_artifactcache.py: Add remote support to bst artifact show

If remotes exist, each remote will be checked for the target
artifacts. If an artifact is cached remotely, we make a
record of this.

1 files changed, 12 insertions, 0 deletions

diff --git a/src/buildstream/_pipeline.py b/src/buildstream/_pipeline.py
index 7cf4abbe3..4b0c6ad94 100644
--- a/src/buildstream/_pipeline.py
+++ b/src/buildstream/_pipeline.py
@@ -154,6 +154,18 @@ class Pipeline():
                 # dependencies.
                 element._update_ready_for_runtime_and_cached()
 
+    # check_remotes()
+    #
+    # Check if the target artifact is cached in any of the available remotes
+    #
+    # Args:
+    #    targets (list [Element]): The list of element targets
+    #
+    def check_remotes(self, targets):
+        with self._context.messenger.timed_activity("Querying remotes for cached status", silent_nested=True):
+            for element in targets:
+                element._cached_remotely()
+
     # dependencies()
     #
     # Generator function to iterate over elements and optionally