#!/bin/sh -e

# @configure_input@

# Copyright (C) 2007 Noah Slater <nslater@bytesexual.org>.

# This file is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free Software
# Foundation; either version 2 of the License, or (at your option) any later
# version.

# This file is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
# details.

# You should have received a copy of the GNU General Public License along with
# this file; if not, write to the Free Software Foundation, Inc., 51
# Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

### BEGIN INIT INFO
# Provides:          couchdb
# Required-Start:    $local_fs $remote_fs
# Required-Stop:     $local_fs $remote_fs
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: CouchDB init script
# Description:       CouchDB init script for the database server.
### END INIT INFO

SCRIPT_OK=0
SCRIPT_ERROR=1

DESCRIPTION="database server"
NAME=couchdb
SCRIPT_NAME=$(basename $0)
COUCHDB=%bindir%/%couchdb_command_name%
CONFIGURATION_FILE=%sysconfdir%/default/couchdb
LSB_LIBRARY=/lib/lsb/init-functions

if test ! -x $COUCHDB; then
    exit $SCRIPT_ERROR
fi

if test -r $CONFIGURATION_FILE; then
    . $CONFIGURATION_FILE
fi

log_daemon_msg () {
    # Dummy function to be replaced by LSB library.

    echo $@
}

log_end_msg () {
    # Dummy function to be replaced by LSB library.

    if test "$1" != "0"; then
      echo "Error with $DESCRIPTION: $NAME"
    fi
    return $1
}

if test -r $LSB_LIBRARY; then
    . $LSB_LIBRARY
fi

start_couchdb () {
    # Start CouchDB as a background process.

    command="$COUCHDB -b"
    if test -n "$COUCHDB_INI_FILE"; then
        command="$command -c $COUCHDB_INI_FILE"
    fi
    if test -n "$COUCHDB_PID_FILE"; then
        command="$command -p $COUCHDB_PID_FILE"
    fi
    if test -n "$COUCHDB_STDOUT_FILE"; then
        command="$command -o $COUCHDB_STDOUT_FILE"
    fi
    if test -n "$COUCHDB_STDERR_FILE"; then
        command="$command -e $COUCHDB_STDERR_FILE"
    fi
    if test -n "$COUCHDB_USER"; then
        if test -n "$COUCHDB_PID_FILE"; then
            touch $COUCHDB_PID_FILE
            chown $COUCHDB_USER $COUCHDB_PID_FILE
        fi
        if su $COUCHDB_USER -c "$command" > /dev/null; then
            return $SCRIPT_OK
        else
            return $SCRIPT_ERROR
        fi
    else
        if $command > /dev/null; then
            return $SCRIPT_OK
        else
            return $SCRIPT_ERROR
        fi
    fi
}

stop_couchdb () {
    # Stop the running CouchDB process.

    command="$COUCHDB -d"
    if test -n "$COUCHDB_PID_FILE"; then
        command="$command -p $COUCHDB_PID_FILE"
    fi
    if test -n "$COUCHDB_USER"; then
        if su $COUCHDB_USER -c "$command" > /dev/null; then
            return $SCRIPT_OK
        else
            return $SCRIPT_ERROR
        fi
    else
        if $command > /dev/null; then
            return $SCRIPT_OK
        else
            return $SCRIPT_ERROR
        fi
    fi
}

display_status () {
    # Display the status of the running CouchDB process.

    $COUCHDB -s
}

parse_script_option_list () {
    # Parse arguments passed to the script and take appropriate action.

    case "$1" in
        start)
            log_daemon_msg "Starting $DESCRIPTION: $NAME"
            if start_couchdb; then
                log_end_msg $SCRIPT_OK
            else
                log_end_msg $SCRIPT_ERROR
            fi
            ;;
        stop)
            log_daemon_msg "Stopping $DESCRIPTION: $NAME"
            if stop_couchdb; then
                log_end_msg $SCRIPT_OK
            else
                log_end_msg $SCRIPT_ERROR
            fi
            ;;
        restart|force-reload)
            log_daemon_msg "Restarting $DESCRIPTION: $NAME"
            if stop_couchdb; then
                if start_couchdb; then
                    log_end_msg $SCRIPT_OK
                else
                    log_end_msg $SCRIPT_ERROR
                fi
            else
                log_end_msg $SCRIPT_ERROR
            fi
            ;;
        status)
            display_status
            ;;
        *)
            cat << EOF >&2
Usage: $SCRIPT_NAME {start|stop|restart|force-reload|status}
EOF
            exit $SCRIPT_ERROR
            ;;
    esac
}

parse_script_option_list $@