#!/bin/sh

export LC_ALL=C.UTF-8
export LANG=C.UTF-8

set -e
DOC_DIR="/root/docs"
cd "${DOC_DIR}" || exit 1

# fetch the latest remote repo changes
/usr/local/bin/git fetch origin master -q 2> /dev/null

# get shas for our local repo and remote repo
remotesha=$(/usr/local/bin/git rev-parse origin/master)
localsha=$(/usr/local/bin/git rev-parse HEAD)

# if shas are different, we need to update
if [ "$remotesha" != "$localsha" ] || [ "$1" = "force" ]; then
  # clear all our local changes
  /usr/local/bin/git reset --hard HEAD -q

  # pull in the latest updates from remote
  /usr/local/bin/git pull -q origin master 2> /dev/null

  # build the web version
  /usr/local/bin/mkdocs -q build > /dev/null

  # clear the gopher version
  rm -f /var/gopher/docs/*.md

  # copy files to the gopher version
  cd "${DOC_DIR}/docs/" || exit 1
  cp ./* /var/gopher/docs/
fi