feat: support multiple remotes

scripts/backup.sh

@@ -124,8 +124,6 @@ function backup_package() {
 }
 
 function upload() {
-    color blue "upload backup file to storage system"
-
     # upload file not exist
     if [[ ! -e "${UPLOAD_FILE}" ]]; then
         color red "upload file not found"
@@ -135,10 +133,22 @@ function upload() {
         exit 1
     fi
 
-    rclone ${RCLONE_GLOBAL_FLAG} copy "${UPLOAD_FILE}" "${RCLONE_REMOTE}"
-    if [[ $? != 0 ]]; then
-        color red "upload failed"
+    # upload
+    local HAS_ERROR="FALSE"
 
+    for RCLONE_REMOTE_X in "${RCLONE_REMOTE_LIST[@]}"
+    do
+        color blue "upload backup file to storage system $(color yellow "[${RCLONE_REMOTE_X}]")"
+
+        rclone ${RCLONE_GLOBAL_FLAG} copy "${UPLOAD_FILE}" "${RCLONE_REMOTE_X}"
+        if [[ $? != 0 ]]; then
+            color red "upload failed"
+
+            HAS_ERROR="TRUE"
+        fi
+    done
+
+    if [[ "${HAS_ERROR}" == "TRUE" ]]; then
         send_mail_content "FALSE" "File upload failed at $(date +"%Y-%m-%d %H:%M:%S %Z")."
 
         exit 1
@@ -147,18 +157,21 @@ function upload() {
 
 function clear_history() {
     if [[ "${BACKUP_KEEP_DAYS}" -gt 0 ]]; then
-        color blue "delete ${BACKUP_KEEP_DAYS} days ago backup files"
-
-        mapfile -t RCLONE_DELETE_LIST < <(rclone ${RCLONE_GLOBAL_FLAG} lsf "${RCLONE_REMOTE}" --min-age "${BACKUP_KEEP_DAYS}d")
-
-        for RCLONE_DELETE_FILE in "${RCLONE_DELETE_LIST[@]}"
+        for RCLONE_REMOTE_X in "${RCLONE_REMOTE_LIST[@]}"
         do
-            color yellow "deleting \"${RCLONE_DELETE_FILE}\""
+            color blue "delete ${BACKUP_KEEP_DAYS} days ago backup files $(color yellow "[${RCLONE_REMOTE_X}]")"
 
-            rclone ${RCLONE_GLOBAL_FLAG} delete "${RCLONE_REMOTE}/${RCLONE_DELETE_FILE}"
-            if [[ $? != 0 ]]; then
-                color red "delete \"${RCLONE_DELETE_FILE}\" failed"
-            fi
+            mapfile -t RCLONE_DELETE_LIST < <(rclone ${RCLONE_GLOBAL_FLAG} lsf "${RCLONE_REMOTE_X}" --min-age "${BACKUP_KEEP_DAYS}d")
+
+            for RCLONE_DELETE_FILE in "${RCLONE_DELETE_LIST[@]}"
+            do
+                color yellow "deleting \"${RCLONE_DELETE_FILE}\""
+
+                rclone ${RCLONE_GLOBAL_FLAG} delete "${RCLONE_REMOTE_X}/${RCLONE_DELETE_FILE}"
+                if [[ $? != 0 ]]; then
+                    color red "delete \"${RCLONE_DELETE_FILE}\" failed"
+                fi
+            done
         done
     fi
 }

scripts/includes.sh

@@ -31,6 +31,7 @@ function color() {
 #     None
 ########################################
 function check_rclone_connection() {
+    # check configuration exist
     rclone ${RCLONE_GLOBAL_FLAG} config show "${RCLONE_REMOTE_NAME}" > /dev/null 2>&1
     if [[ $? != 0 ]]; then
         color red "rclone configuration information not found"
@@ -38,9 +39,20 @@ function check_rclone_connection() {
         exit 1
     fi
 
-    rclone ${RCLONE_GLOBAL_FLAG} mkdir "${RCLONE_REMOTE}"
-    if [[ $? != 0 ]]; then
-        color red "storage system connection failure"
+    # check connection
+    local HAS_ERROR="FALSE"
+
+    for RCLONE_REMOTE_X in "${RCLONE_REMOTE_LIST[@]}"
+    do
+        rclone ${RCLONE_GLOBAL_FLAG} mkdir "${RCLONE_REMOTE_X}"
+        if [[ $? != 0 ]]; then
+            color red "storage system connection failure $(color yellow "[${RCLONE_REMOTE_X}]")"
+
+            HAS_ERROR="TRUE"
+        fi
+    done
+
+    if [[ "${HAS_ERROR}" == "TRUE" ]]; then
         exit 1
     fi
 }
@@ -179,6 +191,40 @@ function get_env() {
     export "${VAR}=${VALUE}"
 }
 
+########################################
+# Get RCLONE_REMOTE_LIST variables.
+# Arguments:
+#     None
+# Outputs:
+#     variable value
+########################################
+function get_rclone_remote_list() {
+    # RCLONE_REMOTE_LIST
+    RCLONE_REMOTE_LIST=()
+
+    local i=0
+    local RCLONE_REMOTE_NAME_X_REFER
+    local RCLONE_REMOTE_DIR_X_REFER
+    local RCLONE_REMOTE_X
+
+    # for multiple
+    while true; do
+        RCLONE_REMOTE_NAME_X_REFER="RCLONE_REMOTE_NAME_${i}"
+        RCLONE_REMOTE_DIR_X_REFER="RCLONE_REMOTE_DIR_${i}"
+        get_env "${RCLONE_REMOTE_NAME_X_REFER}"
+        get_env "${RCLONE_REMOTE_DIR_X_REFER}"
+
+        if [[ -z "${!RCLONE_REMOTE_NAME_X_REFER}" || -z "${!RCLONE_REMOTE_DIR_X_REFER}" ]]; then
+            break
+        fi
+
+        RCLONE_REMOTE_X=$(echo "${!RCLONE_REMOTE_NAME_X_REFER}:${!RCLONE_REMOTE_DIR_X_REFER}" | sed 's@\(/*\)$@@')
+        RCLONE_REMOTE_LIST=(${RCLONE_REMOTE_LIST[@]} "${RCLONE_REMOTE_X}")
+
+        ((i++))
+    done
+}
+
 ########################################
 # Initialization environment variables.
 # Arguments:
@@ -200,13 +246,15 @@ function init_env() {
     # RCLONE_REMOTE_NAME
     get_env RCLONE_REMOTE_NAME
     RCLONE_REMOTE_NAME="${RCLONE_REMOTE_NAME:-"BitwardenBackup"}"
+    RCLONE_REMOTE_NAME_0="${RCLONE_REMOTE_NAME}"
 
     # RCLONE_REMOTE_DIR
     get_env RCLONE_REMOTE_DIR
     RCLONE_REMOTE_DIR="${RCLONE_REMOTE_DIR:-"/BitwardenBackup/"}"
+    RCLONE_REMOTE_DIR_0="${RCLONE_REMOTE_DIR}"
 
-    # RCLONE_REMOTE
-    RCLONE_REMOTE=$(echo "${RCLONE_REMOTE_NAME}:${RCLONE_REMOTE_DIR}" | sed 's@\(/*\)$@@')
+    # get RCLONE_REMOTE_LIST
+    get_rclone_remote_list
 
     # RCLONE_GLOBAL_FLAG
     get_env RCLONE_GLOBAL_FLAG
@@ -262,9 +310,12 @@ function init_env() {
     color yellow "DATA_SENDS: ${DATA_SENDS}"
     color yellow "========================================"
     color yellow "CRON: ${CRON}"
-    color yellow "RCLONE_REMOTE_NAME: ${RCLONE_REMOTE_NAME}"
-    color yellow "RCLONE_REMOTE_DIR: ${RCLONE_REMOTE_DIR}"
-    color yellow "RCLONE_REMOTE: ${RCLONE_REMOTE}"
+
+    for RCLONE_REMOTE_X in "${RCLONE_REMOTE_LIST[@]}"
+    do
+        color yellow "RCLONE_REMOTE: ${RCLONE_REMOTE_X}"
+    done
+
     color yellow "RCLONE_GLOBAL_FLAG: ${RCLONE_GLOBAL_FLAG}"
     color yellow "ZIP_ENABLE: ${ZIP_ENABLE}"
     color yellow "ZIP_PASSWORD: ${#ZIP_PASSWORD} Chars"