contrib/docker/ubuntu-trusty

tests: stop direct symbol import of mercurial modules in test-status-inprocess

FROM ubuntu:trusty
RUN apt-get update && apt-get install -y \
  build-essential \
  debhelper \
  dh-python \
  devscripts \
  python \
  python-all-dev \
  python-docutils \
  zip \
  unzip