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Signed-off-by: Michał Górny <mgorny@g.o> |
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--- |
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eclass/distutils-r1.eclass | 110 +++++++++++++++++++++---------------- |
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1 file changed, 63 insertions(+), 47 deletions(-) |
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|
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diff --git a/eclass/distutils-r1.eclass b/eclass/distutils-r1.eclass |
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index 2b5acb09d926..81eea83c67b3 100644 |
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--- a/eclass/distutils-r1.eclass |
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+++ b/eclass/distutils-r1.eclass |
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@@ -922,6 +922,68 @@ _distutils-r1_backend_to_key() { |
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esac |
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} |
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|
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+# @FUNCTION: _distutils-r1_get_backend |
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+# @INTERNAL |
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+# @DESCRIPTION: |
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+# Read (or guess, in case of setuptools) the build-backend |
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+# for the package in the current directory. |
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+_distutils-r1_get_backend() { |
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+ debug-print-function ${FUNCNAME} "${@}" |
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+ |
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+ local build_backend |
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+ if [[ -f pyproject.toml ]]; then |
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+ # if pyproject.toml exists, try getting the backend from it |
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+ # NB: this could fail if pyproject.toml doesn't list one |
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+ build_backend=$("${EPYTHON}" -c 'import tomli; \ |
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+ print(tomli.load(open("pyproject.toml", "rb")) \ |
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+ ["build-system"]["build-backend"])' 2>/dev/null) |
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+ fi |
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+ if [[ -z ${build_backend} && ${DISTUTILS_USE_PEP517} == setuptools && |
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+ -f setup.py ]] |
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+ then |
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+ # use the legacy setuptools backend as a fallback |
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+ build_backend=setuptools.build_meta:__legacy__ |
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+ fi |
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+ if [[ -z ${build_backend} ]]; then |
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+ die "Unable to obtain build-backend from pyproject.toml" |
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+ fi |
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+ |
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+ if [[ ${DISTUTILS_USE_PEP517} != standalone ]]; then |
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+ # verify whether DISTUTILS_USE_PEP517 was set correctly |
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+ local expected_value=$(_distutils-r1_backend_to_key "${build_backend}") |
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+ if [[ ${DISTUTILS_USE_PEP517} != ${expected_value} ]]; then |
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+ eerror "DISTUTILS_USE_PEP517 does not match pyproject.toml!" |
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+ eerror " have: DISTUTILS_USE_PEP517=${DISTUTILS_USE_PEP517}" |
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+ eerror "expected: DISTUTILS_USE_PEP517=${expected_value}" |
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+ eerror "(backend: ${build_backend})" |
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+ die "DISTUTILS_USE_PEP517 value incorrect" |
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+ fi |
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+ |
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+ # fix deprecated backends up |
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+ local new_backend= |
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+ case ${build_backend} in |
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+ flit.buildapi) |
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+ new_backend=flit_core.buildapi |
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+ ;; |
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+ poetry.masonry.api) |
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+ new_backend=poetry.core.masonry.api |
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+ ;; |
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+ esac |
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+ |
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+ if [[ -n ${new_backend} ]]; then |
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+ if [[ ! -f ${T}/.distutils_deprecated_backend_warned ]]; then |
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+ eqawarn "${build_backend} backend is deprecated. Please see:" |
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+ eqawarn "https://projects.gentoo.org/python/guide/distutils.html#deprecated-pep-517-backends" |
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+ eqawarn "The eclass will be using ${new_backend} instead." |
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+ > "${T}"/.distutils_deprecated_backend_warned || die |
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+ fi |
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+ build_backend=${new_backend} |
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+ fi |
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+ fi |
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+ |
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+ echo "${build_backend}" |
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+} |
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+ |
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# @FUNCTION: distutils-r1_python_compile |
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# @USAGE: [additional-args...] |
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# @DESCRIPTION: |
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@@ -968,53 +1030,7 @@ distutils-r1_python_compile() { |
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local -x WHEEL_BUILD_DIR=${BUILD_DIR}/wheel |
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mkdir -p "${WHEEL_BUILD_DIR}" || die |
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|
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- local build_backend |
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- if [[ -f pyproject.toml ]]; then |
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- build_backend=$("${EPYTHON}" -c 'import tomli; \ |
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- print(tomli.load(open("pyproject.toml", "rb")) \ |
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- ["build-system"]["build-backend"])' 2>/dev/null) |
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- fi |
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- if [[ -z ${build_backend} && ${DISTUTILS_USE_PEP517} == setuptools && |
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- -f setup.py ]] |
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- then |
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- # use the legacy setuptools backend |
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- build_backend=setuptools.build_meta:__legacy__ |
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- fi |
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- [[ -z ${build_backend} ]] && |
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- die "Unable to obtain build-backend from pyproject.toml" |
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- |
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- if [[ ${DISTUTILS_USE_PEP517} != standalone ]]; then |
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- local expected_value=$(_distutils-r1_backend_to_key "${build_backend}") |
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- if [[ ${DISTUTILS_USE_PEP517} != ${expected_value} ]]; then |
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- eerror "DISTUTILS_USE_PEP517 does not match pyproject.toml!" |
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- eerror " have: DISTUTILS_USE_PEP517=${DISTUTILS_USE_PEP517}" |
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- eerror "expected: DISTUTILS_USE_PEP517=${expected_value}" |
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- eerror "(backend: ${build_backend})" |
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- die "DISTUTILS_USE_PEP517 value incorrect" |
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- fi |
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- |
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- # fix deprecated backends up |
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- local new_backend= |
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- case ${build_backend} in |
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- flit.buildapi) |
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- new_backend=flit_core.buildapi |
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- ;; |
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- poetry.masonry.api) |
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- new_backend=poetry.core.masonry.api |
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- ;; |
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- esac |
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- |
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- if [[ -n ${new_backend} ]]; then |
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- if [[ ! ${_DISTUTILS_DEPRECATED_BACKEND_WARNED} ]]; then |
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- eqawarn "${build_backend} backend is deprecated. Please see:" |
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- eqawarn "https://projects.gentoo.org/python/guide/distutils.html#deprecated-pep-517-backends" |
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- eqawarn "The eclass will be using ${new_backend} instead." |
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- _DISTUTILS_DEPRECATED_BACKEND_WARNED=1 |
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- fi |
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- build_backend=${new_backend} |
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- fi |
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- fi |
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- |
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+ local build_backend=$(_distutils-r1_get_backend) |
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einfo " Building the wheel via ${build_backend}" |
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"${EPYTHON}" -c "import ${build_backend%:*}; \ |
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import os; \ |
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-- |
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2.35.1 |
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