Jekyll Sync Publish Cronjob

jekyll_sync_publich.sh

#!/usr/bin/env bash

# 0. cd into dir
dir=$(dirname $0)
cd $dir

# 1. Sync from master
git pull origin master

# 2. Get SHA's
sha=$(git log -n 1 --pretty=format:"%H")
sha_o="~"
file="sha.txt"
if [ -f $file ]; then
  sha_o=$(cat $file)
fi

# 3. If sha's do not match update the site
if [ "$sha" != "$sha_o" ]; then
  jekyll build
  find _site/ -name '*.html' -exec sed -i.bak s/$\{sha\}/${sha}/g {} \;
  find _site/ -name '*.bak' -exec rm -rf {} \;
  rsync -avz _site/ /home/<sitename>/public_html/
  rm -rf _site
  echo "$sha" > $file
fi