A wrapper script to control hubot by forever

hubotctl.sh

#!/usr/bin/env bash

set -euo pipefail

envfile=".env.hubot"
if [[ ! -e $envfile ]]; then
  echo "[error] $envfile not found!"
  exit 1
fi
. $envfile

help() {
  pod2text $0
  exit 1
}

status() {
  if forever list | grep 'No forever processes running' &>/dev/null; then
    echo '[info] hubot is not running.'
    return 1
  else
    echo '[ok] hubot is running.'
    return 0
  fi
}

start() {
  forever start -w -c /bin/sh ./bin/hubot --adapter slack --require scripts/envs/$HUBOT_ENVIRONMENT
  echo '[info] hubot started.'
}

stop() {
  forever stop -c /bin/sh ./bin/hubot
  echo '[info] hubot stopped.'
}

stop-and-confirm() {
  local try=0
  stop
  while true; do
    : $((try++))
    status &>/dev/null || break
    sleep 1
    echo "[info] wait for hubot to stop ... $try"
    if ((try >= 3)); then
      echo "[error] Timeout."
    fi
  done
}

case "${1:-}" in
  "status" )
    forever list
    status
    ;;
  "start" )
    if status &>/dev/null; then
      echo '[warn] hubot is already running.'
      exit 1
    fi
    start
    ;;
  "stop" )
    if ! status &>/dev/null; then
      echo '[warn] hubot is not running.'
      exit 1
    fi
    stop
    ;;
  "restart" )
    if ! status &>/dev/null; then
      echo '[warn] hubot is not running.'
    else
      stop-and-confirm
    fi
    start
    ;;
  * )
    help
    ;;
esac

exit

: <<'__EOF__'

=encoding utf8

=head1 NAME

B<hubotctl> - Wrapper script to control hubot by forever

=head1 SYNOPSYS

    # Control hubot
    ./bin/hubotctl status|start|stop|restart

    # Help
    ./bin/hubotctl help|--help

=head1 DESCRIPTION

Blah blah blah.

=cut

__EOF__