gitlab-ci-cd/drupal#57 The target branch for the merge script is now...

gitlab-ci-cd/drupal#57 The target branch for the merge script is now "release", if it exists, otherwise "main"

bin/merge

@@ -6,7 +6,14 @@ if [[ "x$TARGETBRANCH" == "x" ]]; then
     echo "Main branch can not be merged."
     exit 1
   elif [[ "$SOURCEBRANCH" == "develop" ]]; then
-    TARGETBRANCH=main
+    # Check if remote branch "release" exists.
+    EC=0
+    git rev-parse --quiet --verify origin/release >/dev/null || EC=$?
+    if [[ $EC -eq 0 ]]; then
+      TARGETBRANCH=release
+    else
+      TARGETBRANCH=main
+    fi
   else
     TARGETBRANCH=develop
   fi