OP-2813 - fix for rendering single file from AE in DL

Solves issue with rendering .mov or .avi file.
Added test cae for collect_frames

openpype/lib/delivery.py

@@ -13,18 +13,30 @@ def collect_frames(files):
         Uses clique as most precise solution
 
         Args:
-            files(list): list of source paths
+            files(list) or (set with single value): list of source paths
         Returns:
             (dict): {'/asset/subset_v001.0001.png': '0001', ....}
     """
     collections, remainder = clique.assemble(files, minimum_items=1)
 
+    real_file_name = None
+    if len(files) == 1:
+        real_file_name = list(files)[0]
+
     sources_and_frames = {}
     if collections:
         for collection in collections:
             src_head = collection.head
             src_tail = collection.tail
 
+            if src_head.endswith("_v"):
+                # print("Collection gathered incorrectly, not a sequence "
+                #       "just a version found in {}".format(files))
+                if len(collections) > 1:
+                    continue
+                else:
+                    return {real_file_name: None}
+
             for index in collection.indexes:
                 src_frame = collection.format("{padding}") % index
                 src_file_name = "{}{}{}".format(src_head, src_frame,
@@ -71,14 +83,15 @@ def path_from_representation(representation, anatomy):
 
 def copy_file(src_path, dst_path):
     """Hardlink file if possible(to save space), copy if not"""
-    from openpype.lib import create_hard_link  # safer importing
+    from avalon.vendor import filelink  # safer importing
 
     if os.path.exists(dst_path):
         return
     try:
-        create_hard_link(
+        filelink.create(
             src_path,
-            dst_path
+            dst_path,
+            filelink.HARDLINK
         )
     except OSError:
         shutil.copyfile(src_path, dst_path)

openpype/modules/deadline/plugins/publish/submit_publish_job.py

@@ -599,6 +599,7 @@ class ProcessSubmittedJobOnFarm(pyblish.api.InstancePlugin):
                 "files": os.path.basename(remainder),
                 "stagingDir": os.path.dirname(remainder),
             }
+            representations.append(rep)
             if "render" in instance.get("families"):
                 rep.update({
                     "fps": instance.get("fps"),

tests/unit/openpype/lib/test_delivery.py

@@ -0,0 +1,57 @@
+# -*- coding: utf-8 -*-
+"""Test suite for delivery functions."""
+from openpype.lib.delivery import collect_frames
+
+
+def test_collect_frames_multi_sequence():
+    files = ["Asset_renderCompositingMain_v001.0000.png",
+             "Asset_renderCompositingMain_v001.0001.png",
+             "Asset_renderCompositingMain_v001.0002.png"]
+    ret = collect_frames(files)
+
+    expected = {
+        "Asset_renderCompositingMain_v001.0000.png": "0000",
+        "Asset_renderCompositingMain_v001.0001.png": "0001",
+        "Asset_renderCompositingMain_v001.0002.png": "0002"
+    }
+
+    print(ret)
+    assert ret == expected, "Not matching"
+
+
+def test_collect_frames_single_sequence():
+    files = ["Asset_renderCompositingMain_v001.0000.png"]
+    ret = collect_frames(files)
+
+    expected = {
+        "Asset_renderCompositingMain_v001.0000.png": "0000"
+    }
+
+    print(ret)
+    assert ret == expected, "Not matching"
+
+
+def test_collect_frames_single_sequence_as_dict():
+    files = {"Asset_renderCompositingMain_v001.0000.png"}
+    ret = collect_frames(files)
+
+    expected = {
+        "Asset_renderCompositingMain_v001.0000.png": "0000"
+    }
+
+    print(ret)
+    assert ret == expected, "Not matching"
+
+
+def test_collect_frames_single_file():
+    files = {"Asset_renderCompositingMain_v001.png"}
+    ret = collect_frames(files)
+
+    expected = {
+        "Asset_renderCompositingMain_v001.png": None
+    }
+
+    print(ret)
+    assert ret == expected, "Not matching"
+
+