Add the ability to use env variable pointing to a .env file (#242)

joke2k · Sep 7, 2021 · e04667c · e04667c
1 parent 64209ed
commit e04667c
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Showing 2 changed files with 16 additions and 0 deletions.
diff --git a/environ/environ.py b/environ/environ.py
@@ -748,6 +748,7 @@ def read_env(cls, env_file=None, **overrides):
                 os.path.dirname(frame.f_back.f_code.co_filename),
                 '.env'
             )
+            env_file = os.environ.get('ENV_FILE') or env_file
             if not os.path.exists(env_file):
                 logger.info(
                     "%s doesn't exist - if you're not configuring your "

diff --git a/tests/test_env.py b/tests/test_env.py
@@ -351,3 +351,18 @@ class MyEnv(Env):
 
     def test_singleton_environ(self):
         assert self.CONFIG is self.env.ENVIRON
+
+
+class FileEnvByEnvVarTests(TestEnv):
+
+    def setup_method(self, method):
+        super(FileEnvByEnvVarTests, self).setUp()
+        with open('./tmp/test_env.txt') as env_file:
+            env_file.writeline('VAR=TEST')
+        Env.ENVIRON = {}
+        os.environ['ENV_FILE'] = './tmp/test_env.txt'
+        self.env = Env()
+
+    def test_read_env(self):
+        assert_type_and_value(str, 'TEST', self.env('VAR'))
+