# Copyright 2016-2022 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=8

inherit fcaps go-module tmpfiles systemd flag-o-matic

DESCRIPTION="A painless self-hosted Git service"
HOMEPAGE="https://gitea.io https://github.com/go-gitea/gitea"

if [[ ${PV} == *9999 ]]; then
	inherit git-r3
	EGIT_REPO_URI="https://github.com/go-gitea/gitea.git"
else
	SRC_URI="https://github.com/go-gitea/gitea/releases/download/v${PV}/gitea-src-${PV}.tar.gz -> ${P}.tar.gz"
	KEYWORDS="~amd64 ~arm ~arm64 ~riscv ~x86"
fi

S="${WORKDIR}/${PN}-src-${PV}"

LICENSE="Apache-2.0 BSD BSD-2 ISC MIT MPL-2.0"
SLOT="0"
IUSE="+acct pam sqlite pie"

DEPEND="
	acct? (
		acct-group/git
		acct-user/git[gitea] )
	pam? ( sys-libs/pam )"
RDEPEND="${DEPEND}
	dev-vcs/git"

DOCS=(
	custom/conf/app.example.ini CONTRIBUTING.md README.md
)
FILECAPS=(
	-m 711 cap_net_bind_service+ep usr/bin/gitea
)

RESTRICT="test"

src_prepare() {
	default

	local sedcmds=(
		-e "s#^ROOT =#ROOT = ${EPREFIX}/var/lib/gitea/gitea-repositories#"
		-e "s#^ROOT_PATH =#ROOT_PATH = ${EPREFIX}/var/log/gitea#"
		-e "s#^APP_DATA_PATH = data#APP_DATA_PATH = ${EPREFIX}/var/lib/gitea/data#"
		-e "s#^HTTP_ADDR = 0.0.0.0#HTTP_ADDR = 127.0.0.1#"
		-e "s#^MODE = console#MODE = file#"
		-e "s#^LEVEL = Trace#LEVEL = Info#"
		-e "s#^LOG_SQL = true#LOG_SQL = false#"
		-e "s#^DISABLE_ROUTER_LOG = false#DISABLE_ROUTER_LOG = true#"
	)

	sed -i "${sedcmds[@]}" custom/conf/app.example.ini || die
	if use sqlite ; then
		sed -i -e "s#^DB_TYPE = .*#DB_TYPE = sqlite3#" custom/conf/app.example.ini || die
	fi
}

src_configure() {
	# bug 832756 - PIE build issues
	filter-flags -fPIE
	filter-ldflags -fPIE -pie
}

src_compile() {
	local gitea_tags=(
		bindata
		$(usev pam)
		$(usex sqlite 'sqlite sqlite_unlock_notify' '')
	)
	local gitea_settings=(
		"-X code.gitea.io/gitea/modules/setting.CustomConf=${EPREFIX}/etc/gitea/app.ini"
		"-X code.gitea.io/gitea/modules/setting.CustomPath=${EPREFIX}/var/lib/gitea/custom"
		"-X code.gitea.io/gitea/modules/setting.AppWorkPath=${EPREFIX}/var/lib/gitea"
	)
	local makeenv=(
		DRONE_TAG="${PV}"
		LDFLAGS="-extldflags \"${LDFLAGS}\" ${gitea_settings[*]}"
		TAGS="${gitea_tags[*]}"
	)

	GOFLAGS=""
	if use pie ; then
		GOFLAGS+="-buildmode=pie"
	fi

	env "${makeenv[@]}" emake EXTRA_GOFLAGS="${GOFLAGS}" backend
}

src_install() {
	dobin gitea

	einstalldocs

	newconfd "${FILESDIR}/gitea.confd-r1" gitea
	newinitd "${FILESDIR}/gitea.initd-r3" gitea
	newtmpfiles - gitea.conf <<-EOF
		d /run/gitea 0755 git git
	EOF
	systemd_newunit "${FILESDIR}"/gitea.service-r3 gitea.service

	insinto /etc/gitea
	newins custom/conf/app.example.ini app.ini
	if use acct; then
		fowners root:git /etc/gitea/{,app.ini}
		fperms g+w,o-rwx /etc/gitea/{,app.ini}

		diropts -m0750 -o git -g git
		keepdir /var/lib/gitea /var/lib/gitea/custom /var/lib/gitea/data
		keepdir /var/log/gitea
	fi
}

pkg_postinst() {
	fcaps_pkg_postinst
	tmpfiles_process gitea.conf

	ewarn "The default JWT signing algorithm changed in 1.15.0 from HS256 (symmetric) to"
	ewarn "RS256 (asymmetric). Gitea OAuth2 tokens (and potentially client secrets) will"
	ewarn "need to be regenerated unless you change your JWT_SIGNING_ALGORITHM back to HS256."
	ewarn "For other breaking changes, see <https://github.com/go-gitea/gitea/releases/tag/v1.15.0>."
}