gdb_wrapper

#!/usr/bin/env ruby
 
require 'optparse'
require 'thread'
require 'ostruct'
 
$stdout.sync = true
$stderr.sync = true
 
options = OpenStruct.new(
 'pid' => nil,
 'sdk_path' => nil,
 'uid' => nil,
 'gems_to_include' => []
)
 
module DebugPrinter
 
 class << self
 attr_accessor :cli_debug
 
 def print_debug(msg)
 if DebugPrinter.cli_debug
 $stderr.puts msg
 end
 end
 end
 
end
 
DebugPrinter.cli_debug = ARGV.include? '--debug'
 
opts = OptionParser.new do |opts|
 # TODO need some banner
 opts.banner = <<EOB
Some useful banner.
EOB
 
 opts.on('--pid PID', 'pid of process you want to attach to for debugging') do |pid|
 options.pid = pid
 end
 
 opts.on('--ruby-path RUBY_PATH', 'path to ruby interpreter') do |ruby_path|
 options.ruby_path = ruby_path
 end
 
 opts.on('--uid UID', 'uid which this process should set after executing gdb attach') do |uid|
 options.uid = uid
 end
 
 opts.on('--include-gem GEM_LIB_PATH', 'lib of gem to include') do |gem_lib_path|
 options.gems_to_include << gem_lib_path
 end
end
 
opts.parse! ARGV
 
unless options.pid
 $stderr.puts 'You should specify PID of process you want to attach to'
 exit 1
end
 
unless options.ruby_path
 $stderr.puts 'You should specify path to the ruby interpreter'
 exit 1
end
 
argv = '["' + ARGV * '", "' + '"]'
child_argv = '["' + ARGV * '", "' + "', '--ignore-port" + '"]'
debugger_loader_path = File.expand_path(File.dirname(__FILE__)) + '/../lib/ruby-debug-ide/attach/debugger_loader'
 
options.gems_to_include.each do |gem_path|
 $LOAD_PATH.unshift(gem_path) unless $LOAD_PATH.include?(gem_path)
end
 
require 'ruby-debug-ide/greeter'
Debugger::print_greeting_msg($stdout, nil, nil)
 
require 'ruby-debug-ide/attach/util'
require 'ruby-debug-ide/attach/native_debugger'
require 'ruby-debug-ide/attach/process_thread'
 
 
child_pids = get_child_pids(options.pid.to_s)
attach_threads = Array.new
attach_threads << attach_and_return_thread(options, options.pid, debugger_loader_path, argv)
 
attach_threads << child_pids.map {|pid| attach_and_return_thread(options, pid, debugger_loader_path, child_argv)}
 
 
attach_threads.each {|thread| thread.join}
if options.uid
 DebugPrinter.print_debug("changing current uid from #{Process.uid} to #{options.uid}")
 Process::Sys.setuid(options.uid.to_i)
end
sleep