#!/usr/bin/env ruby
# -*- coding: binary -*-

# $Id$
# $Revision$

msfbase = __FILE__
while File.symlink?(msfbase)
	msfbase = File.expand_path(File.readlink(msfbase), File.dirname(msfbase))
end

@args = ARGV.dup

# May be changed
@configdir = File.expand_path(File.join(File.dirname(msfbase), "data", "svn"))

Dir.chdir(File.dirname(msfbase))

$stderr.puts "[*]"
$stderr.puts "[*] Attempting to update the Metasploit Framework..."
$stderr.puts "[*]"
$stderr.puts ""

if not (Process.uid == 0 or File.stat(msfbase).owned?)
	$stderr.puts "[-] ERROR: User running msfupdate does not own the metasploit install"
	$stderr.puts "Please run msfupdate as the same user who installed metasploit."
end

@args.each_with_index do |arg,i|
	case arg
	# Handle the old wait/nowait argument behavior
	when "wait", "nowait"
		@wait_index = i
		@actually_wait = (arg == "wait")
	# An empty or absent config-dir means a default config-dir
	when "--config-dir"
		@configdir_index = i
	# A defined config dir means a defined config-dir
	when /--config-dir=(.*)?/
		# Spaces in the directory should be fine since this whole thing is passed
		# as a single argument via the multi-arg syntax for system() below.
		# TODO: Test this spaces business. I don't buy it. -todb
		@configdir = $1
		@configdir_index = i
	end
end

@args[@wait_index] = nil      if @wait_index
@args[@configdir_index] = nil if @configdir_index
@args = @args.compact
@args.push("--config-dir=#{@configdir}")
@args.push("--non-interactive")

res = system("svn", "cleanup")
if res.nil?
	$stderr.puts "[-] ERROR: Failed to run svn"
	$stderr.puts ""
	$stderr.puts "[-] If you used a binary installer, make sure you run the symlink in"
	$stderr.puts "[-] /usr/local/bin instead of running this file directly (e.g.: ./msfupdate)"
	$stderr.puts "[-] to ensure a proper environment."
else
	# Cleanup worked, go ahead and update
	system("svn", "update", *@args)
end

if @actually_wait
	$stderr.puts ""
	$stderr.puts "[*] Please hit enter to exit"
	$stderr.puts ""
	$stdin.readline
end