1 files changed, 10 insertions, 2 deletions

diff --git a/lib/common-functions b/lib/common-functions
index e6b43a5..4000336 100755
--- a/lib/common-functions
+++ b/lib/common-functions
@@ -457,8 +457,16 @@ extract_source_directory() {
 
   if [ -n "${revision}" ] \
   && [ "${revision}" != '0000000000000000000000000000000000000000' ]; then
-    curl -LSs "https://buildmaster.archlinux32.org/upstream-packages/${pkgbase}-${revision}.tar.gz" \
-    | tar -xz  --strip-components=1 -C "${output}" -- "${pkgbase}-${revision}"
+    local pkgbase_translated
+    for substitution in '' 's@+@plus@g' 's@+@-@g'; do
+      pkgbase_translated=$(
+        printf '%s\n' "${pkgbase}" \
+        | sed "${substitution}"
+      )
+      curl -LSs "https://buildmaster.archlinux32.org/upstream-packages/${pkgbase_translated}-${revision}.tar.gz" \
+      | tar -xz  --strip-components=1 -C "${output}" -- "${pkgbase_translated}-${revision}" 2>/dev/null \
+      && break
+    done
     if [ ! -f "${output}/PKGBUILD" ]; then
       >&2 printf 'failed to download/extract a PKGBUILD from upstream archlinux for %s %s\n' \
         "${pkgbase}" "${revision}"