find-lvgl-sources: simplify

Replace the script with simple find commands, that don't pull in
unrelated demo/asset files to speed up the build.

find-lvgl-sources.sh

@@ -1,6 +1,6 @@
 #!/bin/sh
 
-# Copyright 2021 Johannes Marbach
+# Copyright 2022 Johannes Marbach, Oliver Smith
 #
 # This file is part of unl0kr, hereafter referred to as the program.
 #
@@ -17,44 +17,11 @@
 # You should have received a copy of the GNU General Public License
 # along with this program. If not, see <https://www.gnu.org/licenses/>.
 
-
-find "$1" -name "*.mk" | while IFS= read -r makefile; do
-    grep "^CSRCS\s*+=" "$makefile" | sed "s|.*=\s*||g" | while read -r expr; do
-        dir=$(dirname "$makefile")
-
-        # Ignore example code
-        if [ "${dir%examples}" != "$dir" ]; then
-            continue
-        fi
-
-        # Handle full & relative paths
-        if echo "$expr" | grep -q '$(LVGL_DIR'; then
-            expr=$(echo "$expr" \
-                | sed 's|$(LVGL_DIR)/||g' \
-                | sed 's|$(LVGL_DIR_NAME)/|lvgl/|g' \
-                | sed 's|$(LV_DRIVERS_DIR_NAME)/|lv_drivers/|g')
-        else
-            expr="$dir/$expr"
-        fi
-
-        # Map erroneous(?) paths
-        expr=$(echo "$expr" | sed 's|gpu/lv_gpu_nxp_pxp.c|draw/nxp_pxp/lv_gpu_nxp_pxp.c|g')
-        expr=$(echo "$expr" | sed 's|gpu/lv_gpu_nxp_pxp_osa.c|draw/nxp_pxp/lv_gpu_nxp_pxp_osa.c|g')
-        expr=$(echo "$expr" | sed 's|gpu/lv_gpu_nxp_vglite.c|draw/nxp_vglite/lv_gpu_nxp_vglite.c|g')
-        expr=$(echo "$expr" | sed 's|gpu/lv_gpu_stm32_dma2d.c|draw/stm32_dma2d/lv_gpu_stm32_dma2d.c|g')
-
-        # Resolve $(wildcard ...)
-        expr=$(echo "$expr" | sed 's|$(wildcard\s*\(.*\))|\1|g')
-
-        # Resolve $(shell ...)
-        if echo "$expr" | grep -q '$(shell'; then
-            expr=$(echo "$expr" | sed 's|$(shell\s*\(.*\))|\1|g')
-            expr=$(eval "$expr")
-        fi
-
-        # Resolve wildcards
-        for file in $expr; do
-            echo $file
-        done
-    done
-done
+find lv_drivers -name '*.c'
+find lvgl/src/core -name '*.c'
+find lvgl/src/draw -name '*.c'
+find lvgl/src/extra -name '*.c'
+find lvgl/src/font -name '*.c'
+find lvgl/src/hal -name '*.c'
+find lvgl/src/misc -name '*.c'
+find lvgl/src/widgets -name '*.c'