From: "James M. Lawrence" <redmine@...>
Date: 2008-12-19T19:34:21+09:00
Subject: [ruby-core:20695] [Bug #907] Various system() and backticks problems on Windows

Bug #907: Various system() and backticks problems on Windows
http://redmine.ruby-lang.org/issues/show/907

Author: James M. Lawrence
Status: Open, Priority: Normal
Category: core

* system("x/y.bat") fails because it is interpreted as option /y being
passed to command x.

* system("y") fails when y.bat is in the current directory and "."  is
in PATH.  "y" succeeds in the console shell window.  Similar problems
occur when passing relative or absolute paths.

* system("c:/x/z", "1") fails to spawn c:/x/z.exe.

* Variables are not expanded:
system(%{ruby -e "p '%PATH%'"})  #=> "%PATH%" 

* Non-existent file in backticks `noexist` raises Errno::ENOENT.
On Linux no exception is raised.

Proposed spec:
* http://github.com/quix/alt_system/tree/master/spec/system_spec.rb

Current failures on the spec:
* http://drake.rubyforge.org/tmp/system_spec_kernel.html

A prototype patch which fits the spec:
* http://drake.rubyforge.org/tmp/system_spec_alt.html 
* http://github.com/quix/alt_system/tree/master/lib/alt_system/alt_system.rb


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