Add internationalisation with intltool and gettext

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>

Makefile.am

@@ -3,6 +3,8 @@ CLEANFILES =
 ACLOCAL_AMFLAGS = -I m4 ${ACLOCAL_FLAGS}
 AM_MAKEFLAGS = --no-print-directory
 
+SUBDIRS = . po
+
 AM_CPPFLAGS = \
 	-include $(top_builddir)/config.h \
 	-DSYSCONFDIR=\""$(sysconfdir)"\" \
@@ -36,6 +38,12 @@ pkgconfigdir = $(libdir)/pkgconfig
 %: %.in Makefile
 	$(SED_PROCESS)
 
+@INTLTOOL_POLICY_RULE@
+
+.PHONY: update-po
+update-po:
+	$(MAKE) -C po update-po
+
 EXTRA_DIST += \
 	examples/python/create-database.py \
 	examples/python/read-database.py

autogen.sh

@@ -8,6 +8,7 @@ if [ -f .git/hooks/pre-commit.sample -a ! -f .git/hooks/pre-commit ] ; then
         echo "Activated pre-commit hook."
 fi
 
+intltoolize --force --automake
 autoreconf --install --symlink
 
 libdir() {

configure.ac

@@ -29,6 +29,10 @@ LT_INIT([
 ])
 AC_PREFIX_DEFAULT([/usr])
 
+IT_PROG_INTLTOOL([0.40.0])
+GETTEXT_PACKAGE=${PACKAGE_TARNAME}
+AC_SUBST(GETTEXT_PACKAGE)
+
 AC_PROG_SED
 AC_PROG_MKDIR_P
 
@@ -82,6 +86,7 @@ PKG_CHECK_MODULES([PYTHON], [python-${PYTHON_VERSION}])
 AC_CONFIG_HEADERS(config.h)
 AC_CONFIG_FILES([
         Makefile
+        po/Makefile.in
 ])
 
 AC_OUTPUT

m4/.gitignore

+intltool.m4
 libtool.m4
 ltoptions.m4
 ltsugar.m4

po/.gitignore

+/POTFILES
+/Makefile.in.in
+/.intltool-merge-cache
+/Makefile
+/stamp-it
+*.pot

po/LINGUAS

+# nothing, yet

po/POTFILES.in

+src/python/location-query.in

src/python/location-query.in

@@ -18,6 +18,7 @@
 ###############################################################################
 
 import argparse
+import gettext
 import sys
 import syslog
 
@@ -25,7 +26,11 @@ import syslog
 import location
 
 # i18n
-_ = lambda x: x
+def _(singular, plural=None, n=None):
+	if plural:
+		return gettext.dngettext("libloc", singular, plural, n)
+
+	return gettext.dgettext("libloc", singular)
 
 class CLI(object):
 	def __init__(self):