Create copy-data.sh

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tteckster 2022-01-21 11:14:37 -05:00 committed by GitHub
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commit caccfe5c2a
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#!/usr/bin/env bash
#**Experimental**
set -o errexit
set -o errtrace
set -o nounset
set -o pipefail
shopt -s expand_aliases
alias die='EXIT=$? LINE=$LINENO error_exit'
trap die ERR
trap cleanup EXIT
function error_exit() {
trap - ERR
local DEFAULT='Unknown failure occured.'
local REASON="\e[97m${1:-$DEFAULT}\e[39m"
local FLAG="\e[91m[ERROR] \e[93m$EXIT@$LINE"
msg "$FLAG $REASON"
exit $EXIT
}
function warn() {
local REASON="\e[97m$1\e[39m"
local FLAG="\e[93m[WARNING]\e[39m"
msg "$FLAG $REASON"
}
function info() {
local REASON="$1"
local FLAG="\e[36m[INFO]\e[39m"
msg "$FLAG $REASON"
}
function msg() {
local TEXT="$1"
echo -e "$TEXT"
}
function cleanup() {
[ -d "${CTID_FROM_PATH:-}" ] && pct unmount $CTID_FROM
[ -d "${CTID_TO_PATH:-}" ] && pct unmount $CTID_TO
popd >/dev/null
rm -rf $TEMP_DIR
}
TEMP_DIR=$(mktemp -d)
pushd $TEMP_DIR >/dev/null
TITLE="Home Assistant LXC Data Copy"
while read -r line; do
TAG=$(echo "$line" | awk '{print $1}')
ITEM=$(echo "$line" | awk '{print substr($0,36)}')
OFFSET=2
if [[ $((${#ITEM} + $OFFSET)) -gt ${MSG_MAX_LENGTH:-} ]]; then
MSG_MAX_LENGTH=$((${#ITEM} + $OFFSET))
fi
CTID_MENU+=( "$TAG" "$ITEM " "OFF" )
done < <(pct list | awk 'NR>1')
while [ -z "${CTID_FROM:+x}" ]; do
CTID_FROM=$(whiptail --title "$TITLE" --radiolist \
"\nWhich HA LXC would you like to copy FROM?\n" \
16 $(($MSG_MAX_LENGTH + 23)) 6 \
"${CTID_MENU[@]}" 3>&1 1>&2 2>&3) || exit
done
while [ -z "${CTID_TO:+x}" ]; do
CTID_TO=$(whiptail --title "$TITLE" --radiolist \
"\nWhich HA LXC would you like to copy TO?\n" \
16 $(($MSG_MAX_LENGTH + 23)) 6 \
"${CTID_MENU[@]}" 3>&1 1>&2 2>&3) || exit
done
for i in ${!CTID_MENU[@]}; do
[ "${CTID_MENU[$i]}" == "$CTID_FROM" ] && \
CTID_FROM_HOSTNAME=$(sed 's/[[:space:]]*$//' <<<${CTID_MENU[$i+1]})
[ "${CTID_MENU[$i]}" == "$CTID_TO" ] && \
CTID_TO_HOSTNAME=$(sed 's/[[:space:]]*$//' <<<${CTID_MENU[$i+1]})
done
whiptail --defaultno --title "$TITLE" --yesno \
"**Experimental** Are you sure you want to copy data between the following LXCs?
$CTID_FROM (${CTID_FROM_HOSTNAME}) -> $CTID_TO (${CTID_TO_HOSTNAME})
Version: Alpha 01"13 50 || exit
info "Home Assistant Data from '$CTID_FROM' to '$CTID_TO'"
msg "Mounting Container Disks..."
DOCKER_PATH=/var/lib/docker/volumes/hass_config/
CTID_FROM_PATH=$(pct mount $CTID_FROM | sed -n "s/.*'\(.*\)'/\1/p") || \
die "There was a problem mounting the root disk of LXC '${CTID_FROM}'."
[ -d "${CTID_FROM_PATH}${DOCKER_PATH}" ] || \
die "Home Assistant directories in '$CTID_FROM' not found."
CTID_TO_PATH=$(pct mount $CTID_TO | sed -n "s/.*'\(.*\)'/\1/p") || \
die "There was a problem mounting the root disk of LXC '${CTID_TO}'."
[ -d "${CTID_TO_PATH}${DOCKER_PATH}" ] || \
die "Home Assistant directories in '$CTID_TO' not found."
rm -rf ${CTID_TO_PATH}${DOCKER_PATH}
mkdir ${CTID_TO_PATH}${DOCKER_PATH}
msg "Copying Data Between Containers..."
RSYNC_OPTIONS=(
--archive
--hard-links
--sparse
--xattrs
--no-inc-recursive
--info=progress2
)
msg "<======== Docker Data ========>"
rsync ${RSYNC_OPTIONS[*]} ${CTID_FROM_PATH}${DOCKER_PATH} ${CTID_TO_PATH}${DOCKER_PATH}
echo -en "\e[1A\e[0K\e[1A\e[0K"
info "Successfully Transferred Data."