#!/usr/bin/env ruby
#Adjust path in case called directly and not through gem
$:.unshift "#{File.expand_path(File.dirname(__FILE__))}/../lib"

require 'brakeman'
require 'brakeman/options'
require 'brakeman/version'

#Parse options
begin
  options, parser = Brakeman::Options.parse! ARGV
rescue OptionParser::ParseError => e
  $stderr.puts e.message.capitalize
  $stderr.puts "Please see `brakeman --help` for valid options"
  exit -1
end

#Exit early for these options
if options[:list_checks]
  Brakeman.list_checks
  exit
elsif options[:create_config]
  Brakeman.dump_config options
  exit
elsif options[:show_help]
  puts parser
  exit
elsif options[:show_version]
  puts "brakeman #{Brakeman::Version}"
  exit
elsif options[:install_rake_task]
  Brakeman.install_rake_task
  exit
end

#Set application path according to the commandline arguments
unless options[:app_path]
  if ARGV[-1].nil?
    options[:app_path] = File.expand_path "."
  else
    options[:app_path] = File.expand_path ARGV[-1]
  end
end

trap("INT") do
  $stderr.puts "\nInterrupted - exiting."

  if options[:debug]
    $stderr.puts caller
  end

  exit!
end

if options[:previous_results_json]
  vulns = Brakeman.compare options
  puts JSON.pretty_generate(vulns)
else
  #Run scan and output a report
  tracker = Brakeman.run options.merge(:print_report => true, :quiet => options[:quiet])

  #Return error code if --exit-on-warn is used and warnings were found
  if options[:exit_on_warn] and not tracker.checks.all_warnings.empty?
    exit Brakeman::Warnings_Found_Exit_Code
  end
end