watchman-2024.11.04.00gentoo

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# Copyright 2020-2026 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=8

# These must be bumped together:
# dev-cpp/edencommon
# dev-cpp/fb303
# dev-cpp/fbthrift
# dev-cpp/fizz
# dev-cpp/folly
# dev-cpp/mvfst
# dev-cpp/wangle
# dev-util/watchman

# TODO: Split into different variables then combine for each component?
# Not all is in rust/ dir.
# Rust components:
# - thirdparty/deelevate_binding/Cargo.toml
# - rust/watchman_client/Cargo.toml
# - rust/serde_bser/Cargo.toml
# - cli/Cargo.toml
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"

DISTUTILS_EXT=1
DISTUTILS_USE_PEP517=setuptools
PYTHON_COMPAT=( python3_{11..13} )

inherit cargo cmake distutils-r1 tmpfiles

DESCRIPTION="A file watching service"
HOMEPAGE="https://facebook.github.io/watchman/"
SRC_URI="https://github.com/facebook/watchman/archive/refs/tags/v${PV}.tar.gz -> ${P}.tar.gz"
SRC_URI+=" ${CARGO_CRATE_URIS}"

LICENSE="MIT"
# Dependent crate licenses
LICENSE+=" Apache-2.0 MIT Unicode-DFS-2016 WTFPL-2"
SLOT="0"
KEYWORDS="amd64 ~arm64"
IUSE="llvm-libunwind python"
REQUIRED_USE="python? ( ${PYTHON_REQUIRED_USE} )"

# See https://github.com/facebook/watchman/blob/main/CMakeLists.txt#L342 for libevent
RDEPEND="
	>=dev-libs/libfmt-8.1.1-r1:=
	dev-cpp/cpptoml:=
	dev-cpp/glog:=
	dev-libs/libevent:=
	dev-libs/libpcre2
	dev-libs/openssl:=
	~dev-cpp/edencommon-${PV}:=
	~dev-cpp/fb303-${PV}:=
	~dev-cpp/fbthrift-${PV}:=
	~dev-cpp/fizz-${PV}:=
	~dev-cpp/folly-${PV}:=
	~dev-cpp/wangle-${PV}:=
	llvm-libunwind? ( llvm-runtimes/libunwind:= )
	!llvm-libunwind? ( sys-libs/libunwind:= )
	python? ( ${PYTHON_DEPS} )
"
# TODO: Make gtest test-only (needs a fair bit of patching)
DEPEND="
	${RDEPEND}
	dev-cpp/gtest
"

PATCHES=(
	"${FILESDIR}"/${PN}-2022.02.28.00-libatomic.patch
	"${FILESDIR}"/${PN}-2022.08.08.00-musl-fsword-fix.patch
	"${FILESDIR}"/${PN}-2023.06.19.00-gcc15.patch
	"${FILESDIR}"/${PN}-2024.11.04.00-python-tests.patch
)

# Rust utility
QA_FLAGS_IGNORED="usr/bin/watchmanctl"

distutils_enable_tests unittest

src_prepare() {
	# Avoid cargo_src_prepare
	cmake_src_prepare
}

src_configure() {
	# https://github.com/facebook/watchman/blob/789678cf9855fb07b402afb75b01e4f8786deba2/build/fbcode_builder/CMake/RustStaticLibrary.cmake#L17
	export RUST_VENDORED_CRATES_DIR="${ECARGO_VENDOR}"
	export RUST_CARGO_HOME="${ECARGO_HOME}"
	export CARGO_HOME="${ECARGO_HOME}"
	# Build system already handles avoiding Rust-jobs-while-CMake-jobs-spawned issue
	# https://github.com/facebook/watchman/blob/789678cf9855fb07b402afb75b01e4f8786deba2/build/fbcode_builder/CMake/RustStaticLibrary.cmake#L69
	# so no need to force -j1 via cargo jobs

	local mycmakeargs=(
		# Rust wrangling
		-DUSE_CARGO_VENDOR=ON
		-DGENERATE_CARGO_VENDOR_CONFIG=OFF
		-DRUST_CARGO_HOME="${RUST_CARGO_HOME}"

		# General bits
		-DWATCHMAN_STATE_DIR="${EPREFIX}"/run/watchman
		-DWATCHMAN_VERSION_OVERRIDE=${PV}

		# We handle this ourselves
		-DCMAKE_DISABLE_FIND_PACKAGE_Python3=ON

		# The generated thrift services need to be statically linked into the watchman binary, otherwise
		# watchman fails to find them.
		-DBUILD_SHARED_LIBS=OFF
	)

	cmake_src_configure
}

src_compile() {
	cmake_src_compile

	if use python ; then
		pushd watchman/python >/dev/null || die
		distutils-r1_src_compile
		popd >/dev/null || die
	fi
}

src_test() {
	cmake_src_test

	if use python ; then
		pushd watchman/python >/dev/null || die
		distutils-r1_src_test
		popd >/dev/null || die
	fi
}

src_install() {
	cmake_src_install

	newtmpfiles "${FILESDIR}"/watchman.tmpfiles watchman.conf

	if use python ; then
		pushd watchman/python >/dev/null || die
		distutils-r1_src_install
		popd >/dev/null || die
	fi
}

pkg_postinst() {
	tmpfiles_process watchman.conf
}