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# Copyright 2023 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
# @ECLASS: pypi.eclass
# @MAINTAINER:
# Michał Górny <mgorny@gentoo.org>
# @AUTHOR:
# Michał Górny <mgorny@gentoo.org>
# @SUPPORTED_EAPIS: 7 8
# @BLURB: A helper eclass to generate PyPI source URIs
# @DESCRIPTION:
# The pypi.eclass can be used to easily obtain URLs for artifacts
# uploaded to PyPI.org. When inherited, the eclass defaults SRC_URI
# to fetch ${P}.tar.gz sdist.
#
# If necessary, SRC_URI can be overriden by the ebuild. Two helper
# functions, pypi_sdist_url and pypi_wheel_url are provided to generate
# URLs to artifacts of specified type, with customizable project name.
# Additionally, pypi_wheel_name can be used to generate wheel filename.
#
# @EXAMPLE:
# @CODE@
# inherit pypi
#
# SRC_URI="$(pypi_sdist_url "${PN^}" "${PV}")"
# S=${WORKDIR}/${P^}
# @CODE@
case ${EAPI} in
7|8) ;;
*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
esac
if [[ ! ${_PYPI_ECLASS} ]]; then
_PYPI_ECLASS=1
SRC_URI="
https://files.pythonhosted.org/packages/source/${PN::1}/${PN}/${P}.tar.gz
"
# @FUNCTION: pypi_sdist_url
# @USAGE: [<project> [<version> [<suffix>]]]
# @DESCRIPTION:
# Output the URL to PyPI sdist for specified project/version tuple.
#
# If <package> is unspecified, it defaults to ${PN}.
#
# If <version> is unspecified, it defaults to ${PV}.
#
# If <format> is unspecified, it defaults to ".tar.gz". Another valid
# value is ".zip" (please remember to add a BDEPEND on app-arch/unzip).
pypi_sdist_url() {
if [[ ${#} -gt 3 ]]; then
die "Usage: ${FUNCNAME} <project> [<version> [<suffix>]]"
fi
local project=${1-"${PN}"}
local version=${2-"${PV}"}
local suffix=${3-.tar.gz}
printf "https://files.pythonhosted.org/packages/source/%s" \
"${project::1}/${project}/${project}-${version}${suffix}"
}
# @FUNCTION: pypi_wheel_name
# @USAGE: [<project> [<version> [<python-tag> [<abi-platform-tag>]]]]
# @DESCRIPTION:
# Output the wheel filename for the specified project/version tuple.
#
# If <package> is unspecified, it defaults to ${PN}.
#
# If <version> is unspecified, it defaults to ${PV}.
#
# If <python-tag> is unspecified, it defaults to "py3". It can also be
# "py2.py3", or a specific version in case of non-pure wheels.
#
# If <abi-platform-tag> is unspecified, it defaults to "none-any".
# You need to specify the correct value for non-pure wheels,
# e.g. "abi3-linux_x86_64".
pypi_wheel_name() {
if [[ ${#} -gt 4 ]]; then
die "Usage: ${FUNCNAME} <project> [<version> [<python-tag> [<abi-platform-tag>]]]"
fi
local project=${1-"${PN}"}
local version=${2-"${PV}"}
local pytag=${3-py3}
local abitag=${4-none-any}
echo "${project}-${version}-${pytag}-${abitag}.whl"
}
# @FUNCTION: pypi_wheel_url
# @USAGE: [--unpack] [<project> [<version> [<python-tag> [<abi-platform-tag>]]]]
# @DESCRIPTION:
# Output the URL to PyPI wheel for specified project/version tuple.
#
# The `--unpack` option causes a SRC_URI with an arrow operator to
# be generated, that adds a .zip suffix to the fetched distfile,
# so that it is unpacked in default src_unpack(). Note that
# the wheel contents will be unpacked straight into ${WORKDIR}.
# You need to add a BDEPEND on app-arch/unzip.
#
# If <package> is unspecified, it defaults to ${PN}.
#
# If <version> is unspecified, it defaults to ${PV}.
#
# If <python-tag> is unspecified, it defaults to "py3". It can also be
# "py2.py3", or a specific version in case of non-pure wheels.
#
# If <abi-platform-tag> is unspecified, it defaults to "none-any".
# You need to specify the correct value for non-pure wheels,
# e.g. "abi3-linux_x86_64".
pypi_wheel_url() {
local unpack=
if [[ ${1} == --unpack ]]; then
unpack=1
shift
fi
if [[ ${#} -gt 4 ]]; then
die "Usage: ${FUNCNAME} <project> [<version> [<python-tag> [<abi-platform-tag>]]]"
fi
local filename=$(pypi_wheel_name "${@}")
local project=${1-"${PN}"}
local version=${2-"${PV}"}
local pytag=${3-py3}
printf "https://files.pythonhosted.org/packages/%s" \
"${pytag}/${project::1}/${project}/${filename}"
if [[ ${unpack} ]]; then
echo " -> ${filename}.zip"
fi
}
fi
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