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-rwxr-xr-xsrc/scripts/xzdiff67
-rw-r--r--src/scripts/xzdiff.158
-rw-r--r--src/scripts/xzdiff.in172
3 files changed, 209 insertions, 88 deletions
diff --git a/src/scripts/xzdiff b/src/scripts/xzdiff
deleted file mode 100755
index 50179bb9..00000000
--- a/src/scripts/xzdiff
+++ /dev/null
@@ -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
diff --git a/src/scripts/xzdiff.1 b/src/scripts/xzdiff.1
index 7d4f6060..252d1cd3 100644
--- a/src/scripts/xzdiff.1
+++ b/src/scripts/xzdiff.1
@@ -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.
diff --git a/src/scripts/xzdiff.in b/src/scripts/xzdiff.in
new file mode 100644
index 00000000..3c09ad02
--- /dev/null
+++ b/src/scripts/xzdiff.in
@@ -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
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-24 04:23:22 +0000