feat: allow an environment variable to specify config location

It can be useful (especially in scripts) to specify a configuration
location via an environment variable. If the "PYTHON_GITLAB_CFG"
environment variable is defined, treat its value as the path to a
configuration file and include it in the set of default configuration
locations.

1 files changed, 11 insertions, 0 deletions

diff --git a/gitlab/tests/test_config.py b/gitlab/tests/test_config.py
index 65bd300..681b3d1 100644
--- a/gitlab/tests/test_config.py
+++ b/gitlab/tests/test_config.py
@@ -15,6 +15,7 @@
 # You should have received a copy of the GNU Lesser General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+import os
 import unittest
 
 import mock
@@ -72,6 +73,16 @@ per_page = 200
 """
 
 
+class TestEnvConfig(unittest.TestCase):
+    def test_env_present(self):
+        with mock.patch.dict(os.environ, {"PYTHON_GITLAB_CFG": "/some/path"}):
+            self.assertEqual(["/some/path"], config._env_config())
+
+    def test_env_missing(self):
+        with mock.patch.dict(os.environ, {}, clear=True):
+            self.assertEqual([], config._env_config())
+
+
 class TestConfigParser(unittest.TestCase):
     @mock.patch("os.path.exists")
     def test_missing_config(self, path_exists):