git_sync_with_remote.sh

#!/bin/bash

# red=$(tput setaf 1)
# green=$(tput setaf 76)
normal=$(tput sgr0)
bold=$(tput bold)
# underline=$(tput sgr 0 1)

current_branch=$(git  -C "$repo_name" branch --show-current) # mark what branch are we currently

if [ -n "$1" ] ; then
  repo_name="$1"
  printf " \n"
  printf "%s\t%s\n" "${bold}operating from${normal}" "$repo_name"
  printf "%s\n" "-------------------------------------------------------------------" ""
else
  repo_name=$(pwd)
  printf " \n"
  printf "%s\t%s\n" "${bold}operating from${normal}" "$repo_name"
  printf "%s\n" "-------------------------------------------------------------------" ""
fi

default_branch=$(git -C "$repo_name" remote show origin | grep "HEAD branch" | cut -d " " -f 3)

# checkout default branch
git -C "$repo_name" checkout "$default_branch"
git -C "$repo_name" pull origin "$default_branch"
#  fetch and pull all branches
git -C "$repo_name" fetch --all -p
git -C "$repo_name" pull --all

# delete local branches that have been deleted on remote repo
git -C "$repo_name" branch -vv | grep gone | awk '{ print $1 }' | xargs -n 1 git -C "$repo_name" branch -D
# add all branches from remote
git -C "$repo_name" branch -r | grep -v '\->' | grep "origin/" | \
  while read -r remote; do
    git -C "$repo_name" branch --track "${remote#origin/}" "$remote"
  done

git checkout "$current_branch" # returns to initial branch