zulip/scripts/setup/postgres-init-db

52 lines
1.4 KiB
Plaintext
Raw Normal View History

#!/bin/bash
set -e
set -x
# What user should we use for connecting to the database
POSTGRES_USER="${POSTGRES_USER:-postgres}"
# We pipe this output through cat to ensure we always get return code 0
# We have to do this because on production database zulip may not exist, so psql
# will fail with return code 2. Because set -e is on, this will cause the script
# to bail.
records=`su "$POSTGRES_USER" -c "psql -Atc 'SELECT COUNT(*) FROM zulip.zerver_message;' zulip" | cat`
if [[ $records -gt 200 ]]
then
set +x
echo "WARNING: This will delete your Zulip database which currently contains $records messages."
read -p "Do you want to proceed? " -n 1 -r
echo
if [[ ! $REPLY =~ ^[Yy]$ ]]
then
exit 1
fi
set -x
fi
# Shut down all services to ensure a quiescent state.
if [ -e "/var/run/supervisor.sock" ]; then
supervisorctl stop all
fi
# Drop any open connections to any old database. Hackishly call using
# `source`, because postgres user may not be able to read this directory
# if unpacked by root.
source "$(dirname "$0")/terminate-psql-sessions" postgres zulip zulip_base
(
# Make sure the current working directory is readable by postgres
cd /
su "$POSTGRES_USER" -c psql <<EOF
DROP DATABASE IF EXISTS zulip;
EOF
"$(dirname "$0")/postgres-create-db"
)
# Clear memcached to avoid contamination from previous database state
"$(dirname "$0")/flush-memcached"
echo "Database created"