Make public/bundles/nelmioapidoc a real target, during build

This makes sure it is copied (locally, in the source tree)
as the current user, preventing permission issues cleaning it
up again. During install it is copied with everything else to
the target tree.

By making it a real, non-PHONY target, it does not get recreated
again during `make install-docs`, which could then also likely
be with root ownership.

webapp/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/Makefile.global
 # Subdirectories to recurse into for REC_TARGETS
 SUBDIRS = config
 
-domserver: composer-dump-autoload
+domserver: composer-dump-autoload public/bundles/nelmioapidoc
 
 # Install PHP dependencies
 composer-dependencies:
@@ -43,10 +43,11 @@ composer-dump-autoload-dev:
 	@echo "# the DOMjudge Symfony application in developer mode. Adjust as needed." >> $@
 	@echo "APP_ENV=dev" >> $@
 
-copy-bundle-assets:
+public/bundles/nelmioapidoc:
+# This must be copied first to later install with the rest, do this
+# during build time, so that the files have the right permissions.
 # We can not use bin/console here, as when using a fakeroot,
-# the include paths are broken. We just copy in the data we need
-	-rm -rf public/bundles/nelmioapidoc
+# the include paths are broken. We just copy in the data we need.
 	mkdir -p public/bundles/nelmioapidoc
 	cp -R vendor/nelmio/api-doc-bundle/public/* public/bundles/nelmioapidoc/
 
@@ -55,8 +56,6 @@ clean-l:
 	-rm -f vendor/autoload_runtime.php
 
 install-domserver:
-# This must be done first to install with the rest.
-	$(MAKE) copy-bundle-assets
 	$(INSTALL_DIR) $(DESTDIR)$(domserver_webappdir);
 	for d in bin config migrations public resources src templates tests vendor; do \
 		$(call install_tree,$(DESTDIR)$(domserver_webappdir),$$d) ; \
@@ -86,5 +85,4 @@ maintainer-clean-l:
 		done ; \
 	done
 
-.PHONY: composer-dump-autoload composer-dump-autoload-dev \
-        copy-bundle-assets
+.PHONY: composer-dump-autoload composer-dump-autoload-dev