feat: Replace tar_compression with compressuion. Add tar_exclude option

src/lib/backup.sh

@@ -105,9 +105,10 @@ backup_files() {
     local uri
     local src_path
     local dst_path
-    local tar_opts
+    local opts
     local archive
-    local compression
+    local compr
+    local exclude
     local file_ext
 
     uri="$1"
@@ -132,22 +133,31 @@ backup_files() {
 
     # Overwrire __tar_options
     if [ -n "$tar_options" ]; then
-        tar_opts="$tar_options"
+        opts="$tar_options"
     else
-        tar_opts="$__tar_options"
+        opts="$__tar_options"
     fi
 
-    # Overwrite __tar_compression
-    if [ "$tar_compression" ]; then
-        compression="$tar_compression"
+    # Overwrite __tar_exclude
+    if [ "$tar_exclude" ]; then
+        for item in "${tar_exclude[@]}"; do
+            exclude+=" --exclude $item"
+        done
     else
-        compression="$__tar_compression"
+        exclude=
+    fi
+
+    # Overwrite __compression
+    if [ "$compression" ]; then
+        compr="$compression"
+    else
+        compr="$__compression"
     fi
 
     # Select filename extension by compression type.
     # Make sure for the `--auto-compress` is enabled in __tar_options
     # Refference: https://www.gnu.org/software/tar/manual/html_node/gzip.html
-    case "$compression" in
+    case "$compr" in
         gzip|gz)    file_ext='.tar.gz';;    # gzip
         tgz)        file_ext='.tgz';;       # gzip
         taz)        file_ext='.taz';;       # gzip
@@ -172,13 +182,14 @@ backup_files() {
     [ "$__verbose" ] && {
         echo "Source path: $src_path"
         echo "Destination path: $dst_path"
-        echo "Command: tar $tar_opts $archive $src_path"
+        echo "Command: tar $exclude $opts $archive $src_path"
     }
 
     log "Archiving $src_path to $archive ..."
+    log "Command: tar $exclude $opts $archive $src_path"
 
     # Run tar
-    try tar "$tar_opts" "$archive" "$src_path"
+    try tar "$exclude" "$opts" "$archive" "$src_path"
 
     # Append path to 'backups' array
     backups+=("$archive")