#!/bin/bash

HASH=$(git rev-parse --short HEAD 2>/dev/null || :)
if [ -z "$HASH" ]; then
	echo "empty"
	exit
fi

TAG=$(git describe --exact-match "$HASH" 2>/dev/null | head -n 1)
if [ -n "$TAG" ]; then
	HASH="$TAG"
fi

ST=$(git status -s -u | head -n 1)
if [ -n "$ST" ]; then
	HASH="${HASH}-dirty"
fi

BRANCH=$(git branch --no-color 2>/dev/null | sed -e '/^[^*]/d' -e "s/* \(.*\)/\1/")
if [[ "$BRANCH" == *"("* ]]; then
	BRANCH=''
else
	BRANCH="${BRANCH}:"
fi

echo "${BRANCH}${HASH}"