new: added ``--rebuild-relations-to-service, -R SERVICE`` to force the rebuild of relations with target service.

bin/compose

@@ -2212,7 +2212,7 @@ export -f get_default_target_services
 
 
 get_master_services() {
-    local loaded master_service
+    local loaded master_service service
     declare -A loaded
     for service in "$@"; do
         master_service=$(get_top_master_service_for_service "$service") || return 1
@@ -2390,6 +2390,8 @@ display_help() {
     echo "  -d, --debug                 Print full debugging information (sets also verbose)"
     echo "  --dry-compose-run           If docker-compose will be run, only print out what"
     echo "                              command line will be used."
+    echo "  --rebuild-relations-to-service, -R SERVICE"
+    echo "                              Will rebuild all relations to given service"
 
     get_docker_compose_opts_help | remove_options_in_option_help_msg --version --help --verbose |
         filter_docker_compose_help_message
@@ -2606,6 +2608,7 @@ no_init=
 action=
 stage="main"  ## switches from 'main', to 'action', 'remainder'
 is_docker_compose_action=
+rebuild_relations_to_service=()
 DC_MATCH_MULTI=$(get_docker_compose_multi_opts_list) &&
     DC_MATCH_SINGLE=$(get_docker_compose_single_opts_list) || return 1
 while read-0 arg; do
@@ -2649,6 +2652,11 @@ while read-0 arg; do
                 --no-init)
                     export no_init=true
                     ;;
+                --rebuild-relations-to-service|-R)
+                    read-0 value
+                    rebuild_relations_to_service+=("$value")
+                    shift
+                    ;;
                 --debug)
                     export DEBUG=true
                     export VERBOSE=true
@@ -2858,6 +2866,16 @@ if [ "$full_init" ]; then
 
     ## Get relations
     if [ -z "$no_relations" ]; then
+        if [ "${#rebuild_relations_to_service[@]}" != 0 ]; then
+            rebuild_relations_to_service=(
+                $(get_master_services "${rebuild_relations_to_service[@]}"))
+            project=$(get_default_project_name) || return 1
+            for service in "${rebuild_relations_to_service[@]}"; do
+                for dir in "$VARDIR/relations/$project/"*"-${service}/"*; do
+                    [ -d "$dir" ] && rm -rf "$dir"
+                done
+            done
+        fi
         run_service_relations "${services[@]}" || exit 1
     fi