X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/bdb92619b5f6d920119b8c32c3027cf4b751ed16..954b101b542b59ba76885c123a64b9fbf55b3c41:/sdk/python/arvados/commands/arv_copy.py

diff --git a/sdk/python/arvados/commands/arv_copy.py b/sdk/python/arvados/commands/arv_copy.py
index 1f72635406..5c5192860c 100755
--- a/sdk/python/arvados/commands/arv_copy.py
+++ b/sdk/python/arvados/commands/arv_copy.py
@@ -33,6 +33,7 @@ import arvados.keep
 import arvados.util
 import arvados.commands._util as arv_cmd
 import arvados.commands.keepdocker
+import ruamel.yaml as yaml
 
 from arvados.api import OrderedJsonModel
 from arvados._version import __version__
@@ -112,7 +113,7 @@ def main():
     copy_opts.set_defaults(recursive=True)
 
     parser = argparse.ArgumentParser(
-        description='Copy a pipeline instance, template or collection from one Arvados instance to another.',
+        description='Copy a pipeline instance, template, workflow, or collection from one Arvados instance to another.',
         parents=[copy_opts, arv_cmd.retry_opt])
     args = parser.parse_args()
 
@@ -144,6 +145,9 @@ def main():
         set_src_owner_uuid(src_arv.pipeline_templates(), args.object_uuid, args)
         result = copy_pipeline_template(args.object_uuid,
                                         src_arv, dst_arv, args)
+    elif t == 'Workflow':
+        set_src_owner_uuid(src_arv.workflows(), args.object_uuid, args)
+        result = copy_workflow(args.object_uuid, src_arv, dst_arv, args)
     else:
         abort("cannot copy object {} of type {}".format(args.object_uuid, t))
 
@@ -405,6 +409,64 @@ def copy_pipeline_template(pt_uuid, src, dst, args):
 
     return dst.pipeline_templates().create(body=pt, ensure_unique_name=True).execute(num_retries=args.retries)
 
+# copy_workflow(wf_uuid, src, dst, args)
+#
+#    Copies a workflow identified by wf_uuid from src to dst.
+#
+#    If args.recursive is True, also copy any collections
+#      referenced in the workflow definition yaml.
+#
+#    The owner_uuid of the new workflow is set to any given
+#      project_uuid or the user who copied the template.
+#
+#    Returns the copied workflow object.
+#
+def copy_workflow(wf_uuid, src, dst, args):
+    # fetch the workflow from the source instance
+    wf = src.workflows().get(uuid=wf_uuid).execute(num_retries=args.retries)
+
+    # copy collections and docker images
+    if args.recursive:
+        wf_def = yaml.safe_load(wf["definition"])
+        if wf_def is not None:
+            locations = []
+            docker_images = {}
+            graph = wf_def.get('$graph', None)
+            if graph is not None:
+                workflow_collections(graph, locations, docker_images)
+            else:
+                workflow_collections(wf_def, locations, docker_images)
+
+            if locations:
+                copy_collections(locations, src, dst, args)
+
+            for image in docker_images:
+                copy_docker_image(image, docker_images[image], src, dst, args)
+
+    # copy the workflow itself
+    del wf['uuid']
+    wf['owner_uuid'] = args.project_uuid
+    return dst.workflows().create(body=wf).execute(num_retries=args.retries)
+
+def workflow_collections(obj, locations, docker_images):
+    if isinstance(obj, dict):
+        loc = obj.get('location', None)
+        if loc is not None:
+            if loc.startswith("keep:"):
+                locations.append(loc[5:])
+
+        docker_image = obj.get('dockerImageId', None) or obj.get('dockerPull', None)
+        if docker_image is not None:
+            ds = docker_image.split(":", 1)
+            tag = ds[1] if len(ds)==2 else 'latest'
+            docker_images[ds[0]] = tag
+
+        for x in obj:
+            workflow_collections(obj[x], locations, docker_images)
+    elif isinstance(obj, list):
+        for x in obj:
+            workflow_collections(x, locations, docker_images)
+
 # copy_collections(obj, src, dst, args)
 #
 #    Recursively copies all collections referenced by 'obj' from src