Merge pull request #17 from jokay/feature/exclude-folders

Support excluding directories
jokay · Dec 19, 2022 · fda3db0 · fda3db0
2 parents c12c40c + 8b5e8f2
commit fda3db0
Show file tree

Hide file tree

Showing 4 changed files with 68 additions and 21 deletions.
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## [1.3.0](https://github.com/jokay/docker-loxone-backup/releases/tag/1.3.0) (2022-12-19)
+
+### Features
+
+- Excluding specific directories from backup. ([#11])
+
 ## [1.2.0](https://github.com/jokay/docker-loxone-backup/releases/tag/1.2.0) (2022-12-08)
 
 ### Features
@@ -21,5 +27,6 @@
 Initial release.
 
 [#9]: https://github.com/jokay/docker-loxone-backup/issues/9
+[#11]: https://github.com/jokay/docker-loxone-backup/issues/11
 [#12]: https://github.com/jokay/docker-loxone-backup/issues/12
 [#14]: https://github.com/jokay/docker-loxone-backup/issues/14
diff --git a/README.md b/README.md
@@ -38,14 +38,15 @@ None
 For this Docker image, it's strongly advised to create a **separate user** who
 has only the permission **FTP**.
 
-| ENV field       | Req. / Opt.  | Description                                                                            |
-|-----------------|--------------|----------------------------------------------------------------------------------------|
-| LOXONE_IP       | **Required** | IP or url of the Loxone Miniserver.                                                    |
-| LOXONE_USERNAME | **Required** | Loxone username.                                                                       |
-| LOXONE_PASSWORD | **Required** | Loxone password.                                                                       |
-| INTERVAL        | *Optional*   | Interval of backups, default is `86400` seconds (24h).                                 |
-| KEEP_DAYS       | *Optional*   | Cleanup of backups older than x days. Default is `30`. Can be disabled by setting `0`. |
-| VERBOSE         | *Optional*   | If `true`, increases the verbosity level. Default ist `false`.                         |
+| ENV field       | Req. / Opt.  | Description                                                                                 |
+|-----------------|--------------|---------------------------------------------------------------------------------------------|
+| LOXONE_IP       | **Required** | IP or url of the Loxone Miniserver.                                                         |
+| LOXONE_USERNAME | **Required** | Loxone username.                                                                            |
+| LOXONE_PASSWORD | **Required** | Loxone password.                                                                            |
+| INTERVAL        | *Optional*   | Interval of backups. Default is `86400` seconds (24h).                                      |
+| KEEP_DAYS       | *Optional*   | Cleanup of backups older than x days. Default is `30`. Can be disabled by setting `0`.      |
+| VERBOSE         | *Optional*   | If `true`, increases the verbosity level. Default is `false`.                               |
+| EXCLUDE_DIRS    | *Optional*   | Comma separated list of folders to exclude, e.g. `dir1,dir2`. Default is excluding nothing. |
 
 ## Samples
 

diff --git a/src/Dockerfile b/src/Dockerfile
@@ -11,6 +11,7 @@ ENV LOXONE_PASSWORD ""
 ENV INTERVAL 86400
 ENV KEEP_DAYS 30
 ENV VERBOSE false
+ENV EXCLUDE_DIRS ""
 
 RUN apk add --update --no-cache  \
         tzdata \

diff --git a/src/entrypoint.sh b/src/entrypoint.sh
@@ -8,35 +8,73 @@ log_sub() {
 	printf "                         | %s\n" "${1}"
 }
 
-log "xjokay/loxone-backup ${VERSION}"
+config() {
+	log "Configuration"
+	log_sub ""
+	log_sub "INTERVAL: ${INTERVAL}"
+	log_sub "KEEP_DAYS: ${KEEP_DAYS}"
+	log_sub "VERBOSE: ${VERBOSE}"
+	log_sub "EXCLUDE_DIRS: ${EXCLUDE_DIRS}"
+}
 
-mkdir -p "/data/current" "/data/archives"
+check() {
+	if [ -z "${LOXONE_IP}" ] || [ -z "${LOXONE_USERNAME}" ] || [ -z "${LOXONE_PASSWORD}" ]; then
+		log "Required environment variables are missing!"
+		log_sub "Please specify LOXONE_IP, LOXONE_USERNAME and LOXONE_PASSWORD."
+		exit 1
+	fi
+}
 
-if [ -z "${LOXONE_IP}" ] || [ -z "${LOXONE_USERNAME}" ] || [ -z "${LOXONE_PASSWORD}" ]; then
-	log "Required environment variables are missing!"
-	log_sub "Please specify LOXONE_IP, LOXONE_USERNAME and LOXONE_PASSWORD."
-	exit 1
-fi
+setup() {
+	mkdir -p "/data/current" "/data/archives"
+}
 
-FTP_PARAMS="-a -n -e -P=5 --use-pget-n=1 --skip-noaccess --use-cache --log=ftp.log"
+ftp_params() {
+	FTP_PARAMS="-a -n -e -P=5 --use-pget-n=1 --skip-noaccess --use-cache --log=ftp.log"
 
-if [ "${VERBOSE}" = "true" ]; then
-	FTP_PARAMS="${FTP_PARAMS} -vvv"
-fi
+	if [ "${VERBOSE}" = "true" ]; then
+		FTP_PARAMS="${FTP_PARAMS} -vvv"
+	fi
 
-while :; do
-	cd "/data" || exit
+	if [ -n "${EXCLUDE_DIRS}" ]; then
+		for EXCLUDE_DIR in $(printf "%s" "${EXCLUDE_DIRS}" | sed 's/,/ /g'); do
+			rm -rf "/data/current/${EXCLUDE_DIR}"
+			FTP_PARAMS="${FTP_PARAMS} -x '${EXCLUDE_DIR}/'"
+		done
+	fi
+}
 
+backup() {
 	log "Backup files from Loxone (${LOXONE_IP}) ..."
 	lftp "${LOXONE_IP}" -u "${LOXONE_USERNAME},${LOXONE_PASSWORD}" -e "set ssl:verify-certificate false; mirror ${FTP_PARAMS} . current; quit"
 	tar -czf "archives/loxone_backup_${LOXONE_IP}_$(date +%Y-%m-%d_%H-%M-%S).tar.gz" "current/"
+}
 
+cleanup() {
 	if [ "${KEEP_DAYS}" -gt 0 ]; then
 		cd "/data/archives" || exit
 
 		log "Cleanup backups older than ${KEEP_DAYS} day(s) ..."
 		find . -mtime "+${KEEP_DAYS}" -print0 | xargs --no-run-if-empty rm
 	fi
+}
+
+log "xjokay/loxone-backup ${VERSION}"
+
+check
+
+config
+
+setup
+
+ftp_params
+
+while :; do
+	cd "/data" || exit
+
+	backup
+
+	cleanup
 
 	next=$(date -d "@$(($(date +%s) + INTERVAL))" +%Y-%m-%dT%H:%M:%S%z)
 	log "Next run on ${next} ..."