mirror of
https://github.com/erenfro/gen2stage4.git
synced 2024-11-13 02:38:57 -05:00
Clean up based on Shellcheck recommendations (#23)
Use arrays for lists of items Do not use legacy backticks
This commit is contained in:
Tatsh
Horea Christian
parent
d4ded4bd5f
commit
52fe0c0326
1 changed files with 80 additions and 78 deletions
158
mkstage4.sh
158
mkstage4.sh
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@ -1,9 +1,9 @@
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#!/bin/bash
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# checks if run as root:
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if ! [ "`whoami`" == "root" ]
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if [ "$(whoami)" != "root" ]
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then
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echo "`basename $0`: must be root."
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echo "$(basename "$0"): must be root."
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exit 1
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fi
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@ -12,23 +12,23 @@ EXCLUDE_BOOT=0
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EXCLUDE_CONNMAN=0
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EXCLUDE_LOST=0
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QUIET=0
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USER_EXCL=""
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USER_EXCL=()
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S_KERNEL=0
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x86_64=0
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PARALLEL=0
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HAS_PORTAGEQ=0
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if [ `which portageq` ]
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if command -v portageq &>/dev/null
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then
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HAS_PORTAGEQ=1
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fi
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if [ `getconf LONG_BIT` = "64" ]
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if [ "$(getconf LONG_BIT)" == "64" ]
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then
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x86_64=1
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fi
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USAGE="usage:\n\
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`basename $0` [-q -c -b -l -k -p] [-s || -t <target-mountpoint>] [-e <additional excludes dir*>] <archive-filename> [custom-tar-options]\n\
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$(basename "$0") [-q -c -b -l -k -p] [-s || -t <target-mountpoint>] [-e <additional excludes dir*>] <archive-filename> [custom-tar-options]\n\
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-q: activates quiet mode (no confirmation).\n\
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-c: excludes connman network lists.\n\
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-b: excludes boot directory.\n\
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@ -41,8 +41,9 @@ USAGE="usage:\n\
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-h: displays help message."
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# reads options:
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while getopts ':t:e:skqcblph' flag; do
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case "${flag}" in
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while getopts ":t:e:skqcblph" flag
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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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@ -65,7 +66,7 @@ while getopts ':t:e:skqcblph' flag; do
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EXCLUDE_LOST=1
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;;
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e)
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USER_EXCL+=" --exclude=${OPTARG}"
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USER_EXCL+=("--exclude=${OPTARG}")
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;;
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p)
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PARALLEL=1
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@ -85,129 +86,132 @@ while getopts ':t:e:skqcblph' flag; do
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esac
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done
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if [ "$TARGET" == "" ]
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if [ -z "$TARGET" ]
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then
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echo "`basename $0`: no target specified."
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echo "$(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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# make sure TARGET path ends with slash
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if [ "`echo $TARGET | grep -c '\/$'`" -le "0" ]
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if [[ "$TARGET" != */ ]]
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then
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TARGET="${TARGET}/"
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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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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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if [ -z "$ARCHIVE" ]
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then
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echo "`basename $0`: no archive file name specified."
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echo "$(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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if ((QUIET == 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 $ARCHIVE | grep -c '^\/'`" -gt "0" ]
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if (($(grep -c '^\/' <<< "$ARCHIVE") > 0));
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then
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STAGE4_FILENAME="${ARCHIVE}.tar.bz2"
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else
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STAGE4_FILENAME="`pwd`/${ARCHIVE}.tar.bz2"
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STAGE4_FILENAME="$(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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shift
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mapfile -t OPTIONS <<< "$@"
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if [ ${S_KERNEL} -eq 1 ]
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if ((S_KERNEL == 1))
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then
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USER_EXCL+=" --exclude=${TARGET}usr/src/* "
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if [ ${x86_64} -eq 1 ]
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USER_EXCL+=("--exclude=${TARGET}usr/src/*")
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if ((x86_64 == 1))
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then
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USER_EXCL+=" --exclude=${TARGET}lib64/modules/* "
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USER_EXCL+=("--exclude=${TARGET}lib64/modules/*")
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else
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USER_EXCL+=" --exclude=${TARGET}lib/modules/* "
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USER_EXCL+=("--exclude=${TARGET}lib/modules/*")
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fi
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fi
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# Excludes:
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EXCLUDES="\
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--exclude=${TARGET}home/*/.bash_history \
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--exclude=${TARGET}dev/* \
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--exclude=${TARGET}var/tmp/* \
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--exclude=${TARGET}media/* \
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--exclude=${TARGET}mnt/*/* \
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--exclude=${TARGET}proc/* \
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--exclude=${TARGET}run/* \
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--exclude=${TARGET}sys/* \
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--exclude=${TARGET}tmp/* \
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--exclude=${TARGET}var/lock/* \
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--exclude=${TARGET}var/log/* \
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--exclude=${TARGET}var/run/* \
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--exclude=${TARGET}var/lib/docker/* "
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EXCLUDES=(
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"--exclude=${TARGET}home/*/.bash_history"
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"--exclude=${TARGET}dev/*"
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"--exclude=${TARGET}var/tmp/*"
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"--exclude=${TARGET}media/*"
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"--exclude=${TARGET}mnt/*/*"
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"--exclude=${TARGET}proc/*"
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"--exclude=${TARGET}run/*"
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"--exclude=${TARGET}sys/*"
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"--exclude=${TARGET}tmp/*"
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"--exclude=${TARGET}var/lock/*"
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"--exclude=${TARGET}var/log/*"
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"--exclude=${TARGET}var/run/*"
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"--exclude=${TARGET}var/lib/docker/*"
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)
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EXCLUDES_DEFAULT_PORTAGE="\
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--exclude=${TARGET}var/db/repos/gentoo/* \
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--exclude=${TARGET}var/cache/distfiles/* \
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--exclude=${TARGET}usr/portage/*"
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EXCLUDES_DEFAULT_PORTAGE=(
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"--exclude=${TARGET}var/db/repos/gentoo/*"
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"--exclude=${TARGET}var/cache/distfiles/*"
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"--exclude=${TARGET}usr/portage/*"
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)
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EXCLUDES+=$USER_EXCL
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EXCLUDES+=("${USER_EXCL[@]}")
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if [ "$TARGET" == "/" ]
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if [ "$TARGET" == '/' ]
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then
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EXCLUDES+=" --exclude=${STAGE4_FILENAME#/}"
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if [ ${HAS_PORTAGEQ} == 1 ]
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EXCLUDES+=("--exclude=${STAGE4_FILENAME#/}")
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if ((HAS_PORTAGEQ == 1))
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then
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EXCLUDES+=" --exclude=$(portageq get_repo_path / gentoo)/*"
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EXCLUDES+=" --exclude=$(portageq distdir)/*"
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EXCLUDES+=("--exclude=$(portageq get_repo_path / gentoo)/*")
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EXCLUDES+=("--exclude=$(portageq distdir)/*")
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else
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EXCLUDES+="${EXCLUDES_DEFAULT_PORTAGE}"
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EXCLUDES+=("${EXCLUDES_DEFAULT_PORTAGE[@]}")
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fi
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else
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EXCLUDES+="${EXCLUDES_DEFAULT_PORTAGE}"
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EXCLUDES+=("${EXCLUDES_DEFAULT_PORTAGE[@]}")
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fi
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if [ ${EXCLUDE_CONNMAN} -eq 1 ]
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if ((EXCLUDE_CONNMAN == 1))
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then
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EXCLUDES+=" --exclude=${TARGET}var/lib/connman/*"
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EXCLUDES+=("--exclude=${TARGET}var/lib/connman/*")
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fi
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if [ ${EXCLUDE_BOOT} -eq 1 ]
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if ((EXCLUDE_BOOT == 1))
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then
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EXCLUDES+=" --exclude=${TARGET}boot/*"
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EXCLUDES+=("--exclude=${TARGET}boot/*")
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fi
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if [ ${EXCLUDE_LOST} -eq 1 ]
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if ((EXCLUDE_LOST == 1))
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then
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EXCLUDES+=" --exclude=lost+found"
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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="-cpP --ignore-failed-read --xattrs-include='*.*' --numeric-owner"
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TAR_OPTIONS=(-cpP --ignore-failed-read "--xattrs-include='*.*'" --numeric-owner)
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if [ ${PARALLEL} -eq 1 ]
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if [ ${PARALLEL} -eq 1 ]
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then
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if hash pbzip2 2>/dev/null; then
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TAR_OPTIONS+=" --use-compress-prog=pbzip2"
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if command -v pbzip2 &>/dev/null; then
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TAR_OPTIONS+=("--use-compress-prog=pbzip2")
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else
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echo "WARING: pbzip2 isn't installed, single-threaded compressing is used."
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TAR_OPTIONS+=" -j"
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echo "WARING: pbzip2 isn't installed, single-threaded compressing is used." >&2
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TAR_OPTIONS+=("-j")
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fi
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else
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TAR_OPTIONS+=" -j"
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TAR_OPTIONS+=("-j")
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fi
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# if not in quiet mode, this message will be displayed:
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if [ "$AGREE" != "yes" ]
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if [[ "x$AGREE" != 'xyes' ]]
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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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@ -216,42 +220,40 @@ then
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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 "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 "tar $TAR_OPTIONS $EXCLUDES $OPTIONS -f $STAGE4_FILENAME ${TARGET}*"
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if [ ${S_KERNEL} -eq 1 ]
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echo "tar ${TAR_OPTIONS[*]} ${EXCLUDES[*]} ${OPTIONS[*]} -f $STAGE4_FILENAME ${TARGET}*"
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if ((S_KERNEL == 1))
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then
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echo ""
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echo "tar $TAR_OPTIONS -f $STAGE4_FILENAME.ksrc ${TARGET}usr/src/linux-$(uname -r)*"
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if [ ${x86_64} -eq 1 ]
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echo "tar ${TAR_OPTIONS[*]} -f $STAGE4_FILENAME.ksrc ${TARGET}usr/src/linux-$(uname -r)*"
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if ((x86_64 == 1))
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then
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echo ""
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echo "tar $TAR_OPTIONS -f $STAGE4_FILENAME.kmod ${TARGET}lib64/modules/$(uname -r)*"
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echo "tar ${TAR_OPTIONS[*]} -f $STAGE4_FILENAME.kmod ${TARGET}lib64/modules/$(uname -r)*"
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else
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echo ""
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echo "tar $TAR_OPTIONS -f $STAGE4_FILENAME.kmod ${TARGET}lib/modules/$(uname -r)*"
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echo "tar ${TAR_OPTIONS[*]} -f $STAGE4_FILENAME.kmod ${TARGET}lib/modules/$(uname -r)*"
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fi
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fi
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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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read -r 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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tar $TAR_OPTIONS $EXCLUDES $OPTIONS -f $STAGE4_FILENAME ${TARGET}*
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tar "${TAR_OPTIONS[@]}" "${EXCLUDES[@]}" "${OPTIONS[@]}" -f "$STAGE4_FILENAME" ${TARGET}*
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if [ ${S_KERNEL} -eq 1 ]
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then
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tar $TAR_OPTIONS -f $STAGE4_FILENAME.ksrc ${TARGET}usr/src/linux-$(uname -r)*
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tar "${TAR_OPTIONS[@]}" -f "$STAGE4_FILENAME.ksrc" "${TARGET}usr/src/linux-$(uname -r)"*
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if [ ${x86_64} -eq 1 ]
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then
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tar $TAR_OPTIONS -f $STAGE4_FILENAME.kmod ${TARGET}lib64/modules/$(uname -r)*
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tar "${TAR_OPTIONS[@]}" -f "$STAGE4_FILENAME.kmod" "${TARGET}lib64/modules/$(uname -r)"*
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else
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tar $TAR_OPTIONS -f $STAGE4_FILENAME.kmod ${TARGET}lib/modules/$(uname -r)*
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tar "${TAR_OPTIONS[@]}" -f "$STAGE4_FILENAME.kmod" "${TARGET}lib/modules/$(uname -r)"*
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fi
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fi
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fi
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exit 0
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