paolodona / scripts

a collection of useful ruby scripts

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scripts / stakeout
100755 34 lines (24 sloc) 0.512 kb
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#!/usr/bin/env ruby
 
if ARGV.size < 2
	puts "Usage: stakeout.rb <command> [files to watch]+"
	exit 1
end
 
command = ARGV.shift
files = {}
 
ARGV.each do |arg|
	Dir[arg].each { |file|
		files[file] = File.mtime(file)
	}
end
 
loop do
 
	sleep 1
 
	changed_file, last_changed = files.find { |file, last_changed|
		File.mtime(file) > last_changed
	}
 
	if changed_file
		files[changed_file] = File.mtime(changed_file)
		puts "=> #{changed_file} changed, running #{command}"
		system(command)
		puts "=> done"
	end
 
end