fix: [compose-core] add ``build`` support again, after the cache introduced a regression

bin/compose-core

@@ -1523,11 +1523,55 @@ cache:image:produce() {
             ;;
         build)
             local service_build="$src"
+            build_opts=()
+            if [ "$COMPOSE_ACTION" == "build" ]; then
+                while read-0 arg; do
+                    case "$arg" in
+                        -t|--tag)
+                            ## XXXvlab: doesn't seem to be actually a valid option
+                            if [ -n "$COMPOSE_PUSH_TO_REGISTRY" ]; then
+                                err "You can't use -t|--tag option when pushing to a registry."
+                                exit 1
+                            fi
+                            has_named_image=true
+                            read-0 val  ## should always be okay because already checked
+                            build_opts+=("$arg" "$val")
+                            ;;
+                        --help|-h)
+                            docker-compose "$action" --help |
+                                filter_docker_compose_help_message >&2
+                            exit 0
+                            ;;
+                        --*|-*)
+                            if str_pattern_matches "$arg" $DC_MATCH_MULTI; then
+                                read-0 value
+                                build_opts+=("$arg" "$value")
+                                shift
+                            elif str_pattern_matches "$arg" $DC_MATCH_SINGLE; then
+                                build_opts+=("$arg")
+                            else
+                                err "Unexpected error while parsing a second time the build arguments."
+                            fi
+                            ;;
+                        *)
+                            ## Already parsed
+                            build_opts+=("$arg")
+                            ;;
+                    esac
+                done < <(cla.normalize "${action_opts[@]}")
+            fi
+            if [ -z "$has_named_image" ]; then
+                build_opts+=(-t "${charm_image}")
+            fi
+
             Wrap -v -d "Building ${DARKPINK}$charm${NORMAL}:$hash image" -- \
-                 docker build "$service_build" -t "${charm_image}" >&2 || {
+                 docker build "$service_build" -t "${charm_image}" "${build_opts[@]}" >&2 || {
                 err "Failed to build image '${charm_image}' for ${DARKYELLOW}$service${NORMAL}."
                 return 1
             }
+            if [ -n "$has_named_image" ]; then
+                exit 0
+            fi
             ;;
         *)
             err "Unknown type '$type'."
@@ -1615,7 +1659,7 @@ service_ensure_image_ready() {
                         .services.[\"${service_quoted}\"].image = \"${charm_image_name}:${hash}\"" \
                             "$_CURRENT_DOCKER_COMPOSE" || return 1
 
-        if docker_has_image "${charm_image_name}:${hash}"; then
+        if [ "$COMPOSE_ACTION" != "build" ] && docker_has_image "${charm_image_name}:${hash}"; then
             if [ -n "$DEBUG" ]; then
                 Elt "using ${DARKPINK}$charm${NORMAL}'s image from local cache" >&2
                 print_status noop >&2
@@ -1628,7 +1672,7 @@ service_ensure_image_ready() {
     fi
 
     ## Can we pull it ? Let's check on $COMPOSE_DOCKER_REGISTRY
-    if [ -n "$COMPOSE_DOCKER_REGISTRY" ]; then
+    if [ "$COMPOSE_ACTION" != "build" ] && [ -n "$COMPOSE_DOCKER_REGISTRY" ]; then
         img=$(cache:image:registry:get "$charm" "$hash" "$service") || {
             err "Failed to get image '$charm_image_name:$hash' from registry for ${DARKYELLOW}$service${NORMAL}."
             return 1
@@ -4744,6 +4788,8 @@ while read-0 arg; do
     shift
 done < <(cla.normalize "$@")
 
+[ -n "$CACHEDIR" ] || die "No cache directory defined."
+[ -d "$CACHEDIR" ] || die "Cache directory '$CACHEDIR' doesn't exists."
 case "$action" in
     cache)
         case "${remainder_args[0]}" in
@@ -4752,8 +4798,6 @@ case "$action" in
                 exit 0
                 ;;
             clear)
-                [ -n "$CACHEDIR" ] || die "No cache directory defined."
-                [ -d "$CACHEDIR" ] || die "Cache directory '$CACHEDIR' doesn't exists."
                 Wrap "${wrap_opts[@]}" -v -d "clear cache directory" -- rm -rf "$CACHEDIR/"*
 
                 ## clear all docker caches
@@ -4905,6 +4949,9 @@ get_docker_compose "${services_args[@]}" >/dev/null || {  ## precalculate variab
 
 full_init=
 case "$action" in
+    build)
+        full_init=true  ## will actually stop after build
+        ;;
     up|run)
         full_init=true
         post_hook=true
@@ -4930,19 +4977,21 @@ case "$action" in
         ;;
 esac
 
-
 if [ -n "$full_init" ]; then
-    ## init in order
-    if [[ -z "$no_init" && -z "$no_hooks" ]]; then
-        Section setup host resources
-        setup_host_resources "${services_args[@]}" || exit 1
-        Section "acquire charm's images"
+    if [[ "$action" == "build" ]] || [[ -z "$no_init" && -z "$no_hooks" ]]; then
+        [[ "$action" == "build" ]] || Section "acquire charm's images"
         run_service_acquire_images "${services_args[@]}" || exit 1
         Feed
+        [ "$action" == "build" ] && {
+            exit 0
+        }
+
+        Section setup host resources
+        setup_host_resources "${services_args[@]}" || exit 1
+        ## init in order
         Section initialisation
         run_service_hook init "${services_args[@]}" || exit 1
     fi
-
     ## Get relations
     if [[ -z "$no_relations" && -z "$no_hooks" ]]; then
         if [ "${#rebuild_relations_to_service[@]}" != 0 ]; then
@@ -4969,6 +5018,8 @@ fi | log
 if [ "${PIPESTATUS[0]}" != 0 ]; then
     exit 1
 fi
+[ "$action" == "build" ] && exit 0
+
 
 if [ "$action" == "run" ] && [ "${#services_args}" != 0 ]; then
     charm=$(get_service_charm "${services_args[0]}") || exit 1