deltalake-1.6.1stuff
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# Copyright 1999-2026 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
DISTUTILS_EXT=1
DISTUTILS_USE_PEP517=maturin
PYTHON_COMPAT=( python3_{12..14} )
CRATES="
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"
# delta-rs 1.6.1 switched delta-kernel from the crates.io release (buoyant_kernel
# 0.22.2 in 1.6.0) to the buoyant-data delta-kernel-rs fork pinned to a branch
# commit, so these two move out of CRATES into GIT_CRATES (fetched + extracted).
# The eclass's generated [patch] does NOT redirect a branch-pinned + package-
# renamed git dep under the maturin/offline build, so src_prepare also repoints
# the workspace dep at the extracted tree. verified 2026-06-25.
KERNEL_COMMIT="393fbf662f56c4bb04445e1d36805a33e32b8fbc"
declare -A GIT_CRATES=(
[buoyant_kernel]="https://github.com/buoyant-data/delta-kernel-rs;${KERNEL_COMMIT};delta-kernel-rs-%commit%/kernel"
[buoyant_kernel_derive]="https://github.com/buoyant-data/delta-kernel-rs;${KERNEL_COMMIT};delta-kernel-rs-%commit%/derive-macros"
)
inherit cargo distutils-r1
DESCRIPTION="Native Delta Lake Python binding based on delta-rs"
HOMEPAGE="
https://github.com/delta-io/delta-rs
https://pypi.org/project/deltalake/
https://delta-io.github.io/delta-rs/
"
# 1.6.0 is wheel-only on PyPI (no sdist), so source comes from the
# delta-io/delta-rs monorepo at the python-v${PV} tag. The maturin
# project lives in python/; its Cargo.lock is NOT committed upstream
# (gitignored) — CRATES above was generated from `cargo generate-lockfile`
# (workspace: crates/* + python). See the deltalake memory for the recipe.
SRC_URI="
https://github.com/delta-io/delta-rs/archive/refs/tags/python-v${PV}.tar.gz -> ${P}.gh.tar.gz
${CARGO_CRATE_URIS}
"
S="${WORKDIR}/delta-rs-python-v${PV}/python"
LICENSE="Apache-2.0"
# Dependent crate licenses
LICENSE+="
Apache-2.0 Apache-2.0-with-LLVM-exceptions BSD-2 BSD CC0-1.0
CDLA-Permissive-2.0 ISC MIT MPL-2.0 Unicode-3.0 ZLIB BZIP2
"
SLOT="0"
KEYWORDS="~amd64 ~arm64"
RDEPEND="
>=dev-python/arro3-core-0.5.0[${PYTHON_USEDEP}]
>=dev-python/deprecated-1.2.18[${PYTHON_USEDEP}]
"
# Tests need network access to localstack/azure/gcp emulators.
RESTRICT="test"
src_prepare() {
# Repoint delta-rs's branch-pinned + package-renamed `delta_kernel` git dep
# at the GIT_CRATES-extracted tree (eclass [patch] doesn't cover it — see the
# GIT_CRATES note above; cargo would otherwise attempt a live checkout and die
# offline). Upstream ships exactly this as a commented `path =` variant; with
# no committed Cargo.lock, cargo then resolves the path dep + vendored registry
# crates fully offline. verified 2026-06-25.
local ws_toml="${WORKDIR}/delta-rs-python-v${PV}/Cargo.toml"
local from='git = "https://github.com/buoyant-data/delta-kernel-rs", branch = "buoyant/main"'
local to="path = \"${WORKDIR}/delta-kernel-rs-${KERNEL_COMMIT}/kernel\""
grep -qF "${from}" "${ws_toml}" ||
die "delta_kernel git dep line not found — upstream changed the pin form, re-audit"
sed -i -e "s|${from}|${to}|" "${ws_toml}" || die
distutils-r1_src_prepare
}