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