mirror of
https://github.com/erenfro/gen2stage4.git
synced 2024-09-21 11:02:53 -04:00
160 lines
3.3 KiB
Bash
Executable file
160 lines
3.3 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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EXCLUDE_LOST=0
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QUIET=0
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USAGE="usage:\n\
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`basename $0` [-q -c -b] [-s || -t <target-mountpoint>] <archive-filename> [custom-tar-options]\n\
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-q: activates quiet mode (no confirmation).\n\
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-c: excludes connman network lists.\n\
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-b: excludes boot directory.\n\
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-l: excludes lost+found directory.\n\
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-s: makes tarball of current system.\n\
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-t: makes tarball of system located at the <target-mountpoint>.\n\
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-h: displays help message."
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# reads options:
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while getopts ':t:sqcblh' flag; do
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case "${flag}" in
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t)
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TARGET="$OPTARG"
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;;
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s)
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TARGET="/"
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;;
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q)
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QUIET=1
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;;
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c)
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EXCLUDE_CONNMAN=1
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;;
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b)
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EXCLUDE_BOOT=1
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;;
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l)
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EXCLUDE_LOST=1
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;;
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h)
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echo -e "$USAGE"
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exit 0
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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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if [ "$TARGET" == "" ]
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then
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echo "`basename $0`: no target specified."
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echo -e "$USAGE"
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exit 1
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fi
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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 $0`: no archive file name specified."
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echo -e "$USAGE"
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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 $ARCHIVE | grep -c '^\/'`" -gt "0" ]
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then
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STAGE4_FILENAME="${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=home/*/.bash_history \
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--exclude=dev/* \
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--exclude=media/* \
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--exclude=mnt/*/* \
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--exclude=proc/* \
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--exclude=run/* \
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--exclude=sys/* \
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--exclude=tmp/* \
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--exclude=usr/portage/* \
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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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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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if [ ${EXCLUDE_LOST} -eq 1 ]
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then
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EXCLUDES+=" --exclude=lost+found"
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fi
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# Generic tar options:
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TAR_OPTIONS="-cjpP --ignore-failed-read -f"
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# if not in quiet mode, this message will be displayed:
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if [ "$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 the following directory?"
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echo "$TARGET"
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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 "COMMAND LINE PREVIEW:"
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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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