Create copy-data.sh

misc/copy-data.sh

@@ -0,0 +1,104 @@
+#!/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."