#!/usr/bin/env bash

WHEREAMI="$( cd -- "$( dirname -- "${BASH_SOURCE[0]:-$0}"; )" &> /dev/null && pwd 2> /dev/null; )";

#Get all the target servers
SERVERLIST=$(grep -v '#' "${WHEREAMI}/copy_to_servers.ini")

[ -z "${SERVERLIST}" ] \
  && echo "Server list empty." \
  && exit 1

#If you make it dirty, clean it up
cleanup() {
  if [[ -n "${TMP}" && -d "${TMP}" ]]; then
    rm -rf "${TMP}"
  fi
}
trap cleanup EXIT INT TERM

#Find some tmpfs
TMP=""
if [ -e /dev/shm/ ] && [ "$(findmnt -n -o FSTYPE --target /dev/shm)" == "tmpfs" ]; then
  TMP="$(mktemp -d -p /dev/shm/)"
else
  TMP="$(mktemp -d)"
fi

FUNTMP="${TMP}/fun_with_env"

#Prepare the files to copy over
mkdir "${FUNTMP}"
cd "${WHEREAMI}" \
  && git archive --format=tar HEAD | tar xf - -C "${FUNTMP}"

#Copy it
for host in ${SERVERLIST}; do
  rsync -az "${FUNTMP}/" ${host}:~/.fun_with_env
done