mirror of
git://git.sv.gnu.org/coreutils.git
synced 2026-03-01 10:33:30 +02:00
b35bd50ce6
when the file's apparent size is not a multiple of its block size. * src/copy.c (copy_reg): Don't write a NUL before calling ftruncate. For some file sizes, writing that single byte would unnecessarily waste a few file blocks. That write may have been necessary in the early days of Linux, but now, removing it should be safe. Based on a patch by Alan Curry: <http://bugs.debian.org/370792> * tests/cp/sparse: New test for the above. * tests/cp/Makefile.am (TESTS): Add sparse. * tests/sparse-file: New file, essence factored out of... * tests/du/8gb: ... here. Use the new script.
58 lines
1.7 KiB
Bash
Executable File
58 lines
1.7 KiB
Bash
Executable File
#!/bin/sh
|
|
# Test cp --sparse=always
|
|
|
|
# Copyright (C) 2006 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 2 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, write to the Free Software
|
|
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
|
# 02110-1301, USA.
|
|
|
|
if test "$VERBOSE" = yes; then
|
|
set -x
|
|
cp --version
|
|
fi
|
|
|
|
. $srcdir/../envvar-check
|
|
. $srcdir/../sparse-file
|
|
|
|
pwd=`pwd`
|
|
t0=`echo "$0"|sed 's,.*/,,'`.tmp; tmp=$t0/$$
|
|
trap 'status=$?; cd $pwd; chmod -R u+rwx $t0; rm -rf $t0 && exit $status' 0
|
|
trap '(exit $?); exit $?' 1 2 13 15
|
|
|
|
framework_failure=0
|
|
mkdir -p $tmp || framework_failure=1
|
|
cd $tmp || framework_failure=1
|
|
|
|
# Create a sparse file.
|
|
# It has to be at least 128K in order to be sparse on some systems.
|
|
# Make its size one larger than 128K, in order to tickle the
|
|
# bug in coreutils-6.0.
|
|
size=`expr 128 \* 1024 + 1`
|
|
dd bs=1 seek=$size of=sparse < /dev/null 2> /dev/null || framework_failure=1
|
|
|
|
if test $framework_failure = 1; then
|
|
echo "$0: failure in testing framework" 1>&2
|
|
(exit 1); exit 1
|
|
fi
|
|
|
|
fail=0
|
|
|
|
cp --sparse=always sparse copy || fail=1
|
|
|
|
# Ensure that the copy has the same block count as the original.
|
|
test `stat --printf %b sparse` = `stat --printf %b copy` || fail=1
|
|
|
|
(exit $fail); exit $fail
|