[Bug 668782] Re: shopt -s nullglob breaks bash_completion

[C. Alex. North-Keys]

This is generally a collection of multiple bugs in bash-scripted
completion functions that aren't correctly saving and restore the
current glob setting to allow setting old-style globbing temporarily for
their own use, much as IFS is typically handled.   Disabling nullglob in
a user .bashrc is nothing more than a workaround for that naive code
written by others.

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Title:
  shopt -s nullglob breaks bash_completion

Status in bash package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: bash

  Bash seems to be unable to auto-complete stuff if option nullglob is
  set. See:

  luca at manuk:~$ shopt -s nullglob 
  luca at manuk:~$ ls /
  Display all 147 possibilities? (y or n)
  luca at manuk:~$ ls /bin
  Display all 147 possibilities? (y or n)
  luca at manuk:~$ ls /var
  Display all 147 possibilities? (y or n)
  luca at manuk:~$ ls /var # ENTER (no completion)
  backups/  cache/  games/  lib/  local/  lock/  log/  mail/  opt/  run/  spool/  tmp/  www/
  luca at manuk:~$ shopt -u nullglob 
  luca at manuk:~$ ls /
  bin/            dev/            initrd.img      media/          root/           .suspended      var/
  boot/           etc/            initrd.img.old  mnt/            sbin/           sys/            vmlinuz
  .cache/         home/           lib/            opt/            selinux/        tmp/            vmlinuz.old
  cdrom/          initrd/         lost+found/     proc/           srv/            usr/            
  luca at manuk:~$ ls /var/
  backups/ cache/   games/   lib/     local/   lock/    log/     mail/    opt/     run/     spool/   tmp/     www/     
  luca at manuk:~$ ls /var/l
  lib/   local/ lock/  log/   

  This happened after I upgraded from Ubuntu 10.04 to 10.10.

  ProblemType: Bug
  DistroRelease: Ubuntu 10.10
  Package: bash 4.1-2ubuntu4
  ProcVersionSignature: Ubuntu 2.6.35-23.36-generic 2.6.35.7
  Uname: Linux 2.6.35-23-generic i686
  Architecture: i386
  Date: Sat Oct 30 12:37:19 2010
  ProcEnviron:
   LANGUAGE=es_AR:es
   PATH=(custom, user)
   LANG=es_AR.utf8
   SHELL=/bin/bash
  SourcePackage: bash

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