add step to build translation catalogs to test for failures

.travis.yml

@@ -17,6 +17,8 @@ matrix:
       env: TOXENV=precommit
     - python: 3.6
       env: TOXENV=safety
+    - python: 3.6
+      env: TOXENV=compile-catalog
     - python: 2.7
       env: TOXENV=py27-dj18
     - python: 2.7

Makefile

@@ -3,6 +3,7 @@ help:
 	@echo "clean-build - remove build artifacts"
 	@echo "clean-pyc - remove Python file artifacts"
 	@echo "clean-test - remove test and coverage artifacts"
+	@echo "compile-catalog - compile translation catalogs"
 	@echo "test - run tests quickly with the default Python"
 	@echo "coverage - check code coverage quickly with the default Python"
 	@echo "install - install the package to the active Python's site-packages"
@@ -28,6 +29,11 @@ clean-test:
 	rm -f .coverage
 	rm -fr htmlcov/
 
+compile-catalog:
+	for loc in django_extensions/locale/*; do \
+		python setup.py compile_catalog --directory django_extensions/locale/ --locale $$(basename $$loc) --domain django || exit 1; \
+	done
+
 test:
 	python setup.py test
 

tox.ini

@@ -37,6 +37,14 @@ deps =
 	safety
 commands = safety check --full-report
 
+[testenv:compile-catalog]
+whitelist_externals =
+	make
+deps =
+	Babel
+commands =
+	make compile-catalog
+
 [testenv:py27-flake8]
 deps =
 	flake8