From: Coey Minear <cminear@...>
Date: 2007-08-08T04:17:24+09:00
Subject: Re: Need Solaris Help

ronald braswell writes:
 > On 8/7/07, Gregory Brown <gregory.t.brown@gmail.com> wrote:
 > >
 > > On 8/7/07, James Edward Gray II <james@grayproductions.net> wrote:
 > > > I'm told the following bit of code doesn't work on Solaris:
 > > >
 > > >        # A Unix savvy method to fetch the console columns, and rows.
 > > >        def terminal_size
 > > >         `stty size`.split.map { |x| x.to_i }.reverse
 > > >        end
 > > >
 > > > HighLine makes use of this method as does Capistrano by extension, so
 > > > we need find a portable solution.
 > >
 > > Ruport vendors this chunk of code, so sorry for the 'me too', but me too!
 > >
 > >
 > This is not pretty but it works on my Solaris 10 x64 box.   But you may have
 > been looking
 > for something more elegant.
 > 
 > if `stty` =~ /.*\brows = (\d+).*\bcolumns = (\d+)/
 >   rows    = $1
 >   columns = $2
 > end
 > 
 > Ron

Here's my stab at a cross-platform implementation:

 def terminal_size
   if /solaris/ =~ RUBY_PLATFORM
     output = `stty`
     [output.match('columns = (\d+)')[1].to_i, 
      output.match('rows = (\d+)')[1].to_i]
   else
      `stty size`.split.map { |x| x.to_i }.reverse
    end
 end

I did a quick test on Solaris (9 and 10), FreeBSD and Linux, and got
the same results in every case.  (No guarantees on AIX, HP-UX, etc.)

Coey