[buildkite] Fix unbound variable in post_build script (#113687) (#113688

) Co-authored-by: Brian Seeders <brian.seeders@elastic.co>
elastic · Oct 1, 2021 · 53fa6f5 · 53fa6f5
1 parent fe00c13
commit 53fa6f5
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/.buildkite/scripts/lifecycle/post_build.sh b/.buildkite/scripts/lifecycle/post_build.sh
@@ -9,7 +9,7 @@ export BUILD_SUCCESSFUL
 
 node "$(dirname "${0}")/ci_stats_complete.js"
 
-if [[ "$GITHUB_PR_NUMBER" ]]; then
+if [[ "${GITHUB_PR_NUMBER:-}" ]]; then
   DOCS_CHANGES_URL="https://kibana_$GITHUB_PR_NUMBER}.docs-preview.app.elstc.co/diff"
   DOCS_CHANGES=$(curl --connect-timeout 10 -m 10 -sf "$DOCS_CHANGES_URL" || echo '')