From: naruse <naruse@...>
Date: 2012-03-18T18:36:51+09:00
Subject: [ruby-core:43427] [ruby-trunk - Feature #4046][Feedback] Saving C's **argv and cwd allows Ruby programs to reliably restart themselves


Issue #4046 has been updated by naruse.

Description updated
Status changed from Open to Feedback

argv[0] is not reliable on some environment.

see "#! - the Unix truth as far as I know it."
http://homepages.cwi.nl/~aeb/std/hashexclam.html


I tried to implement with vendor specific functions.
https://gist.github.com/1129437

I gave up it because I can't find the way on AIX.
Therefore I concluded people should use RbConfig.
----------------------------------------
Feature #4046: Saving C's **argv and cwd allows Ruby programs to reliably restart themselves
https://bugs.ruby-lang.org/issues/4046#change-24746

Author: rocky
Status: Feedback
Priority: Normal
Assignee: 
Category: 
Target version: 2.0.0


=begin
 In a debugger often one gets to a state where one just wants to restart everything exactly the way the program was previously invoked. 
 
 It would helpful if Ruby saved **argv and cwd. 
 
 The attached patch saves these in RubyVM::OS_ARGV and RubyVM::OS_STARTUP_DIR. With this,
 if a Ruby program wants to restart itself, it can run:
 
   chdir RubyVM::OS_STARTUP_DIR
   exec(*RubyVM::OS_ARGV)
=end



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