11095: Add arv:ReuseRequirement hint. Update tests & documentation.

[arvados.git] / sdk / cwl / arvados_cwl / arvcontainer.py

diff --git a/sdk/cwl/arvados_cwl/arvcontainer.py b/sdk/cwl/arvados_cwl/arvcontainer.py
index b58a858c8d40775c227038ddb3fe43665b851b3c..bf4aab52fb4b637d2e48161422828f5f5545a021 100644 (file)
--- a/sdk/cwl/arvados_cwl/arvcontainer.py
+++ b/sdk/cwl/arvados_cwl/arvcontainer.py
@@ -184,9 +184,15 @@ class ArvadosContainer(object):
         container_request["output_ttl"] = self.output_ttl
         container_request["mounts"] = mounts
         container_request["runtime_constraints"] = runtime_constraints
-        container_request["use_existing"] = kwargs.get("enable_reuse", True)
         container_request["scheduling_parameters"] = scheduling_parameters
 
+        enable_reuse = kwargs.get("enable_reuse", True)
+        if enable_reuse:
+            reuse_req, _ = get_feature(self, "http://arvados.org/cwl#ReuseRequirement")
+            if reuse_req:
+                enable_reuse = reuse_req["enableReuse"]
+        container_request["use_existing"] = enable_reuse
+
         if kwargs.get("runnerjob", "").startswith("arvwf:"):
             wfuuid = kwargs["runnerjob"][6:kwargs["runnerjob"].index("#")]
             wfrecord = self.arvrunner.api.workflows().get(uuid=wfuuid).execute(num_retries=self.arvrunner.num_retries)