = [:description, :title].freeze
diff --git a/lib/banzai/cross_project_reference.rb b/lib/banzai/cross_project_reference.rb
index 43f913a8859..b7344808989 100644
--- a/lib/banzai/cross_project_reference.rb
+++ b/lib/banzai/cross_project_reference.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   # Common methods for ReferenceFilters that support an optional cross-project
   # reference.
diff --git a/lib/banzai/filter.rb b/lib/banzai/filter.rb
index 3eb544dfef9..7d9766c906c 100644
--- a/lib/banzai/filter.rb
+++ b/lib/banzai/filter.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module Filter
     def self.[](name)
diff --git a/lib/banzai/filter/markdown_engines/common_mark.rb b/lib/banzai/filter/markdown_engines/common_mark.rb
index dbb25280849..e52c0d15b31 100644
--- a/lib/banzai/filter/markdown_engines/common_mark.rb
+++ b/lib/banzai/filter/markdown_engines/common_mark.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # `CommonMark` markdown engine for GitLab's Banzai markdown filter.
 # This module is used in Banzai::Filter::MarkdownFilter.
 # Used gem is `commonmarker` which is a ruby wrapper for libcmark (CommonMark parser)
diff --git a/lib/banzai/filter/markdown_engines/redcarpet.rb b/lib/banzai/filter/markdown_engines/redcarpet.rb
index ac99941fefa..ec150d041ff 100644
--- a/lib/banzai/filter/markdown_engines/redcarpet.rb
+++ b/lib/banzai/filter/markdown_engines/redcarpet.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # `Redcarpet` markdown engine for GitLab's Banzai markdown filter.
 # This module is used in Banzai::Filter::MarkdownFilter.
 # Used gem is `redcarpet` which is a ruby library for markdown processing.
diff --git a/lib/banzai/filter/wiki_link_filter/rewriter.rb b/lib/banzai/filter/wiki_link_filter/rewriter.rb
index 4bf80aff418..f4cc8beeb52 100644
--- a/lib/banzai/filter/wiki_link_filter/rewriter.rb
+++ b/lib/banzai/filter/wiki_link_filter/rewriter.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module Filter
     class WikiLinkFilter < HTML::Pipeline::Filter
diff --git a/lib/banzai/filter_array.rb b/lib/banzai/filter_array.rb
index 77835a14027..818af4643a7 100644
--- a/lib/banzai/filter_array.rb
+++ b/lib/banzai/filter_array.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   class FilterArray < Array
     # Insert a value immediately after another value
diff --git a/lib/banzai/issuable_extractor.rb b/lib/banzai/issuable_extractor.rb
index ae7dc71e7eb..0a05d46db4c 100644
--- a/lib/banzai/issuable_extractor.rb
+++ b/lib/banzai/issuable_extractor.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   # Extract references to issuables from multiple documents
 
diff --git a/lib/banzai/object_renderer.rb b/lib/banzai/object_renderer.rb
index 7137c1da57d..75661ffa233 100644
--- a/lib/banzai/object_renderer.rb
+++ b/lib/banzai/object_renderer.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   # Class for rendering multiple objects (e.g. Note instances) in a single pass,
   # using +render_field+ to benefit from caching in the database. Rendering and
diff --git a/lib/banzai/pipeline.rb b/lib/banzai/pipeline.rb
index 142a9962eb1..e8a81bebaa9 100644
--- a/lib/banzai/pipeline.rb
+++ b/lib/banzai/pipeline.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module Pipeline
     def self.[](name)
diff --git a/lib/banzai/pipeline/ascii_doc_pipeline.rb b/lib/banzai/pipeline/ascii_doc_pipeline.rb
index 1048b927cd3..cc4af280872 100644
--- a/lib/banzai/pipeline/ascii_doc_pipeline.rb
+++ b/lib/banzai/pipeline/ascii_doc_pipeline.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module Pipeline
     class AsciiDocPipeline < BasePipeline
diff --git a/lib/banzai/pipeline/atom_pipeline.rb b/lib/banzai/pipeline/atom_pipeline.rb
index 9694e4bc23f..13a342351b6 100644
--- a/lib/banzai/pipeline/atom_pipeline.rb
+++ b/lib/banzai/pipeline/atom_pipeline.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module Pipeline
     class AtomPipeline < FullPipeline
diff --git a/lib/banzai/pipeline/base_pipeline.rb b/lib/banzai/pipeline/base_pipeline.rb
index 3ae3bed570d..87d1cf9912f 100644
--- a/lib/banzai/pipeline/base_pipeline.rb
+++ b/lib/banzai/pipeline/base_pipeline.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module Pipeline
     class BasePipeline
diff --git a/lib/banzai/pipeline/broadcast_message_pipeline.rb b/lib/banzai/pipeline/broadcast_message_pipeline.rb
index 5dd572de3a1..a3d63e0aaf5 100644
--- a/lib/banzai/pipeline/broadcast_message_pipeline.rb
+++ b/lib/banzai/pipeline/broadcast_message_pipeline.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module Pipeline
     class BroadcastMessagePipeline < DescriptionPipeline
diff --git a/lib/banzai/pipeline/combined_pipeline.rb b/lib/banzai/pipeline/combined_pipeline.rb
index 60190f8d9dd..56b424dc8e0 100644
--- a/lib/banzai/pipeline/combined_pipeline.rb
+++ b/lib/banzai/pipeline/combined_pipeline.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module Pipeline
     module CombinedPipeline
diff --git a/lib/banzai/pipeline/commit_description_pipeline.rb b/lib/banzai/pipeline/commit_description_pipeline.rb
index 607c2731ed3..e8ec7453f0f 100644
--- a/lib/banzai/pipeline/commit_description_pipeline.rb
+++ b/lib/banzai/pipeline/commit_description_pipeline.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module Pipeline
     class CommitDescriptionPipeline < SingleLinePipeline
diff --git a/lib/banzai/pipeline/description_pipeline.rb b/lib/banzai/pipeline/description_pipeline.rb
index 042fb2e6e14..d5ff9b025cc 100644
--- a/lib/banzai/pipeline/description_pipeline.rb
+++ b/lib/banzai/pipeline/description_pipeline.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module Pipeline
     class DescriptionPipeline < FullPipeline
diff --git a/lib/banzai/pipeline/email_pipeline.rb b/lib/banzai/pipeline/email_pipeline.rb
index 8f5f144d582..2c08581ce0d 100644
--- a/lib/banzai/pipeline/email_pipeline.rb
+++ b/lib/banzai/pipeline/email_pipeline.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module Pipeline
     class EmailPipeline < FullPipeline
diff --git a/lib/banzai/pipeline/full_pipeline.rb b/lib/banzai/pipeline/full_pipeline.rb
index 3c974f73176..a5b1cbdd030 100644
--- a/lib/banzai/pipeline/full_pipeline.rb
+++ b/lib/banzai/pipeline/full_pipeline.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module Pipeline
     class FullPipeline < CombinedPipeline.new(PlainMarkdownPipeline, GfmPipeline)
diff --git a/lib/banzai/pipeline/gfm_pipeline.rb b/lib/banzai/pipeline/gfm_pipeline.rb
index bd34614f149..be75e34a673 100644
--- a/lib/banzai/pipeline/gfm_pipeline.rb
+++ b/lib/banzai/pipeline/gfm_pipeline.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module Pipeline
     class GfmPipeline < BasePipeline
diff --git a/lib/banzai/pipeline/markup_pipeline.rb b/lib/banzai/pipeline/markup_pipeline.rb
index c56d908009f..db79a22549c 100644
--- a/lib/banzai/pipeline/markup_pipeline.rb
+++ b/lib/banzai/pipeline/markup_pipeline.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module Pipeline
     class MarkupPipeline < BasePipeline
diff --git a/lib/banzai/pipeline/note_pipeline.rb b/lib/banzai/pipeline/note_pipeline.rb
index 7890f20f716..4480d7ede05 100644
--- a/lib/banzai/pipeline/note_pipeline.rb
+++ b/lib/banzai/pipeline/note_pipeline.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module Pipeline
     class NotePipeline < FullPipeline
diff --git a/lib/banzai/pipeline/plain_markdown_pipeline.rb b/lib/banzai/pipeline/plain_markdown_pipeline.rb
index 3f45db21869..b64f13cde47 100644
--- a/lib/banzai/pipeline/plain_markdown_pipeline.rb
+++ b/lib/banzai/pipeline/plain_markdown_pipeline.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module Pipeline
     class PlainMarkdownPipeline < BasePipeline
diff --git a/lib/banzai/pipeline/post_process_pipeline.rb b/lib/banzai/pipeline/post_process_pipeline.rb
index 0b2e584ef16..63a998a2c1f 100644
--- a/lib/banzai/pipeline/post_process_pipeline.rb
+++ b/lib/banzai/pipeline/post_process_pipeline.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module Pipeline
     class PostProcessPipeline < BasePipeline
diff --git a/lib/banzai/pipeline/pre_process_pipeline.rb b/lib/banzai/pipeline/pre_process_pipeline.rb
index 6cf219661d3..c937f783180 100644
--- a/lib/banzai/pipeline/pre_process_pipeline.rb
+++ b/lib/banzai/pipeline/pre_process_pipeline.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module Pipeline
     class PreProcessPipeline < BasePipeline
diff --git a/lib/banzai/pipeline/relative_link_pipeline.rb b/lib/banzai/pipeline/relative_link_pipeline.rb
index 270990e7ab4..88651892acc 100644
--- a/lib/banzai/pipeline/relative_link_pipeline.rb
+++ b/lib/banzai/pipeline/relative_link_pipeline.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module Pipeline
     class RelativeLinkPipeline < BasePipeline
diff --git a/lib/banzai/pipeline/single_line_pipeline.rb b/lib/banzai/pipeline/single_line_pipeline.rb
index cd5a6c8875c..61ff7b0bcce 100644
--- a/lib/banzai/pipeline/single_line_pipeline.rb
+++ b/lib/banzai/pipeline/single_line_pipeline.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module Pipeline
     class SingleLinePipeline < GfmPipeline
diff --git a/lib/banzai/pipeline/wiki_pipeline.rb b/lib/banzai/pipeline/wiki_pipeline.rb
index c37b8e71cb0..97a03895ff3 100644
--- a/lib/banzai/pipeline/wiki_pipeline.rb
+++ b/lib/banzai/pipeline/wiki_pipeline.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module Pipeline
     class WikiPipeline < FullPipeline
diff --git a/lib/banzai/querying.rb b/lib/banzai/querying.rb
index a19a05e8c0d..55aa5fa66c3 100644
--- a/lib/banzai/querying.rb
+++ b/lib/banzai/querying.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module Querying
     module_function
diff --git a/lib/banzai/redactor.rb b/lib/banzai/redactor.rb
index e77bee78496..7db5f5e1f7d 100644
--- a/lib/banzai/redactor.rb
+++ b/lib/banzai/redactor.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   # Class for removing Markdown references a certain user is not allowed to
   # view.
diff --git a/lib/banzai/reference_extractor.rb b/lib/banzai/reference_extractor.rb
index 78588299c18..3fc3ae02088 100644
--- a/lib/banzai/reference_extractor.rb
+++ b/lib/banzai/reference_extractor.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   # Extract possible GFM references from an arbitrary String for further processing.
   class ReferenceExtractor
diff --git a/lib/banzai/reference_parser.rb b/lib/banzai/reference_parser.rb
index 557bec4316e..efe15096f08 100644
--- a/lib/banzai/reference_parser.rb
+++ b/lib/banzai/reference_parser.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module ReferenceParser
     # Returns the reference parser class for the given type
diff --git a/lib/banzai/reference_parser/base_parser.rb b/lib/banzai/reference_parser/base_parser.rb
index 334ba97bfb3..8419769085a 100644
--- a/lib/banzai/reference_parser/base_parser.rb
+++ b/lib/banzai/reference_parser/base_parser.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module ReferenceParser
     # Base class for reference parsing classes.
diff --git a/lib/banzai/reference_parser/commit_parser.rb b/lib/banzai/reference_parser/commit_parser.rb
index 30dc87248b4..0bfb6a92020 100644
--- a/lib/banzai/reference_parser/commit_parser.rb
+++ b/lib/banzai/reference_parser/commit_parser.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module ReferenceParser
     class CommitParser < BaseParser
diff --git a/lib/banzai/reference_parser/commit_range_parser.rb b/lib/banzai/reference_parser/commit_range_parser.rb
index 2920e886938..480eefd5c4d 100644
--- a/lib/banzai/reference_parser/commit_range_parser.rb
+++ b/lib/banzai/reference_parser/commit_range_parser.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module ReferenceParser
     class CommitRangeParser < BaseParser
diff --git a/lib/banzai/reference_parser/directly_addressed_user_parser.rb b/lib/banzai/reference_parser/directly_addressed_user_parser.rb
index 77df9bbd024..1f18f82b916 100644
--- a/lib/banzai/reference_parser/directly_addressed_user_parser.rb
+++ b/lib/banzai/reference_parser/directly_addressed_user_parser.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module ReferenceParser
     class DirectlyAddressedUserParser < UserParser
diff --git a/lib/banzai/reference_parser/epic_parser.rb b/lib/banzai/reference_parser/epic_parser.rb
index 08b8a4c9a0f..7f366f0f8ab 100644
--- a/lib/banzai/reference_parser/epic_parser.rb
+++ b/lib/banzai/reference_parser/epic_parser.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module ReferenceParser
     # The actual parser is implemented in the EE mixin
diff --git a/lib/banzai/reference_parser/external_issue_parser.rb b/lib/banzai/reference_parser/external_issue_parser.rb
index 1802cd04854..029b09dcd25 100644
--- a/lib/banzai/reference_parser/external_issue_parser.rb
+++ b/lib/banzai/reference_parser/external_issue_parser.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module ReferenceParser
     class ExternalIssueParser < BaseParser
diff --git a/lib/banzai/reference_parser/issuable_parser.rb b/lib/banzai/reference_parser/issuable_parser.rb
index fad127d7e5b..f8c26288017 100644
--- a/lib/banzai/reference_parser/issuable_parser.rb
+++ b/lib/banzai/reference_parser/issuable_parser.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module ReferenceParser
     class IssuableParser < BaseParser
diff --git a/lib/banzai/reference_parser/issue_parser.rb b/lib/banzai/reference_parser/issue_parser.rb
index 7b5915899cf..97c7173ac0f 100644
--- a/lib/banzai/reference_parser/issue_parser.rb
+++ b/lib/banzai/reference_parser/issue_parser.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module ReferenceParser
     class IssueParser < IssuableParser
diff --git a/lib/banzai/reference_parser/label_parser.rb b/lib/banzai/reference_parser/label_parser.rb
index 30e2a012f09..398cc45fea0 100644
--- a/lib/banzai/reference_parser/label_parser.rb
+++ b/lib/banzai/reference_parser/label_parser.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module ReferenceParser
     class LabelParser < BaseParser
diff --git a/lib/banzai/reference_parser/merge_request_parser.rb b/lib/banzai/reference_parser/merge_request_parser.rb
index 9e5d55f72bc..e8147ac591a 100644
--- a/lib/banzai/reference_parser/merge_request_parser.rb
+++ b/lib/banzai/reference_parser/merge_request_parser.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module ReferenceParser
     class MergeRequestParser < IssuableParser
diff --git a/lib/banzai/reference_parser/milestone_parser.rb b/lib/banzai/reference_parser/milestone_parser.rb
index 68675abe22a..925d736fb9a 100644
--- a/lib/banzai/reference_parser/milestone_parser.rb
+++ b/lib/banzai/reference_parser/milestone_parser.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module ReferenceParser
     class MilestoneParser < BaseParser
diff --git a/lib/banzai/reference_parser/snippet_parser.rb b/lib/banzai/reference_parser/snippet_parser.rb
index 3ade168b566..6f6ac08de04 100644
--- a/lib/banzai/reference_parser/snippet_parser.rb
+++ b/lib/banzai/reference_parser/snippet_parser.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module ReferenceParser
     class SnippetParser < BaseParser
diff --git a/lib/banzai/reference_parser/user_parser.rb b/lib/banzai/reference_parser/user_parser.rb
index ceb7f1d165c..067b06b7590 100644
--- a/lib/banzai/reference_parser/user_parser.rb
+++ b/lib/banzai/reference_parser/user_parser.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module ReferenceParser
     class UserParser < BaseParser
diff --git a/lib/banzai/renderer.rb b/lib/banzai/renderer.rb
index 0050295eeda..c7239a5eaa6 100644
--- a/lib/banzai/renderer.rb
+++ b/lib/banzai/renderer.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module Renderer
     # Convert a Markdown String into an HTML-safe String of HTML
diff --git a/lib/banzai/renderer/common_mark/html.rb b/lib/banzai/renderer/common_mark/html.rb
index 0b27316da1b..837665451a1 100644
--- a/lib/banzai/renderer/common_mark/html.rb
+++ b/lib/banzai/renderer/common_mark/html.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module Renderer
     module CommonMark
diff --git a/lib/banzai/renderer/redcarpet/html.rb b/lib/banzai/renderer/redcarpet/html.rb
index 30e815f1224..84931fdc784 100644
--- a/lib/banzai/renderer/redcarpet/html.rb
+++ b/lib/banzai/renderer/redcarpet/html.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module Renderer
     module Redcarpet
diff --git a/lib/banzai/request_store_reference_cache.rb b/lib/banzai/request_store_reference_cache.rb
index 9a9704f9837..91fb489b72d 100644
--- a/lib/banzai/request_store_reference_cache.rb
+++ b/lib/banzai/request_store_reference_cache.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Banzai
   module RequestStoreReferenceCache
     def cached_call(request_store_key, cache_key, path: [])