362 lines
12 KiB
Bash
362 lines
12 KiB
Bash
# ------------------------------------------------------------------------------
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# Copyright (c) 2013-2022 Geoffray Levasseur <fatalerrors@geoffray-levasseur.org>
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# Protected by the BSD3 license. Please read bellow for details.
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#
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# * Redistribution and use in source and binary forms,
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# * with or without modification, are permitted provided
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# * that the following conditions are met:
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# *
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# * Redistributions of source code must retain the above
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# * copyright notice, this list of conditions and the
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# * following disclaimer.
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# *
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# * Redistributions in binary form must reproduce the above
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# * copyright notice, this list of conditions and the following
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# * disclaimer in the documentation and/or other materials
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# * provided with the distribution.
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# *
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# * Neither the name of the copyright holder nor the names
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# * of any other contributors may be used to endorse or
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# * promote products derived from this software without
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# * specific prior written permission.
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# *
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# * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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# * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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# * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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# * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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# * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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# * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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# * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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# * OF SUCH DAMAGE.
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# ------------------------------------------------------------------------------
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# ------------------------------------------------------------------------------
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# Smartly uncompress archives (zip only)
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# ------------------------------------------------------------------------------
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utaz()
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{
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for opt in $@ ; do
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case $opt in
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"-h"|"--help")
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echo "utaz: uncompress all the given files and/or the ones found in the given"
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echo " directories creating an host directory where needed."
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echo
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echo "Usage: utaz [option] [directorie(s)|file(s)]"
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echo
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echo "Options:"
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echo " -h, --help Display that help screen"
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echo " -d, --delete If decompression succeeded, delete the source file"
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echo " -c, --create-dir Always create a host directory"
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echo " -n, --no-dir Never create a host directory"
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echo
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return 0
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;;
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"-d"|"--delete")
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local willrm=1
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;;
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"-c"|"--create-dir")
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local createdir=1
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;;
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"-n"|"--no-dir")
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local nodir=1
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;;
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"-"*)
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disp E "Invalid option, use \"utaz --help\" to display options list"
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echo
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return 1
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;;
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*)
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# The ${opt%/} writing is to remove trailing / if any
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local LIST="$LIST ${opt%/}"
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;;
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esac
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done
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[[ $createdir && $nodir ]] && disp E "The --create-dir and --no-dir options are mutually exclusive."
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[[ ! $LIST ]] && local LIST="."
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for zitem in $LIST; do
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[[ $(ls $zitem/*.zip 2> /dev/null | wc -l) -eq 0 ]] &&
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disp W "$zitem contains no supported archive file, skipping." &&
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continue
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for f in $zitem/*.zip; do
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disp I "Processing archive $zitem/$f... "
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local dir=${f::-4}
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mkdir -p $dir
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[[ $? -gt 0 ]] &&
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disp E "The filesystem can't create directories, exit!" &&
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return 1
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unzip -o $f -d $dir > /dev/null 2>&1
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case $? in
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0)
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[[ $willrm ]] && rm -f $f && disp I "File $zitem/$f deleted."
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;;
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1)
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disp W "Compression program returned a warning: deletion canceled."
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;;
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*)
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disp E "The zip file seems corrupted, failed."
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rm -rf $dir > /dev/null 2>&1
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continue
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;;
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esac
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if [[ $createdir ]]; then
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disp I "Archive extracted successfully in subdirectory."
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elif [[ $nodir ]]; then
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mv ./$dir/* ./ && rmdir $dir
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disp I "Archive extracted successfully, no subdirectory needed."
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else
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subdirs=$(find $dir -maxdepth 1 | wc -l)
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if [[ $subdirs -eq 2 ]]; then
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mv ./$dir/* ./ && rmdir $dir
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disp I "Archive extracted successfully, no subdirectory needed."
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else
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disp I "Archive extracted successfully in subdirectory."
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fi
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fi
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done
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done
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}
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export -f utaz
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# ------------------------------------------------------------------------------
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# Compress directories or files into one or more archive
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# ------------------------------------------------------------------------------
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taz ()
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{
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_doxz()
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{
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command -v xz >/dev/null 2>&1 || {
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disp E "The program 'xz' is not installed, aborting."
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return 127
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}
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[[ $4 ]] && local verb='-v'
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# Display a warning for this format
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disp W "xz format is not suited for long term archiving."
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disp I "See https://www.nongnu.org/lzip/xz_inadequate.html for details."
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# Compresse to xz (lzma2) - Deprecated
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xz $verb --compress --keep -$3 -T $2 $1
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return $?
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}
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_dolz()
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{
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local procopt="--threads $2"
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local command=plzip
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command -v plzip >/dev/null 2>&1 || {
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command -v lzip >/dev/null 2>&1 || {
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disp E "Program 'plzip' or 'lzip' are not installed, aborting."
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return 127
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}
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local command=lzip
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local procopt=""
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[[ $2 -gt 1 ]] &&
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disp W "lzip doesn't support multithreading, falling back to 1 thread." &&
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disp W "Consitder installing plzip to obtain multithreading abilities."
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}
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[[ $4 ]] && local verb="-vv"
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# Compresse au format lzip (lzma)
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$command $verb $procopt --keep -$3 $1
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return $?
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}
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_dogz()
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{
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local procopt="--processes $2"
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local command=pigz
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command -v pigz >/dev/null 2>&1 || {
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command -v gzip >/dev/null 2>&1 || {
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disp E "Programs 'pigz' or 'gzip' are not installed, aborting."
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return 127
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}
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local command="gzip --compress"
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local procopt=""
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[[ $2 -gt 1 ]] &&
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disp W "gzip doesn't support multithreading, falling back to 1 thread." &&
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disp W "Consitder installing pigz to obtain multithreading abilities."
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}
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[[ $4 ]] && local verb="--verbose"
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# Compresse au format bz2
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$command $verb $procopt --keep -$3 $1
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return $?
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}
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_dobz2()
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{
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local procopt="-p$2"
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local command=pbzip2
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command -v pbzip2 >/dev/null 2>&1 || {
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command -v bzip2 >/dev/null 2>&1 || {
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disp E "The program 'pbzip2' or 'bzip2' are not installed, aborting."
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return 127
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}
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local command=bzip2
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local procopt=""
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[[ $2 -gt 1 ]] &&
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disp W "bzip2 doesn't support multithreading, falling back to 1 thread." &&
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disp W "Consitder installing pbzip2 to obtain multithreading abilities."
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}
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[[ $4 ]] && local verb="-v"
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# Compresse au format bz2
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$command $verb --compress $procopt --keep -$3 $1
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return $?
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}
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_dolzo()
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{
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command -v lzop >/dev/null 2>&1 || {
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disp E "The program 'lzop' is not installed, aborting."
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return 127
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}
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[[ $4 ]] && local verb='-v'
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[[ $2 -gt 1 ]] && disp W "lzop doesn't support multithreading, falling back to 1 thread."
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# Compresse au format lzo
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lzop --keep -$3 $1
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return $?
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}
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for opt in $@ ; do
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case $opt in
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"-h"|"--help")
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echo "taz: archive all files of a directory."
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echo
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echo "Usage: taz [option] [--parallel=<n>] [--format=<format>] [directory1 ... directoryN]"
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echo
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echo "Options:"
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echo " -h, --help Display that help screen"
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echo " -d, --delete Delete source file or directory after success"
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echo " -f, --format Chose archive format in the given list. If several format are"
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echo " given, the smalest is kept"
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echo " -p, --parallel Number of threads to use (if allowed by underlying utility)"
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echo " -v, --verbose Display progress where possible"
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echo " -q, --quiet Display less messages (only errors and warnings)"
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echo " -1, .., -9 Compression level to use [1=fast/big, 9=slow/small]"
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echo
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echo "Supported archive format:"
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echo " Param.| programs | Algo. | Description"
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echo " ------+---------------+-------+----------------------------------------"
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echo " lz | plzip, lzip | lzma | Safe efficient default format"
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echo " xz | xz | lzma2 | Unsafe, not for long term"
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echo " bz2 | pbzip2, bzip2 | bzip2 | Historical but less efficient than lz"
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echo " gz | pigz, gzip | lz77 | Historical, safe, fast"
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echo " lzo | lzop | lzo | Very fast but no multithread"
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echo " tar | tar | tar | No compression"
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echo
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return 0
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;;
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"-d"|"--delete")
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local willrm=1
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;;
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"-f"?*|"--format"?*)
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local compform=$(echo "$opt" | cut -f 2- -d '=')
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;;
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"-p"?*|"--parallel"?*)
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local nproc=$(echo "$opt" | cut -f 2- -d '=')
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;;
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"-v"|"--verbose")
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local verbose=1
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;;
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"-q"|"--quiet")
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QUIET=1
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"-"[1..9])
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local complevel=$(echo $opt | sed 's/-//')
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;;
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"-"*)
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echo "Invalid option, use taz --help to display options list"
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echo
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return 1
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;;
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*)
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local LIST="$LIST ${opt%/}"
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;;
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esac
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done
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[[ ! $compform ]] && compform=lz # safe and efficient (unless data are already compressed)
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[[ ! $nproc ]] && nproc=1
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[[ ! $complevel ]] && complevel=6
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[[ $verbose -gt 1 && $QUIET -gt 1 ]] &&
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disp E "The --verbose and --quiet options can't be used together."
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for item in $LIST; do
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local donetar=0
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disp I "Processing $item..."
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if [[ -d $item ]]; then
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disp I "\t Creating $item.tar... "
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tar -cf $item{.tar,}
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if [[ ! $? -eq 0 ]]; then
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disp E "tar file creation failed, skipping to next item."
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continue
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fi
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local donetar=1
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fi
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local fname=$item
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[[ $donetar -gt 0 ]] && fname=$item.tar
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# Skip compression part if tar is asked
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if [[ $compform != "tar" ]]; then
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disp I "\t Compressing archive..."
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_do$compform $fname $nproc $complevel $verbose
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[[ ! $? -eq 0 ]] && case $? in
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127)
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disp E "Compression program unavailable, aborting."
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return 127
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;;
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*)
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disp E "Compression program returned an error, not deleting anything if asked, skipping to next item."
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continue
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;;
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esac
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[[ $donetar -gt 0 ]] && rm $fname
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fi
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if [[ $willrm ]]; then
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disp I "\t Deleting original source as asked... "
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rm -r $item
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fi
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done
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unset QUIET
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}
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export -f taz
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