comp (#56)

Reviewed-on: #56
Co-authored-by: artoo <artoo@artixlinux.org>
Co-committed-by: artoo <artoo@artixlinux.org>

bin/iso/buildiso.in

@@ -221,6 +221,8 @@ display_settings(){
 
     msg "ISO SETTINGS:"
     msg2 "ISO_VERSION: %s" "${ISO_VERSION}"
+    msg2 "COMPRESSION: %s" "${COMPRESSION}"
+    [[ "${COMPRESSION}" == 'zstd' ]] && msg2 "COMPRESSION_LEVEL: %s" "${COMPRESSION_LEVEL}"
 
     msg "BUILD:"
     show_profile

data/conf/artools-iso.conf

@@ -14,7 +14,8 @@
 # gpg key; leave empty or commented to skip img signing
 # GPG_KEY=""
 
-# mksquashfs compression
-# default: zstd <compression-level> should be 1 .. 22 (default 15)
-# optional xz args: COMPRESSION_ARGS=(-comp xz -Xbcj x86)
-#COMPRESSION_ARGS=(-comp zstd -Xcompression-level 22)
+# possible values: zstd (default), xz
+# COMPRESSION="zstd"
+
+# zstd only: range 1..22
+# COMPRESSION_LEVEL=15

lib/iso/squash.sh

@@ -67,7 +67,7 @@ make_sfs() {
 
         mksfs_args+=("${sfs_out}")
 
-        mksfs_args+=("${COMPRESSION_ARGS[@]}" -noappend)
+        mksfs_args+=(-comp "${COMPRESSION}" "${COMPRESSION_ARGS[@]}" -noappend)
 
         mksquashfs "${mksfs_args[@]}"
 

lib/util-iso.sh

@@ -19,8 +19,16 @@ load_iso_config(){
 
     GPG_KEY=${GPG_KEY:-''}
 
+    COMPRESSION="${COMPRESSION:-zstd}"
+
+    COMPRESSION_LEVEL="${COMPRESSION_LEVEL:-15}"
+
     if [[ -z "${COMPRESSION_ARGS[*]}" ]]; then
-        COMPRESSION_ARGS=(-comp zstd -Xcompression-level 22)
+        COMPRESSION_ARGS=(-Xcompression-level "${COMPRESSION_LEVEL}")
+    fi
+
+    if [[ "${COMPRESSION}" == 'xz' ]]; then
+        COMPRESSION_ARGS=(-Xbcj x86)
     fi
 
     return 0