upstreamize.rb

#!/usr/bin/env ruby
require 'tempfile'
require 'fileutils'

DRY_RUN = ENV['DRY_RUN'] || false
VERBOSE = ENV['VERBOSE'] || false

def putsv(str)
  return unless VERBOSE
  puts(str)
end

File.open('upstreamize_report.md', 'w') do |report|
report.write("# Upstreamization report from #{Time.now.utc}\n")
  ARGV.each do |input_file|
    begin
      report.write("\n## #{input_file}\n")
      report.write("| Line | Contents |\n")
      report.write("| --- | --- |\n")
      temp_file = Tempfile.new($PROGRAM_NAME)
      replacing = true
      File.open(temp_file, 'w') do |output|
        putsv "#{input_file}:"
        File.foreach(input_file).with_index do |orig_line, line_num|
          line = orig_line.dup
          if line =~ /^\[\[/
            output.write(line)
            next
          end
          replacing = !replacing if line =~ /^----/
          if replacing
            line.gsub!(%r{https?://access.redhat.com/documentation/en-us/red_hat_satellite/{ProductVersion}}, 'link:')
            line.gsub!(/Red( |\u{00A0}|{nbsp}) Hat Satellite( |\u{00A0}|{nbsp})6.\d/, '{ProjectNameXY}')
            line.gsub!(/Red( |\u{00A0}|{nbsp})Hat Satellite( |\u{00A0}|{nbsp})6/, '{ProjectNameX}')
            line.gsub!(/Red( |\u{00A0}|{nbsp})Hat Satellite/, '{ProjectName}')
            line.gsub!(/Satellite( |\u{00A0}|{nbsp})6.\d/, '{ProjectXY}')
            line.gsub!(/Satellite( |\u{00A0}|{nbsp})6/, '{ProjectX}')
            line.gsub!(/Satellite( |\u{00A0}|{nbsp})Server/, '{ProjectServer}')
            line.gsub!(/Satellite/, '{Project}')
            line.gsub!(/Capsule( |\u{00A0}|{nbsp})Server/, '{SmartProxyServer}')
            line.gsub!(/Capsules/, '{SmartProxies}')
            line.gsub!(/Capsule/, '{SmartProxy}')
          end
          if line != orig_line
            putsv("#{line_num + 1}: #{line}")
            report.write("| #{line_num + 1} | `#{line.chomp.tr('|`', '_\'')}` |\n")
          end
          output.write(line)
        end
      end
      puts("Unmatched '----' in #{input_file}!") unless replacing
      FileUtils.mv(temp_file, input_file) unless DRY_RUN
    rescue StandardError => e
      puts "Error processing #{input_file}: #{e}"
    ensure
      FileUtils.rm(temp_file.path) if File.exist?(temp_file.path)
    end
  end
end