mirror of
https://github.com/erenfro/gen2stage4.git
synced 2024-11-13 02:38:57 -05:00
138 lines
3.1 KiB
Bash
Executable file
138 lines
3.1 KiB
Bash
Executable file
#!/bin/bash
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# checks if run as root:
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if ! [ "`whoami`" == "root" ]
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then
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echo "`basename $0`: must be root."
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exit 1
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fi
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#set flag variables to null
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EXCLUDE_BOOT=0
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EXCLUDE_CONNMAN=0
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QUIET=0
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# reads options:
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while getopts ':t:sqc' flag; do
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case "${flag}" in
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t)
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TARGET="$OPTARG"
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;;
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s)
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TARGET="/"
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;;
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q)
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QUIET=1
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;;
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c)
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EXCLUDE_CONNMAN=1
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;;
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b)
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EXCLUDE_BOOT=1
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;;
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\?)
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echo "Invalid option: -$OPTARG" >&2
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exit 1
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;;
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:)
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echo "Option -$OPTARG requires an argument." >&2
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exit 1
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;;
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esac
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done
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# shifts pointer to read mandatory output file specification
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shift $(($OPTIND - 1))
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ARCHIVE=$1
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# checks for correct output file specification
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if [ "$ARCHIVE" == "" ]
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then
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echo "`basename $0`: no archive file name specified."
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echo "syntax:"
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echo "\$ `basename $0` [-q -c -b] [-s || -t <target-mountpoint>] <archive-filename> [custom-tar-options]"
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echo "-q: activates quiet mode (no confirmation)."
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echo "-c: excludes connman network lists."
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echo "-b: excludes boot directory."
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echo "-s: makes tarball of current system."
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echo "-t: makes tarball of system located at the <target-mountpoint>."
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exit 1
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fi
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# checks for quiet mode (no confirmation)
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if [ ${QUIET} -eq 1 ]
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then
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AGREE="yes"
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fi
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# determines if filename was given with relative or absolute path
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if [ "`echo $ARCHIVE | grep -c '\/'`" -gt "0" ] && \
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[ "`echo $ARCHIVE | grep -c '^\/'`" -gt "0" ]
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then
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STAGE4_FILENAME="${ARCHIVE}.tar.bz2"
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else
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STAGE4_FILENAME="`pwd`/${ARCHIVE}.tar.bz2"
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fi
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#Shifts pointer to read custom tar options
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shift;OPTIONS="$@"
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# Excludes:
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EXCLUDES="\
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--exclude=proc/* \
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--exclude=sys/* \
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--exclude=tmp/* \
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--exclude=mnt/*/* \
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--exclude=var/lock/* \
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--exclude=var/log/* \
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--exclude=var/run/* \
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--exclude=.bash_history \
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--exclude=lost+found \
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--exclude=usr/portage/*"
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if [ "$TARGET" == "/" ]
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then
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EXCLUDES+=" --exclude=$STAGE4_FILENAME"
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fi
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if [ ${EXCLUDE_CONNMAN} -eq 1 ]
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then
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EXCLUDES+=" --exclude=var/lib/connman/*"
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fi
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if [ ${EXCLUDE_BOOT} -eq 1 ]
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then
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EXCLUDES+=" --exclude=$boot/*"
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fi
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# Generic tar options:
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TAR_OPTIONS="-cjpP --ignore-failed-read -f"
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# if not in quiet mode, this message will be displayed:
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if [ "$AGREE" != "yes" ]
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then
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echo "Are you sure that you want to make a stage 4 tarball of the system"
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echo "located under $TARGET ?"
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echo ""
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echo "!!! The option --exclude=${TARGET}mnt/*/* is not yet tested! It should"
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echo "include all the mount points, but exclude mounted data."
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echo ""
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echo "WARNING: since all data is saved by default the user should exclude all"
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echo "security- or privacy-related files and directories, which are not"
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echo "already excluded by mkstage4 options (such as -c), manually per cmdline."
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echo "example: \$ `basename $0` -s /my-backup --exclude=/etc/ssh/ssh_host*"
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echo ""
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echo -e "COMMAND LINE PREVIEW:\n\$"
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echo "cd $TARGET && tar $TAR_OPTIONS $STAGE4_FILENAME * $EXCLUDES $OPTIONS"
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echo ""
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echo -n "Type \"yes\" to continue or anything else to quit: "
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read AGREE
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fi
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# start stage4 creation:
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if [ "$AGREE" == "yes" ]
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then
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cd $TARGET && tar $TAR_OPTIONS $STAGE4_FILENAME * $EXCLUDES $OPTIONS
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fi
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exit 0
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