Make gunicorn reload during code changes for development, based on http://stackoverflow.com/a/19502993/308351 . Pre-alpha script.

rundevel

#!/bin/bash
PIDFILE=gunicorn.pid
EXTENSIONS="*.py;*.html;*.css;*.js"
APP=wsgiapp:application
WORKERS=3

function runserver() {
  echo "Starting gunicorn"
  PYTHONPATH=.:bin gunicorn $APP -w $WORKERS --pid $PIDFILE -D
  echo "gunicorn started with PID $!"
  if [ "$?" != "0" ]
  then
      echo "Startup error"
      exit 1
  fi
}

function observe_and_reload() {
  sleep 1
  echo "Observing sources..."
  watchmedo shell-command -p "$EXTENSIONS" -R --command "kill -s SIGHUP `cat $PIDFILE`" .
}

function stopserver() {
  echo "Killing gunicorn"
  kill -s SIGTERM `cat $PIDFILE`
}

runserver
observe_and_reload
stopserver