🏗 Read merge commit only if file was created (#33264)

ampproject · Mar 15, 2021 · fb7f095 · fb7f095
1 parent 60adca7
commit fb7f095
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/.circleci/fetch_merge_commit.sh b/.circleci/fetch_merge_commit.sh
@@ -34,6 +34,12 @@ if [[ -z "$PR_NUMBER" ]]; then
   exit 0
 fi
 
+# If PR_NUMBER exists, but the merge commit file doesn't exist, the PR was
+# created after the first stage of CI was run. There is nothing more to do.
+if [[ ! -f .CIRCLECI_MERGE_COMMIT ]]; then
+  exit 0
+fi
+
 # Extract the merge commit for this workflow and make it visible to other steps.
 CIRCLECI_MERGE_COMMIT="$(cat .CIRCLECI_MERGE_COMMIT)"
 echo "export CIRCLECI_MERGE_COMMIT=$CIRCLECI_MERGE_COMMIT" >> $BASH_ENV