From: Ralph Mason <ralph.mason@...>
Date: 2001-12-09T05:09:52+09:00
Subject: [ruby-talk:27971] Re: stack overflow (was Ruby IDE?? What about using Eclipse??)

While I'm not a Unix bod, what about links? It would seem that a link could
easily cause infinite recursion with what you have here.

Ralph

----- Original Message -----
From: "Tobias DiPasquale" <anany@ece.villanova.edu>
Newsgroups: vill.ruby-talk
To: "ruby-talk ML" <ruby-talk@ruby-lang.org>
Sent: Sunday, December 09, 2001 7:54 AM
Subject: [ruby-talk:27964] Re: stack overflow (was Ruby IDE?? What about
using Eclipse??)


> I forgot to mention that this was on i686-linux version of Ruby 1.6.5.
> Thanks
>
> Tobias DiPasquale wrote:
>
> > [ruby-talk:27963] stack overflow (was Ruby IDE?? What about using
Eclipse??)
> > Hi all,
> >
> > Hearing all about this Eclipse project made me go and pull it down,
until
> > I realized that I had it already. So I unzipped it, and like a few
> > select annoying packages that I get from time to time, it installed
> > everything world-writeable. I was so mad that I wrote this Ruby script
> > (below) to change all the permissions back to 755/644 depending on the
> > file type. However, the following script always ends up erroring out
> > (error below). Is it just because the directory is too deep, or is there
> > an error in my recursion? Any help would be appreciated. Thanks in
advance!
> >
> > ======================= Code ========================
> > #!/usr/bin/env ruby
> >
> > def fixPermissions(filename)
> >    if FileTest.directory?(filename)
> >      File.chmod(0755, filename)
> >      printf "%s: changed to 0755\n", filename
> >    else
> >      if filename =~ /.sh$/ || filename =~ /.so$/
> >        File.chmod(0755, filename)
> >        printf "%s: changed to 0755\n", filename
> >      else
> >        File.chmod(0644, filename)
> >        printf "%s: changed to 0644\n", filename
> >      end
> >    end
> > end
> >
> > def traverseDirectory(files)
> >    files.each { |aFile|
> >      if FileTest.directory?(aFile) && (aFile != "." || aFile != "..")
> >        traverseDirectory(Dir.entries(aFile))
> >        puts "Entering directory " + aFile
> >      else
> >        fixPermissions(aFile)
> >      end
> >    }
> > end
> >
> > if __FILE__ == $0
> >    if ARGV.size != 1
> >      puts "Usage: permfix <directory>"
> >      exit
> >    end
> >
> >    if !FileTest.exist? ARGV[0]
> >      puts "Error: directory " + ARGV[0] + " does not exist!"
> >      exit
> >    end
> >
> >    if !FileTest.directory? ARGV[0]
> >      puts "Error: " + ARGV[0] + " is not a directory!"
> >      exit
> >    end
> >
> >    traverseDirectory Dir.entries(ARGV[0])
> > end
> >
> > ========================= Error =========================
> > [root@localhost home]# ./permfix eclipse
> > ./permfix:20:in `traverseDirectory': stack level too deep
(SystemStackError)
> >          from ./permfix:19:in `each'
> >          from ./permfix:19:in `traverseDirectory'
> >          from ./permfix:21:in `traverseDirectory'
> >          from ./permfix:19:in `each'
> >          from ./permfix:19:in `traverseDirectory'
> >          from ./permfix:21:in `traverseDirectory'
> >          from ./permfix:19:in `each'
> >          from ./permfix:19:in `traverseDirectory'
> >           ... 3168 levels...
> >          from ./permfix:21:in `traverseDirectory'
> >          from ./permfix:19:in `each'
> >          from ./permfix:19:in `traverseDirectory'
> >          from ./permfix:45
> > [root@localhost home]#
> >
> >
>
>
>
> --
> Tobias DiPasquale
> Solaris System Administrator
> Electrical and Computer Engineering Dept.
> Villanova University
> mailto: anany@ece.vill.edu
> tel: 610-519-5109
>
>