# Convenient makefile for managing translations.

# Prerequisites:
# - GNU gettext
# - Python

# Adding new translations
# -----------------------

# To start working on a new translation edit the POS=... line
# below. If you want to add for example a french translation, add
# fr.po.

# Then run "make po" to generate a fresh .po file from translatable
# strings in t_options.h. Now you can edit the new .po file (fr.po in
# the example above) to translate the strings. Please make sure that
# your editor encodes the file in UTF-8.

# Updating existing translations
# ------------------------------

# Run "make po" to update .po files with new translatable strings from
# t_options.h. Now you can edit the .po files you're interested
# in. Please make sure that your editor encodes the file in UTF-8.

# Updating options.h
# ------------------

# Finally run "make" to generate options.h from t_options.h with all
# translations. Now you can rebuild the drivers. Any common options
# used by the drivers will have option descriptions with the latest
# translations.

# Publishing translations
# -----------------------

# To get your translation(s) into Mesa CVS, please send me your
# <lang>.po file.

# More information:
# - info gettext

# The set of supported languages. Add languages as needed.
POS=de.po es.po nl.po fr.po sv.po

#
# Don't change anything below, unless you know what you're doing.
#
LANGS=$(POS:%.po=%)
MOS=$(POS:%.po=%/LC_MESSAGES/options.mo)
POT=xmlpool.pot

.PHONY: all clean pot po mo

BUILT_SOURCES = options.h

# All generated files are cleaned up.
clean:
	-rm -f $(POT) options.h *~
	-rm -rf $(LANGS)

# Default target options.h
options.h: LOCALEDIR := .
options.h: t_options.h $(MOS)
	$(AM_V_GEN) $(PYTHON2) $(PYTHON_FLAGS) $(srcdir)/gen_xmlpool.py $(srcdir)/t_options.h $(LOCALEDIR) $(LANGS) > options.h

# Update .mo files from the corresponding .po files.
%/LC_MESSAGES/options.mo: %.po
	@mo="$@"; \
	lang=$${mo%%/*}; \
	echo "Updating ($$lang) $@ from $?."; \
	mkdir -p $$lang/LC_MESSAGES; \
	msgfmt -o $@ $?

# Use this target to create or update .po files with new messages in
# driconf.py.
po: $(POT)
	@for po in $(POS); do \
		if [ -f $$po ]; then \
			echo "Merging new strings from $(POT) into $@."; \
			mv $$po $$po~; \
			msgmerge -o $$po $$po~ $(POT); \
		else \
			echo "Initializing $$po from $(POT)."; \
			msginit -i $(POT) -o $$po~ --locale=$*; \
			sed -e 's/charset=.*\\n/charset=UTF-8\\n/' $$po~ > $$po; \
		fi \
	done

pot: $(POT)

# Extract message catalog from driconf.py.
$(POT): t_options.h
	xgettext -L C --from-code utf-8 -o $(POT) t_options.h
