reorganises Makefile, adds headings

http/Makefile

@@ -1,23 +1,47 @@
 include config.mk
 
+
+#############
+# VARIABLES #
+#############
+
 src_files := $(filter-out %.args,$(wildcard src/*.upp*))
 src_files += $(filter-out %.args,$(wildcard src/**/*.upp*))
 src_files_ext := $(suffix $(src_files))
 out_deps_ext := $(src_files_ext:.upp%=%)
+
 layout_files := $(wildcard share/layouts/*.layout.upp*)
 layouts := $(notdir $(basename $(basename $(layout_files))))
+
 out_deps := $(addprefix out/,$(src_files:src/%=%))
 remove_layout_from_out_deps = out_deps := $$(subst $(1).upp,.,$$(out_deps))
 $(foreach layout,$(layouts),$(eval $(call remove_layout_from_out_deps,.$(layout))))
 $(eval $(call remove_layout_from_out_deps,))
 
+blogs := $(subst blogs/,,$(wildcard blogs/*))
+
+
+#############
+# FUNCTIONS #
+#############
+
+blog_post_target = src/$(blog)/%$(if $(BLOG_LAYOUT_$(blog)),.$(BLOG_LAYOUT_$(blog))).upphtml
+blog_post_src = blogs/$(blog)/%.$(BLOG_EXT_$(blog)) $$(wildcard bin/*)
+blog_src = $(patsubst \
+	blogs/$(blog)/%.$(BLOG_EXT_$(blog)),\
+	src/$(blog)/%$(if $(BLOG_LAYOUT_$(blog)),.$(BLOG_LAYOUT_$(blog))).upphtml,\
+	$(shell find -L "blogs/$(blog)" -type f -and -name *.$(BLOG_EXT_$(blog))))
+
 define out_rule =
 out/%.$(ext): src/%$(layout).upp$(ext)
 	./bin/mkws https://joeac.net "$$$$(realpath $$<)"
 endef
 
-blog_post_target = src/$(blog)/%$(if $(BLOG_LAYOUT_$(blog)),.$(BLOG_LAYOUT_$(blog))).upphtml
-blog_post_src = blogs/$(blog)/%.$(BLOG_EXT_$(blog)) $$(wildcard bin/*)
+define blog_rule =
+.PHONY: $(blog)
+$(blog): $(blog_src)
+endef
+
 define blog_post_rule =
 $(blog_post_target): $(blog_post_src)
 	./bin/blog \
@@ -27,24 +51,17 @@ $(blog_post_target): $(blog_post_src)
 		-f $$*.$(BLOG_EXT_$(blog))
 endef
 
-blogs := $(subst blogs/,,$(wildcard blogs/*))
-
-blog_src = $(patsubst \
-	blogs/$(blog)/%.$(BLOG_EXT_$(blog)),\
-	src/$(blog)/%$(if $(BLOG_LAYOUT_$(blog)),.$(BLOG_LAYOUT_$(blog))).upphtml,\
-	$(shell find -L "blogs/$(blog)" -type f -and -name *.$(BLOG_EXT_$(blog))))
-
-define blog_rule =
-.PHONY: $(blog)
-$(blog): $(blog_src)
-endef
-
 define prune_blog_rule =
 .PHONY: prune_$(blog)
 prune_$(blog):
 	./bin/prune_blog $(blog)
 endef
 
+
+#########
+# RULES #
+#########
+
 all: $(blogs) public out
 
 .PHONY: out