91 lines
2.5 KiB
Bash
Executable file
91 lines
2.5 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) 2003-2025 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 3 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, see <https://www.gnu.org/licenses/>.
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. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
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print_ver_ du
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mkdir -p a/b d d/sub || framework_failure_
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# Ensure that these files contain more than 64 bytes, so that we don't
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# immediately disqualify file systems (e.g., NetApp) on which smaller
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# files take up zero file system blocks.
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printf '%*s' 257 make-sure-the-file-is-non-empty > a/b/F || framework_failure_
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printf %4096s x > d/1
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cp d/1 d/sub/2
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B=$(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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compare exp out || fail=1
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# Perform this test only if "." is on a local file system.
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# Otherwise, it would fail e.g., on an NFS-mounted Solaris ZFS file system.
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# Also skip local ZFS as that was seen to fail intermittently
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# (perhaps due to async compression affecting allocations)
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if is_local_dir_ . && ! df -T -t zfs .; then
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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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compare exp out || fail=1
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fi
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Exit $fail
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