X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/f72b0e8bcc350966ce54954711bed538c527eb00..d182d19257f6cbe71fd75c29e1a81ba59a2aa79c:/sdk/cwl/arvados_cwl/__init__.py

diff --git a/sdk/cwl/arvados_cwl/__init__.py b/sdk/cwl/arvados_cwl/__init__.py
index 21d3019169..5bdffd5048 100644
--- a/sdk/cwl/arvados_cwl/__init__.py
+++ b/sdk/cwl/arvados_cwl/__init__.py
@@ -188,18 +188,16 @@ class ArvCwlRunner(object):
                 srccollections[srccollection] = arvados.collection.CollectionReader(srccollection)
             reader = srccollections[srccollection]
             try:
-                final.copy("/".join(sp[1:]), v.target, source_collection=reader, overwrite=False)
+                srcpath = "/".join(sp[1:]) if len(sp) > 1 else "."
+                final.copy(srcpath, v.target, source_collection=reader, overwrite=False)
             except IOError as e:
                 logger.warn("While preparing output collection: %s", e)
 
         def rewrite(fileobj):
             fileobj["location"] = generatemapper.mapper(fileobj["location"]).target
-            if "basename" in fileobj:
-                del fileobj["basename"]
-            if "size" in fileobj:
-                del fileobj["size"]
-            if "listing" in fileobj:
-                del fileobj["listing"]
+            for k in ("basename", "size", "listing"):
+                if k in fileobj:
+                    del fileobj[k]
 
         adjustDirObjs(outputObj, rewrite)
         adjustFileObjs(outputObj, rewrite)