bin_update_hook_init.sh

#! /bin/bash

for file in post-checkout post-commit post-merge post-rewrite; do
  curl -sO "https://gist.githubusercontent.com/ericboehs/00d3e27c993b5b951a79312f6b51dbf5/raw/$file"
  chmod +x $file
  mv $file .git/hooks/
done

post-checkout

#!/bin/bash
(
  while ls .git/bin_setup_lock* 1> /dev/null 2>&1; do
    sleep 2
  done

  bin/update > /dev/null 2>&1
) &

post-commit

#!/bin/bash
(
  while ls .git/bin_setup_lock* 1> /dev/null 2>&1; do
    sleep 2
  done

  bin/update > /dev/null 2>&1
) &

post-merge

#!/bin/bash
(
  while ls .git/bin_setup_lock* 1> /dev/null 2>&1; do
    sleep 2
  done

  bin/update > /dev/null 2>&1
) &

post-rewrite

#!/bin/bash

case "$1" in
  rebase) exec .git/hooks/post-merge ;;
esac

To install, run:

curl -sL https://gist.github.com/ericboehs/00d3e27c993b5b951a79312f6b51dbf5/raw/bin_update_hook_init.sh | bash

from your project root.