dev-python/uv: Add a live ebuild

Signed-off-by: Michał Górny <mgorny@gentoo.org>

1 files changed, 145 insertions, 0 deletions

diff --git a/dev-python/uv/uv-9999.ebuild b/dev-python/uv/uv-9999.ebuild
new file mode 100644
index 000000000000..0ebc73e88b05
--- /dev/null
+++ b/dev-python/uv/uv-9999.ebuild
@@ -0,0 +1,145 @@
+# Copyright 2024-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+RUST_MIN_VER="1.88.0"
+
+inherit cargo check-reqs git-r3
+
+DESCRIPTION="A Python package installer and resolver, written in Rust"
+HOMEPAGE="
+	https://github.com/astral-sh/uv/
+	https://pypi.org/project/uv/
+"
+EGIT_REPO_URI="https://github.com/astral-sh/uv.git"
+
+LICENSE="|| ( Apache-2.0 MIT )"
+SLOT="0"
+IUSE="test"
+RESTRICT="test"
+PROPERTIES="test_network"
+
+DEPEND="
+	app-arch/bzip2:=
+	app-arch/xz-utils:=
+	app-arch/zstd:=
+"
+RDEPEND="
+	${DEPEND}
+"
+BDEPEND="
+	test? (
+		dev-lang/python:3.9
+		dev-lang/python:3.10
+		dev-lang/python:3.11
+		dev-lang/python:3.12
+		dev-lang/python:3.13
+		!!~dev-python/uv-0.5.0
+	)
+"
+
+QA_FLAGS_IGNORED="usr/bin/.*"
+
+check_space() {
+	local CHECKREQS_DISK_BUILD=3G
+	use debug && CHECKREQS_DISK_BUILD=9G
+	check-reqs_pkg_setup
+}
+
+pkg_pretend() {
+	check_space
+}
+
+pkg_setup() {
+	check_space
+	rust_pkg_setup
+}
+
+src_unpack() {
+	git-r3_src_unpack
+	cargo_live_src_unpack
+}
+
+src_prepare() {
+	default
+
+	# force thin lto, makes build much faster and less memory hungry
+	# (i.e. makes it possible to actually build uv on 32-bit PPC)
+	sed -i -e '/lto/s:fat:thin:' Cargo.toml || die
+
+	# enable system libraries where supported
+	export ZSTD_SYS_USE_PKG_CONFIG=1
+	# TODO: unbundle libz-ng-sys, tikv-jemalloc-sys?
+
+	# bzip2-sys requires a pkg-config file
+	# https://github.com/alexcrichton/bzip2-rs/issues/104
+	mkdir "${T}/pkg-config" || die
+	export PKG_CONFIG_PATH=${T}/pkg-config${PKG_CONFIG_PATH+:${PKG_CONFIG_PATH}}
+	cat >> "${T}/pkg-config/bzip2.pc" <<-EOF || die
+		Name: bzip2
+		Version: 9999
+		Description:
+		Libs: -lbz2
+	EOF
+}
+
+src_configure() {
+	local myfeatures=(
+		git
+		pypi
+		python
+	)
+
+	cargo_src_configure --no-default-features
+}
+
+src_compile() {
+	cd crates/uv || die
+	cargo_src_compile
+}
+
+src_test() {
+	# work around https://github.com/astral-sh/uv/issues/4376
+	local -x PATH=${BROOT}/usr/lib/python-exec/python3.12:${PATH}
+	local -x COLUMNS=100
+	local -x PYTHONDONTWRITEBYTECODE=
+	# fix tests failing because of our config
+	local -x XDG_CONFIG_DIRS=${T}
+
+	cd crates/uv || die
+	cargo_src_test --no-fail-fast
+}
+
+src_install() {
+	cd crates/uv || die
+	cargo_src_install
+
+	insinto /etc/xdg/uv
+	newins - uv.toml <<-EOF || die
+		# These defaults match Fedora, see:
+		# https://src.fedoraproject.org/rpms/uv/pull-request/18
+
+		# By default ("automatic"), uv downloads missing Python versions
+		# automatically and keeps them in the user's home directory.
+		# Disable that to make downloading opt-in, and especially
+		# to avoid unnecessarily fetching custom Python when the distro
+		# package would be preferable.  Python builds can still be
+		# downloaded manually via "uv python install".
+		#
+		# https://docs.astral.sh/uv/reference/settings/#python-downloads
+		python-downloads = "manual"
+
+		# By default ("managed"), uv always prefers self-installed
+		# Python versions over the system Python, independently
+		# of versions.  Since we generally expect users to use that
+		# to install old Python versions not in ::gentoo anymore,
+		# this effectively means that uv would end up preferring very
+		# old Python versions over the newer ones that are provided
+		# by the system.  Default to using the system versions to avoid
+		# this counter-intuitive behavior.
+		#
+		# https://docs.astral.sh/uv/reference/settings/#python-preference
+		python-preference = "system"
+	EOF
+}