--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/env/lib/python3.7/site-packages/planemo/mulled.py	Thu May 14 14:56:58 2020 -0400
@@ -0,0 +1,67 @@
+"""Planemo specific utilities for dealing with mulled containers.
+
+The extend galaxy-tool-util's features with planemo specific idioms.
+"""
+from __future__ import absolute_import
+
+import os
+
+from galaxy.tool_util.deps.mulled.mulled_build import (
+    DEFAULT_CHANNELS,
+    ensure_installed,
+    InvolucroContext,
+)
+from galaxy.tool_util.deps.mulled.util import build_target
+
+from planemo.conda import collect_conda_target_lists
+from planemo.io import shell
+
+
+def conda_to_mulled_targets(conda_targets):
+    return list(map(lambda c: build_target(c.package, c.version), conda_targets))
+
+
+def collect_mulled_target_lists(ctx, paths, recursive=False):
+    return list(map(conda_to_mulled_targets, collect_conda_target_lists(ctx, paths, recursive=recursive)))
+
+
+def build_involucro_context(ctx, **kwds):
+    """Build a galaxy-tool-util InvolucroContext tailored to planemo use.
+
+    Using planemo's common command-line/global config options.
+    """
+    involucro_path_default = os.path.join(ctx.workspace, "involucro")
+    involucro_path = kwds.get("involucro_path", involucro_path_default)
+    use_planemo_shell = kwds.get("use_planemo_shell_exec", True)
+    shell_exec = shell if use_planemo_shell else None
+    involucro_context = InvolucroContext(involucro_bin=involucro_path,
+                                         shell_exec=shell_exec)
+    if not ensure_installed(involucro_context, True):
+        raise Exception("Failed to install involucro for Planemo.")
+    return involucro_context
+
+
+def build_mull_target_kwds(ctx, **kwds):
+    """Adapt Planemo's CLI and workspace configuration to galaxy-tool-util's mulled_build options."""
+    involucro_context = build_involucro_context(ctx, **kwds)
+    channels = kwds.get("conda_ensure_channels", ",".join(DEFAULT_CHANNELS))
+    namespace = kwds.get("mulled_namespace", "biocontainers")
+    target_kwds = {
+        'involucro_context': involucro_context,
+        'channels': channels.split(","),
+        'namespace': namespace,
+        'verbose': ctx.verbose,
+    }
+
+    conda_version = kwds.get("mulled_conda_version", None)
+    if conda_version is not None:
+        target_kwds["conda_version"] = conda_version
+    return target_kwds
+
+
+__all__ = (
+    "build_involucro_context",
+    "build_mull_target_kwds",
+    "collect_mulled_target_lists",
+    "conda_to_mulled_targets",
+)