-:
#!/bin/sh
-PATH="BINDIR:$PATH"; export PATH
+# Copyright (C) 1998, 2002, 2004, 2007, 2010 Free Software Foundation
+# Copyright (C) 1993 Jean-loup Gailly
+
+# 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, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+bindir=@bindir@
+case $1 in
+--__bindir) bindir=${2?}; shift; shift;;
+esac
+PATH=$bindir:$PATH; export PATH
+
+version="znew (gzip) @VERSION@
+Copyright (C) 2010-2012 Free Software Foundation, Inc.
+This is free software. You may redistribute copies of it under the terms of
+the GNU General Public License <http://www.gnu.org/licenses/gpl.html>.
+There is NO WARRANTY, to the extent permitted by law.
+
+Written by Jean-loup Gailly."
+
+usage="Usage: $0 [OPTION]... [FILE]...
+Recompress files from .Z (compress) format to .gz (gzip) format.
+
+Options:
+
+ -f Force recompression even if a .gz file already exists.
+ -t Test the new files before deleting originals.
+ -v Verbose; display name and statistics for each file compressed.
+ -9 Use the slowest compression method (optimal compression).
+ -P Use pipes for the conversion to reduce disk space usage.
+ -K Keep a .Z file when it is smaller than the .gz file; implies -t.
+ --help display this help and exit
+ --version output version information and exit
+
+Report bugs to <bug-gzip@gnu.org>."
+
check=0
pipe=0
opt=
# block is the disk block size (best guess, need not be exact)
warn="(does not preserve modes and timestamp)"
-tmp=/tmp/zfoo.$$
+tmp=${TMPDIR-/tmp}/zfoo.$$
set -C
-echo hi > $tmp.1
-echo hi > $tmp.2
-if test -z "`(${CPMOD-cpmod} $tmp.1 $tmp.2) 2>&1`"; then
+echo hi > $tmp || exit
+if test -z "`(${CPMOD-cpmod} $tmp $tmp) 2>&1`"; then
cpmod=${CPMOD-cpmod}
warn=""
fi
-if test -z "$cpmod" && ${TOUCH-touch} -r $tmp.1 $tmp.2 2>/dev/null; then
+if test -z "$cpmod" && ${TOUCH-touch} -r $tmp $tmp 2>/dev/null; then
cpmod="${TOUCH-touch}"
cpmodarg="-r"
warn="(does not preserve file modes)"
fi
# check if GZIP env. variable uses -S or --suffix
-gzip -q $tmp.1
-ext=`echo $tmp.1* | sed "s|$tmp.1||"`
-rm -f $tmp.[12]*
+gzip -q $tmp
+ext=`echo $tmp* | sed "s|$tmp||"`
+rm -f $tmp*
if test -z "$ext"; then
echo znew: error determining gzip extension
exit 1
for arg
do
case "$arg" in
+ --help) exec echo "$usage";;
+ --version) exec echo "$version";;
-*) opt="$opt $arg"; shift;;
*) break;;
esac
done
if test $# -eq 0; then
- echo "recompress .Z files into $ext (gzip) files"
- echo usage: `echo $0 | sed 's,^.*/,,'` "[-tv9KP]" file.Z...
- echo " -t tests the new files before deleting originals"
- echo " -v be verbose"
- echo " -9 use the slowest compression method (optimal compression)"
- echo " -K keep a .Z file when it is smaller than the $ext file"
- echo " -P use pipes for the conversion $warn"
+ echo >&2 "$0: invalid number of operands; try \`$0 --help' for help"
exit 1
fi
*t*) check=1; opt=`echo "$opt" | sed 's/t//g'`
esac
case "$opt" in
- *K*) keep=1; opt=`echo "$opt" | sed 's/K//g'`
+ *K*) keep=1; check=1; opt=`echo "$opt" | sed 's/K//g'`
esac
case "$opt" in
*P*) pipe=1; opt=`echo "$opt" | sed 's/P//g'`
else
if test $check -eq 1; then
if cp -p "$n.Z" "$n.$$" 2> /dev/null || cp "$n.Z" "$n.$$"; then
- :
+ :
else
- echo cannot backup "$n.Z"
+ echo cannot backup "$n.Z"
res=1; continue
fi
fi
:
else
if test $check -eq 1; then
- mv "$n.$$" "$n.Z" && rm -f "$n"
+ mv "$n.$$" "$n.Z" && rm -f "$n"
echo error while recompressing $n
else
- # compress $n (might be dangerous if disk full)
+ # compress $n (might be dangerous if disk full)
echo error while recompressing $n, left uncompressed
fi
res=1; continue
fi
fi
test $keep -eq 1 && new=`wc -c < "$n$ext"`
- if test $keep -eq 1 -a `expr \( $old + $block - 1 \) / $block` -lt \
- `expr \( $new + $block - 1 \) / $block`; then
+ if test $keep -eq 1 && test `expr \( $old + $block - 1 \) / $block` -lt \
+ `expr \( $new + $block - 1 \) / $block`; then
if test $pipe -eq 1; then
rm -f "$n$ext"
- elif test $check -eq 1; then
- mv "$n.$$" "$n.Z" && rm -f "$n$ext"
else
- gzip -d "$n$ext" && compress "$n" && rm -f "$n$ext"
+ mv "$n.$$" "$n.Z" && rm -f "$n$ext"
fi
echo "$n.Z smaller than $n$ext -- unchanged"
projects / debian / gzip / blobdiff