[Rake-devel] Question about system call and multiple arguments.

Assaf Arkin assaf at labnotes.org
Sun Nov 2 00:34:37 EDT 2008


without shell expansion (multiple args) you must provide the exact  
executable file name. shell expension can add the file name extension  
for you.

Assaf



On Nov 1, 2008, at 9:42 AM, "Luis Lavena" <luislavena at gmail.com> wrote:

> On Sat, Nov 1, 2008 at 1:26 PM, Luis Lavena <luislavena at gmail.com>  
> wrote:
>> Hello Everybody,
>>
>> [skip all the rambling]
>>
>
> I just realized how small and simple is the problem, and is not Rake  
> fault.
>
> - The multiple arguments rake is issuing is OK.
> - system(...) is correctly accepting them.
>
> But, system(...) on Windows is broken.
>
> Previous test was using the full path to ruby location (using RUBY
> constant defined in rake.rb:942). The thing is that Ruby on Windows
> fails on that.
>
> fullpath without extension (C:/Ruby/bin/ruby) works ok with one  
> argument:
>
> $ irb
> irb(main):001:0> system("C:/Ruby/bin/ruby -v")
> ruby 1.8.5 (2007-09-24 patchlevel 114) [i386-mswin32]
> => true
>
> But not with multiple:
>
> irb(main):002:0> system("C:/Ruby/bin/ruby", "-v")
> => false
>
> If instead I append the extension, it works.
>
> irb(main):003:0> system("C:/Ruby/bin/ruby.exe", "-v")
> ruby 1.8.5 (2007-09-24 patchlevel 114) [i386-mswin32]
> => true
>
> The funny fact is that from command line, it works:
>
> Luis at KEORE (D:\Users\Luis\projects\oss\rake.git)
> $ C:/Ruby/bin/ruby -v
> ruby 1.8.5 (2007-09-24 patchlevel 114) [i386-mswin32]
>
> with or without extension.
>
> I consider this another bug, since the extension is not present or
> required in other platforms, but looks like ruby on windows lookup for
> executables is failing now.
>
> Please disregard previous message, a patch for Ruby is underway.
>
> -- 
> Luis Lavena
> AREA 17
> -
> Human beings, who are almost unique in having the ability to learn  
> from
> the experience of others, are also remarkable for their apparent
> disinclination to do so.
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