lib/common-functions: Retry the curl command if empty gz is returned

1 files changed, 17 insertions, 8 deletions

diff --git a/lib/common-functions b/lib/common-functions
index da5ddc1..f13b1f2 100755
--- a/lib/common-functions
+++ b/lib/common-functions
@@ -476,14 +476,23 @@ extract_source_directory() {
     pkgbase_translated=$(gitlab_project_name_to_path "${pkgbase}")
     tmptarfile=$(mktemp "${tmp_dir}"'/tmp.upstream-package.XXXXXXXXXX')
     url="https://buildmaster.archlinux32.org/upstream-packages/${pkgbase_translated}-${revision}.tar.gz"
-    curl -o "$tmptarfile" -fLSs "${url}"
-    res=$?
-    if [ "$res" -ne 0 ]; then
-      >&2 printf 'Download upstream-package "%s" from upstream via buildmaster cache failed. Curl exit code was %s.' \
-        "${url}" \
-        "${res}"
-      return 1
-    fi
+    for i in {1..4}; do
+        curl -o "$tmptarfile" -fLSs "${url}"
+        res=$?
+        if [ "$res" -ne 0 ]; then
+          >&2 printf 'Download upstream-package "%s" from upstream via buildmaster cache failed. Curl exit code was %s.' \
+            "${url}" \
+            "${res}"
+          return 1
+        fi
+
+        # If zero bytes, try again
+        if [ -s "${tmptarfile}" ]; then
+            break
+        fi
+
+	sleep 5
+    done
     if [ -f "${tmptarfile}" ]; then
       tar -xz -f "${tmptarfile}" --strip-components=1 -C "${output}" -- "${pkgbase_translated}-${revision}"
       printf '\n' >> \