# Uncomment when introducing a patch which touches configure

RSYNC_NEEDS_AUTOCONF=1

PYTHON_COMPAT=( python3_{10..13} )

inherit flag-o-matic prefix python-single-r1 systemd

DESCRIPTION="File transfer program to keep remote files into sync"

HOMEPAGE="https://rsync.samba.org/"

if [[ ${PV} == *9999 ]] ; then

	EGIT_REPO_URI="https://github.com/WayneD/rsync.git"

	inherit autotools git-r3

	REQUIRED_USE="${PYTHON_REQUIRED_USE}"

else

	VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/andrewtridgell.asc

	inherit verify-sig

	if [[ -n ${RSYNC_NEEDS_AUTOCONF} ]] ; then

		inherit autotools

	fi

	if [[ ${PV} == *_pre* ]] ; then

		SRC_DIR="src-previews"

	else

		SRC_DIR="src"

		KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux ~arm64-macos ~ppc-macos ~x64-macos ~x64-solaris"

	fi

	SRC_URI="https://rsync.samba.org/ftp/rsync/${SRC_DIR}/${P/_/}.tar.gz

		verify-sig? ( https://rsync.samba.org/ftp/rsync/${SRC_DIR}/${P/_/}.tar.gz.asc )"

	S="${WORKDIR}"/${P/_/}

fi

LICENSE="GPL-3"

IUSE="acl examples iconv lz4 rrsync ssl stunnel system-zlib xattr xxhash zstd"

REQUIRED_USE+=" examples? ( ${PYTHON_REQUIRED_USE} )"

REQUIRED_USE+=" rrsync? ( ${PYTHON_REQUIRED_USE} )"

# attr is autodetected and then dropped by -Wl,--as-needed:

# https://github.com/RsyncProject/rsync/pull/753

	>=dev-libs/popt-1.19

	acl? ( virtual/acl )

	examples? (

		${PYTHON_DEPS}

		dev-lang/perl

	)

	lz4? ( app-arch/lz4:= )

	rrsync? (

		${PYTHON_DEPS}

		$(python_gen_cond_dep '

			dev-python/bracex[${PYTHON_USEDEP}]

		')

	)

	ssl? ( dev-libs/openssl:= )

	system-zlib? ( sys-libs/zlib )

	xxhash? ( >=dev-libs/xxhash-0.8 )

	zstd? ( >=app-arch/zstd-1.4:= )

	iconv? ( virtual/libiconv )"

DEPEND="${RDEPEND}"

BDEPEND="

	examples? ( ${PYTHON_DEPS} )

	rrsync? ( ${PYTHON_DEPS} )

if [[ ${PV} == *9999 ]] ; then

	BDEPEND+=" ${PYTHON_DEPS}

		$(python_gen_cond_dep '

			dev-python/commonmark[${PYTHON_USEDEP}]

		')"

else

	BDEPEND+=" verify-sig? ( sec-keys/openpgp-keys-andrewtridgell )"

fi

PATCHES=(

	"${FILESDIR}"/${PN}-3.4.1-c23.patch

)

pkg_setup() {

	# - USE=examples needs Python itself at runtime, but nothing else

	# - 9999 needs commonmark at build time

	if [[ ${PV} == *9999 ]] || use examples || use rrsync; then

		python-single-r1_pkg_setup

	fi

}

src_prepare() {

	default

	sed -i -e 's/AC_HEADER_MAJOR_FIXED/AC_HEADER_MAJOR/' configure.ac

	if [[ ${PV} == *9999 || -n ${RSYNC_NEEDS_AUTOCONF} ]] ; then

		eaclocal -I m4

		eautoconf -o configure.sh

		eautoheader && touch config.h.in

	fi

	if use examples || use rrsync; then

		python_fix_shebang support/

	fi

	if [[ -f rrsync.1 ]]; then

		# If the pre-build rrsync.1 man page exists, then link to it

		# from support/rrsync.1 to avoid rsync's build system attempting

		# re-creating the man page (bug #883049).

		ln -s ../rrsync.1 support/rrsync.1 || die

	fi

}

src_configure() {

	local myeconfargs=(

		--with-rsyncd-conf="${EPREFIX}"/etc/rsyncd.conf

		--without-included-popt

		--enable-ipv6

		$(use_enable acl acl-support)

		$(use_enable iconv)

		$(use_enable lz4)

		$(use_with rrsync)

		$(use_enable ssl openssl)

		$(use_with !system-zlib included-zlib)

		$(use_enable xattr xattr-support)

		$(use_enable xxhash)

		$(use_enable zstd)

	)

	# https://github.com/WayneD/rsync/pull/428

	if is-flagq -fsanitize=undefined ; then

		sed -E -i \

			-e 's:#define CAREFUL_ALIGNMENT (0|1):#define CAREFUL_ALIGNMENT 1:' \

			byteorder.h || die

		append-flags -DCAREFUL_ALIGNMENT

	fi

	econf "${myeconfargs[@]}"

}

src_install() {

	emake DESTDIR="${D}" install

	newconfd "${FILESDIR}"/rsyncd.conf.d rsyncd

	newinitd "${FILESDIR}"/rsyncd.init.d-r1 rsyncd

	dodoc NEWS.md README.md TODO tech_report.tex

	insinto /etc

	newins "${FILESDIR}"/rsyncd.conf-3.2.7-r5 rsyncd.conf

	insinto /etc/logrotate.d

	newins "${FILESDIR}"/rsyncd.logrotate rsyncd

	insinto /etc/xinetd.d

	newins "${FILESDIR}"/rsyncd.xinetd-3.0.9-r1 rsyncd

	# Install stunnel helpers

	if use stunnel ; then

		emake DESTDIR="${D}" install-ssl-daemon

	fi

	# Install the useful contrib scripts

	if use examples ; then

		# The 'rrsync' script is installed conditionally via the 'rrysnc'

		# USE flag, and not via the 'examples' USE flag.

		rm support/rrsync* || die

		exeinto /usr/share/rsync

		doexe support/*

		rm -f "${ED}"/usr/share/rsync/{Makefile*,*.c}

	fi

	eprefixify "${ED}"/etc/{,xinetd.d}/rsyncd*

	systemd_newunit packaging/systemd/rsync.service rsyncd.service

}

pkg_postinst() {

	if grep -Eqis '^[[:space:]]use chroot[[:space:]]*=[[:space:]]*(no|0|false)' \

		"${EROOT}"/etc/rsyncd.conf "${EROOT}"/etc/rsync/rsyncd.conf ; then

		ewarn "You have disabled chroot support in your rsyncd.conf.  This"

		ewarn "is a security risk which you should fix.  Please check your"

		ewarn "/etc/rsyncd.conf file and fix the setting 'use chroot'."

	fi

	if use stunnel ; then

		einfo "Please install \">=net-misc/stunnel-4\" in order to use stunnel feature."

		einfo

		einfo "You maybe have to update the certificates configured in"

		einfo "${EROOT}/etc/stunnel/rsync.conf"

	fi

	if use system-zlib ; then

		ewarn "Using system-zlib is incompatible with <rsync-3.1.1 when"

		ewarn "using the --compress option."

		ewarn

		ewarn "When syncing with >=rsync-3.1.1 built with bundled zlib,"

		ewarn "and the --compress option, add --new-compress (-zz)."

		ewarn

		ewarn "For syncing the portage tree, add:"

		ewarn "PORTAGE_RSYNC_EXTRA_OPTS=\"--new-compress\" to make.conf"

	fi

}