build(Makefile): rework help and clean

Makefile

@@ -1,34 +1,42 @@
 export SHELL=bash
 
+export CLEAN_DEPENDENCIES ?= false
+
 .PHONY: help
 # HELP: print out this help message
 help:
-	@if [ -z "$$(which perl 2>/dev/null)" ] ; then \
-	  $(CONTAINER_FGRUN) .:/mnt 'debian:12.5' '/mnt/utils/makehelp.pl' '/mnt/Makefile' ; \
-	else \
-	  utils/makehelp.pl Makefile ; \
-	fi
+	docker compose run help
 
 .PHONY: clean
-# HELP: stop all running containers and remove all compilation results in the directory (but leave images including dependencies unharmed)
-clean:
-	-rm -rf frontend/node_modules .npm .cache frontend/assets/icons frontend/assets/favicons frontend/static well-known config/manifest.json frontend/src/env.sass
-	-rm -rf .stack-work .stack-work.lock
-	-rm -rf bin .Dockerfile develop
-	-$(CONTAINER_COMMAND) container prune --force
-.PHONY: clean-images
-# HELP: stop all running containers and clean all images from local repositories
-clean-images:
-	rm -rf develop
-	sleep 5
-	-$(CONTAINER_COMMAND) system prune --all --force --volumes
-	-$(CONTAINER_COMMAND) image prune --all --force
-	-$(CONTAINER_COMMAND) volume prune --force
+# HELP: clean compilation caches
+clean: clean-frontend clean-backend ;
 .PHONY: clean-all
-# HELP: like clean but with full container, image, and volume prune
-clean-all: clean
-	-rm -rf .stack
-	$(CONTAINER_COMMAND) system reset --force
+# HELP: clean everything, including dependency and image caches
+clean-all: CLEAN_DEPENDENCIES = true
+clean-all: clean ;
+
+.PHONY: clean-%
+# HELP(clean-$SERVICE): invalidate caches for a given service. Supported services: frontend, backend.
+clean-%:
+	$(MAKE) stop-$*
+	@$(MAKE) -- --clean-$*
+	@echo "Cleaned $* build files and binaries."
+ifeq ("$(CLEAN_DEPENDENCIES)", "true")
+	@$(MAKE) -- --clean-$*-deps
+	@echo "Cleaned $* dependencies."
+endif
+--clean-frontend:
+	-rm -rf assets/icons assets/favicons
+	-rm -rf static well-known
+--clean-frontend-deps:
+	-rm -rf frontend/node_modules
+	-rm -rf frontend/.npm
+--clean-backend:
+	-rm -rf backend/.stack-work
+	-rm -rf bin/
+--clean-backend-deps:
+	-rf -rf backend/.stack
+
 
 .PHONY: release
 # HELP: create, commit and push a new release

compose.yaml

@@ -1,4 +1,12 @@
 services:
+  help:
+    image: docker.io/library/perl:stable
+    pull_policy: if_not_present
+    volumes:
+      - ./utils/makehelp.pl:/mnt/utils/makehelp.pl
+      - ./Makefile:/tmp/Makefile
+    command: perl /mnt/utils/makehelp.pl
+
   frontend:
     build:
       context: ./frontend
@@ -22,6 +30,7 @@ services:
     userns_mode: host
     volumes:
       - ./backend:/fradrive
+      - ./bin:/usr/bin/fradrive
       - ./assets:/fradrive/assets:ro
       - ./static:/fradrive/static:ro
       - ./well-known:/fradrive/well-known:ro