# -*- make -*-

# This will compile the gettext message catalogues.

# The other make files drop file lists in build/po/domains/DOMAIN/* which
# is then picked up by this make file to define all the domains and all the
# source files that compose each domain. It then produces the POT files 
# and then filters the PO files through the per-domain POT file to create
# the input to msgformat, which is then dumped into a locale directory.

BASE=..
SUBDIR=po

# Bring in the default rules
include ../buildlib/defaults.mak

CATALOGS := $(addsuffix .gmo,$(shell cat LINGUAS))
DOMAINS := $(notdir $(wildcard $(PO_DOMAINS)/*))
POTFILES := $(addsuffix .pot,$(addprefix $(PO)/,$(DOMAINS)))

# Construct a list of all mo files for all domains under $(PO_DOMAINS)
MOFILES := $(patsubst %.gmo,%.mo,$(CATALOGS))
MOFILES := $(foreach D,$(DOMAINS),$(addprefix $(PO_DOMAINS)/$(D)/,$(MOFILES)))
LANG_POFILES := $(patsubst %.mo,%.po,$(MOFILES))
LINGUAS := $(patsubst %.gmo,%,$(CATALOGS))

GETDOMAIN = $(word 1,$(subst /, ,$(1)))

# Generate the list of files from the bits the other make files dropped 
# and produce the .pot file.
$(POTFILES) : $(PO)/%.pot :
	printf "%s " "Generating POT file $@"
	echo $@ : $(wildcard $(PO)/domains/$*/*.*list) $(addprefix $(BASE)/,$(shell cat $(wildcard $(PO)/domains/$*/*.srclist))) > $@.d
# From sh source
	cat $(PO)/domains/$*/*.shlist 2> /dev/null | (cd $(BASE) && xargs -n1 bash --dump-po-strings) > $(PO)/domains/$*/sh.pot
# From C/C++ source
	cat $(PO)/domains/$*/*.srclist > $(PO)/POTFILES_$*.in
	$(XGETTEXT) --default-domain=$* --directory=$(BASE) \
	  --add-comments --foreign --keyword=_ --keyword=N_ \
	  --keyword=P_:1,2 \
	  --files-from=$(PO)/POTFILES_$*.in -o $(PO)/domains/$*/c.pot
	rm -f $(PO)/POTFILES_$*.in
	$(MSGCOMM) --omit-header --more-than=0 $(PO)/domains/$*/c.pot $(PO)/domains/$*/sh.pot --output=$@
	# copy into the domain dirs to make rosetta happy
	rm -f $(PO)/domains/$*/*.pot
	cp $@ $(PO)/domains/$*

$(PACKAGE)-all.pot:
	# we create our partial pot files without a header to avoid 
	# changing dates in *.mo files, but we want a header for our 
	# master-pot file, so we use a dummy pot with nothing but the 
	# header
	$(XGETTEXT) --default-domain=$(PO)/$(PACKAGE)-dummy.pot --foreign \
		--language=c -o $(PO)/$(PACKAGE)-dummy.pot --force-po \
		--package-name=$(PACKAGE) --package-version=$(VERSION) \
		--msgid-bugs-address=deity@lists.debian.org /dev/null
	make $(POTFILES)
	$(MSGCOMM) --more-than=0 $(PO)/$(PACKAGE)-dummy.pot $(POTFILES) --output=$@
	rm -f $(PO)/$(PACKAGE)-dummy.pot

# Filter the complete translation with the domain specific file to produce
# only the subtext needed for this domain
# We cannot express the dependencies required for this directly with a pattern
# rule, so we use the .d hack.
$(LANG_POFILES) : $(PO_DOMAINS)/%.po : $(PACKAGE)-all.pot
	printf "%s " "Generating $@"
	echo $@ : $(notdir $@) $(PO)/$(call GETDOMAIN,$*).pot > $(PO)/$(call GETDOMAIN,$*)_$(notdir $@).d
	$(MSGMERGE) $(notdir $@) $(PO)/$(call GETDOMAIN,$*).pot -o $@

$(MOFILES) : $(PO_DOMAINS)/%.mo : $(PO_DOMAINS)/%.po
	printf "%s: " "Generating $(LOCALE)/$(notdir $*)/LC_MESSAGES/$(call GETDOMAIN,$*).mo"
	$(GMSGFMT) --statistics -o $@ $<
	mkdir -p $(LOCALE)/$(notdir $*)/LC_MESSAGES/
	cp $@ $(LOCALE)/$(notdir $*)/LC_MESSAGES/$(call GETDOMAIN,$*).mo

stats:
	for i in *.pot *.po; do echo -n "$$i: "; msgfmt --statistics $$i; done

binary: $(POTFILES) $(PACKAGE)-all.pot $(MOFILES)

.PHONY: update-po
update-po: $(PACKAGE)-all.pot
	for lang in ${LINGUAS}; do \
	echo "Updating $$lang.po"; \
	$(MSGMERGE) $$lang.po $(PACKAGE)-all.pot -o $$lang.new.po; \
	cmp $$lang.new.po $$lang.po || cp $$lang.new.po $$lang.po; \
	rm -f $$lang.new.po; \
	done

check-pot-deps:
	echo $(PACKAGE)-all.pot : $(addprefix $(BASE)/,$(shell cat $(wildcard $(PO)/domains/*/*.srclist))) >> $(PO)/apt-all.d
	make $(PACKAGE)-all.pot

clean: check-pot-deps clean/local
clean/local: update-po
	rm -f $(MOFILES) $(LANG_POFILES) $(PO)/*.d

# Include the dependencies that are available
The_DFiles = $(wildcard $(PO)/*.d)
ifneq ($(words $(The_DFiles)),0)
include $(The_DFiles)
endif

.NOTPARALLEL: