Add custom regex rules for rubocop (#45)

Author: Peralphix

Gemfile.lock

@@ -10,7 +10,7 @@ GIT
 PATH
   remote: .
   specs:
-    umbrellio-utils (1.10.2)
+    umbrellio-utils (1.11.0)
       memery (~> 1)
 
 GEM

lib/umbrellio_utils/rubocop.rb

@@ -0,0 +1,3 @@
+# frozen_string_literal: true
+
+require "umbrellio_utils/rubocop/cop/custom/regex_rules"

lib/umbrellio_utils/rubocop/cop/custom/regex_rules.rb

@@ -0,0 +1,55 @@
+# frozen_string_literal: true
+
+module RuboCop
+  module Cop
+    module Custom
+      class RegexRules < Base
+        def on_new_investigation
+          return if processed_source.blank?
+
+          rules.each do |rule|
+            next unless applies_to_file?(rule)
+
+            regex = Regexp.new(rule["regex"])
+            processed_source.raw_source.each_line.with_index(1) do |line, lineno|
+              next unless (match = regex.match(line))
+
+              range = range_for_match(lineno, match)
+              add_offense(range, message: rule["message"])
+            end
+          end
+        end
+
+        private
+
+        def rules
+          cop_config["Rules"] || []
+        end
+
+        def applies_to_file?(rule)
+          path = processed_source.path.sub("#{Dir.pwd}/", "") # relative path
+
+          # Check exclusions first
+          if rule["exclude_paths"]&.any? do |pattern|
+            File.fnmatch?(pattern, path)
+          end
+            return false
+          end
+
+          # Then check inclusions
+          return true unless rule["paths"] # no restriction
+
+          rule["paths"].any? { |pattern| File.fnmatch?(pattern, path, File::FNM_PATHNAME) }
+        end
+
+        def range_for_match(lineno, match)
+          buffer = processed_source.buffer
+          line_range = buffer.line_range(lineno)
+          start_pos = line_range.begin_pos + match.begin(0)
+          end_pos = line_range.begin_pos + match.end(0)
+          Parser::Source::Range.new(buffer, start_pos, end_pos)
+        end
+      end
+    end
+  end
+end

lib/umbrellio_utils/version.rb

@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module UmbrellioUtils
-  VERSION = "1.10.2"
+  VERSION = "1.11.0"
 end