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Major update to the xzgrep and other scripts based on 

the latest versions found from gzip CVS repository.

configure will try to find a POSIX shell to be used by
the scripts. This should ease portability on systems
which have pre-POSIX /bin/sh.

xzgrep and xzdiff support .xz, .lzma, .gz, and .bz2 files.
xzmore and xzless support only .xz and .lzma files.

The name of the xz executable used in these scripts is
now correct even if --program-transform-name has been used.
This commit is contained in:
Lasse Collin 2009-07-05 22:25:17 +03:00
parent 25cc7a6e8c
commit 96e4b257e1
14 changed files with 766 additions and 369 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
configure.ac
View File

@ -411,6 +411,12 @@ AC_SUBST([STATIC_LDFLAGS])
# Checks for programs.
###############################################################################
echo
gl_POSIX_SHELL
if test -z "$POSIX_SHELL" ; then
AC_MSG_ERROR([No POSIX conforming shell (sh) was found.])
fi
echo
echo "Initializing Automake:"
@ -641,6 +647,10 @@ AM_CONDITIONAL([COND_GNULIB], test -n "$LIBOBJS")
# Add default AM_CFLAGS.
AC_SUBST([AM_CFLAGS])
# This is needed for src/scripts.
xz=`echo xz | sed "$program_transform_name"`
AC_SUBST([xz])
AC_CONFIG_FILES([
Doxyfile
Makefile
@ -653,6 +663,10 @@ AC_CONFIG_FILES([
src/xz/Makefile
src/xzdec/Makefile
src/scripts/Makefile
src/scripts/xzdiff
src/scripts/xzgrep
src/scripts/xzmore
src/scripts/xzless
tests/Makefile
debug/Makefile
])

63
m4/posix-shell.m4 Normal file
View File

@ -0,0 +1,63 @@
# Find a POSIX-conforming shell.
# Copyright (C) 2007-2008 Free Software Foundation, Inc.
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# Written by Paul Eggert.
# If a POSIX-conforming shell can be found, set POSIX_SHELL and
# PREFERABLY_POSIX_SHELL to it. If not, set POSIX_SHELL to the
# empty string and PREFERABLY_POSIX_SHELL to '/bin/sh'.
AC_DEFUN([gl_POSIX_SHELL],
[
AC_CACHE_CHECK([for a shell that conforms to POSIX], [gl_cv_posix_shell],
[gl_test_posix_shell_script='
func_return () {
(exit [$]1)
}
func_success () {
func_return 0
}
func_failure () {
func_return 1
}
func_ret_success () {
return 0
}
func_ret_failure () {
return 1
}
subshell_umask_sanity () {
(umask 22; (umask 0); test $(umask) -eq 22)
}
test "[$](echo foo)" = foo &&
func_success &&
! func_failure &&
func_ret_success &&
! func_ret_failure &&
(set x && func_ret_success y && test x = "[$]1") &&
subshell_umask_sanity
'
for gl_cv_posix_shell in \
"$CONFIG_SHELL" "$SHELL" /bin/sh /bin/bash /bin/ksh /bin/sh5 no; do
case $gl_cv_posix_shell in
/*)
"$gl_cv_posix_shell" -c "$gl_test_posix_shell_script" 2>/dev/null \
&& break;;
esac
done])
if test "$gl_cv_posix_shell" != no; then
POSIX_SHELL=$gl_cv_posix_shell
PREFERABLY_POSIX_SHELL=$POSIX_SHELL
else
POSIX_SHELL=
PREFERABLY_POSIX_SHELL=/bin/sh
fi
AC_SUBST([POSIX_SHELL])
AC_SUBST([PREFERABLY_POSIX_SHELL])
])

24
src/scripts/Makefile.am
View File

@ -5,8 +5,8 @@
## You can do whatever you want with this file.
##
dist_bin_SCRIPTS = xzdiff xzgrep xzmore
dist_man_MANS = xzdiff.1 xzgrep.1 xzmore.1
nodist_bin_SCRIPTS = xzdiff xzgrep xzmore xzless
dist_man_MANS = xzdiff.1 xzgrep.1 xzmore.1 xzless.1
install-exec-hook:
cd $(DESTDIR)$(bindir) && \
@ -22,9 +22,9 @@ install-exec-hook:
rm -f $$link && \
$(LN_S) $$target $$link; \
done && \
target=`echo xzmore | $(SED) '$(transform)'` && \
for name in xzless lzmore lzless; do \
link=`echo $$name | $(SED) '$(transform)'` && \
for name in xzmore xzless; do \
target=`echo $$name | $(SED) '$(transform)'` && \
link=`echo $$name | $(SED) 's/xz/lz/;$(transform)'` && \
rm -f $$link && \
$(LN_S) $$target $$link; \
done
@ -43,23 +43,23 @@ install-data-hook:
rm -f $$link.1 && \
$(LN_S) $$target.1 $$link.1; \
done && \
target=`echo xzmore | $(SED) '$(transform)'` && \
for name in xzless lzmore lzless; do \
link=`echo $$name | $(SED) '$(transform)'` && \
for name in xzmore xzless; do \
target=`echo $$name | $(SED) '$(transform)'` && \
link=`echo $$name | $(SED) 's/xz/lz/;$(transform)'` && \
rm -f $$link.1 && \
$(LN_S) $$target.1 $$link.1; \
done
uninstall-hook:
cd $(DESTDIR)$(bindir) && \
for name in xzcmp lzdiff lzcmp xzgrep xzegrep xzfgrep \
lzgrep lzegrep lzfgrep xzless lzmore lzless; do \
for name in xzcmp lzdiff lzcmp xzegrep xzfgrep \
lzgrep lzegrep lzfgrep lzmore lzless; do \
link=`echo $$name | $(SED) '$(transform)'` && \
rm -f $$link; \
done
cd $(DESTDIR)$(mandir)/man1 && \
for name in xzcmp lzdiff lzcmp xzgrep xzegrep xzfgrep \
lzgrep lzegrep lzfgrep xzless lzmore lzless; do \
for name in xzcmp lzdiff lzcmp xzegrep xzfgrep \
lzgrep lzegrep lzfgrep lzmore lzless; do \
link=`echo $$name | $(SED) '$(transform)'` && \
rm -f $$link.1; \
done

67
src/scripts/xzdiff
View File

@ -1,67 +0,0 @@
#!/bin/sh
# sh is buggy on RS/6000 AIX 3.2. Replace above line with #!/bin/ksh
# xzcmp and xzdiff are used to invoke the cmp or the diff pro-
# gram on compressed files. All options specified are passed
# directly to cmp or diff. If only 1 file is specified, then
# the files compared are file1 and an uncompressed file1.xz.
# If two files are specified, then they are uncompressed and
# fed to cmp or diff. The exit status from cmp or diff is
# preserved.
prog=`echo $0 | sed 's|.*/||'`
case "$prog" in
*cmp) comp=${CMP-cmp} ;;
*) comp=${DIFF-diff} ;;
esac
OPTIONS=
FILES=
for ARG
do
case "$ARG" in
-*) OPTIONS="$OPTIONS $ARG";;
*) if test -f "$ARG"; then
FILES="$FILES $ARG"
else
echo "${prog}: $ARG not found or not a regular file"
exit 2
fi ;;
esac
done
if test -z "$FILES"; then
echo "Usage: $prog [${comp}_options] file [file]"
exit 2
fi
set $FILES
if test $# -eq 1; then
FILE=`echo "$1" | sed 's/[-.][almtxz]*$//'`
xz -dc "$1" | $comp $OPTIONS - "$FILE"
elif test $# -eq 2; then
case "$1" in
*[-.]xz | *.txz | *[-.]lzma | *.tlz)
case "$2" in
*[-.]xz | *.txz | *[-.]lzma | *.tlz)
F=`echo "$2" | sed 's|.*/||;s|[-.][almtxz]*||'`
TF=`/usr/bin/mktemp ${TMPDIR:-/tmp}/"$F".XXXXXXXXXX` || exit 1
trap 'rm -f "$TF"; exit 2' EXIT HUP INT PIPE TERM
xz -dc -- "$2" > "$TF" || exit
xz -dc -- "$1" | $comp $OPTIONS - "$TF"
STAT="$?"
rm -f "$TF" || STAT=2
trap EXIT HUP INT PIPE TERM
exit $STAT;;
*) xz -dc -- "$1" | $comp $OPTIONS - "$2";;
esac;;
*) case "$2" in
*[-.]xz | *.txz | *[-.]lzma | *.tlz)
xz -dc -- "$2" | $comp $OPTIONS "$1" -;;
*) $comp $OPTIONS "$1" "$2";;
esac;;
esac
else
echo "Usage: $prog [${comp}_options] file [file]"
exit 2
fi

58
src/scripts/xzdiff.1
View File

@ -1,7 +1,14 @@
.\" Original file was take from gzip, thus this man page is under GNU GPLv2+.
.TH XZDIFF 1 "2009-04-13" "XZ Utils"
.\"
.\" Original zdiff.1 for gzip: Jean-loup Gailly
.\"
.\" Modifications for XZ Utils: Lasse Collin
.\" Andrew Dudman
.\"
.\" License: GNU GPLv2+
.\"
.TH XZDIFF 1 "2009-07-05" "Tukaani" "XZ Utils"
.SH NAME
xzcmp, xzdiff, lzcmp, lzdiff \- compare .xz and .lzma compressed files
xzcmp, xzdiff, lzcmp, lzdiff \- compare compressed files
.SH SYNOPSIS
.B xzcmp
.RI [ cmp_options "] " file1 " [" file2 ]
@ -18,41 +25,50 @@ xzcmp, xzdiff, lzcmp, lzdiff \- compare .xz and .lzma compressed files
.B xzcmp
and
.B xdiff
are used to invoke the
invoke
.BR cmp (1)
or the
or
.BR diff (1)
program on compressed files. All options specified are passed directly to
on files compressed with
.BR xz (1),
.BR lzma (1),
.BR gzip (1),
or
.BR bzip2 (1).
All options specified are passed directly to
.B cmp
or
.BR diff "."
If only 1 file is specified, then the files compared are
.BR diff .
If only one file is specified, then the files compared are
.I file1
(which must have .xz or .lzma suffix) and
(which must have a suffix of a supported compression format) and
.I file1
from which the .xz or .lzma suffix has been stripped.
from which the compression format suffix has been stripped.
If two files are specified, then they are uncompressed if necessary and fed to
.B cmp
.BR cmp (1)
or
.BR diff "."
.BR diff (1).
The exit status from
.B cmp
or
.B diff
is preserved.
.SH AUTHORS
This manual page was ripped from
.BR zdiff (1)
shipped in gzip package.
.PP
The names
.B lzcmp
and
.B lzdiff
are provided for backward compatibility with LZMA Utils.
.SH "SEE ALSO"
.BR cmp (1),
.BR diff (1),
.BR xzmore(1),
.BR xzgrep(1),
.BR xz (1)
.BR xz (1),
.BR gzip (1),
.BR bzip2 (1),
.BR zdiff (1)
.SH BUGS
Messages from the
.B cmp
.BR cmp (1)
or
.B diff
.BR diff (1)
programs refer to temporary filenames instead of those specified.

172
src/scripts/xzdiff.in Normal file
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@ -0,0 +1,172 @@
#!@POSIX_SHELL@
# Copyright (C) 1998, 2002, 2006, 2007 Free Software Foundation
# Copyright (C) 1993 Jean-loup Gailly
# Modified for XZ Utils by Andrew Dudman and Lasse Collin.
# 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.
#SET_PATH - This line is a placeholder to ease patching this script.
# Instead of unsetting XZ_OPT, just make sure that xz will use file format
# autodetection. This way memory usage limit and thread limit can be
# specified via XZ_OPT. With gzip and bzip2 it's OK to just unset the
# environment variables.
xz='@xz@ --format=auto'
unset GZIP BZIP BZIP2
case ${0##*/} in
*cmp*) prog=xzcmp; cmp=${CMP:-cmp};;
*) prog=xzdiff; cmp=${DIFF:-diff};;
esac
version="$prog (@PACKAGE_NAME@) @VERSION@"
usage="Usage: ${0##*/} [OPTION]... FILE1 [FILE2]
Compare FILE1 to FILE2, using their uncompressed contents if they are
compressed. If FILE2 is omitted, then the files compared are FILE1 and
FILE1 from which the compression format suffix has been stripped.
Do comparisons like '$cmp' does. OPTIONs are the same as for '$cmp'.
Report bugs to <@PACKAGE_BUGREPORT@>."
# sed script to escape all ' for the shell, and then (to handle trailing
# newlines correctly) turn trailing X on last line into '.
escape='
s/'\''/'\''\\'\'''\''/g
$s/X$/'\''/
'
while :; do
case $1 in
--h*) printf '%s\n' "$usage" || exit 2; exit;;
--v*) echo "$version" || exit 2; exit;;
--) shift; break;;
-*\'*) cmp="$cmp '"`printf '%sX\n' "$1" | sed "$escape"`;;
-?*) cmp="$cmp '$1'";;
*) break;;
esac
shift
done
cmp="$cmp --"
for file; do
test "X$file" = X- || <"$file" || exit 2
done
xz1=$xz
xz2=$xz
xz_status=0
exec 3>&1
if test $# -eq 1; then
case $1 in
*[-.]xz | *[-.]lzma | *.t[lx]z)
;;
*[-.]bz2 | *.tbz | *.tbz2)
xz1=$bzip2;;
*[-.][zZ] | *_z | *[-.]gz | *.t[ag]z)
xz1=$gzip;;
*)
echo >&2 "$0: $1: Unknown compressed file name suffix"
exit 2;;
esac
case $1 in
*[-.][zZ] | *_z | *[-.][gx]z | *[-.]bz2 | *[-.]lzma)
FILE=`expr "X$1" : 'X\(.*\)[-.][abglmxzZ2]*$'`
*.t[abglx]z)
FILE=`expr "X$1" : 'X\(.*[-.]t\)[abglx]z$'`ar
*.tbz2)
FILE=`expr "X$1" : 'X\(.*[-.]t\)bz2$'`ar
esac
xz_status=$(
exec 4>&1
($xz1 -cd -- "$1" 4>&-; echo $? >&4) 3>&- | eval "$cmp" - '"$FILE"' >&3
)
elif test $# -eq 2; then
case $1 in
*[-.]bz2 | *.tbz | *.tbz2) xz1=$bzip2;;
*[-.][zZ] | *_z | *[-.]gz | *.t[ag]z) xz1=$gzip;;
esac
case $2 in
*[-.]bz2 | *.tbz | *.tbz2) xz2=$bzip2;;
*[-.][zZ] | *_z | *[-.]gz | *.t[ag]z) xz2=$gzip;;
esac
case $1 in
*[-.][zZ] | *_z | *[-.][gx]z | *[-.]bz2 | *[-.]lzma | *.t[abglx]z | *.tbz2 | -)
case "$2" in
*[-.][zZ] | *_z | *[-.][gx]z | *[-.]bz2 | *[-.]lzma | *.t[abglx]z | *.tbz2 | -)
if test "$1$2" = --; then
xz_status=$(
exec 4>&1
($xz1 -cdfq - 4>&-; echo $? >&4) 3>&- |
eval "$cmp" - - >&3
)
elif # Reject Solaris 8's buggy /bin/bash 2.03.
echo X | (echo X | eval "$cmp" /dev/fd/5 - >/dev/null 2>&1) 5<&0; then
xz_status=$(
exec 4>&1
($xz1 -cdfq -- "$1" 4>&-; echo $? >&4) 3>&- |
( ($xz2 -cdfq -- "$2" 4>&-; echo $? >&4) 3>&- 5<&- </dev/null |
eval "$cmp" /dev/fd/5 -) 5<&0
)
case $xz_status in
*[1-9]*) xz_status=1;;
*) xz_status=0;;
esac
else
F=`expr "/$2" : '.*/\(.*\)[-.][ablmtxz2]*$'` || F=$prog
tmp=
trap '
test -n "$tmp" && rm -f "$tmp"
(exit 2); exit 2
' HUP INT PIPE TERM 0
tmp=`mktemp -t -- "$F.XXXXXX"` || exit 2
$xz2 -cdfq -- "$2" > "$tmp" || exit 2
xz_status=$(
exec 4>&1
($xz1 -cdfq -- "$1" 4>&-; echo $? >&4) 3>&- |
eval "$cmp" - '"$tmp"' >&3
)
cmp_status=$?
rm -f "$tmp" || xz_status=$?
trap - HUP INT PIPE TERM 0
(exit $cmp_status)
fi;;
*)
xz_status=$(
exec 4>&1
($xz1 -cdfq -- "$1" 4>&-; echo $? >&4) 3>&- |
eval "$cmp" - '"$2"' >&3
);;
esac;;
*)
case "$2" in
*[-.][zZ] | *_z | *[-.][gx]z | *[-.]bz2 | *[-.]lzma | *.t[abglx]z | *.tbz2 | -)
xz_status=$(
exec 4>&1
($xz2 -cdfq -- "$2" 4>&-; echo $? >&4) 3>&- |
eval "$cmp" '"$1"' - >&3
);;
*)
eval "$cmp" '"$1"' '"$2"';;
esac;;
esac
else
echo >&2 "$0: Invalid number of operands; try \`${0##*/} --help' for help"
exit 2
fi
cmp_status=$?
test "$xz_status" -eq 0 || exit 2
exit $cmp_status

123
src/scripts/xzgrep
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@ -1,123 +0,0 @@
#!/bin/sh
# xzgrep -- a wrapper around a grep program that decompresses files as needed
# Adapted to XZ Utils from gzip-1.3.3 + Red Hat's security patches
# Adapted from a version sent by Charles Levert <charles@comm.polymtl.ca>
# Copyright (C) 1998, 2001 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 2, 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., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA.
# Improve error handling, this is supported by bash but not all the other
# shells so we hide the possible error:
set -o pipefail > /dev/null 2> /dev/null
prog=`echo "$0" | sed 's|.*/||'`
case "$prog" in
*egrep) grep=${EGREP-egrep} ;;
*fgrep) grep=${FGREP-fgrep} ;;
*) grep=${GREP-grep} ;;
esac
pat=""
after_dash_dash=""
files_with_matches=0
files_without_matches=0
no_filename=0
with_filename=0
while test $# -ne 0; do
case "$after_dash_dash$1" in
--d* | --rec*) echo >&2 "$0: $1: option not supported"; exit 1;;
--files-with-*) files_with_matches=1;;
--files-witho*) files_without_matches=1;;
--no-f*) no_filename=1;;
--wi*) with_filename=1;;
--*) ;;
-*)
case "$1" in
-*[dr]*) echo >&2 "$0: $1: option not supported"; exit 1;;
esac
case "$1" in
-*H*) with_filename=1;;
esac
case "$1" in
-*h*) no_filename=1;;
esac
case "$1" in
-*L*) files_without_matches=1;;
esac
case "$1" in
-*l*) files_with_matches=1;;
esac;;
esac
case "$after_dash_dash$1" in
-[ef]) opt="$opt $1"; shift; pat="$1"
if test "$grep" = grep; then # grep is buggy with -e on SVR4
grep=egrep
fi;;
-[ABCdm])opt="$opt $1 $2"; shift;;
--) opt="$opt $1"; after_dash_dash=1;;
-*) opt="$opt $1";;
*) if test -z "$pat"; then
pat="$1"
else
break;
fi;;
esac
shift
done
if test -z "$pat"; then
echo "grep through .xz and .lzma files"
echo "usage: $prog [grep_options] pattern [files]"
exit 1
fi
if test $# -eq 0; then
xz -dc | $grep $opt "$pat"
exit $?
fi
res=0
trap break SIGPIPE
for i do
xz -dc -- "$i" |
if test $files_with_matches -eq 1; then
$grep $opt "$pat" > /dev/null && printf "%s\n" "$i"
elif test $files_without_matches -eq 1; then
$grep $opt "$pat" > /dev/null || printf "%s\n" "$i"
elif test $with_filename -eq 0 && { test $# -eq 1 || test $no_filename -eq 1; }; then
$grep $opt "$pat"
else
i=${i//\\/\\\\}
i=${i//|/\\|}
i=${i//&/\\&}
i=`printf "%s" "$i" | tr '\n' ' '`
if test $with_filename -eq 1; then
sed_script="s|^[^:]*:|${i}:|"
else
sed_script="s|^|${i}:|"
fi
$grep $opt "$pat" | sed "$sed_script"
fi
r=$?
test $res -lt $r && res=$r
# SIGPIPE + 128
test "$r" -eq 141 && exit $res
done
trap - SIGPIPE
exit $res

85
src/scripts/xzgrep.1
View File

@ -1,13 +1,20 @@
.\" Original file was take from gzip, thus this man page is under GNU GPLv2+.
.TH XZGREP 1 "2009-04-13" "XZ Utils"
.\"
.\" Original zgrep.1 for gzip: Jean-loup Gailly
.\" Charles Levert <charles@comm.polymtl.ca>
.\"
.\" Modifications for XZ Utils: Lasse Collin
.\"
.\" License: GNU GPLv2+
.\"
.TH XZGREP 1 "2009-07-05" "Tukaani" "XZ Utils"
.SH NAME
xzgrep \- search .xz and .lzma compressed files for a regular expression
xzgrep \- search compressed files for a regular expression
.SH SYNOPSIS
.B xzgrep
.RI [ grep_options ]
.RB [ \-e ]
.I pattern
.IR filename ".\|.\|."
.IR file ".\|.\|."
.br
.B xzegrep
.RB ...
@ -25,14 +32,28 @@ xzgrep \- search .xz and .lzma compressed files for a regular expression
.RB ...
.SH DESCRIPTION
.B xzgrep
is used to invoke the
invokes
.BR grep (1)
on .xz or .lzma compressed files. All options specified are passed directly to
.BR grep .
If no file is specified, then the standard input is decompressed
if necessary and fed to grep.
Otherwise the given files are uncompressed if necessary and fed to
.BR grep .
on
.I files
which may be either uncompressed or compressed with
.BR xz (1),
.BR lzma (1),
.BR gzip (1),
or
.BR bzip2 (1).
All options specified are passed directly to
.BR grep (1).
.PP
If no
.I file
is specified, then the standard input is decompressed if necessary and fed to
.BR grep (1).
When reading from standard input,
.BR gzip (1)
and
.BR bzip2 (1)
compressed files are not supported.
.PP
If
.B xzgrep
@ -41,37 +62,33 @@ is invoked as
or
.B xzfgrep
then
.B egrep
.BR egrep (1)
or
.B fgrep
.BR fgrep (1)
is used instead of
.B grep.
.BR grep (1).
The same applies to names
.BR lzgrep ,
.BR lzegrep ,
and
.BR lzfgrep ,
which are provided for backward compatibility with LZMA Utils.
If the GREP environment variable is set,
.B xzgrep
uses it as the
.B grep
program to be invoked. For example:
for sh: GREP=fgrep xzgrep string files
for csh: (setenv GREP fgrep; xzgrep string files)
.SH AUTHORS
Original
.BR zgrep (1)
manual page by Charles Levert <charles@comm.polymtl.ca>.
.PP
Minor modifications for XZ Utils by Lasse Collin
<lasse.collin@tukaani.org>.
.SH "SEE ALSO"
.SH ENVIRONMENT
.TP
.B GREP
If the
.B GREP
environment variable is set,
.B xzgrep
uses it instead of
.BR grep (1),
.BR egrep (1),
.BR fgrep (1),
.BR xzdiff (1),
.BR xzmore (1),
.BR xz (1)
or
.BR fgrep (1).
.SH "SEE ALSO"
.BR grep (1),
.BR xz (1),
.BR gzip (1),
.BR bzip2 (1),
.BR zgrep (1)

196
src/scripts/xzgrep.in Normal file
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@ -0,0 +1,196 @@
#!@POSIX_SHELL@
# xzgrep -- a wrapper around a grep program that decompresses files as needed
# Adapted from a version sent by Charles Levert <charles@comm.polymtl.ca>
# Copyright (C) 1998, 2001, 2002, 2006, 2007 Free Software Foundation
# Copyright (C) 1993 Jean-loup Gailly
# Modified for XZ Utils by Andrew Dudman and Lasse Collin.
# 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.
#SET_PATH - This line is a placeholder to ease patching this script.
# Instead of unsetting XZ_OPT, just make sure that xz will use file format
# autodetection. This way memory usage limit and thread limit can be
# specified via XZ_OPT. With gzip and bzip2 it's OK to just unset the
# environment variables.
xz='@xz@ --format=auto'
unset GZIP BZIP BZIP2
case ${0##/*} in
*egrep*) prog=xzegrep; grep=${GREP:-egrep};;
*fgrep*) prog=xzfgrep; grep=${GREP:-fgrep};;
*) prog=xzgrep; grep=${GREP:-grep};;
esac
version="$prog (@PACKAGE_NAME@) @VERSION@"
usage="Usage: ${0##/*} [OPTION]... [-e] PATTERN [FILE]...
Look for instances of PATTERN in the input FILEs, using their
uncompressed contents if they are compressed.
OPTIONs are the same as for '$grep'.
Report bugs to <@PACKAGE_BUGREPORT@>."
# sed script to escape all ' for the shell, and then (to handle trailing
# newlines correctly) turn trailing X on last line into '.
escape='
s/'\''/'\''\\'\'''\''/g
$s/X$/'\''/
'
operands=
have_pat=0
files_with_matches=0
files_without_matches=0
no_filename=0
with_filename=0
while test $# -ne 0; do
option=$1
shift
optarg=
case $option in
(-[0123456789abcdhHiIKLlnoqrRsTuUvVwxyzZ]?*)
arg2=-\'$(expr "X${option}X" : 'X-.[0-9]*\(.*\)' | sed "$escape")
eval "set -- $arg2 "'${1+"$@"}'
option=$(expr "X$option" : 'X\(-.[0-9]*\)');;
(--binary-*=* | --[lm]a*=* | --reg*=*)
;;
(-[ABCDefm] | --binary-* | --file | --[lm]a* | --reg*)
case ${1?"$option option requires an argument"} in
(*\'*)
optarg=" '"$(printf '%sX\n' "$1" | sed "$escape");;
(*)
optarg=" '$1'";;
esac
shift;;
(--)
break;;
(-?*)
;;
(*)
case $option in
(*\'*)
operands="$operands '"$(printf '%sX\n' "$option" | sed "$escape");;
(*)
operands="$operands '$option'";;
esac
${POSIXLY_CORRECT+break}
continue;;
esac
case $option in
(-[drRzZ] | --di* | --exc* | --inc* | --rec* | --nu*)
printf >&2 '%s: %s: Option not supported\n' "$0" "$option"
exit 2;;
(-[ef]* | --file | --file=* | --reg*)
have_pat=1;;
(--h | --he | --hel | --help)
echo "$usage" || exit 2
exit;;
(-H | --wi | --wit | --with | --with- | --with-f | --with-fi \
| --with-fil | --with-file | --with-filen | --with-filena | --with-filenam \
| --with-filename)
with_filename=1
continue;;
(-l | --files-with-*)
files_with_matches=1;;
(-L | --files-witho*)
files_without_matches=1;;
(--no-f*)
no_filename=1;;
(-V | --v | --ve | --ver | --vers | --versi | --versio | --version)
echo "$version" || exit 2
exit;;
esac
case $option in
(*\'?*)
option=\'$(expr "X${option}X" : 'X\(.*\)' | sed "$escape");;
(*)
option="'$option'";;
esac
grep="$grep $option$optarg"
done
eval "set -- $operands "'${1+"$@"}'
if test $have_pat -eq 0; then
case ${1?"Missing pattern; try \`${0##*/} --help' for help"} in
(*\'*)
grep="$grep -- '"$(printf '%sX\n' "$1" | sed "$escape");;
(*)
grep="$grep -- '$1'";;
esac
shift
fi
if test $# -eq 0; then
set -- -
fi
exec 3>&1
res=0
for i; do
case $i in
*[-.][zZ] | *_z | *[-.]gz | *.t[ag]z) uncompress="gzip -cdfq";;
*[-.]bz2 | *[-.]tbz | *.tbz2) uncompress="bzip2 -cdfq";;
*) uncompress="$xz -cdfq";;
esac
# Fail if xz or grep (or sed) fails.
xz_status=$(
exec 5>&1
(eval "$uncompress" -- "$i" 5>&-; echo $? >&5) 3>&- |
if test $files_with_matches -eq 1; then
eval "$grep" -q && { printf '%s\n' "$i" || exit 2; }
elif test $files_without_matches -eq 1; then
eval "$grep" -q || {
r=$?
if test $r -eq 1; then
printf '%s\n' "$i" || r=2
fi
exit $r
}
elif test $with_filename -eq 0 &&
{ test $# -eq 1 || test $no_filename -eq 1; }; then
eval "$grep"
else
case $i in
(*'
'* | *'&'* | *'\'* | *'|'*)
i=$(printf '%s\n' "$i" |
sed '
$!N
$s/[&\|]/\\&/g
$s/\n/\\n/g
');;
esac
sed_script="s|^|$i:|"
# Fail if grep or sed fails.
r=$(
exec 4>&1
(eval "$grep" 4>&-; echo $? >&4) 3>&- | sed "$sed_script" >&3 4>&-
) || r=2
exit $r
fi >&3 5>&-
)
r=$?
test "$xz_status" -eq 0 || test "$xz_status" -eq 2 || r=2
test $res -lt $r && res=$r
done
exit $res

66
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@ -0,0 +1,66 @@
.\"
.\" Authors: Andrew Dudman
.\" Lasse Collin
.\"
.\" This file has been put into the public domain.
.\" You can do whatever you want with this file.
.\"
.\" (Note that this file is not based on gzip's zless.1.)
.\"
.TH XZLESS 1 "2009-07-05" "Tukaani" "XZ Utils"
.SH NAME
xzless, lzless \- view xz or lzma compressed (text) files
.SH SYNOPSIS
.B xzless
.RI [ file ...]
.br
.B lzless
.RI [ file ...]
.SH DESCRIPTION
.B xzless
is a filter that displays pagefulls of uncompressed text from compressed
file(s) to a terminal. It works on files compressed with
.BR xz (1)
or
.BR lzma (1).
If no
.I files
are given,
.B xzless
reads from standard input.
.PP
.B xzless
uses
.BR less (1)
as its only pager. Unlike
.BR xzmore ,
the choice of pagers is not alterable by an environment variable.
Commands are based on both
.BR more (1)
and
.BR vi (1),
and allow back and forth movement and searching.
See the
.BR less (1)
manual for more information.
.PP
The command named
.B lzless
is provided for backward compatibility with LZMA Utils.
.SH ENVIRONMENT
.TP
.B LESSMETACHARS
A list of characters special to the shell. Set by
.B xzless
unless it is already set in the environment.
.TP
.B LESSOPEN
Set to a command line to invoke the
.BR xz (1)
decompressor for preprocessing the input files to
.BR less (1).
.SH "SEE ALSO"
.BR less (1),
.BR xz (1),
.BR xzmore (1),
.BR zless (1)

51
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@ -0,0 +1,51 @@
#!@POSIX_SHELL@
# Copyright (C) 1998, 2002, 2006, 2007 Free Software Foundation
# Modified for XZ Utils by Andrew Dudman and Lasse Collin.
# 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.
#SET_PATH - This line is a placeholder to ease patching this script.
# Instead of unsetting XZ_OPT, just make sure that xz will use file format
# autodetection. This way memory usage limit and thread limit can be
# specified via XZ_OPT.
xz='@xz@ --format=auto'
version='xzless (@PACKAGE_NAME@) @VERSION@'
usage="Usage: ${0##*/} [OPTION]... [FILE]...
Like 'less', but operate on the uncompressed contents of xz compressed FILEs.
Options are the same as for 'less'.
Report bugs to <@PACKAGE_BUGREPORT@>."
case $1 in
--help) echo "$usage" || exit 2; exit;;
--version) echo "$version" || exit 2; exit;;
esac
if test "${LESSMETACHARS+set}" != set; then
# Work around a bug in less 394 and earlier;
# it mishandles the metacharacters '$%=~'.
space=' '
tab=' '
nl='
'
LESSMETACHARS="$space$tab$nl'"';*?"()<>[|&^`#\$%=~'
fi
LESSOPEN="|$xz -cdfq -- %s"
export LESSMETACHARS LESSOPEN
exec less "$@"

74
src/scripts/xzmore
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@ -1,74 +0,0 @@
#!/bin/sh
# Copyright (C) 2001 Free Software Foundation
# Copyright (C) 1992, 1993 Jean-loup Gailly
# Adapted to XZ Utils from gzip-1.3.3 + Red Hat's security patches
# 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, 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., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA.
case "$0" in
*less) PAGER=less ;;
esac
if test "`echo -n a`" = "-n a"; then
# looks like a SysV system:
n1=''; n2='\c'
else
n1='-n'; n2=''
fi
oldtty=`stty -g 2>/dev/null`
if stty -cbreak 2>/dev/null; then
cb='cbreak'; ncb='-cbreak'
else
# 'stty min 1' resets eof to ^a on both SunOS and SysV!
cb='min 1 -icanon'; ncb='icanon eof ^d'
fi
if test $? -eq 0 -a -n "$oldtty"; then
trap 'stty $oldtty 2>/dev/null; exit' 0 2 3 5 10 13 15
else
trap 'stty $ncb echo 2>/dev/null; exit' 0 2 3 5 10 13 15
fi
if test $# = 0; then
if test -t 0; then
echo usage: zmore files...
else
xz -dc | eval ${PAGER-more}
fi
else
FIRST=1
for FILE
do
< "$FILE" || continue
if test $FIRST -eq 0; then
echo $n1 "--More--(Next file: $FILE)$n2"
stty $cb -echo 2>/dev/null
ANS=`dd bs=1 count=1 2>/dev/null`
stty $ncb echo 2>/dev/null
echo " "
if test "$ANS" = 'e' -o "$ANS" = 'q'; then
exit
fi
fi
if test "$ANS" != 's'; then
echo "------> $FILE <------"
xz -dc -- "$FILE" | eval ${PAGER-more}
fi
if test -t; then
FIRST=0
fi
done
fi

64
src/scripts/xzmore.1
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@ -1,66 +1,54 @@
.\" Original file was take from gzip, thus this man page is under GNU GPLv2+.
.TH XZMORE 1 "2009-04-13" "XZ Utils"
.\"
.\" Original zdiff.1 for gzip: Jean-loup Gailly
.\" Modifications for XZ Utils: Lasse Collin
.\"
.\" License: GNU GPLv2+
.\"
.TH XZMORE 1 "2009-07-05" "Tukaani" "XZ Utils"
.SH NAME
xzmore, xzless, lzmore, lzless \- view .xz or .lzma compressed (text) files
xzmore, lzmore \- view xz or lzma compressed (text) files
.SH SYNOPSIS
.B xzmore
.RI [ "filename ..." ]
.br
.B xzless
.RI [ "filename ..." ]
.br
.B lzmore
.RI [ "filename ..." ]
.br
.B lzless
.RI [ "filename ..." ]
.SH DESCRIPTION
.B xzmore
is a filter which allows examination of .xz or .lzma compressed text files
one screenful at a time on a soft-copy terminal.
is a filter which allows examination of
.BR xz (1)
or
.BR lzma (1)
compressed text files one screenful at a time on a soft-copy terminal.
.PP
To use a pager other than the default
.B more,
set environment variable
.B PAGER
to the name of the desired program, such as
.BR less .
If
.B xzmore
is called as
.B xzless
then
.B less
is used as the
.BR PAGER .
The names
to the name of the desired program.
The name
.B lzmore
and
.B lzless
are provided for backward compatibility with LZMA Utils.
is provided for backward compatibility with LZMA Utils.
.TP
.BR e " or " q
When the prompt --More--(Next file:
.IR file )
is printed, this command causes xzmore to exit.
is printed, this command causes
.B xzmore
to exit.
.TP
.B s
When the prompt --More--(Next file:
.IR file )
is printed, this command causes zmore to skip the next file and continue.
is printed, this command causes
.B xzmore
to skip the next file and continue.
.PP
For list of keyboard commands supported while actually viewing the
content of a file, refer to manual of the pager you use, usually
.BR more (1)
or
.BR less (1).
.SH AUTHORS
This manual page was ripped from
.BR zmore (1)
shipped in gzip package.
.BR more (1).
.SH "SEE ALSO"
.BR more (1),
.BR zmore (1),
.BR xzdiff (1),
.BR xzgrep (1),
.BR xz (1)
.BR xz (1),
.BR xzless (1),
.BR zmore (1)

78
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#!@POSIX_SHELL@
# Copyright (C) 2001, 2002, 2007 Free Software Foundation
# Copyright (C) 1992, 1993 Jean-loup Gailly
# Modified for XZ Utils by Andrew Dudman and Lasse Collin.
# 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.
#SET_PATH - This line is a placeholder to ease patching this script.
# Instead of unsetting XZ_OPT, just make sure that xz will use file format
# autodetection. This way memory usage limit and thread limit can be
# specified via XZ_OPT.
xz='@xz@ --format=auto'
version='xzmore (@PACKAGE_NAME@) @VERSION@'
usage="Usage: ${0##*/} [OPTION]... [FILE]...
Like 'more', but operate on the uncompressed contents of xz compressed FILEs.
Report bugs to <@PACKAGE_BUGREPORT@>."
case $1 in
--help) echo "$usage" || exit 2; exit;;
--version) echo "$version" || exit 2; exit;;
esac
oldtty=`stty -g 2>/dev/null`
if stty -cbreak 2>/dev/null; then
cb='cbreak'; ncb='-cbreak'
else
# 'stty min 1' resets eof to ^a on both SunOS and SysV!
cb='min 1 -icanon'; ncb='icanon eof ^d'
fi
if test $? -eq 0 && test -n "$oldtty"; then
trap 'stty $oldtty 2>/dev/null; exit' 0 2 3 5 10 13 15
else
trap 'stty $ncb echo 2>/dev/null; exit' 0 2 3 5 10 13 15
fi
if test $# = 0; then
if test -t 0; then
echo "$usage"; exit 1
else
$xz -cdfq | eval "${PAGER:-more}"
fi
else
FIRST=1
for FILE; do
< "$FILE" || continue
if test $FIRST -eq 0; then
printf "%s--More--(Next file: %s)" "" "$FILE"
stty $cb -echo 2>/dev/null
ANS=`dd bs=1 count=1 2>/dev/null`
stty $ncb echo 2>/dev/null
echo " "
case "$ANS" in
[eq]) exit;;
esac
fi
if test "$ANS" != 's'; then
echo "------> $FILE <------"
$xz -cdfq -- "$FILE" | eval "${PAGER:-more}"
fi
if test -t 1; then
FIRST=0
fi
done
fi