Remove deprecation path for ImageOperation.run methods that don't accept env

wagtail/wagtailimages/models.py

@@ -1,7 +1,6 @@
 from __future__ import absolute_import, unicode_literals
 
 import hashlib
-import inspect
 import os.path
 import warnings
 from collections import OrderedDict
@@ -25,7 +24,7 @@ from taggit.managers import TaggableManager
 from unidecode import unidecode
 from willow.image import Image as WillowImage
 
-from wagtail.utils.deprecation import RemovedInWagtail19Warning, RemovedInWagtail110Warning
+from wagtail.utils.deprecation import RemovedInWagtail110Warning
 from wagtail.wagtailadmin.utils import get_object_usage
 from wagtail.wagtailcore import hooks
 from wagtail.wagtailcore.models import CollectionMember
@@ -404,24 +403,7 @@ class Filter(models.Model):
                 'original-format': original_format,
             }
             for operation in self.operations:
-                # Check that the operation can take the "env" argument
-                try:
-                    inspect.getcallargs(operation.run, willow, image, env)
-                    accepts_env = True
-                except TypeError:
-                    # Check that the paramters fit the old style, so we don't
-                    # raise a warning if there is a coding error
-                    inspect.getcallargs(operation.run, willow, image)
-                    accepts_env = False
-                    warnings.warn("ImageOperation run methods should take 4 "
-                                  "arguments. %d.run only takes 3.",
-                                  RemovedInWagtail19Warning)
-
-                # Call operation
-                if accepts_env:
-                    willow = operation.run(willow, image, env) or willow
-                else:
-                    willow = operation.run(willow, image) or willow
+                willow = operation.run(willow, image, env) or willow
 
             # Find the output format to use
             if 'output-format' in env:

wagtail/wagtailimages/tests/test_image_operations.py

@@ -1,12 +1,9 @@
 from __future__ import absolute_import, unicode_literals
 
-import warnings
-
 from django.test import TestCase, override_settings
 from django.utils.six import BytesIO
 from mock import Mock, patch
 
-from wagtail.utils.deprecation import RemovedInWagtail19Warning
 from wagtail.wagtailcore import hooks
 from wagtail.wagtailimages import image_operations
 from wagtail.wagtailimages.exceptions import InvalidFilterSpecError
@@ -417,33 +414,6 @@ class TestFilter(TestCase):
 
         self.assertEqual(run_mock.call_count, 2)
 
-    def test_runs_operations_without_env_argument(self):
-        # The "env" argument was added in Wagtail 1.5. This tests that
-        # image operations written for 1.4 will still work
-
-        run_mock = Mock()
-
-        def run(willow, image):
-            run_mock(willow, image)
-
-        self.operation_instance.run = run
-
-        fil = Filter(spec='operation1|operation2')
-        image = Image.objects.create(
-            title="Test image",
-            file=get_test_image_file(),
-        )
-
-        with warnings.catch_warnings(record=True) as ws:
-            warnings.simplefilter('always')
-
-            fil.run(image, BytesIO())
-
-            self.assertEqual(len(ws), 2)
-            self.assertIs(ws[0].category, RemovedInWagtail19Warning)
-
-        self.assertEqual(run_mock.call_count, 2)
-
 
 @hooks.register('register_image_operations')
 def register_image_operations():