Samba Backup

2023-07-23 09:37:27 -05:00
parent 0b8e7992e7
commit 6a6368e10f
23 changed files with 1549 additions and 0 deletions
@@ -0,0 +1,110 @@
+#!/command/with-contenv bashio
+# shellcheck shell=bash
+
+declare SLUG
+declare SNAP_NAME
+
+
+# ------------------------------------------------------------------------------
+# Create a new backup (full or partial).
+# ------------------------------------------------------------------------------
+function create-backup {
+    local args
+    local addons
+    local folders
+
+    SNAP_NAME=$(generate-backup-name)
+
+    args=()
+    args+=("--name" "$SNAP_NAME")
+    [ -n "$BACKUP_PWD" ] && args+=("--password" "$BACKUP_PWD")
+
+    # do we need a partial backup?
+    if [[ -n "$EXCLUDE_ADDONS" || -n "$EXCLUDE_FOLDERS" ]]; then
+        # include all installed addons that are not listed to be excluded
+        addons=$(ha addons --raw-json | jq -rc '.data.addons[] | select (.installed != false) | .slug')
+        for ad in ${addons}; do [[ ! $EXCLUDE_ADDONS =~ $ad ]] && args+=("-a" "$ad"); done
+
+        # include all folders that are not listed to be excluded
+        folders=(homeassistant ssl share addons/local media)
+        for fol in "${folders[@]}"; do [[ ! $EXCLUDE_FOLDERS =~ $fol ]] && args+=("-f" "$fol"); done
+    fi
+
+    # run the command
+    bashio::log.info "Creating backup \"${SNAP_NAME}\""
+    SLUG="$(ha backups new "${args[@]}" --raw-json | jq -r .data.slug)"
+}
+
+# ------------------------------------------------------------------------------
+# Copy the latest backup to the remote share.
+# ------------------------------------------------------------------------------
+function copy-backup {
+    local store_name
+    local input
+    local count
+
+    if [ "$SLUG" = "null" ]; then
+        bashio::log.error "Error occurred! Backup could not be created! Please try again"
+        return 1
+    fi
+
+    store_name=$(generate-filename "$SNAP_NAME")
+
+    # append number to filename if already existing
+    input="$(eval "${SMB} -c 'cd \"${TARGET_DIR}\"; ls'")"
+    count=$(echo "$input" | grep "\<$store_name.*\.tar\>" | wc -l)
+    (( "$count" > 0 )) && store_name="${store_name}${count}.tar" || store_name="${store_name}.tar"
+
+    bashio::log.info "Copying backup ${SLUG} (${store_name}) to share"
+    cd /backup || return 1
+
+    if ! run-and-log "${SMB} -c 'cd \"${TARGET_DIR}\"; put ${SLUG}.tar ${store_name}'"; then
+        bashio::log.warning "Could not copy backup ${SLUG} to share. Trying again ..."
+        sleep 5
+        run-and-log "${SMB} -c 'cd \"${TARGET_DIR}\"; put ${SLUG}.tar ${store_name}'"
+    fi
+}
+
+# ------------------------------------------------------------------------------
+# Delete old local backups.
+# ------------------------------------------------------------------------------
+function cleanup-backups-local {
+    local snaps
+    local slug
+    local name
+
+    [ "$KEEP_LOCAL" == "all" ] && return 0
+
+    snaps=$(ha backups --raw-json | jq -c '.data.backups[] | {date,slug,name}' | sort -r)
+    bashio::log.debug "List of local backups:\n$snaps"
+
+    echo "$snaps" | tail -n +$((KEEP_LOCAL + 1)) | while read -r backup; do
+        slug=$(echo "$backup" | jq -r .slug)
+        name=$(echo "$backup" | jq -r .name)
+        bashio::log.info "Deleting ${slug} (${name}) local"
+        run-and-log "ha backups remove ${slug}"
+    done
+}
+
+# ------------------------------------------------------------------------------
+# Delete old backups on the share.
+# ------------------------------------------------------------------------------
+function cleanup-backups-remote {
+    local input
+    local snaps
+
+    [ "$KEEP_REMOTE" == "all" ] && return 0
+
+    # read all tar files that match the backup name pattern and sort them
+    input="$(eval "${SMB} -c 'cd \"${TARGET_DIR}\"; ls'")"
+    snaps="$(echo "$input" | grep -E '\<([0-9a-f]{8}|Samba_Backup_.*)\.tar\>' | while read -r name _ _ _ a b c d; do
+        theDate=$(echo "$a $b $c $d" | xargs -i date +'%Y-%m-%d %H:%M' -d "{}")
+        echo "$theDate $name"
+    done | sort -r)"
+    bashio::log.debug "List of remote backups:\n$snaps"
+
+    echo "$snaps" | tail -n +$((KEEP_REMOTE + 1)) | while read -r _ _ name; do
+        bashio::log.info "Deleting ${name} on share"
+        run-and-log "${SMB} -c 'cd \"${TARGET_DIR}\"; rm ${name}'"
+    done
+}