sxmo-utils: refactor a bit to allow easier customizing

pkgs/additional/sxmo-utils/0004-no-busybox.patch

@@ -0,0 +1,24 @@
+diff --git a/setup_config_version.sh b/setup_config_version.sh
+index fde40c1..6386014 100755
+--- a/setup_config_version.sh
++++ b/setup_config_version.sh
+@@ -8,7 +8,7 @@ case "$1" in
+                exit
+ esac
+ 
+-case "$(busybox head -n1 "$1")" in
++case "$(head -n1 "$1")" in
+ 	"#"*)
+ 		comment="#"
+ 		;;
+@@ -23,7 +23,7 @@ case "$(busybox head -n1 "$1")" in
+ 		;;
+ esac
+ 
+-busybox md5sum "$1" | \
+-	busybox cut -d" " -f1 | \
+-	busybox xargs -I{} busybox sed -i "2i$comment configversion: {}" \
++md5sum "$1" | \
++	cut -d" " -f1 | \
++	xargs -I{} sed -i "2i$comment configversion: {}" \
+ 	"$1"

pkgs/additional/sxmo-utils/default.nix

@@ -2,6 +2,7 @@
 , fetchgit
 , gitUpdater
 , lib
+, rsync
 }:
 
 stdenv.mkDerivation rec {
@@ -19,9 +20,10 @@ stdenv.mkDerivation rec {
     ./0001-group-differs-from-user.patch
     ./0002-ensure-log-dir.patch
     ./0003-fix-xkb-paths.patch
+    ./0004-no-busybox.patch
 
     # personal preferences:
-    ./0004-full-auto-rotate.patch
+    ./0104-full-auto-rotate.patch
   ];
 
   postPatch = ''
@@ -30,8 +32,11 @@ stdenv.mkDerivation rec {
     sed -i "s@/usr/bin/@@g" scripts/core/sxmo_version.sh
     sed -i 's:ExecStart=/usr/bin/:ExecStart=/usr/bin/env :' configs/superd/services/*.service
 
-    # on devices where volume is part of the primary keyboard, we want to avoid overwriting the default map
-    cp ${./en_us_105.xkb} configs/xkb/xkb_mobile_normal_buttons
+    # apply customizations
+    # - xkb_mobile_normal_buttons:
+    #   - on devices where volume is part of the primary keyboard (e.g. thinkpad), we want to avoid overwriting the default map
+    #   - this provided map is the en_US 105 key map
+    ${rsync}/bin/rsync -rlv ${./customization}/ ./
   '';
 
   installFlags = [