rake_builder.rb, line 29, builds a rake command to execute to install a gem:

cmd += " RUBYARCHDIR=#{dest_path} RUBYLIBDIR=#{dest_path}" # ENV is frozen

The problem is that this breaks with paths that have spaces.  For example:

gem install -i C:\Program Files ruby-prof

Creates this rake command:

rake RUBYARCHDIR=C:/Program Files/gems/ruby-prof-0.7.1-x86-mswin32-60/lib
RUBYLIBDIR=C:/Program Files/gems/ruby-prof-0.7.1-x86-mswin32-60/lib

Which executes as this:

rake RUBYARCHDIR=Files/gems/ruby-prof-0.7.1-x86-mswin32-60/lib
RUBYLIBDIR=Files/gems/ruby-prof-0.7.1-x86-mswin32-60/lib

And thus fails.

To fix, the cmd line needs to enclose paths in quotes, like this:

cmd += " RUBYARCHDIR=\"#{dest_path}\" RUBYLIBDIR=\"#{dest_path}\"" # ENV is frozen

Thanks - Charlie

Date: 2009-01-02 19:03
Sender: Charlie Savage

Hi Dan,

Sounds good - thanks.

Charlie

Date: 2009-01-02 12:55
Sender: Daniel Berger

Ok, I've split the difference. The dest_path is now quoted if
it contains spaces.

Fixed in trunk. Thanks for the clarification and the report.

Regards,

Dan

Date: 2009-01-02 10:27
Sender: Darren Schreiber

I stumbled upon this when I was NOT using the -i flag. It happens
when someone installs Ruby and Rails in C:\Program Files\Ruby .

Most people are probably not running into this because, on Windows,
the default install is to C:\Ruby

But it is definitely an issue that occurs with spaces in the
path. The suggested fix works and does not appear to break anything
else.

Date: 2009-01-02 09:08
Sender: Charlie Savage

Hi Dan,

The problem is that doing a default 'gem install' fails if
you have a space in the path.  

My example using 'gem install -i' was simply showing the
issue.  It seems unreasonable to force users to specify the
-i argument just because they have a space in their path.

Charlie 

Date: 2008-12-31 05:05
Sender: Daniel Berger

Upon further review, this is an issue with the way you specified
your arguments on the command line, i.e. you never quoted the
path.

It should be gem install -i "C:\Program Files"
ruby-prof.

Regards,

Dan

Date: 2008-12-29 04:02
Sender: Darren Schreiber

This fix worked for me.

Date: 2008-12-25 09:36
Sender: Daniel Berger

Looks good to me. I vote to apply.

Dan