Sync (reset) your local and origin branches to canonical upstream branches. For when you want to hard reset everything to upstream. Add to your PATH and make executable. Do git sync-all-upstream

git-sync-all-upstream

#!/usr/bin/env bash

set -Eeuo pipefail

_die() {
    echo "$*" >&2
    exit 1
}

bold=$(tput bold)
normal=$(tput sgr0)

if output=$(git status --untracked-files=no --porcelain) && [ -z "$output" ]
then
    echo "${bold}Working directory is clean.${normal}"
else
    echo "You have uncommitted changes."

    exit 1
fi

all_remotes=$(git remote)

echo "${bold}Pruning remotes...${normal}"

for r in $all_remotes
do
    git remote prune "$r"
done

local_branches=$(git branch | cut -d ' ' -f 2,3 | sed -e "s/ //")

echo "${bold}Checking connectivity and determining branches to sync:${normal}"

have_master=""
have_origin=""
origin_branches=
have_upstream=""
upstream_branches=

for r in $all_remotes
do
    echo -n "   $r... "

    if [ "origin" == "$r" ]
    then
        have_origin="yes"
        origin_branches=$(git ls-remote -h $r | sed -E "s|.+refs/heads/||")
        echo "ok"
    elif [ "upstream" == "$r" ]
    then
        have_upstream="yes"
        upstream_branches=$(git ls-remote -h $r | sed -E "s|.+refs/heads/||")
        echo "ok"
    elif git ls-remote --exit-code $r &>/dev/null
    then
        echo "ok"
    else
        _die "FAILED!"
    fi
done

if [ -z "$have_origin" ]
then
    _die "You do not have an origin defined."
fi

clean_branch_list=()

for b in $local_branches
do
    for ob in $origin_branches
    do
        if [ "$ob" == "$b" ]
        then
            if [[ "$b" == "master" ]]
            then
                have_master="Y"
            fi

            if [ -z "$have_upstream" ]
            then
                clean_branch_list+=("$b")
            else
                for ub in $upstream_branches
                do
                    if [ "$ub" == "$b" ]
                    then
                        clean_branch_list+=("$b")
                    fi
                done
            fi
        fi
    done
done

default_branch=$(git rev-parse --abbrev-ref origin/HEAD | awk -F/ '{print $NF}')

echo "${bold}Default branche is: $default_branch${normal}"
echo "${bold}Syncing branches...${normal}"

if [ -z "$have_master" ]
then
    git checkout "$default_branch"
else
    git checkout master
fi

git fetch --all --tags

for i in "${clean_branch_list[@]}"
do
    git checkout $i

    if [ -z "$have_upstream" ]
    then
        git reset --hard "origin/$i"
    else
        git reset --hard "upstream/$i"
        git push
    fi
done

git checkout "$default_branch"

echo "${bold}Done.${normal}"