new: adding ``--quiet|-q`` as a quick solution to allow removing any bogus logs from ``stdout``.

Main issue is to be able to use actions for instance and use their
output in other scripts.

bin/compose-core

@@ -1467,7 +1467,7 @@ run_service_hook () {
             MASTER_BASE_CHARM_NAME=$(get_service_charm "$MASTER_BASE_SERVICE_NAME") || return 1
             DOCKER_BASE_IMAGE=$(service_base_docker_image "$MASTER_BASE_SERVICE_NAME") || return 1
 
-            Wrap -d "running $YELLOW$action$NORMAL hook of $DARKYELLOW$subservice$NORMAL in charm $DARKPINK$charm$NORMAL" <<EOF || return 1
+            Wrap "${wrap_opts[@]}" -d "running $YELLOW$action$NORMAL hook of $DARKYELLOW$subservice$NORMAL in charm $DARKPINK$charm$NORMAL" <<EOF || return 1
 
             export DOCKER_BASE_IMAGE="$DOCKER_BASE_IMAGE"
             export SERVICE_NAME=$subservice
@@ -2517,7 +2517,7 @@ run_service_relations () {
                 RELATION_TARGET_COMPOSE_DEF=$(get_compose_service_def "$target_service") || return 1
                 export RELATION_TARGET_COMPOSE_DEF MASTER_TARGET_{CHARM,SERVICE}_NAME
 
-                Wrap -d "Building $DARKYELLOW$subservice$NORMAL --$DARKBLUE$relation_name$NORMAL--> $DARKYELLOW$target_service$NORMAL" <<EOF || return 1
+                Wrap "${wrap_opts[@]}" -d "Building $DARKYELLOW$subservice$NORMAL --$DARKBLUE$relation_name$NORMAL--> $DARKYELLOW$target_service$NORMAL" <<EOF || return 1
 _run_service_relation "$relation_name" "$subservice" "$target_service" "\$relation_config"
 EOF
             done < <(get_service_relations "$subservice") || return 1
@@ -3487,6 +3487,7 @@ display_help() {
     echo "  --dirs                      Display data dirs and quit"
     echo "                              (ignoring any other options)"
     echo "  -v, --verbose               Be more verbose"
+    echo "  -q, --quiet                 Be quiet"
     echo "  -d, --debug                 Print full debugging information (sets also verbose)"
     echo "  --dry-compose-run           If docker-compose will be run, only print out what"
     echo "                              command line will be used."
@@ -3713,6 +3714,7 @@ mkdir -p "$CACHEDIR" || exit 1
 ## Argument parsing
 ##
 
+wrap_opts=()
 services=()
 remainder_args=()
 compose_opts=()
@@ -3741,6 +3743,10 @@ while read-0 arg; do
                     export VERBOSE=true
                     compose_opts+=("--verbose")
                     ;;
+                --quiet|-q)
+                    export QUIET=true
+                    export wrap_opts+=("-q")
+                    ;;
                 --version|-V)
                     print_version
                     docker-compose --version