Jekyll init script for debian (serves Ubuntu).

jekyll

#!/bin/bash
#
# Jekyll is a Ruby based website/blog generator, this is his
# (unnoficial) init script. Tested with Jekyll 1.5.
# Author: Augusto Pascutti <augusto.hp@gmail.com>

set -o errexit
set -o pipefail
[[ $DEBUG ]] && set -x

declare -r SOURCE=/var/www
declare -r PID_FILE=/var/run/jekyll.pid
declare -r LOG_FILE=/var/log/jekyll.log
declare -r JEKYLL="$(which jekyll)"
declare -r JEKYLL_CONFIG="$SOURCE/_config.yml"
declare -r JEKYLL_OPTIONS="--trace serve --watch --config $JEKYLL_CONFIG"

[[ "$JEKYLL" == "" ]] && (echo "Jekyll not installed. Try 'gem install jekyll'."; exit 2);
[[ ! -f "$JEKYLL_CONFIG" ]] && (echo "Jekyll configuration ($JEKYLL_CONFIG) not found."; exit 2);
[[ "$(id -u)" -ne 0 ]] && (echo "Jekyll init script needs to be executed by root."; exit 2);

function jekyll_is_running()
{
        [[ -f "$PID_FILE" ]] || return 1;
        JEKYLL_PID="$(cat $PID_FILE)"
        [[ -z "$JEKYLL_PID" ]] && return 1;
        [[ -z "$(ps --no-heading -p $JEKYLL_PID)" ]] && return 1 || return 0;
}

case "$1" in
start)
    $JEKYLL $JEKYLL_OPTIONS >> $LOG_FILE 2>&1 &
    echo $! > $PID_FILE
    echo "Jekyll watcher started."
    exit 0
;;

stop)
    jekyll_is_running || (echo 'Jekyll is not running.'; exit 1;)
    kill -TERM $(cat $PID_FILE) &&  rm -f $PID_FILE && echo "Jekyll watcher stopped."
    exit 0
;;

restart)
    $0 stop &&  $0 start && exit 0
;;

status)
        echo -n "Jekyll is "
        jekyll_is_running && echo 'running' || echo 'not running.'
;;

*)
        echo "Usage: $0 {start|stop|restart|status}"
        exit 1
esac
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