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https://github.com/erenfro/gen2stage4.git
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Added new function
This commit is contained in:
Horea Christian
parent
1d09ebd688
commit
516ca128d9
1 changed files with 187 additions and 0 deletions
187
cpstage4.sh
Executable file
187
cpstage4.sh
Executable file
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#!/usr/bin/env 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 "$0"): must be root."
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exit 1
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fi
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# set flag variables to null/default
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EXCLUDE_BOOT=0
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EXCLUDE_CONFIDENTIAL=0
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EXCLUDE_LOST=0
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QUIET=0
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HAS_PORTAGEQ=0
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if command -v portageq &>/dev/null
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then
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HAS_PORTAGEQ=1
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fi
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USAGE="Usage:\n\
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$(basename "$0") [-b -c -k -l -q] [-e <additional excludes dir*>] <source> <destination>\n\
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Positional Arguments:\n\
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<source>: from where to copy system files.\n\
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<destination>: where to copy system files to.\n\
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Flags:\n\
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-b: excludes boot directory.\n\
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-c: excludes some confidential files (currently only .bash_history and connman network lists).\n\
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-e: an additional excludes directory (one dir one -e, donot use it with *).\n\
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-k: separately save current kernel modules and src (creates smaller archives and saves decompression time).\n\
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-l: excludes lost+found directory.\n\
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-q: activate quiet mode (no confirmation).\n\
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-h: display help message."
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# reads options:
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while getopts ":e:bceklqh" flag
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do
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case "$flag" in
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c)
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EXCLUDE_CONFIDENTIAL=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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e)
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USER_EXCL+=("--exclude=${OPTARG}")
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;;
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q)
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QUIET=1
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;;
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h)
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echo -e "$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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# shifts pointer to read mandatory output file specification
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shift $((OPTIND - 1))
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SOURCE=${@:$OPTIND:1}
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DESTINATION=${@:$OPTIND+1:1}
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if [ -z "$SOURCE" ]
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then
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echo "$(basename "$0"): no source specified."
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echo -e "$USAGE"
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exit 1
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fi
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if [ -z "$DESTINATION" ]
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then
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echo "$(basename "$0"): no source specified."
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echo -e "$USAGE"
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exit 1
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fi
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# make sure SOURCE path ends with slash
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if [[ "$SOURCE" != */ ]]
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then
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SOURCE="${SOURCE}/"
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fi
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# make sure DESTINATION path ends with slash
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if [[ "$DESTINATION" != */ ]]
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then
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DESTINATION="${DESTINATION}/"
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fi
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# checks for quiet mode (no confirmation)
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if ((QUIET))
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then
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AGREE="yes"
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fi
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# Excludes:
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EXCLUDES=(
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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=${TARGET}usr/portage/*"
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)
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EXCLUDES+=("${USER_EXCL[@]}")
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if [ "$TARGET" == '/' ]
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then
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EXCLUDES+=("--exclude=$(realpath "$STAGE4_FILENAME")")
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if ((HAS_PORTAGEQ))
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then
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PORTAGEQ_REPOS=$(portageq get_repos /)
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for i in ${PORTAGEQ_REPOS[@]}; do
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EXCLUDES+=("--exclude=$(portageq get_repo_path / ${i})/*")
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done
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EXCLUDES+=("--exclude=$(portageq distdir)/*")
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else
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EXCLUDES+=("${EXCLUDES_DEFAULT_PORTAGE[@]}")
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fi
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else
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EXCLUDES+=("${EXCLUDES_DEFAULT_PORTAGE[@]}")
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fi
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if ((EXCLUDE_BOOT))
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then
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EXCLUDES+=("--exclude=${TARGET}boot/*")
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fi
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if ((EXCLUDE_LOST))
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then
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EXCLUDES+=("--exclude=lost+found")
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fi
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# Generic tar options:
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RSYNC_OPTIONS=(
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-avxHAXS
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--numeric-ids
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--info=progress2
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)
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# if not in quiet mode, this message will be displayed:
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if [[ "$AGREE" != 'yes' ]]
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then
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echo "Are you sure that you want to copy system files located under"
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echo "$SOURCE"
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echo "to the following directory"
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echo "$DESTINATION"
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echo
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echo "WARNING: since all data is copied 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, manually per cmdline."
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echo "example: \$ $(basename "$0") --exclude=/etc/ssh/ssh_host* <target> <destination>"
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echo
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echo "COMMAND LINE PREVIEW:"
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echo 'rsync' "${RSYNC_OPTIONS[@]}" "${EXCLUDES[@]}" "${SOURCE}" "${DESTINATION}"
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echo
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echo -n 'Type "yes" to continue or anything else to quit: '
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read -r AGREE
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fi
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# start stage4 creation:
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if [ "$AGREE" == 'yes' ]
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then
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rsync "${RSYNC_OPTIONS[@]}" "${EXCLUDES[@]}" "${SOURCE}" "${DESTINATION}"
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fi
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