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#!/bin/bash
######################################################
#+ Simple archive script with multiple backends
#+ Rev. 3 - 2/07/09 - optimum.reflex@gmail.com
######################################################
hlp () { # Help function
echo "usage: $0 [--help] [archive] [sources]"
echo "[sources] is the files or folder you want added to the archive."
echo
echo "[archive] is the name of the archive generated, including extension."
echo "Extensions are: .7z .zip .bz2 .gz .lzma .tar.*"
exit 0
}
if [ $# -lt 2 ]; then # Need atleast an archive and one source
hlp
fi
tarfunc () { # function that does the work
MSG="packing [$SRCD] to [$DIR/$TAR]... "
case "$TAR" in
*.7z )
echo -n $MSG
/usr/bin/7z a -mx=9 $DIR/$TAR $SRC
;;
*.t* )
echo -n $MSG
/bin/tar -acZf $DIR/$TAR $SRC
;;
*.bz2 )
echo -n $MSG
/bin/bzip2 -cq9 $SRC > $DIR/$TAR
;;
*.gz )
echo -n $MSG
/bin/gzip -cq9 $SRC > $DIR/$TAR
;;
*.zip )
echo -n $MSG
/usr/bin/zip -qr9 $DIR/$TAR $SRC
;;
*.lzma )
echo -n $MSG
/usr/bin/lzma -cq9 $SRC > $DIR/$TAR
;;
*)
hlp;;
esac
}
tdir () { # Determin target directory for archive
if [ -d $1 ]; then
if [ "$1" == "." ]; then
DIR="$PWD"
else
DIR="$1"
fi
else
DIR="$PWD"
fi
}
case "$@" in
*--help*) hlp;;
esac
TAR="`basename $1`"
tdir `dirname $1` && shift
if [ $# -gt 1 ]; then # If more than one source
SRCD="$@" # all sources to $SRCD
i=0 # counter
while [ "$1" ]; do
if [ $i -eq 0 ]; then # only if the first source
SRC="$1" && shift
if [ ! -r "$SRC" ]; then
echo "Location [$SRC] does not exist or is unreadable."
exit 1
fi
((i++)) # increment
else # if sources after the first
if [ ! -r "$1" ]; then
echo "Location [$1] does not exist or is unreadable."
exit 1
fi
SRC="$SRC $1" && shift # copy current $SRC and append next source
fi
done
tarfunc # do the work
else # else if there is only one source
SRC="$1"
SRCD="$SRC" # copy $SRC
if [ ! -r "$SRC" ]; then
echo "Location [$SRC] does not exist or is unreadable."; exit 1
elif [ -d "$SRC" ]; then # if source is a directory
cd `dirname $SRC` # goto the directory one up from $SRC
SRC="`basename $SRC`/" # change $SRC for correct directory packing structure
fi
tarfunc # do the work
fi
if [ $? -ne 0 ]; then # if last command failed
cd $DIR
rm -f $TAR && echo "failure detected, archive deleted."
exit 1
else
echo "success!"; exit 0
fi
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