1 files changed, 16 insertions, 0 deletions
diff --git a/shard/lib/manager.ex b/shard/lib/manager.ex
index 9def229..d6b493b 100644
--- a/shard/lib/manager.ex
+++ b/shard/lib/manager.ex
@@ -213,6 +213,22 @@ defmodule Shard.Manager do
   end
 
   @doc"""
+  Returns the pid for a shard defined by its manifest.
+  Start it if it doesn't exist.
+  """
+  def find_or_start(manifest) do
+    id = SData.term_hash manifest
+    case find_proc id do
+      nil ->
+        case Shard.Manifest.start manifest do
+          {:ok, pid} -> pid
+          {:error, :redundant} -> find_proc id
+        end
+      pid -> pid
+    end
+  end
+
+  @doc"""
   Return the list of all shards.
   """
   def list_shards() do