#!/bin/bash
# In short, this provisions a Zulip development environment and then
# builds a Zulip release tarball (the same way we build them for an
# actual release).  The actual test job will then install that.
#
# This script is more complicated than that, basically because Travis
# CI installs a ton of crap in its build workers, and we need to
# remove some and reconfigure others to make things run smoothly and
# quickly.
#
# More description in https://zulip.readthedocs.io/en/latest/events-system.html.
set -e
set -x

# Make /home/travis world-readable so the `zulip` user will be able to
# read it, since that's where we store our caches.
sudo chmod a+rX /home/travis

# Uninstall the unnecessary extra versions of postgres that Travis CI
# installs since if we don't do this, doing apt upgrades can fail due
# to conflicts over which version of postgres should be running.
sudo apt-get remove postgresql-9.2 postgresql-client-9.2 postgresql-contrib-9.2 postgresql-9.4 postgresql-client-9.4 postgresql-9.5  postgresql-contrib-9.5 postgresql-client-9.5 postgresql-9.6 postgresql-contrib-9.6 postgresql-client-9.6 -y

# Remove some of Travis's' stupid extra sources.list files
sudo rm -f /etc/apt/sources.list.d/mongodb*.list

# Provisioning may fail due to many issues but most of the times a network
# connection issue is the reason. So we are going to retry entire provisioning
# once again if that fixes our problem.
if ! tools/provision --production-travis; then
    echo "\`provision\`: Something went wrong with the provisioning, might be a network issue, Retrying to provision..."
    tools/provision --production-travis
fi

cp -a tools/travis/success-http-headers.txt ~/
source tools/travis/activate-venv

# Force OpenJDK 8 JRE. This is a workaround for Travis CI having
# broken their java install, but also nicely provides consistency.
sudo ln -nsf /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java /usr/bin/java

if ! env TRAVIS=1 ./tools/build-release-tarball travis; then
    echo "Attempting to output failure logging data"
    cat /tmp/tmp.*/update-prod-static.log || true
    exit 1
fi
mv /tmp/tmp.*/zulip-server-travis.tar.gz ./


# Shut down all services so that restarting postgres and rebuilding
# the postgres database to match the prod installation setup will work.
sudo supervisorctl stop all
# Clear memcached to avoid contamination between development and prod
# environments.
sudo /etc/init.d/memcached restart

# Drop any open connections to the development postgres installation.
sudo "$(dirname "$0")/../../scripts/setup/terminate-psql-sessions" postgres zulip zulip_base

# Remove and recreate the postgres database
sudo pg_ctlcluster 9.3 main stop
sudo pg_dropcluster 9.3 main
sudo rm -rf /etc/postgresql/9.3/main /var/lib/postgresql/9.3/main
sudo pg_createcluster 9.3 main