77 lines
2.6 KiB
Bash
Executable file
77 lines
2.6 KiB
Bash
Executable file
#!/bin/sh
|
|
# Test cp --sparse=always
|
|
|
|
# Copyright (C) 2006-2025 Free Software Foundation, Inc.
|
|
|
|
# This program is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
|
|
. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
|
|
print_ver_ cp
|
|
require_sparse_support_
|
|
|
|
# Create a sparse file.
|
|
# It has to be at least 128K in order to be sparse on some systems.
|
|
# Make its size one larger than 128K, in order to tickle the
|
|
# bug in coreutils-6.0.
|
|
size=$(expr 128 \* 1024 + 1)
|
|
dd bs=1 seek=$size of=sparse < /dev/null 2> /dev/null || framework_failure_
|
|
|
|
# Avoid reflinking. We want to test hole navigation here.
|
|
cp_no_reflink() {
|
|
cp --reflink=never "$@"
|
|
}
|
|
|
|
cp_no_reflink --sparse=always sparse copy || fail=1
|
|
|
|
# Ensure that the copy has the same block count as the original.
|
|
test $(stat --printf %b copy) -le $(stat --printf %b sparse) || fail=1
|
|
|
|
# Ensure that --sparse={always,never} with --reflink fail.
|
|
returns_ 1 cp --sparse=always --reflink sparse copy || fail=1
|
|
returns_ 1 cp --sparse=never --reflink sparse copy || fail=1
|
|
|
|
|
|
# Ensure we handle sparse/non-sparse transitions correctly
|
|
maxn=128 # how many $hole_size chunks per file
|
|
hole_size=$(stat -c %o copy)
|
|
dd if=/dev/zero bs=$hole_size count=$maxn of=zeros || framework_failure_
|
|
tr '\0' 'U' < zeros > nonzero || framework_failure_
|
|
|
|
for pattern in 1 0; do
|
|
test "$pattern" = 1 && pattern="$(printf '%s\n%s' nonzero zeros)"
|
|
test "$pattern" = 0 && pattern="$(printf '%s\n%s' zeros nonzero)"
|
|
|
|
for n in 1 2 4 11 32 $maxn; do
|
|
parts=$(expr $maxn / $n)
|
|
|
|
rm -f file.in
|
|
|
|
# Generate non sparse file for copying with alternating
|
|
# hole/data patterns of size n * $hole_size
|
|
for i in $(yes "$pattern" | head -n$parts); do
|
|
dd iflag=fullblock if=$i of=file.in conv=notrunc oflag=append \
|
|
bs=$hole_size count=$n status=none || framework_failure_
|
|
done
|
|
|
|
cp_no_reflink --sparse=always file.in sparse.out || fail=1 # non sparse in
|
|
cp_no_reflink --sparse=always sparse.out sparse.out2 || fail=1 # sparse in
|
|
|
|
cmp file.in sparse.out || fail=1
|
|
cmp file.in sparse.out2 || fail=1
|
|
|
|
ls -lsh file.in sparse.*
|
|
done
|
|
done
|
|
|
|
Exit $fail
|