IKIWIKI_DEFAULTS ?= \
 --rcs git \
 --set cgi_wrappermode=00755 \
 --set git_wrappermode=06755 \
 --set srcdir='@CURDIR@/content' \
 --set destdir='@CURDIR@/build/html$(iki_flavor:%=-%)' \
 --set cgi_wrapper='@CURDIR@/build/cgi$(iki_flavor:%=-%)/ikiwiki.cgi' \
 --set git_wrapper='@CURDIR@/build/git/post-update-ikiwiki$(iki_flavor:%=-%)' \
 --set wikistatedir='@CURDIR@/.ikiwiki$(iki_flavor:%=-%)' \
 $(IKIWIKI_SHARED_DEFAULTS)

export CURDIR

cssprojects ?= $(wildcard shared/themes/goab styling)

sass_includes ?= shared/themes/default /usr/share/sass /usr/share/sass/stylesheets /usr/share/compass/frameworks/normalize-scss/stylesheets

all: build

-include shared/include.mk
-include config/include.mk
-include shared/themes/include.mk

always-make = $(findstring B,$(MAKEFLAGS))
avoid-broken-git = $(shell cd content && git symbolic-ref -q HEAD > /dev/null || echo " --no-rcs")

iki_configfiles := $(or $(patsubst %.in,%,$(wildcard config/ikiwiki*.setup.in)),config/ikiwiki.setup)
iki_projects = $(patsubst config/%.setup,build-iki/%,$(iki_configfiles))
form_projects := $(patsubst forms/%.cgi,build-form/%,$(wildcard forms/*.cgi forms/*/*.cgi))

init: shared/.git content
	$(MAKE) $(iki_configfiles)

shared/.git:
	git submodule init
	git submodule update --init --recursive

config/ikiwiki.setup.in:
	$(if $(wildcard config),,mkdir config)
	$(if $(wildcard config/ikiwiki.setup.in),,touch config/ikiwiki.setup.in)

configfiles: $(iki_configfiles)
$(iki_configfiles): iki_flavor = $(if $(filter config/ikiwiki-%.setup,$@),$(@:config/ikiwiki-%.setup=%))
$(iki_configfiles): % : %.in
	ikiwiki $(IKIWIKI_DEFAULTS) \
		$(if $(IKIWIKI_UNDERLAYS)$(IKIWIKI_SHARED_UNDERLAYS),\
			--set-yaml add_underlays="$$(echo $(strip \
				$(IKIWIKI_UNDERLAYS) \
				$(IKIWIKI_SHARED_UNDERLAYS)) \
			| perl -pe 's/\s+/\n/g;s/^/- /gm')") \
		$(patsubst %,--setup %,$(wildcard $<)) --dumpsetup $@
	perl -i -pe '$$s=$$ENV{'CURDIR'}; s/\@CURDIR\@/$$s/g' $@

content: notempty = $(wildcard $@/*.mdwn)
content:
	$(if $(notempty),,mkdir -p '$@')
	$(if $(notempty),,printf '# Hello world!\n\nHello world!\n' > '$@/index.mdwn')

build: $(iki_projects) $(form_projects)
$(iki_projects): build-iki/%: config/%.setup $(cssprojects)
	ikiwiki --setup $<$(avoid-broken-git)$(if $(always-make), --rebuild, --refresh)
$(form_projects): build-form/%: forms/%.cgi build-iki/ikiwiki
	install -DT $< build/$<
	perl -i -pe "s:'../build:'$(CURDIR)/build:g" build/$<
	cp -f build/html/$*/index.html build/html/$*/index.tmpl
	FORMBUILDER_NOHEADER=1 build/$< > build/html/$*/index.html~
	mv -f build/html/$*/index.html~ build/html/$*/index.html
	rm build/html/$*/index.tmpl

.PHONY: all build build-iki/% build-form/% configfiles