cli.py: Allow push to handle artifact refs

This patch extends support for bst artifact push so that is now
able to handle artifact refs.

If --deps all is selected and a ref is given, BuildStream will
error.

2 files changed, 7 insertions, 6 deletions

diff --git a/src/buildstream/_frontend/cli.py b/src/buildstream/_frontend/cli.py
index e5325934c..c492254ce 100644
--- a/src/buildstream/_frontend/cli.py
+++ b/src/buildstream/_frontend/cli.py
@@ -1180,10 +1180,10 @@ def artifact_pull(app, elements, deps, remote):
               help='The dependencies to push')
 @click.option('--remote', '-r', default=None,
               help="The URL of the remote cache (defaults to the first configured cache)")
-@click.argument('elements', nargs=-1,
+@click.argument('artifacts', nargs=-1,
                 type=click.Path(readable=False))
 @click.pass_obj
-def artifact_push(app, elements, deps, remote):
+def artifact_push(app, artifacts, deps, remote):
     """Push a built artifact to a remote artifact cache.
 
     Specifying no elements will result in pushing the default targets
@@ -1209,12 +1209,12 @@ def artifact_push(app, elements, deps, remote):
     with app.initialized(session_name="Push"):
         ignore_junction_targets = False
 
-        if not elements:
-            elements = app.project.get_default_targets()
+        if not artifacts:
+            artifacts = app.project.get_default_targets()
             # Junction elements cannot be pushed, exclude them from default targets
             ignore_junction_targets = True
 
-        app.stream.push(elements, selection=deps, remote=remote,
+        app.stream.push(artifacts, selection=deps, remote=remote,
                         ignore_junction_targets=ignore_junction_targets)
 
 
diff --git a/src/buildstream/_stream.py b/src/buildstream/_stream.py
index f0e891dcf..5d5c355b1 100644
--- a/src/buildstream/_stream.py
+++ b/src/buildstream/_stream.py
@@ -455,7 +455,8 @@ class Stream():
                                  selection=selection,
                                  ignore_junction_targets=ignore_junction_targets,
                                  use_artifact_config=use_config,
-                                 artifact_remote_url=remote)
+                                 artifact_remote_url=remote,
+                                 load_refs=True)
 
         if not self._artifacts.has_push_remotes():
             raise StreamError("No artifact caches available for pushing artifacts")