sys-fs/lxcfs: tweak init/service files for fuse:3

 - dependency is on fuse:3 instead of fuse:0,
 - update openrc files to call fusermount3,
 - update openrc files to have LXCFS_PATH config option,
 - update systemd service file to call fusermount3.

Closes: https://bugs.gentoo.org/868477
Signed-off-by: Joonas Niilola <juippis@gentoo.org>

4 files changed, 130 insertions, 0 deletions

diff --git a/sys-fs/lxcfs/files/lxcfs-5.0.2.confd b/sys-fs/lxcfs/files/lxcfs-5.0.2.confd
new file mode 100644
index 000000000000..bc853aa681be
--- /dev/null
+++ b/sys-fs/lxcfs/files/lxcfs-5.0.2.confd
@@ -0,0 +1,8 @@
+# /etc/conf.d/lxcfs: config file for /etc/init.d/lxcfs
+
+# lxcfs options:
+# -l == calculate container load average instead of displaying host load average
+# -u == don't display swap usage to containers
+
+LXCFS_OPTS="-l -u"
+LXCFS_PATH="/var/lib/lxcfs"
diff --git a/sys-fs/lxcfs/files/lxcfs-5.0.2.initd b/sys-fs/lxcfs/files/lxcfs-5.0.2.initd
new file mode 100644
index 000000000000..f3119f2e8e82
--- /dev/null
+++ b/sys-fs/lxcfs/files/lxcfs-5.0.2.initd
@@ -0,0 +1,27 @@
+#!/sbin/openrc-run
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+DAEMON=/usr/bin/lxcfs
+PIDFILE=/run/lxcfs.pid
+
+start() {
+	ebegin "Starting lxcfs."
+	/sbin/modprobe -q fuse
+	install -d "${LXCFS_PATH}"
+	start-stop-daemon --start \
+			--pidfile ${PIDFILE} \
+			--exec ${DAEMON} \
+			--background \
+			--make-pidfile \
+			-- ${LXCFS_OPTS} \
+			"${LXCFS_PATH}"
+	eend ${?}
+}
+
+stop() {
+	ebegin "Stopping lxcfs."
+	/usr/bin/fusermount3 -u "${LXCFS_PATH}"
+	start-stop-daemon --stop --quiet -R TERM/45 -p ${PIDFILE}
+	eend ${?}
+}
diff --git a/sys-fs/lxcfs/files/lxcfs-5.0.2.service b/sys-fs/lxcfs/files/lxcfs-5.0.2.service
new file mode 100644
index 000000000000..dc3dc9f18f63
--- /dev/null
+++ b/sys-fs/lxcfs/files/lxcfs-5.0.2.service
@@ -0,0 +1,18 @@
+[Unit]
+Description=FUSE filesystem for LXC
+ConditionVirtualization=!container
+Before=lxc.service
+Documentation=man:lxcfs(1)
+
+[Service]
+ExecStartPre=/sbin/modprobe -q fuse
+ExecStartPre=install -d /var/lib/lxcfs
+ExecStart=/usr/bin/lxcfs /var/lib/lxcfs
+KillMode=process
+Restart=on-failure
+ExecStopPost=-/usr/bin/fusermount3 -u /var/lib/lxcfs
+Delegate=yes
+ExecReload=/bin/kill -USR1 ${MAINPID}
+
+[Install]
+WantedBy=multi-user.target
diff --git a/sys-fs/lxcfs/lxcfs-5.0.2-r1.ebuild b/sys-fs/lxcfs/lxcfs-5.0.2-r1.ebuild
new file mode 100644
index 000000000000..23eccfc4b1f7
--- /dev/null
+++ b/sys-fs/lxcfs/lxcfs-5.0.2-r1.ebuild
@@ -0,0 +1,77 @@
+# Copyright 2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{9..11} )
+
+inherit cmake meson python-any-r1 systemd verify-sig
+
+DESCRIPTION="FUSE filesystem for LXC"
+HOMEPAGE="https://linuxcontainers.org/lxcfs/introduction/ https://github.com/lxc/lxcfs/"
+SRC_URI="https://linuxcontainers.org/downloads/lxcfs/${P}.tar.gz
+	verify-sig? ( https://linuxcontainers.org/downloads/lxcfs/${P}.tar.gz.asc )"
+
+LICENSE="Apache-2.0 LGPL-2+"
+SLOT="0"
+KEYWORDS="~amd64 ~arm64 ~riscv ~x86"
+IUSE="doc test"
+
+DEPEND="sys-fs/fuse:3"
+RDEPEND="${DEPEND}"
+BDEPEND="${PYTHON_DEPS}
+	$(python_gen_any_dep '
+		dev-python/jinja[${PYTHON_USEDEP}]
+	')
+	doc? ( sys-apps/help2man )
+	verify-sig? ( sec-keys/openpgp-keys-linuxcontainers )"
+
+# Needs some black magic to work inside container/chroot.
+RESTRICT="test"
+
+VERIFY_SIG_OPENPGP_KEY_PATH=${BROOT}/usr/share/openpgp-keys/linuxcontainers.asc
+
+python_check_deps() {
+	python_has_version -b "dev-python/jinja[${PYTHON_USEDEP}]"
+}
+
+pkg_setup() {
+	python-any-r1_pkg_setup
+}
+
+src_prepare() {
+	default
+
+	# Fix python shebangs for python-exec[-native-symlinks], #851480
+	local shebangs=($(grep -rl "#!/usr/bin/env python3" || die))
+	python_fix_shebang -q ${shebangs[*]}
+}
+
+src_configure() {
+	local emesonargs=(
+		$(meson_use doc docs)
+		$(meson_use test tests)
+
+		-Dfuse-version=3
+		-Dinit-script=""
+		-Dwith-init-script=""
+	)
+
+	meson_src_configure
+}
+
+src_test() {
+	cd "${BUILD_DIR}"/tests || die "failed to change into tests/ directory."
+	./main.sh || die
+}
+
+src_install() {
+	meson_src_install
+
+	newconfd "${FILESDIR}"/lxcfs-5.0.2.confd lxcfs
+	newinitd "${FILESDIR}"/lxcfs-5.0.2.initd lxcfs
+
+	# Provide our own service file (copy of upstream) due to paths being different from upstream,
+	# #728470
+	systemd_newunit "${FILESDIR}"/lxcfs-5.0.2.service lxcfs.service
+}