From 1f2da45b253455ef9b88a29f62cfde810b4d9f20 Mon Sep 17 00:00:00 2001
From: ge <gechandev@gmail.com>
Date: Wed, 22 Jun 2022 23:50:36 +0300
Subject: [PATCH] feat: New compression logic

---
 src/lib/handlers/tar.sh | 54 +++++++++++++++++++----------------------
 1 file changed, 25 insertions(+), 29 deletions(-)

diff --git a/src/lib/handlers/tar.sh b/src/lib/handlers/tar.sh
index 70b58cd..23f5b65 100644
--- a/src/lib/handlers/tar.sh
+++ b/src/lib/handlers/tar.sh
@@ -28,7 +28,6 @@ handler::tar() {
     local dst_path
     local opts
     local archive
-    local compr
     local exclude
     local file_ext
 
@@ -68,35 +67,32 @@ handler::tar() {
         exclude=
     fi
 
-    # Overwrite __compression
-    if [ "$compression" ]; then
-        compr="$compression"
-    else
-        compr="$__compression"
-    fi
-
     # Select filename extension by compression type.
-    # Make sure for the `--auto-compress` is enabled in __tar_options
-    # Refference: https://www.gnu.org/software/tar/manual/html_node/gzip.html
-    case "$compr" in
-        gzip|gz)    file_ext='.tar.gz';;    # gzip
-        tgz)        file_ext='.tgz';;       # gzip
-        taz)        file_ext='.taz';;       # gzip
-        compress|Z) file_ext='.tar.Z';;     # compress
-        taZ)        file_ext='.taZ';;       # compress
-        bzip2|bz2)  file_ext='.tar.bz2';;   # bzip2
-        tz2)        file_ext='.tz2';;       # bzip2
-        tbz2)       file_ext='.tbz2';;      # bzip2
-        tbz)        file_ext='.tbz';;       # bzip2
-        lzip|lz)    file_ext='.tar.lz';;    # lzip
-        lzma)       file_ext='.tar.lzma';;  # lzma
-        tlz)        file_ext='.tlz';;       # lzma
-        lzop|lzo)   file_ext='.tar.lzo';;   # lzop
-        xz)         file_ext='.tar.xz';;    # xz
-        zstd|zst)   file_ext='.tar.zst';;   # zstd
-        tzst)       file_ext='.tzst';;      # zstd
-        *)          file_ext='.tar.gz';;    # Force gzip
-    esac
+    if [ "$compression" ]; then
+        # Make sure for the `--auto-compress` is enabled in __tar_options
+        # Refference: https://www.gnu.org/software/tar/manual/html_node/gzip.html
+        case "$compression" in
+            gzip|gz)    file_ext='.tar.gz';;    # gzip
+            tgz)        file_ext='.tgz';;       # gzip
+            taz)        file_ext='.taz';;       # gzip
+            compress|Z) file_ext='.tar.Z';;     # compress
+            taZ)        file_ext='.taZ';;       # compress
+            bzip2|bz2)  file_ext='.tar.bz2';;   # bzip2
+            tz2)        file_ext='.tz2';;       # bzip2
+            tbz2)       file_ext='.tbz2';;      # bzip2
+            tbz)        file_ext='.tbz';;       # bzip2
+            lzip|lz)    file_ext='.tar.lz';;    # lzip
+            lzma)       file_ext='.tar.lzma';;  # lzma
+            tlz)        file_ext='.tlz';;       # lzma
+            lzop|lzo)   file_ext='.tar.lzo';;   # lzop
+            xz)         file_ext='.tar.xz';;    # xz
+            zstd|zst)   file_ext='.tar.zst';;   # zstd
+            tzst)       file_ext='.tzst';;      # zstd
+            *)          file_ext='.tar';;       # No compression
+        esac
+    else
+        file_ext='.tar'
+    fi
 
     archive="${dst_path}/$(gen_backup_name "$file_ext")"