#!/usr/bin/env bash
## make_patch Creates patch file with the current changes.
##
## Copyright (c) 2014-2021 Sylvain Benner & Contributors
##
## Author: Eugene Yaremenko
## URL: https://github.com/syl20bnr/spacemacs
##
## This file is not part of GNU Emacs.
##
## License: GPLv3

if [[ -z "$(git status --porcelain)" ]]; then
    echo "No changes. Exiting."
    exit 0
else
    git diff HEAD > "/tmp/${PUBLISH}.patch"
    echo "Changed files:"
    git status --porcelain
    echo "============================"
    echo "Patch:"
    cat "/tmp/${PUBLISH}.patch"
    echo "============================"
    if [[ -z $(grep '[^[:space:]]' "/tmp/${PUBLISH}.patch") ]]; then
        echo "\"/tmp/${PUBLISH}.patch\" is empty while the repo has changes."
        exit 2
    fi
fi