From e78c769eba02148454a5e86f4cd4c3c7968e1663 Mon Sep 17 00:00:00 2001
From: Chris Holdgraf <choldgraf@berkeley.edu>
Date: Wed, 29 Nov 2017 13:40:45 -0800
Subject: [PATCH] verbose env update

---
 repo2docker/detectors.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/repo2docker/detectors.py b/repo2docker/detectors.py
index acd72a3b..96b88c09 100644
--- a/repo2docker/detectors.py
+++ b/repo2docker/detectors.py
@@ -562,7 +562,7 @@ class CondaBuildPack(BuildPack):
             assembly_scripts.append((
                 '${NB_USER}',
                 r"""
-                conda env update -n root -f "{}" && \
+                conda env update -v -n root -f "{}" && \
                 conda clean -tipsy
                 """.format(environment_yml)
             ))