mirror of
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110 lines
2.8 KiB
Bash
Executable File
110 lines
2.8 KiB
Bash
Executable File
#!/bin/sh
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# Compare actual numbers from du, assuming block size matches mine.
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# Copyright (C) 2003, 2006 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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# 02110-1301, USA.
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if test "$VERBOSE" = yes; then
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set -x
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du --version
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fi
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# DU_BLOCK_SIZE could cause problems
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. $srcdir/../envvar-check
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. $srcdir/../lang-default
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pwd=`pwd`
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t0=`echo "$0"|sed 's,.*/,,'`.tmp; tmp=$t0/$$
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trap 'status=$?; cd "$pwd" && chmod -R u+rwx $t0 && rm -rf $t0 && exit $status' 0
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trap '(exit $?); exit $?' 1 2 13 15
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framework_failure=0
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mkdir -p $tmp || framework_failure=1
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cd $tmp || framework_failure=1
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mkdir -p a/b d d/sub || framework_failure=1
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# Ensure that these files contain more than 64 bytes, so that we don't
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# immediately disqualify file systems (e.g., NetApp) on which smaller
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# files take up zero disk blocks.
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printf '%*s' 257 make-sure-the-file-is-non-empty > a/b/F || framework_failure=1
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printf %4096s x > d/1
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cp d/1 d/sub/2
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if test $framework_failure = 1; then
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echo "$0: failure in testing framework" 1>&2
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(exit 1); exit 1
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fi
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fail=0
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B=`stat --format=%B a/b/F`
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du --block-size=$B -a a > out || fail=1
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echo === >> out
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du --block-size=$B -a -S a >> out || fail=1
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echo === >> out
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du --block-size=$B -s a >> out || fail=1
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f=`stat --format=%b a/b/F`
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b=`stat --format=%b a/b`
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a=`stat --format=%b a`
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bf=`expr $b + $f`
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tot=`expr $bf + $a`
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cat <<EOF | sed 's/ *#.*//' > exp
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$f a/b/F
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$bf a/b
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$tot a
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===
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$f a/b/F # size of file, a/b/F
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$bf a/b # size of dir entry, a/b, + size of file, a/b/F
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$a a # size of dir entry, a
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===
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$tot a
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EOF
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cmp out exp || fail=1
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test $fail = 1 && diff -u out exp 2> /dev/null
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rm -f out exp
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du --block-size=$B -a d | sort -r -k2,2 > out || fail=1
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echo === >> out
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du --block-size=$B -S d | sort -r -k2,2 >> out || fail=1
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t2=`stat --format=%b d/sub/2`
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ts=`stat --format=%b d/sub`
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t1=`stat --format=%b d/1`
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td=`stat --format=%b d`
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tot=`expr $t1 + $t2 + $ts + $td`
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d1=`expr $td + $t1`
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s2=`expr $ts + $t2`
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cat <<EOF | sed 's/ *#.*//' > exp
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$t2 d/sub/2
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$s2 d/sub
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$t1 d/1
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$tot d
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===
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$s2 d/sub
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$d1 d # d + d/1; don't count the dir. entry for d/sub
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EOF
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cmp out exp || fail=1
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test $fail = 1 && diff out exp 2> /dev/null
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(exit $fail); exit $fail
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