#!/bin/sh

REMOTE="${1:-origin}"
BRANCH=$(git branch --no-color --list | grep '^\*' | awk '{print $2}')
if [[ "$BRANCH" != "(detached" ]]; then
    STASH_OUTPUT=$(git stash)
    if [[ "$STASH_OUTPUT" = "No local changes to save" ]]; then
        POP_STASH=0
    else
        POP_STASH=1
    fi
    git fetch --prune --tags "$REMOTE" && git rebase "$REMOTE/$BRANCH" && ([[ $POP_STASH -eq 1 ]] && git stash pop) || true
else
    echo "Cannot update in a detached HEAD state"
fi