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#!/usr/bin/env sh
# SPDX-FileCopyrightText: 2022 Caleb La Grange <thonkpeasant@protonmail.com>
# SPDX-FileCopyrightText: 2023 Leah Rowe <leah@libreboot.org>
# SPDX-License-Identifier: GPL-3.0-only

. "include/err.sh"

git_name="lbmkplaceholder"
git_email="placeholder@lbmkplaceholder.com"

main()
{
	if [ $# -gt 0 ]; then
		if [ "${1}" = "clean" ]; then
			clean 1> /dev/null
		else
			err "unsupported argument, \"${1}\""
		fi
	else
		set_placeholders 1> /dev/null
	fi
}

set_placeholders()
{
	set_git_credentials

	# Check coreboot as well to prevent errors during building
	[ -d coreboot ] || return 0
	for x in coreboot/*; do
		[ -d "${x}" ] || continue
		[ -e "${x}/.git" ] || continue
		(
		cd "${x}"
		set_git_credentials
		)
	done
}

set_git_credentials()
{
	# Check if username and or email is set.
	if ! git config user.name || git config user.email ; then
		git config user.name || git config user.name "${git_name}" || \
		    err "cannot set local git user.name"
		git config user.email || git config user.email "${git_email}" \
		    || err "cannot set local git user.email"
	fi
}

clean()
{
	unset_placeholders

	[ -d coreboot ] || return 0
	for x in coreboot/*; do
		[ -d "${x}" ] || continue
		[ -e "${x}/.git" ] || continue
		(
		cd "${x}"
		unset_placeholders
		)
	done
}

unset_placeholders()
{
	if [ "$(git config user.name)" = "${git_name}" ]; then
		git config --unset user.name || \
		    err "cannot unset local git user.name"
	fi

	if [ "$(git config user.email)" = "${git_email}" ]; then
		git config --unset user.email || \
		    err "cannot unset local git user.email"
	fi
}

main $@