[ruby-core:103893] [Ruby master Bug#1287] $? not set after Open3::popen3

Issue #1287 has been updated by schneems (Richard Schneeman).


FWIW the work around is to capture the status and re-exec with an exit. It works, but the downside is that shell invocations are not cheap:

``` ruby
irb(main):042:0> a, b, c = Open3.capture3("ls /does/not/exist")
irb(main):043:0> `exit #{c.exitstatus}`
=> ""
irb(main):044:0> $?
=> #<Process::Status: pid 78179 exit 1>
```


----------------------------------------
Bug #1287: $? not set after Open3::popen3
https://bugs.ruby-lang.org/issues/1287#change-92017

* Author: phasis68 (Heesob Park)
* Status: Rejected
* Priority: Normal
* Target version: 1.9.1
* ruby -v: ruby 1.9.1p0 (2009-01-30 revision 21907) [i686-linux]
----------------------------------------
=begin
 $? is not set after popen3 in 1.9.1
 
 Try following code:
 
 require 'open3'
 status = Open3::popen3("echo hello") do |stdin,stdout,stderr|
     stdout.each { |line| puts "stdout:"+line }
 end
 p $?
 
 [sidns@ns ~]$ ruby -v po.rb
 ruby 1.8.6 (2007-09-24 patchlevel 111) [i686-linux]
 stdout:hello
 #<Process::Status: pid=20140,exited(0)>
 
 [siweb@localhost ~]$ ruby -v po.rb
 ruby 1.9.1p0 (2009-01-30 revision 21907) [i686-linux]
 stdout:hello
 nil
=end




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