# Copyright 1999-2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=7

# Seems to work with 3.6...
PYTHON_COMPAT=( python3_{6,7,8,9} )

inherit python-single-r1 xdg-utils

DESCRIPTION="Daemon for monitoring and adaptive tuning of system devices"
HOMEPAGE="https://github.com/redhat-performance/tuned"
SRC_URI="https://github.com/redhat-performance/tuned/archive/v${PV}.tar.gz -> ${P}.tar.gz"

LICENSE="GPL-2"
SLOT="0"
KEYWORDS="*"

IUSE="systemtap"
REQUIRED_USE="${PYTHON_REQUIRED_USE}"

DEPEND="
	${PYTHON_DEPS}
	$(python_gen_cond_dep '
		dev-python/configobj[${PYTHON_MULTI_USEDEP}]
		dev-python/decorator[${PYTHON_MULTI_USEDEP}]
		dev-python/pyudev[${PYTHON_MULTI_USEDEP}]
		dev-python/dbus-python[${PYTHON_MULTI_USEDEP}]
		dev-python/pygobject:3[${PYTHON_MULTI_USEDEP}]
		dev-python/python-linux-procfs[${PYTHON_MULTI_USEDEP}]
	')"

# Systemtap is only used in the form a few misc utilities.
# Mark it as optional.
RDEPEND="
	${DEPEND}
	sys-apps/dbus
	sys-apps/ethtool
	sys-power/powertop
	systemtap? ( dev-util/systemtap )"

RESTRICT="test"

src_prepare() {
	default
	eapply "${FILESDIR}"
	# Tuned autodetects the Python dir with an absolute path, but then
	# that absolute path is created relative to the EROOT, which means
	# none of the python modules can be found. Therefore, find the
	# absolute python path and strip the EROOT so we get the python site dir
	# relative to the EROOT.
	# ie, This will try to install to /build/${BOARD}/usr/lib64/python3.6/site-packages
	# by default when we just want to install to /usr/lib64/python3.6/site-packages.
	python_site_dir="$(python_get_sitedir)"
	python_site_dir=${python_site_dir#${EROOT}}
	sed -i \
		-e "/^PYTHON/s:/usr/bin/python3:${EPREFIX}/usr/bin/${EPYTHON}:" \
		-e "/^export DOCDIR/s/$/&\-\$(VERSION)/g" \
		-e "/\$(DESTDIR)\/run\/tuned/d" \
		-e "/\$(DESTDIR)\/var\/lib\/tuned/d" \
		-e "/\$(DESTDIR)\/var\/log\/tuned/d" \
		-e "s:PYTHON_SITELIB = .*:PYTHON_SITELIB = ${python_site_dir}:" \
		Makefile || die
}

src_install() {
	default

	if ! use systemtap; then
		rm ${D}/usr/sbin/{diskdevstat,netdevstat,scomes,varnetload}
	fi 
	python_fix_shebang "${D}"
	python_optimize
}

pkg_postinst() {
	xdg_icon_cache_update
}