diff options
Diffstat (limited to 'src/scripts')
| -rw-r--r-- | src/scripts/Makefile.am | 89 | ||||
| -rw-r--r-- | src/scripts/Makefile.in | 700 | ||||
| -rw-r--r-- | src/scripts/xzdiff.1 | 79 | ||||
| -rw-r--r-- | src/scripts/xzdiff.in | 215 | ||||
| -rw-r--r-- | src/scripts/xzgrep.1 | 113 | ||||
| -rw-r--r-- | src/scripts/xzgrep.in | 298 | ||||
| -rw-r--r-- | src/scripts/xzless.1 | 69 | ||||
| -rw-r--r-- | src/scripts/xzless.in | 59 | ||||
| -rw-r--r-- | src/scripts/xzmore.1 | 55 | ||||
| -rw-r--r-- | src/scripts/xzmore.in | 79 |
10 files changed, 1756 insertions, 0 deletions
diff --git a/src/scripts/Makefile.am b/src/scripts/Makefile.am new file mode 100644 index 0000000..fe5742d --- /dev/null +++ b/src/scripts/Makefile.am @@ -0,0 +1,89 @@ +## +## Author: Lasse Collin +## +## This file has been put into the public domain. +## You can do whatever you want with this file. +## + +nodist_bin_SCRIPTS = xzdiff xzgrep xzmore xzless +dist_man_MANS = xzdiff.1 xzgrep.1 xzmore.1 xzless.1 + +links = \ + xzdiff-xzcmp \ + xzgrep-xzegrep \ + xzgrep-xzfgrep + +if COND_LZMALINKS +links += \ + xzdiff-lzdiff \ + xzdiff-lzcmp \ + xzgrep-lzgrep \ + xzgrep-lzegrep \ + xzgrep-lzfgrep \ + xzmore-lzmore \ + xzless-lzless +endif + +install-exec-hook: + cd "$(DESTDIR)$(bindir)" && \ + for pair in $(links); do \ + target=`echo $$pair | sed 's/-.*$$//' | sed '$(transform)'` && \ + link=`echo $$pair | sed 's/^.*-//' | sed '$(transform)'` && \ + rm -f "$$link" && \ + $(LN_S) "$$target" "$$link"; \ + done + +# The installation of translated man pages abuses Automake internals +# by calling "install-man" with redefined dist_man_MANS and man_MANS. +# If this breaks some day, don't blame Automake developers. +install-data-hook: + languages= ; \ + if test "$(USE_NLS)" = yes && test -d "$(top_srcdir)/po4a/man"; then \ + languages=`ls "$(top_srcdir)/po4a/man"`; \ + fi; \ + for lang in $$languages; do \ + mans= ; \ + for man in $(dist_man_MANS); do \ + man="$(top_srcdir)/po4a/man/$$lang/$$man" ; \ + if test -f "$$man"; then \ + mans="$$mans $$man"; \ + fi; \ + done; \ + $(MAKE) dist_man_MANS="$$mans" man_MANS= \ + mandir="$(mandir)/$$lang" install-man; \ + done; \ + for lang in . $$languages; do \ + for pair in $(links); do \ + target=`echo $$pair | sed 's/-.*$$//' \ + | sed '$(transform)'` && \ + link=`echo $$pair | sed 's/^.*-//' \ + | sed '$(transform)'` && \ + man1dir="$(DESTDIR)$(mandir)/$$lang/man1" && \ + if test -f "$$man1dir/$$target.1"; then ( \ + cd "$$man1dir" && \ + rm -f "$$link.1" && \ + $(LN_S) "$$target.1" "$$link.1" \ + ); fi; \ + done; \ + done + 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+.NOEXPORT: diff --git a/src/scripts/xzdiff.1 b/src/scripts/xzdiff.1 new file mode 100644 index 0000000..24fed68 --- /dev/null +++ b/src/scripts/xzdiff.1 @@ -0,0 +1,79 @@ +.\" +.\" Original zdiff.1 for gzip: Jean-loup Gailly +.\" +.\" Modifications for XZ Utils: Lasse Collin +.\" Andrew Dudman +.\" +.\" License: GNU GPLv2+ +.\" +.TH XZDIFF 1 "2021-06-04" "Tukaani" "XZ Utils" +.SH NAME +xzcmp, xzdiff, lzcmp, lzdiff \- compare compressed files +.SH SYNOPSIS +.B xzcmp +.RI [ cmp_options "] " file1 " [" file2 ] +.br +.B xzdiff +.RI [ diff_options "] " file1 " [" file2 ] +.br +.B lzcmp +.RI [ cmp_options "] " file1 " [" file2 ] +.br +.B lzdiff +.RI [ diff_options "] " file1 " [" file2 ] +.SH DESCRIPTION +.B xzcmp +and +.B xzdiff +invoke +.BR cmp (1) +or +.BR diff (1) +on files compressed with +.BR xz (1), +.BR lzma (1), +.BR gzip (1), +.BR bzip2 (1), +.BR lzop (1), +or +.BR zstd (1). +All options specified are passed directly to +.BR cmp (1) +or +.BR diff (1). +If only one file is specified, then the files compared are +.I file1 +(which must have a suffix of a supported compression format) and +.I file1 +from which the compression format suffix has been stripped. +If two files are specified, +then they are uncompressed if necessary and fed to +.BR cmp (1) +or +.BR diff (1). +The exit status from +.BR cmp (1) +or +.BR diff (1) +is preserved unless a decompression error occurs; then exit status is 2. +.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 xz (1), +.BR gzip (1), +.BR bzip2 (1), +.BR lzop (1), +.BR zstd (1), +.BR zdiff (1) +.SH BUGS +Messages from the +.BR cmp (1) +or +.BR diff (1) +programs refer to temporary filenames instead of those specified. diff --git a/src/scripts/xzdiff.in b/src/scripts/xzdiff.in new file mode 100644 index 0000000..c17d78b --- /dev/null +++ b/src/scripts/xzdiff.in @@ -0,0 +1,215 @@ +#!@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. + +@enable_path_for_scripts@ +#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, bzip2, and lzop it's OK to just unset the +# environment variables. +xz='@xz@ --format=auto' +unset GZIP BZIP BZIP2 LZOP + +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*) printf '%s\n' "$version" || exit 2; exit;; + --) shift; break;; + -*\'*) cmp="$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 + +# xz needs -qQ to ignore warnings like unsupported check type. +xz1="$xz -qQ" +xz2="$xz -qQ" +xz_status=0 +exec 3>&1 + +if test $# -eq 1; then + case $1 in + *[-.]xz | *[-.]lzma | *[-.]lz | *.t[lx]z) + ;; + *[-.]bz2 | *.tbz | *.tbz2) + xz1=bzip2;; + *[-.][zZ] | *_z | *[-.]gz | *.t[ag]z) + xz1=gzip;; + *[-.]lzo | *.tzo) + xz1=lzop;; + *[-.]zst | *.tzst) + xz1='zstd -q';; + *) + printf '%s\n' "$0: $1: Unknown compressed file name suffix" >&2 + exit 2;; + esac + case $1 in + *[-.][zZ] | *_z | *[-.][gx]z | *[-.]bz2 | *[-.]lzma | *[-.]lz | *[-.]lzo | *[-.]zst) + FILE=`expr "X$1" : 'X\(.*\)[-.][abglmostxzZ2]*$'`;; + *.t[abglx]z) + FILE=`expr "X$1" : 'X\(.*[-.]t\)[abglx]z$'`ar;; + *.tbz2) + FILE=`expr "X$1" : 'X\(.*[-.]t\)bz2$'`ar;; + *.tzo) + FILE=`expr "X$1" : 'X\(.*[-.]t\)zo$'`ar;; + *.tzst) + FILE=`expr "X$1" : 'X\(.*[-.]t\)zst$'`ar;; + esac + xz_status=$( + 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;; + *[-.]lzo | *.tzo) xz1=lzop;; + *[-.]zst | *.tzst) xz1='zstd -q';; + esac + case $2 in + *[-.]bz2 | *.tbz | *.tbz2) xz2=bzip2;; + *[-.][zZ] | *_z | *[-.]gz | *.t[ag]z) xz2=gzip;; + *[-.]lzo | *.tzo) xz2=lzop;; + *[-.]zst | *.tzst) xz2='zstd -q';; + esac + case $1 in + *[-.][zZ] | *_z | *[-.][gx]z | *[-.]bz2 | *[-.]lzma | *[-.]lz | *.t[abglx]z | *.tbz2 | *[-.]lzo | *.tzo | *[-.]zst | *.tzst | -) + case "$2" in + *[-.][zZ] | *_z | *[-.][gx]z | *[-.]bz2 | *[-.]lzma | *[-.]lz | *.t[abglx]z | *.tbz2 | *[-.]lzo | *.tzo | *[-.]zst | *.tzst | -) + if test "$1$2" = --; then + xz_status=$( + exec 4>&1 + ($xz1 -cdf - 4>&-; echo $? >&4) 3>&- | + eval "$cmp" - - >&3 + ) + elif # Reject Solaris 8's buggy /bin/bash 2.03. + echo X | (echo X | eval "$cmp" /dev/fd/5 - >/dev/null 2>&1) 5<&0; then + # NOTE: xz_status will contain two numbers. + xz_status=$( + exec 4>&1 + ($xz1 -cdf -- "$1" 4>&-; echo $? >&4) 3>&- | + ( ($xz2 -cdf -- "$2" 4>&-; echo $? >&4) 3>&- 5<&- </dev/null | + eval "$cmp" /dev/fd/5 - >&3) 5<&0 + ) + else + F=`expr "/$2" : '.*/\(.*\)[-.][ablmotxz2]*$'` || F=$prog + tmp= + trap ' + test -n "$tmp" && rm -rf "$tmp" + (exit 2); exit 2 + ' HUP INT PIPE TERM 0 + if type mktemp >/dev/null 2>&1; then + # Note that FreeBSD's mktemp isn't fully compatible with + # the implementations from mktemp.org and GNU coreutils. + # It is important that the -t argument is the last argument + # and that no "--" is used between -t and the template argument. + # This way this command works on all implementations. + tmp=`mktemp -d -t "$prog.XXXXXXXXXX"` || exit 2 + else + # Fallback code if mktemp is missing. This isn't as + # robust as using mktemp since this doesn't try with + # different file names in case of a file name conflict. + # + # There's no need to save the original umask since + # we don't create any non-temp files. Note that using + # mkdir -m 0077 isn't secure since some mkdir implementations + # create the dir with the default umask and chmod the + # the dir afterwards. + umask 0077 + mkdir -- "${TMPDIR-/tmp}/$prog.$$" || exit 2 + tmp="${TMPDIR-/tmp}/$prog.$$" + fi + $xz2 -cdf -- "$2" > "$tmp/$F" || exit 2 + xz_status=$( + exec 4>&1 + ($xz1 -cdf -- "$1" 4>&-; echo $? >&4) 3>&- | + eval "$cmp" - '"$tmp/$F"' >&3 + ) + cmp_status=$? + rm -rf "$tmp" || xz_status=$? + trap - HUP INT PIPE TERM 0 + (exit $cmp_status) + fi;; + *) + xz_status=$( + exec 4>&1 + ($xz1 -cdf -- "$1" 4>&-; echo $? >&4) 3>&- | + eval "$cmp" - '"$2"' >&3 + );; + esac;; + *) + case "$2" in + *[-.][zZ] | *_z | *[-.][gx]z | *[-.]bz2 | *[-.]lzma | *[-.]lz | *.t[abglx]z | *.tbz2 | *[-.]lzo | *.tzo | *[-.]zst | *.tzst | -) + xz_status=$( + exec 4>&1 + ($xz2 -cdf -- "$2" 4>&-; echo $? >&4) 3>&- | + eval "$cmp" '"$1"' - >&3 + );; + *) + eval "$cmp" '"$1"' '"$2"';; + esac;; + esac +else + printf '%s\n' "$0: Invalid number of operands; try \`${0##*/} --help' for help" >&2 + exit 2 +fi + +cmp_status=$? +for num in $xz_status ; do + # 0 from decompressor means successful decompression. SIGPIPE from + # decompressor is possible when diff or cmp exits before the whole file + # has been decompressed. In that case we want to retain the exit status + # from diff or cmp. Note that using "trap '' PIPE" is not possible + # because gzip changes its behavior (including exit status) if SIGPIPE + # is ignored. + test "$num" -eq 0 && continue + test "$num" -ge 128 \ + && test "$(kill -l "$num" 2> /dev/null)" = "PIPE" \ + && continue + exit 2 +done +exit $cmp_status diff --git a/src/scripts/xzgrep.1 b/src/scripts/xzgrep.1 new file mode 100644 index 0000000..e0514b8 --- /dev/null +++ b/src/scripts/xzgrep.1 @@ -0,0 +1,113 @@ +.\" +.\" 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 "2022-07-19" "Tukaani" "XZ Utils" +.SH NAME +xzgrep \- search compressed files for a regular expression +.SH SYNOPSIS +.B xzgrep +.RI [ grep_options ] +.RB [ \-e ] +.I pattern +.RI [ file... ] +.br +.B xzegrep +\&... +.br +.B xzfgrep +\&... +.br +.B lzgrep +\&... +.br +.B lzegrep +\&... +.br +.B lzfgrep +\&... +.SH DESCRIPTION +.B xzgrep +invokes +.BR grep (1) +on +.I files +which may be either uncompressed or compressed with +.BR xz (1), +.BR lzma (1), +.BR gzip (1), +.BR bzip2 (1), +.BR lzop (1), +or +.BR zstd (1). +All options specified are passed directly to +.BR grep (1). +.PP +If no +.I file +is specified, then standard input is decompressed if necessary +and fed to +.BR grep (1). +When reading from standard input, +.BR gzip (1), +.BR bzip2 (1), +.BR lzop (1), +and +.BR zstd (1) +compressed files are not supported. +.PP +If +.B xzgrep +is invoked as +.B xzegrep +or +.B xzfgrep +then +.B grep \-E +or +.B grep \-F +is used instead of +.BR grep (1). +The same applies to names +.BR lzgrep , +.BR lzegrep , +and +.BR lzfgrep , +which are provided for backward compatibility with LZMA Utils. +.SH EXIT STATUS +.TP +0 +At least one match was found from at least one of the input files. +No errors occurred. +.TP +1 +No matches were found from any of the input files. +No errors occurred. +.TP +>1 +One or more errors occurred. +It is unknown if matches were found. +.SH ENVIRONMENT +.TP +.B GREP +If the +.B GREP +environment variable is set, +.B xzgrep +uses it instead of +.BR grep (1), +.BR "grep \-E" , +or +.BR "grep \-F" . +.SH "SEE ALSO" +.BR grep (1), +.BR xz (1), +.BR gzip (1), +.BR bzip2 (1), +.BR lzop (1), +.BR zstd (1), +.BR zgrep (1) diff --git a/src/scripts/xzgrep.in b/src/scripts/xzgrep.in new file mode 100644 index 0000000..490e47d --- /dev/null +++ b/src/scripts/xzgrep.in @@ -0,0 +1,298 @@ +#!@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. + +@enable_path_for_scripts@ +#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, bzip2, and lzop it's OK to just unset the +# environment variables. +xz='@xz@ --format=auto' +unset GZIP BZIP BZIP2 LZOP + +case ${0##*/} in + *egrep*) prog=xzegrep; grep=${GREP:-grep -E};; + *fgrep*) prog=xzfgrep; grep=${GREP:-grep -F};; + *) prog=xzgrep; grep=${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 + +# See if -H and --label options are supported (GNU and *BSDs). +if test f:x = "$(eval "echo x | $grep -H --label=f x 2> /dev/null")"; then + grep_supports_label=1 +else + grep_supports_label=0 +fi + +while test $# -ne 0; do + option=$1 + shift + optarg= + + case $option in + (-[0123456789abcdEFGhHiIKlLnoPqrRsTuUvVwxyzZ]*[!0123456789]*) + # Something like -Fiv was specified, that is, $option contains more + # than one option of which the first option (in this example -F) + # doesn't take an argument. Split the first option into a standalone + # argument and continue parsing the rest of the options (in this example, + # replace -Fiv with -iv in the argument list and set option=-F). + # + # If there are digits [0-9] they are treated as if they were a single + # option character because this syntax is an alias for -C for GNU grep. + # For example, "grep -25F" is equivalent to "grep -C25 -F". If only + # digits are specified like "grep -25" we don't get here because the + # above pattern in the case-statement doesn't match such strings. + arg2=-\'$(LC_ALL=C expr "X${option}X" : 'X-.[0-9]*\(.*\)' | + LC_ALL=C sed "$escape") + eval "set -- $arg2 "'${1+"$@"}' + option=$(LC_ALL=C expr "X$option" : 'X\(-.[0-9]*\)');; + (--binary-*=* | --[lm]a*=* | --reg*=*) + # These options require an argument and an argument has been provided + # with the --foo=argument syntax. All is good. + ;; + (-[ABCDefmX] | --binary-* | --file | --[lm]a* | --reg*) + # These options require an argument which should now be in $1. + # If it isn't, display an error and exit. + case ${1?"$option option requires an argument"} in + (*\'*) + optarg=" '"$(printf '%sX\n' "$1" | LC_ALL=C sed "$escape");; + (*) + optarg=" '$1'";; + esac + shift;; + (--) + break;; + (-?*) + ;; + (*) + case $option in + (*\'*) + operands="$operands '"$(printf '%sX\n' "$option" | + LC_ALL=C 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) + printf '%s\n' "$usage" || exit 2 + exit;; + (-H | --wi | --wit | --with | --with- | --with-f | --with-fi \ + | --with-fil | --with-file | --with-filen | --with-filena | --with-filenam \ + | --with-filename) + with_filename=1 + continue;; + (-l | --files-with-*) + files_with_matches=1 + continue;; + (-L | --files-witho*) + files_without_matches=1 + continue;; + (-h | --no-f*) + no_filename=1;; + (-V | --v | --ve | --ver | --vers | --versi | --versio | --version) + printf '%s\n' "$version" || exit 2 + exit;; + esac + + case $option in + (*\'?*) + option=\'$(printf '%sX\n' "$option" | LC_ALL=C sed "$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="$grep -e '"$(printf '%sX\n' "$1" | LC_ALL=C sed "$escape");; + (*) + grep="$grep -e '$1'";; + esac + shift +fi + +if test $# -eq 0; then + set -- - +fi + +exec 3>&1 + +# res=1 means that no file matched yet +res=1 + +for i; do + case $i in + *[-.][zZ] | *_z | *[-.]gz | *.t[ag]z) uncompress="gzip -cdf";; + *[-.]bz2 | *[-.]tbz | *.tbz2) uncompress="bzip2 -cdf";; + *[-.]lzo | *[-.]tzo) uncompress="lzop -cdf";; + *[-.]zst | *[-.]tzst) uncompress="zstd -cdfq";; # zstd needs -q. + *) uncompress="$xz -cdfqQ";; # -qQ to ignore warnings like unsupp. check. + esac + # xz_status will hold the decompressor's exit status. + # Exit status of grep (and in rare cases, printf or sed) is + # available as the exit status of this assignment command. + xz_status=$( + exec 5>&1 + ($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" + elif test $grep_supports_label -eq 1; then + # The grep implementation in use allows us to specify the filename + # that grep will prefix to the output lines. This is faster and + # less prone to security bugs than the fallback method that uses sed. + # This also avoids confusing output with GNU grep >= 3.5 (2020-09-27) + # which prints "binary file matches" to stderr instead of stdout. + # + # If reading from stdin, let grep use whatever name it prefers for + # stdin. With GNU grep it is a locale-specific translated string. + if test "x$i" = "x-"; then + eval "$grep -H" + else + eval "$grep -H --label \"\$i\"" + fi + else + # Append a colon so that the last character will never be a newline + # which would otherwise get lost in shell command substitution. + i="$i:" + + # Escape & \ | and newlines only if such characters are present + # (speed optimization). + case $i in + (*' +'* | *'&'* | *'\'* | *'|'*) + # If sed fails, set i to a known safe string to ensure that + # failing sed did not create a half-escaped dangerous string. + i=$(printf '%s\n' "$i" | LC_ALL=C sed 's/[&\|]/\\&/g; $!s/$/\\/') || + i='(unknown filename):';; + esac + + # $i already ends with a colon so do not add it here. + sed_script="s|^|$i|" + + # If grep or sed fails, pick the larger value of the two exit statuses. + # If sed fails, use at least 2 since we use >= 2 to indicate errors. + r=$( + exec 4>&1 + (eval "$grep" 4>&-; echo $? >&4) 3>&- | + LC_ALL=C sed "$sed_script" >&3 4>&- + ) || { + sed_status=$? + test "$sed_status" -lt 2 && sed_status=2 + test "$r" -lt "$sed_status" && r=$sed_status + } + exit $r + fi >&3 5>&- + ) + r=$? + + # If grep or sed or other non-decompression command failed with a signal, + # exit immediately and ignore the possible remaining files. + # + # NOTE: Instead of 128 + signal_number, some shells use + # 256 + signal_number (ksh) or 384 + signal_number (yash). + # This is fine for us since their "exit" and "kill -l" commands take + # this into account. (At least the versions I tried do but there is + # a report of an old ksh variant whose "exit" truncates the exit status + # to 8 bits without any special handling for values indicating a signal.) + test "$r" -ge 128 && exit "$r" + + if test -z "$xz_status"; then + # Something unusual happened, for example, we got a signal and + # the exit status of the decompressor was never echoed and thus + # $xz_status is empty. Exit immediately and ignore the possible + # remaining files. + exit 2 + elif test "$xz_status" -ge 128; then + # The decompressor died due to a signal. SIGPIPE is ignored since it can + # occur if grep exits before the whole file has been decompressed (grep -q + # can do that). If the decompressor died with some other signal, exit + # immediately and ignore the possible remaining files. + test "$(kill -l "$xz_status" 2> /dev/null)" != "PIPE" && exit "$xz_status" + elif test "$xz_status" -gt 0; then + # Decompression failed but we will continue with the remaining + # files anwyway. Set exit status to at least 2 to indicate an error. + test "$r" -lt 2 && r=2 + fi + + # Since res=1 is the initial value, we only need to care about + # matches (r == 0) and errors (r >= 2) here; r == 1 can be ignored. + if test "$r" -ge 2; then + # An error occurred in decompressor, grep, or some other command. Update + # res unless a larger error code has been seen with an earlier file. + test "$res" -lt "$r" && res=$r + elif test "$r" -eq 0; then + # grep found a match and no errors occurred. Update res if no errors have + # occurred with earlier files. + test "$res" -eq 1 && res=0 + fi +done + +# 0: At least one file matched and no errors occurred. +# 1: No matches were found and no errors occurred. +# >=2: Error. It's unknown if matches were found. +exit "$res" diff --git a/src/scripts/xzless.1 b/src/scripts/xzless.1 new file mode 100644 index 0000000..2d05459 --- /dev/null +++ b/src/scripts/xzless.1 @@ -0,0 +1,69 @@ +.\" +.\" 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 "2010-09-27" "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 text from compressed files 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) +to present its output. +Unlike +.BR xzmore , +its choice of pager cannot be altered by +setting 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) diff --git a/src/scripts/xzless.in b/src/scripts/xzless.in new file mode 100644 index 0000000..79a849e --- /dev/null +++ b/src/scripts/xzless.in @@ -0,0 +1,59 @@ +#!@POSIX_SHELL@ + +# Copyright (C) 1998, 2002, 2006, 2007 Free Software Foundation + +# The original version for gzip was written by Paul Eggert. +# 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. + +@enable_path_for_scripts@ +#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 $1 in + --help) printf '%s\n' "$usage" || exit 2; exit;; + --version) printf '%s\n' "$version" || exit 2; exit;; +esac + +if test "${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 + +if test "$(less -V | { read _ ver _ && echo ${ver%%.*}; })" -ge 429; then + # less 429 or later: LESSOPEN pipe will be used on + # standard input if $LESSOPEN begins with |-. + LESSOPEN="|-$xz -cdfqQ -- %s" +else + LESSOPEN="|$xz -cdfqQ -- %s" +fi +export LESSMETACHARS LESSOPEN + +exec less "$@" diff --git a/src/scripts/xzmore.1 b/src/scripts/xzmore.1 new file mode 100644 index 0000000..9613974 --- /dev/null +++ b/src/scripts/xzmore.1 @@ -0,0 +1,55 @@ +.\" +.\" Original zdiff.1 for gzip: Jean-loup Gailly +.\" Modifications for XZ Utils: Lasse Collin +.\" +.\" License: GNU GPLv2+ +.\" +.TH XZMORE 1 "2013-06-30" "Tukaani" "XZ Utils" +.SH NAME +xzmore, lzmore \- view xz or lzma compressed (text) files +.SH SYNOPSIS +.B xzmore +.RI [ file... ] +.br +.B lzmore +.RI [ file... ] +.SH DESCRIPTION +.B xzmore +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. +The name +.B lzmore +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 +.B xzmore +to exit. +.TP +.B s +When the prompt \-\-More\-\-(Next file: +.IR file ) +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). +.SH "SEE ALSO" +.BR more (1), +.BR xz (1), +.BR xzless (1), +.BR zmore (1) diff --git a/src/scripts/xzmore.in b/src/scripts/xzmore.in new file mode 100644 index 0000000..5188fda --- /dev/null +++ b/src/scripts/xzmore.in @@ -0,0 +1,79 @@ +#!@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. + +@enable_path_for_scripts@ +#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 $1 in + --help) printf '%s\n' "$usage" || exit 2; exit;; + --version) printf '%s\n' "$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 $# = 0; then + if test -t 0; then + printf '%s\n' "$usage"; exit 1 + else + $xz -cdfqQ | eval "${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 + printf '%s\n' "------> $FILE <------" + $xz -cdfqQ -- "$FILE" | eval "${PAGER:-more}" + fi + if test -t 1; then + FIRST=0 + fi + done +fi |