fix: check upload file is exist before upload

(fixed #2)

scripts/backup.sh

@@ -91,13 +91,20 @@ function backup_package() {
 function upload() {
     color blue "upload backup file to storage system"
 
+    # upload file not exist
+    if [[ ! -f ${UPLOAD_FILE} ]]; then
+        color red "upload file not found"
+
+        send_mail_content "FALSE" "File upload failed at $(date +"%Y-%m-%d %H:%M:%S"). Reason: Upload file not found."
+
+        exit 1
+    fi
+
     rclone copy ${UPLOAD_FILE} ${RCLONE_REMOTE}
     if [[ $? != 0 ]]; then
         color red "upload failed"
 
-        if [[ "${MAIL_SMTP_ENABLE}" == "TRUE" && "${MAIL_WHEN_FAILURE}" == "TRUE" ]]; then
+        send_mail_content "FALSE" "File upload failed at $(date +"%Y-%m-%d %H:%M:%S")."
-            send_mail "BitwardenRS Backup Failed" "File upload failed at $(date +"%Y-%m-%d %H:%M:%S")."
-        fi
 
         exit 1
     fi
@@ -133,8 +140,6 @@ upload
 clear_dir
 clear_history
 
-if [[ "${MAIL_SMTP_ENABLE}" == "TRUE" && "${MAIL_WHEN_SUCCESS}" == "TRUE" ]]; then
+send_mail_content "TRUE" "The file was successfully uploaded at $(date +"%Y-%m-%d %H:%M:%S")."
-    send_mail "BitwardenRS Backup Success" "The file was successfully uploaded at $(date +"%Y-%m-%d %H:%M:%S")."
-fi
 
 color none ""

scripts/includes.sh

@@ -53,6 +53,28 @@ function send_mail() {
     fi
 }
 
+########################################
+# Send mail.
+# Arguments:
+#     backup successful
+#     mail content
+########################################
+function send_mail_content() {
+    if [[ "${MAIL_SMTP_ENABLE}" == "FALSE" ]]; then
+        return
+    fi
+
+    # successful
+    if [[ "$1" == "TRUE" && "${MAIL_WHEN_SUCCESS}" == "TRUE" ]]; then
+        send_mail "BitwardenRS Backup Success" "$2"
+    fi
+
+    # failed
+    if [[ "$1" == "FALSE" && "${MAIL_WHEN_FAILURE}" == "TRUE" ]]; then
+        send_mail "BitwardenRS Backup Failed" "$2"
+    fi
+}
+
 ########################################
 # Initialization environment variables.
 # Arguments: