fix(ci): verify repo index consistency in poll-upstream check

The RPM file existing on the server is not sufficient — the repo
metadata must also reference it. After checking the file exists,
verify repomd.xml is present and dnf repoquery can find the package
in the index. This catches the case where sync succeeded but
createrepo_c failed.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.gitea/workflows/poll-upstream.yml

@@ -31,22 +31,44 @@ jobs:
           for target in "43:cuda13"; do
             fedora_version="${target%%:*}"
             flavour="${target##*:}"
-            url="https://rpm.lair.cafe/fedora/${fedora_version}/x86_64/mistralrs-server-${flavour}-${version}-1.fc${fedora_version}.x86_64.rpm"
+            base_url="https://rpm.lair.cafe/fedora/${fedora_version}/x86_64"
+            rpm_name="mistralrs-server-${flavour}-${version}-1.fc${fedora_version}.x86_64.rpm"
+
+            # check that the rpm file exists
             http_code=$(curl \
                 --silent \
                 --write-out "%{http_code}" \
                 --output /dev/null \
                 --head \
-                --url "${url}")
-            if [ "${http_code}" = "200" ]; then
-              echo "found: ${url}"
-            elif [ "${http_code}" = "404" ]; then
-              echo "missing: ${url}"
+                --url "${base_url}/${rpm_name}")
+            if [ "${http_code}" = "404" ]; then
+              echo "missing: ${base_url}/${rpm_name}"
               needs_build=true
-            else
-              echo "unexpected HTTP ${http_code} for ${url}"
+              continue
+            elif [ "${http_code}" != "200" ]; then
+              echo "unexpected HTTP ${http_code} for ${base_url}/${rpm_name}"
               exit 1
             fi
+            echo "found: ${base_url}/${rpm_name}"
+
+            # check that the repo index references this package
+            if ! curl --silent --fail "${base_url}/repodata/repomd.xml" \
+                | grep --quiet 'primary'; then
+              echo "missing or invalid repomd.xml at ${base_url}/repodata/"
+              needs_build=true
+              continue
+            fi
+            if ! dnf repoquery \
+                --repofrompath=check,"${base_url}" \
+                --repo=check \
+                --quiet \
+                "mistralrs-server-${flavour}-${version}" 2>&1 \
+                | grep --quiet "mistralrs-server-${flavour}"; then
+              echo "repo index missing: mistralrs-server-${flavour}-${version} not in ${base_url}/repodata/"
+              needs_build=true
+              continue
+            fi
+            echo "indexed: mistralrs-server-${flavour}-${version} in ${base_url}/repodata/"
           done
           echo "already_built=$( [ "${needs_build}" = "true" ] && echo false || echo true )" >> "$GITHUB_OUTPUT"
         env: