Merge pull request #87 from equivalence1/ruby-attach-to-process

fixes for sudo issue + some small changes

bin/gdb_wrapper

@@ -72,13 +72,28 @@ options.gems_to_include.each do |gem_path|
 end
 
 require 'ruby-debug-ide/greeter'
-Debugger::print_greeting_msg(nil, nil)
+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'
 
 debugger = choose_debugger(options.ruby_path, options.pid, options.gems_to_include, debugger_loader_path, argv)
+
+trap('INT') do
+  unless debugger.exited?
+    $stderr.puts "backtraces for threads:\n\n"
+    process_threads = debugger.process_threads
+    if process_threads
+      process_threads.each do |thread|
+        $stderr.puts "#{thread.thread_info}\n#{thread.last_bt}\n\n"
+      end
+    end
+    debugger.exit
+  end
+  exit!
+end
+
 debugger.attach_to_process
 debugger.set_flags
 

lib/ruby-debug-ide.rb

@@ -111,7 +111,7 @@ def start_control(host, port, notify_dispatcher)
           # "localhost" and nil have problems on some systems.
           host ||= '127.0.0.1'
           server = TCPServer.new(host, port)
-          print_greeting_msg(host, port)
+          print_greeting_msg($stderr, host, port)
           notify_dispatcher(port) if notify_dispatcher
           while (session = server.accept)
             $stderr.puts "Connected from #{session.peeraddr[2]}" if Debugger.cli_debug

lib/ruby-debug-ide/attach/native_debugger.rb

@@ -118,8 +118,11 @@ def load_debugger
 
   end
 
+  def exited?
+    @pipe.closed?
+  end
+
   def exit
-    execute 'q'
     @pipe.close
   end
 

lib/ruby-debug-ide/attach/util.rb

@@ -21,15 +21,5 @@ def choose_debugger(ruby_path, pid, gems_to_include, debugger_loader_path, argv)
     raise 'Neither gdb nor lldb was found. Aborting.'
   end
 
-  trap('INT') do
-    unless debugger.pipe.closed?
-      $stderr.puts "backtraces for threads:\n\n"
-      debugger.process_threads.each do |thread|
-        $stderr.puts "#{thread.thread_info}\n#{thread.last_bt}\n\n"
-      end
-    end
-    exit!
-  end
-
   debugger
 end

lib/ruby-debug-ide/greeter.rb

@@ -10,7 +10,7 @@
 module Debugger
 
   class << self
-    def print_greeting_msg(host, port)
+    def print_greeting_msg(stream, host, port)
       base_gem_name = if defined?(JRUBY_VERSION) || RUBY_VERSION < '1.9.0'
                         'ruby-debug-base'
                       elsif RUBY_VERSION < '2.0.0'
@@ -33,7 +33,7 @@ def print_greeting_msg(host, port)
 
       msg = "Fast Debugger (ruby-debug-ide #{IDE_VERSION}, #{base_gem_name} #{VERSION}, file filtering is #{file_filtering_support})" + listens_on
 
-      $stderr.printf msg
+      stream.printf msg
     end
   end