far

#!/usr/bin/env ruby
#
# Super simple ruby script that can make it easier to run a command line
# recursive find/replace on a directory.  Because I was fed up of googling
# the relevant grep/sed command

require 'getoptlong'

opts = GetoptLong.new(
  [ '--help', '-h', GetoptLong::NO_ARGUMENT ],
  [ '--version', '-v', GetoptLong::NO_ARGUMENT ],
  [ '--find', '-f', GetoptLong::REQUIRED_ARGUMENT ],
  [ '--replace', '-r', GetoptLong::REQUIRED_ARGUMENT ]
)

find = ''
replace = ''

opts.each do |opt, arg|
	case opt
		when '--help'
			abort 'Example usage: \'far --find foo --replace bar\''
		when '--version'
			abort 'Find and Replace version 1.0'
		when '--find'
			find = arg
		when '--replace'
			replace = arg
	end
end

if (find == '') 
	puts "You didn't specify both a --find value and a --replace value"
else
	puts "Finding #{find}, replacing with #{replace}"

	Dir['**/*'].each do |path|
		if File.file?(path) and !File.binary?(path)
			puts "Processing file #{path}"
			begin
				text = File.read(path).gsub(find, replace)
				File.open(path, "w").write(text)
			rescue
				puts "Not a text file"
			end
		end
	end
end