diff options
Diffstat (limited to 'lzdiff')
| -rwxr-xr-x | lzdiff | 152 |
1 files changed, 0 insertions, 152 deletions
@@ -1,152 +0,0 @@ -#! /bin/sh -# Lzdiff - Diff/cmp wrapper for compressed files. -# Copyright (C) 2008, 2009 Antonio Diaz Diaz. -# -# This script is free software: you have unlimited permission -# to copy, distribute and modify it. - -LC_ALL=C -export LC_ALL -invocation_name=$0 -args= -default_ext=.lz -diff_prog=diff -file1= -file2= - -# Loop over args -while [ x"$1" != x ] ; do - - case "$1" in - --help | --he* | -h) - echo "Lzdiff - Diff/cmp wrapper for compressed files." - echo - echo "Lzdiff is a wrapper script around the diff and cmp commands that allows" - echo "transparent comparison of any combination of compressed and" - echo "non-compressed files. If any given file is compressed, its uncompressed" - echo "content is used. The supported compressors are gzip, bzip2 and lzip." - echo - echo "Usage: ${invocation_name} [OPTIONS] [DIFF_OPTIONS] FILE1 [FILE2]" - echo - echo "Compares FILE1 to FILE2. If FILE2 is omitted, compares FILE1 to the" - echo "uncompressed contents of FILE1.[gz|bz2|lz] (depending on the default" - echo "compressor selected). DIFF_OPTIONS are passed directly to diff or cmp." - echo "The exit status from diff or cmp is preserved." - echo - echo "Options:" - echo " -h, --help display this help and exit" - echo " -V, --version output version information and exit" - echo " --gzip use gzip as default decompressor" - echo " --bzip2 use bzip2 as default decompressor" - echo " --lzip use lzip as default decompressor (default)" - echo " --diff use diff to compare files (default)" - echo " --cmp use cmp to compare files" - echo - echo "Report bugs to lzip-bug@nongnu.org" - echo "Lzip home page: http://www.nongnu.org/lzip/lzip.html" - exit 0 ;; - --version | --ve* | -V) - echo "Lzdiff 0.5" - echo "Copyright (C) 2009 Antonio Diaz Diaz." - echo "This script is free software: you have unlimited permission" - echo "to copy, distribute and modify it." - exit 0 ;; - --gz*) - default_ext=.gz ;; - --bz*) - default_ext=.bz2 ;; - --lz*) - default_ext=.lz ;; - --diff) - diff_prog=diff ;; - --cmp) - diff_prog=cmp ;; - -) - echo "${invocation_name}: reading from stdin not supported" - exit 1 ;; - --) - ;; - -?*) - args="${args} $1" ;; - *) - if test -f "$1"; then - if test -z "${file1}"; then file1="$1" - else - if test -z "${file2}"; then file2="$1" - else - echo "${invocation_name}: Too many files; use --help for usage." 1>&2 - fi - fi - else - echo "${invocation_name}: File \"$1\" not found or not a regular file" 1>&2 - exit 1 - fi ;; - esac - shift -done - -if test -z "${file1}"; then - echo "${invocation_name}: No files given; use --help for usage." 1>&2 - exit 1 -fi - -if test -z "${file2}"; then - case "${file1}" in - *.gz) - file2=`printf "%s" "${file1}" | sed 's/.gz$//'` ;; - *.tgz) - file2=`printf "%s" "${file1}" | sed 's/tgz$/tar/'` ;; - *.bz2) - file2=`printf "%s" "${file1}" | sed 's/.bz2$//'` ;; - *.tbz) - file2=`printf "%s" "${file1}" | sed 's/tbz$/tar/'` ;; - *.tbz2) - file2=`printf "%s" "${file1}" | sed 's/tbz2$/tar/'` ;; - *.lz) - file2=`printf "%s" "${file1}" | sed 's/.lz$//'` ;; - *.tlz) - file2=`printf "%s" "${file1}" | sed 's/tlz$/tar/'` ;; - *) - file2="${file1}${default_ext}" ;; - esac -fi - -prog1= -prog2= -case "${file1}" in -*.gz | *.tgz) prog1=gzip ;; -*.bz2 | *.tbz | *.tbz2) prog1=bzip2 ;; -*.lz | *.tlz) prog1=lzip ;; -esac -case "${file2}" in -*.gz | *.tgz) prog2=gzip ;; -*.bz2 | *.tbz | *.tbz2) prog2=bzip2 ;; -*.lz | *.tlz) prog2=lzip ;; -esac - -retval=0 -if test -n "${prog1}"; then - if test -n "${prog2}"; then - tmp_file=`mktemp "${TMPDIR:-/tmp}"/lzdiff.XXXXXXXXXX` || { - echo 'cannot create a temporary file' 1>&2 - exit 1 - } - ${prog2} -cdfq "${file2}" > "${tmp_file}" || exit 1 - ${prog1} -cdfq "${file1}" | ${diff_prog} ${args} - "${tmp_file}" - retval=$? - rm -f "${tmp_file}" || retval=$? - else - ${prog1} -cdfq "${file1}" | ${diff_prog} ${args} - "${file2}" - retval=$? - fi -else - if test -n "${prog2}"; then - ${prog2} -cdfq "${file2}" | ${diff_prog} ${args} "${file1}" - - retval=$? - else - ${diff_prog} ${args} "${file1}" "${file2}" - retval=$? - fi -fi - -exit ${retval} |