--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/env/lib/python3.7/site-packages/planemo/database/factory.py	Thu May 14 14:56:58 2020 -0400
@@ -0,0 +1,33 @@
+"""Create a DatabaseSource from supplied planemo configuration."""
+from galaxy.tool_util.deps.commands import which
+
+from .postgres import LocalPostgresDatabaseSource
+from .postgres_docker import DockerPostgresDatabaseSource
+
+
+def create_database_source(**kwds):
+    """Return a :class:`planemo.database.DatabaseSource` for configuration."""
+    database_type = kwds.get("database_type", "auto")
+    if database_type == "auto":
+        if which("psql"):
+            database_type = "postgres"
+        elif which("docker"):
+            database_type = "postgres_docker"
+        else:
+            raise Exception("Cannot find executables for psql or docker, cannot configure a database source.")
+
+    if database_type == "postgres":
+        return LocalPostgresDatabaseSource(**kwds)
+    elif database_type == "postgres_docker":
+        return DockerPostgresDatabaseSource(**kwds)
+    # TODO
+    # from .sqlite import SqliteDatabaseSource
+    # elif database_type == "sqlite":
+    #     return SqliteDatabaseSource(**kwds)
+    else:
+        raise Exception("Unknown database type [%s]." % database_type)
+
+
+__all__ = (
+    "create_database_source",
+)