+# check if topic exists:
+# if topic=binding-rpc, then checkout first patch in binding-rpc topic (if it exists)
+# if topic:binding-rpc, then cherry-pick first patch in binding-rpc topic (if it exists)
+if [[ "${PATCHES_TO_BUILD}" == *"topic"* ]]; then
+ if [[ "${PATCHES_TO_BUILD}" == *"topic="* ]]; then
+ CHERRY_PICK="false"
+ TOPIC="${PATCHES_TO_BUILD#*=}"
+ elif [[ "${PATCHES_TO_BUILD}" == *"topic:"* ]]; then
+ CHERRY_PICK="true"
+ TOPIC="${PATCHES_TO_BUILD#*:}"
+ else
+ echo "ERROR: Topic has wrong format" && exit 1
+ fi
+ echo "Create topic ${TOPIC} patch list"
+ PATCHES_TO_BUILD=""
+ read -ra PROJECT_LIST <<< "${BUILD_ORDER}"
+ echo "List of projects to check patch in topic: ${PROJECT_LIST[*]}"
+ for PROJECT in "${PROJECT_LIST[@]}"; do
+ # get all patches number for a topic for a given project
+ IFS=$'\n' read -rd '' -a GERRIT_PATCH_LIST <<< "$(ssh -p 29418 "jenkins-$SILO@git.opendaylight.org" gerrit query status:open "topic:${TOPIC}" "project:${PROJECT}" 2> /dev/null \
+ | grep 'number:' | awk '{{ print $2 }}')" || true
+ # add project if it is the first with patches or it is not the first
+ if [[ -z "${PATCHES_TO_BUILD}" && -n "${GERRIT_PATCH_LIST[*]}" ]]; then
+ PATCHES_TO_BUILD="${PROJECT}"
+ elif [[ -n "${PATCHES_TO_BUILD}" ]]; then
+ if [[ -n "${GERRIT_PATCH_LIST[*]}" ]]; then
+ echo "Add ${PROJECT}:${DISTRIBUTION_BRANCH_TO_BUILD}"
+ fi
+ PATCHES_TO_BUILD="${PATCHES_TO_BUILD},${PROJECT}"
+ fi
+ # sort project patches
+ if [[ -n "${GERRIT_PATCH_LIST[*]}" ]]; then
+ echo "Add ${PROJECT}:${GERRIT_PATCH_LIST[*]}"
+ REF_LIST=()
+ # create reference list with patch number-refspec
+ for PATCH in "${GERRIT_PATCH_LIST[@]}"; do
+ REFSPEC=$(ssh -p 29418 "jenkins-$SILO@git.opendaylight.org" gerrit query "change:${PATCH}" --current-patch-set \
+ | grep 'ref:' | awk '{{ print $2 }}')
+ REF_LIST+=("${PATCH}-${REFSPEC/refs\/changes\/}")
+ done
+ # sort reference list by patch number
+ IFS=$'\n' SORT_REF=$(sort <<<"${REF_LIST[*]}") && unset IFS
+ read -rd '' -a SORT_REF_LIST <<< "${SORT_REF[*]}" || true
+ # add refspec to patches to build list
+ COUNT=0
+ for PATCH in "${SORT_REF_LIST[@]}"; do
+ COUNT=$((COUNT+1))
+ if [ "${COUNT}" == "1" ] && [ "${CHERRY_PICK}" == "false" ]; then
+ # checkout patch
+ PATCHES_TO_BUILD="${PATCHES_TO_BUILD}=${PATCH/*-/}"
+ else
+ # cherry-pick is better than checkout patch
+ PATCHES_TO_BUILD="${PATCHES_TO_BUILD}:${PATCH/*-/}"
+ fi
+ done
+ fi
+ done
+fi
+echo "Patches to build: ${PATCHES_TO_BUILD}"