keep-fetching.sh

#!/bin/bash

set -e

dir=$(cd ${1:-.} && pwd)
if [ $? -ne 0 ] || [ ! -d "$dir" ] || [ ! -w "$dir" ]; then
  echo "$dir can not writable directory, abort."
  exit 1
fi

cd $dir
git status --short > /dev/null
if [ $? -ne 0 ]; then
  exit 1
fi

sleep_time=${2:-60}
if [ $sleep_time -le 0 ]; then
  sleep_time=60
fi

while :; do
  git fetch
  echo -n "."
  sleep $sleep_time
done