Source dotenv files in entrypoint.sh instead of with python-dotenv.

We need them in the shell to derive the database name, at least.

icekit/bin/entrypoint.sh

@@ -8,6 +8,15 @@ EOF
 
 set -e
 
+# Source dotenv files.
+set -o allexport
+for filename in ".env.$DOTENV" .env.local; do
+    if [[ -f "$ICEKIT_PROJECT_DIR/$filename" ]]; then
+        source "$ICEKIT_PROJECT_DIR/$filename"
+    fi
+done
+set +o allexport
+
 if [[ -n "${DOCKER+1}" ]]; then
     # In our Docker image, the only system site packages are the ones that we
     # have installed, so we do not need a virtualenv for isolation. Using an

icekit/project/settings/calculated.py

@@ -1,18 +1,9 @@
-import dotenv
 import importlib
 import os
 import sys
 
 from icekit.utils.sequences import dedupe_and_sort
 
-# Load local dotenv file.
-dotenv.load_dotenv(os.path.join(
-    os.environ['ICEKIT_PROJECT_DIR'], '.env.local'))
-
-# Load environment specific dotenv file.
-dotenv.load_dotenv(os.path.join(
-    os.environ['ICEKIT_PROJECT_DIR'], '.env.%s' % os.environ.get('DOTENV')))
-
 # Emulate `from ... import *` with base settings module from environment.
 BASE_SETTINGS_MODULE = os.environ.setdefault('BASE_SETTINGS_MODULE', 'base')
 print '# BASE_SETTINGS_MODULE: %s' % BASE_SETTINGS_MODULE

setup.py

@@ -70,7 +70,6 @@ def find_packages(*paths):
         'html5lib==0.999',
         'nltk',
         'Pillow',
-        'python-dotenv',
         'requests',
         'unidecode',
     ],