evrone/evrone_opensource

# frozen_string_literal: true
 
module PipelineService
  module Improvement
    # Highlight gem syntax in README.md
    module ReadmeGemImprovement1
      module_function
 
      PATTERN = /(?<line>\n\n\s\s\s\s(?<gem>gem\s["'].+["'])\n\n)/.freeze
 
      # Replaces PATTERN with highlighted gem definition,
      # "
      #
      #     gem '<gem_name-here>'
      #
      # "
      #
      # becomes
      #
      # "
      #
      # ```ruby
      # gem '<gem_name-here>'
      # ```
      #
      # "
Identical blocks of code found in 2 locations. Consider refactoring.
      def call(directory)
        file    = "#{directory}/README.md"
        content = File.read(file)
        matched = content.match(PATTERN)
 
        return unless matched
 
        highlight_gem_syntax \
          file, content, matched[:line], matched[:gem]
      end
 
      def highlight_gem_syntax(filepath, content, line, gem)
        improvement = <<-STR.strip_heredoc
        ```ruby
        #{gem}
        ```
        STR
 
        improvement = "\n\n#{improvement}\n"
 
        File.open(filepath, 'wb') do |f|
          content.sub!(line, improvement)
          f.write(content)
        end
      end
    end
  end
end