Pre deploy client build example

build_client_archive.sh

#!/usr/bin/env bash

if ! command -v gulp > /dev/null; then
  echo && echo "error: gulp required"
  exit 1
fi

gulp build

if ! command -v md5sum > /dev/null; then
  echo && echo "error: md5sum required"
  exit 1
fi

# hash frontend assets to single filename
# http://stackoverflow.com/questions/1657232/how-can-i-calculate-an-md5-checksum-of-a-directory
asset_paths='web/assets'
asset_hash=`find $asset_paths -type f -exec md5sum {} + | awk '{print $1}' | sort | md5sum | awk '{print $1}' | cut -c 1-12`
archive_name=client_assets.${asset_hash}.tar.gz

# check that the archive doesn't already exsist
if [[ ! -f $archive_name ]]; then
  echo "Removing old: client_assets.*.tar.gz"
  git rm client_assets.*.tar.gz --ignore-unmatch

  echo "Making new archive:"
  echo "tar -zcvf $archive_name $asset_paths"
  tar -zcvf "$archive_name" "$asset_paths"
fi