Remove restrict_special_characters_in_project_path feature flag

Changelog: other

app/models/project.rb

@@ -497,7 +497,10 @@ class Project < ApplicationRecord
     presence: true,
     project_path: true,
     length: { maximum: 255 }
-  validate :container_registry_project_path_validation
+  validates :path,
+    format: { with: Gitlab::Regex.oci_repository_path_regex,
+              message: Gitlab::Regex.oci_repository_path_regex_message },
+    if: :path_changed?
 
   validates :project_feature, presence: true
 
@@ -888,14 +891,6 @@ class Project < ApplicationRecord
     super
   end
 
-  def container_registry_project_path_validation
-    if Feature.enabled?(:restrict_special_characters_in_project_path, self, default_enabled: :yaml) &&
-        path_changed? &&
-        !path.match?(Gitlab::Regex.oci_repository_path_regex)
-      errors.add(:path, Gitlab::Regex.oci_repository_path_regex_message)
-    end
-  end
-
   def parent_loaded?
     association(:namespace).loaded?
   end

config/feature_flags/development/restrict_special_characters_in_project_path.yml

----
-name: restrict_special_characters_in_project_path
-introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/80055
-rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/353054
-milestone: '14.8'
-type: development
-group: group::workspace
-default_enabled: false

spec/models/project_spec.rb

@@ -630,38 +630,6 @@ RSpec.describe Project, factory_default: :keep do
 
           expect(project).not_to be_valid
         end
-
-        context 'restrict_special_characters_in_project_path feature flag is disabled' do
-          before do
-            stub_feature_flags(restrict_special_characters_in_project_path: false)
-          end
-
-          it "allows a path ending in '#{special_character}'" do
-            project = build(:project, path: "foo#{special_character}")
-
-            expect(project).to be_valid
-          end
-        end
-      end
-
-      context 'restrict_special_characters_in_project_path feature flag is disabled' do
-        before do
-          stub_feature_flags(restrict_special_characters_in_project_path: false)
-        end
-
-        %w[. _].each do |special_character|
-          it "allows a path starting with '#{special_character}'" do
-            project = build(:project, path: "#{special_character}foo")
-
-            expect(project).to be_valid
-          end
-        end
-
-        it "rejects a path starting with '-'" do
-          project = build(:project, path: "-foo")
-
-          expect(project).not_to be_valid
-        end
       end
     end
   end