Support backwards compat

Author: ericholscher

readthedocs/doc_builder/constants.py

@@ -4,11 +4,14 @@
 from __future__ import (
     absolute_import, division, print_function, unicode_literals)
 
+import logging
 import os
 import re
 
 from django.conf import settings
 
+log = logging.getLogger(__name__)
+
 SPHINX_TEMPLATE_DIR = os.path.join(
     settings.SITE_ROOT,
     'readthedocs',
@@ -35,6 +38,11 @@
 DOCKER_IMAGE = getattr(settings, 'DOCKER_IMAGE', 'readthedocs/build:2.0')
 DOCKER_IMAGE_SETTINGS = getattr(settings, 'DOCKER_IMAGE_SETTINGS', {})
 
+old_config = getattr(settings, 'DOCKER_BUILD_IMAGES', None)
+if old_config:
+    log.warning('Old config detected, DOCKER_BUILD_IMAGES->DOCKER_IMAGE_SETTINGS')
+    DOCKER_IMAGE_SETTINGS.update(old_config)
+
 DOCKER_LIMITS = {'memory': '200m', 'time': 600}
 DOCKER_LIMITS.update(getattr(settings, 'DOCKER_LIMITS', {}))