update: use filedir

leaf

@@ -405,13 +405,12 @@ leaf_update_environment() {
 }
 
 leaf_prepare_package() {
-  local url sourcefile index _md5sum local_src pkg_src_root
+  local url sourcefile index _md5sum local_src
 
   distdir="${DIST_DIR}"
+  filedir="${PKGBUILD_DIR}/${PKG_PREFIX}/${PKG_NAME}"
   mkdir -pv -- "${distdir}"
 
-  pkg_src_root="${PKGBUILD_DIR}/${PKG_PREFIX}/${PKG_NAME}"
-
   pushd "${distdir}" >/dev/null || leaf_error "cannot enter distdir: ${distdir}"
 
   for index in "${!sources[@]}"; do
@@ -439,7 +438,7 @@ leaf_prepare_package() {
         wget -O "${sourcefile}" -- "${url}" || leaf_error "wget failed: ${url}"
         ;;
       *)
-        local_src="${pkg_src_root}/${url}"
+        local_src="${filedir}/${url}"
         echo "Copying ${sourcefile} from local file ${local_src}..."
         [ -f "${local_src}" ] || leaf_error "local source not found: ${local_src}"
         cp -f -- "${local_src}" "${sourcefile}" || leaf_error "cp failed: ${local_src}"