fix virtualenv initialization

Author: funbringer

Dockerfile.tmpl

@@ -10,13 +10,12 @@ RUN if [ "${PYTHON_VERSION}" = "3" ] ; then \
 ENV LANG=C.UTF-8
 
 RUN mkdir -p /pg
-VOLUME /pg
 COPY run_tests.sh /run.sh
 RUN chmod 755 /run.sh
 
 ADD . /pg/testgres
 WORKDIR /pg/testgres
-RUN chown postgres:postgres /pg/testgres
+RUN chown -R postgres:postgres /pg
 
 USER postgres
 ENTRYPOINT PYTHON=${PYTHON} /run.sh

run_tests.sh

@@ -13,15 +13,17 @@ else
 fi
 
 # prepare environment
-echo using $virtualenv
+cd ..
 $virtualenv env
+export VIRTUAL_ENV_DISABLE_PROMPT=1
 source env/bin/activate
+cd -
 
 # install utilities
 $pip install coverage codecov flake8
 
 # install testgres
-$pip install -U .
+$pip install .
 
 # test code quality
 flake8 .