Jinja2: enabled extensions

CHANGELOG.md

@@ -1,3 +1,6 @@
+## 0.3.8 (2019-04-29)
+* Enabled Jinja2 extensions: i18n, do, loopcontrols
+
 ## 0.3.7 (2019-04-23)
 * The new `{{ VAR_NAME |env }}` filter lets you use environment variables in every template.
 

j2cli/cli.py

@@ -37,8 +37,16 @@ def get_source(self, environment, template):
 class Jinja2TemplateRenderer(object):
     """ Template renderer """
 
+    ENABLED_EXTENSIONS=(
+        # TODO: some day, we will load custom extensions from the CLI. Will we?
+        'jinja2.ext.i18n',
+        'jinja2.ext.do',
+        'jinja2.ext.loopcontrols',
+    )
+
     def __init__(self, cwd, allow_undefined):
         self._env = jinja2.Environment(
+            extensions=self.ENABLED_EXTENSIONS,
             loader=FilePathLoader(cwd),
             undefined=jinja2.Undefined if allow_undefined else jinja2.StrictUndefined,  # raise errors for undefineds?
             keep_trailing_newline=True

setup.py

@@ -26,7 +26,7 @@
 
 setup(
     name='j2cli',
-    version='0.3.7',
+    version='0.3.8',
     author='Mark Vartanyan',
     author_email='[email protected]',
 

tests/render-test.py

@@ -175,3 +175,8 @@ def test_undefined(self):
         self.assertRaises(UndefinedError, self._testme, ['resources/name.j2'], u'Hello !\n', env=dict())
         # `name` undefined: no error
         self._testme(['--undefined', 'resources/name.j2'], u'Hello !\n', env=dict())
+
+    def test_jinja2_extensions(self):
+        with mktemp('{% do [] %}') as template:
+            # `do` tag is an extension
+            self._testme([template], '')