Update a python-powered static site blog based on (external) request.

update_blog.sh

#!/bin/sh
# (C) 2014 Dirk Ruediger
# Licensed under Do-with-it-wht-you-want license.
#
# Update a static site blog based on (external) request.
# This script works for python-powered blogs (pip, virtualenv, pelican, ...),
# but can adopted to other platforms easily.
#
# This script scans the project folder for a file '.dirty'.
# If this file is found, then it checks, if the requerements
# changed and, if anything changed, updates them.
#
# Then the git workspace and all git submodules are updated.
# Next step is to generate the project and rsync it to it's web space.
#
# The script can be run via cron.
#

PROJECT_HOME=$HOME/Projects/niebegeg.net
PUBLISH_DIR=/var/www/niebegeg.net
VIRTUAL_ENV=$HOME/.virtualenvs/pelican/

update_requirements() {
  UPDATE_REQUIREMENTS=1
  if [ -f $PROJECT_HOME/.requirements.bak ]
  then
    diff -q $PROJECT_HOME/requirements.txt $PROJECT_HOME/.requirements.bak && UPDATE_REQUIREMENTS=0
  fi

  if [ $UPDATE_REQUIREMENTS == 1 ]
  then
    pip install --exists-action i --upgrade -r $PROJECT_HOME/requirements.txt
    cp $PROJECT_HOME/requirements.txt $PROJECT_HOME/.requirements.bak
  fi
}

. $VIRTUAL_ENV/bin/activate
if [ -f $PROJECT_HOME/.dirty ]
then
  (
  rm -f $PROJECT_HOME/.dirty
  cd $PROJECT_HOME
  update_requirements
  git pull
  git submodule init && git submodule update
  $VIRTUAL_ENV/bin/pelican -o $PROJECT_HOME/output -s publishconf.py $PROJECT_HOME/content
  rsync -ar --delete $PROJECT_HOME/output/ $PUBLISH_DIR/
  )
fi