Update workflow to add build artifacts

.github/workflows/compile-kernel.yml

@@ -31,4 +31,8 @@ jobs:
       - name: run build script with ghrunner config
         run: ./build.sh --ghrunner
 
-
+      # Upload build results
+      - uses: actions/upload-artifact@v2
+        with:
+          name: build-results
+          path: output/*.tar.gz     

build.sh

@@ -144,7 +144,7 @@ read_arguments() {
                 ALLOW_ROOTFS_CHANGES='on'
                 shift;
             ;;
-	        --initramfs)
+            --initramfs)
 	            BUILD_INITRAMFS='on'
 	            shift;
             ;;
@@ -221,6 +221,10 @@ build_kernel()
         kernel_config="config/linux-$kernel_branch.config";
     fi
 
+    if [[ $GHRUNNER == 'on' ]]; then
+        rm -rf "${output_dir}"
+    fi
+
     # generate output directory
     mkdir -p "${output_dir}"
     mkdir -p "${boot_dir}"
@@ -235,7 +239,6 @@ build_kernel()
     else
         if [ ${CLEAN_KERNEL_SRC} = 'on' ]; then
             echo "### Kernel dir does exist. Fetching and cleaning"
-            echo "### If you want to skip this step provide --noclean"
 
             cd ${kernel_dir}
 
@@ -246,7 +249,7 @@ build_kernel()
 
             cd ${current_dir}
         else
-            echo "### Kernel dir does exist. --noclean provided"
+            echo "### Kernel dir does exist. --clean not provided"
             echo "### Continuing with dirty kernel src"
 
         fi
@@ -271,7 +274,6 @@ build_kernel()
     cp dts/*.dts "${kernel_dir}"/arch/arm/boot/dts/
 
 
-
     # cleanup old modules for this kernel, this helps when rebuilding kernel with less modules
     if [ -d "${output_dir}"/lib/modules/"${kernel_version}" ]; then
     	rm -r "${output_dir}"/lib/modules/"$kernel_version"