From 7dd41cdc4b889ead17451acfa66d661b99628670 Mon Sep 17 00:00:00 2001
From: Matt McCormick <matt.mccormick@kitware.com>
Date: Sat, 10 Jun 2017 13:37:36 -0400
Subject: [PATCH] common: work around overlay storage backend pip uninstall

Addresses:

  Collecting pip
  Downloading pip-9.0.1-py2.py3-none-any.whl (1.3MB)
Collecting wheel
  Downloading wheel-0.29.0-py2.py3-none-any.whl (66kB)
Installing collected packages: pip, wheel
  Found existing installation: pip 1.5.6
    Uninstalling pip-1.5.6:
Exception:
Traceback (most recent call last):
  File "/tmp/tmpqu31Wp/pip.zip/pip/basecommand.py", line 215, in main
    status = self.run(options, args)
  File "/tmp/tmpqu31Wp/pip.zip/pip/commands/install.py", line 342, in run
    prefix=options.prefix_path,
  File "/tmp/tmpqu31Wp/pip.zip/pip/req/req_set.py", line 778, in install
    requirement.uninstall(auto_confirm=True)
  File "/tmp/tmpqu31Wp/pip.zip/pip/req/req_install.py", line 754, in uninstall
    paths_to_remove.remove(auto_confirm)
  File "/tmp/tmpqu31Wp/pip.zip/pip/req/req_uninstall.py", line 115, in remove
    renames(path, new_path)
  File "/tmp/tmpqu31Wp/pip.zip/pip/utils/__init__.py", line 267, in renames
    shutil.move(old, new)
  File "/usr/lib/python2.7/shutil.py", line 300, in move
    rmtree(src)
  File "/usr/lib/python2.7/shutil.py", line 247, in rmtree
    rmtree(fullname, ignore_errors, onerror)
  File "/usr/lib/python2.7/shutil.py", line 256, in rmtree
    onerror(os.rmdir, path, sys.exc_info())
  File "/usr/lib/python2.7/shutil.py", line 254, in rmtree
    os.rmdir(path)
  OSError: [Errno 39] Directory not empty: '/usr/lib/python2.7/dist-packages/pip/backwardcompat'

when Docker is using the overlay fs backend. See:

  https://github.com/moby/moby/issues/12327
---
 common.docker | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/common.docker b/common.docker
index d808f8a..10c8d1e 100644
--- a/common.docker
+++ b/common.docker
@@ -32,11 +32,11 @@ RUN if [ -e /opt/python/cp35-cp35m/bin/python ]; then \
     : nothing to do here since it is updated by manylinux-common/install-python-packages.sh ; \
   else \
     wget https://bootstrap.pypa.io/get-pip.py && \
-    python get-pip.py && \
+    python get-pip.py --ignore-installed && \
     rm get-pip.py || exit 1; \
   fi
 
-RUN $([ -e /opt/python/cp35-cp35m/bin/python ] && echo "/opt/python/cp35-cp35m/bin/python" || echo "python") -m pip install conan
+RUN $([ -e /opt/python/cp35-cp35m/bin/python ] && echo "/opt/python/cp35-cp35m/bin/python" || echo "python") -m pip install --ignore-installed conan
 
 RUN echo "root:root" | chpasswd
 WORKDIR /work