Inline Gitlab::Blacklist in NamespaceValidator

app/validators/namespace_validator.rb

@@ -2,21 +2,49 @@
 #
 # Custom validator for GitLab namespace values.
 #
-# Values are checked for formatting and exclusion from `Gitlab::Blacklist.path`.
+# Values are checked for formatting and exclusion from a list of reserved path
+# names.
 class NamespaceValidator < ActiveModel::EachValidator
+  RESERVED = %w(
+    admin
+    all
+    assets
+    ci
+    dashboard
+    files
+    groups
+    help
+    hooks
+    issues
+    merge_requests
+    notes
+    profile
+    projects
+    public
+    repository
+    s
+    search
+    services
+    snippets
+    teams
+    u
+    unsubscribes
+    users
+  ).freeze
+
   def validate_each(record, attribute, value)
     unless value =~ Gitlab::Regex.namespace_regex
       record.errors.add(attribute, Gitlab::Regex.namespace_regex_message)
     end
 
-    if blacklisted?(value)
+    if reserved?(value)
       record.errors.add(attribute, "#{value} is a reserved name")
     end
   end
 
   private
 
-  def blacklisted?(value)
-    Gitlab::Blacklist.path.include?(value)
+  def reserved?(value)
+    RESERVED.include?(value)
   end
 end

lib/gitlab/blacklist.rb

-module Gitlab
-  module Blacklist
-    extend self
-
-    def path
-      %w(
-        admin
-        dashboard
-        files
-        groups
-        help
-        profile
-        projects
-        search
-        public
-        assets
-        u
-        s
-        teams
-        merge_requests
-        issues
-        users
-        snippets
-        services
-        repository
-        hooks
-        notes
-        unsubscribes
-        all
-        ci
-      )
-    end
-  end
-end