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#!/bin/sh
# file : etc/pgctl
# copyright : Copyright (c) 2014-2015 Code Synthesis Ltd
# license : MIT; see accompanying LICENSE file
#
# Designed to simplify controlling brep PostgreSQL server instance.
. `dirname $0`/config
cmd="$1"
# Print usage description and exit.
#
case $cmd in
init|start|stop|status|connect) ;;
*)
echo "Usage: pgctl (init|start|stop|status|connect)"
exit 1
;;
esac
ERROR=0
# Initilization includes creating PostgreSQL DB cluster, creating and
# populating brep DB.
#
if test "$cmd" = "init"; then
if test -d "$PG_DATA_DIR"; then
echo "PostgreSQL DB cluster directory $PG_DATA_DIR already exist"
else
echo "creating PostgreSQL DB cluster ..."
pg_ctl initdb -D "$PG_DATA_DIR"
ERROR=$?
if test $ERROR -eq 0; then
echo "cluster created"
else
echo "cluster creating failed"
exit $ERROR;
fi
fi
fi
case $cmd in
start|init)
# Start DB server if not running yet.
#
pg_ctl status -D "$PG_DATA_DIR" 1>/dev/null 2>&1
if test $? -eq 0; then
echo "PostgreSQL server already running"
else
if test ! -d "$PG_DATA_DIR"; then
echo "PostgreSQL DB cluster not exist; run '$0 init' first"
exit 1
fi
echo "PostgreSQL server starting ..."
mkdir -p `dirname $PG_OUT_FILE`
mkdir -p "$PG_LOG_DIR"
mkdir -p "$PG_SOCKET_DIR"
pg_ctl start -D "$PG_DATA_DIR" -w -o \
"-c port=$PG_PORT -c unix_socket_directories=$PG_SOCKET_DIR \
-c logging_collector=on -c log_directory=$PG_LOG_DIR" \
1>"$PG_OUT_FILE" 2>&1
ERROR=$?
if test $ERROR -eq 0; then
echo "server started"
else
cat "$PG_OUT_FILE" 1>&2
echo "server starting failed"
exit $ERROR
fi
fi
;;
status)
echo "checking PostgreSQL server status ..."
pg_ctl status -D "$PG_DATA_DIR"
;;
stop)
pg_ctl status -D "$PG_DATA_DIR" 1>/dev/null 2>&1
if test $? -eq 0; then
echo "PostgreSQL server stopping ..."
pg_ctl stop -D "$PG_DATA_DIR"
ERROR=$?
if test $ERROR -eq 0; then
: # pg_ctl prints "server stopped" on success
else
echo "server stopping failed"
exit $ERROR
fi
else
echo "PostgreSQL server not running"
fi
;;
connect)
echo "connecting to PostgreSQL server ..."
psql --host=$PG_SOCKET_DIR --port=$PG_PORT brep
;;
esac
if test "$cmd" = "init"; then
# Create brep DB if not exist.
#
psql --host=$PG_SOCKET_DIR --port=$PG_PORT -c "" brep \
1>>"$PG_OUT_FILE" 2>&1
ERROR=$?
if test $ERROR -eq 0; then
echo "brep DB already exist"
else
if test $ERROR -eq 2; then
echo "creating brep DB ..."
createdb --host=$PG_SOCKET_DIR --port=$PG_PORT brep
ERROR=$?
if test $ERROR -eq 0; then
echo "brep DB created"
else
echo "brep DB creating failed"
exit $ERROR;
fi
else
echo "brep DB existence checking failed"
exit $ERROR;
fi
fi
# Populate brep DB if required.
# psql --host=$PG_SOCKET_DIR --port=$PG_PORT -c "select count(1) ..." brep \
# 1>>"$PG_OUT_FILE" 2>&1
# ...
fi
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