tests/du/hard-link

   1 #!/bin/sh
   2 # Ensure that hard-linked files are counted (and listed) only once.
   3 # Likewise for excluded directories.
   4 # Ensure that hard links _are_ listed twice when using --count-links.
   5
   6 # Copyright (C) 2003, 2006-2008 Free Software Foundation, Inc.
   7
   8 # This program is free software: you can redistribute it and/or modify
   9 # it under the terms of the GNU General Public License as published by
  10 # the Free Software Foundation, either version 3 of the License, or
  11 # (at your option) any later version.
  12
  13 # This program is distributed in the hope that it will be useful,
  14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 # GNU General Public License for more details.
  17
  18 # You should have received a copy of the GNU General Public License
  19 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20
  21 if test "$VERBOSE" = yes; then
  22   set -x
  23   du --version
  24 fi
  25
  26 . $srcdir/test-lib.sh
  27
  28 mkdir -p dir/sub
  29 ( cd dir && { echo non-empty > f1; ln f1 f2; echo non-empty > sub/F; } )
  30
  31 fail=0
  32
  33 # Note that for this first test, we transform f1 or f2
  34 # (whichever name we find first) to f_.  That is necessary because,
  35 # depending on the type of file system, du could encounter either of those
  36 # two hard-linked files first, thus listing that one and not the other.
  37 du -a --exclude=sub dir \
  38   | sed 's/^[0-9][0-9]* //' | sed 's/f[12]/f_/' > out || fail=1
  39 echo === >> out
  40 du -a --exclude=sub --count-links dir \
  41   | sed 's/^[0-9][0-9]* //' | sort -r >> out || fail=1
  42 cat <<\EOF > exp
  43 dir/f_
  44 dir
  45 ===
  46 dir/f2
  47 dir/f1
  48 dir
  49 EOF
  50
  51 compare out exp || fail=1
  52
  53 Exit $fail