commit: ec67342e2635049fcba3755a0efaab3e02bbbecc Author: Michał Górny <mgorny <AT> gentoo <DOT> org> AuthorDate: Sat Jul 5 06:31:02 2025 +0000 Commit: Michał Górny <mgorny <AT> gentoo <DOT> org> CommitDate: Sat Jul 12 05:05:19 2025 +0000 URL: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=ec67342e
python-utils-r1.eclass: Add EPYTEST_PLUGIN_LOAD_VIA_ENV Add an `EPYTEST_PLUGIN_LOAD_VIA_ENV` option to explicitly load plugins via `PYTEST_PLUGINS` environment variable rather than `-p` options. This is useful for testing pytest plugins. While the use case is not very common and therefore may not deserve explicit eclass support, the value of `PYTEST_PLUGINS` consists of Python import names that are not trivial to find and have historically changed across package versions. Signed-off-by: Michał Górny <mgorny <AT> gentoo.org> Part-of: https://github.com/gentoo/gentoo/pull/42876 Signed-off-by: Michał Górny <mgorny <AT> gentoo.org> eclass/python-utils-r1.eclass | 62 +++++++++++++++++++++++++++++++------------ 1 file changed, 45 insertions(+), 17 deletions(-) diff --git a/eclass/python-utils-r1.eclass b/eclass/python-utils-r1.eclass index bbb57901f281..68faa9e2adf9 100644 --- a/eclass/python-utils-r1.eclass +++ b/eclass/python-utils-r1.eclass @@ -1312,6 +1312,15 @@ _python_check_occluded_packages() { # The recommended way to disable it in EAPI 8 or earlier is to set # EPYTEST_PLUGINS (possibly to an empty array). +# @ECLASS_VARIABLE: EPYTEST_PLUGIN_LOAD_VIA_ENV +# @DEFAULT_UNSET +# @DESCRIPTION: +# If set to a non-empty value, plugins will be loaded via PYTEST_PLUGINS +# environment variable rather than explicit "-p" options. This ensures +# that plugins are passed down to subprocess, which may be necessary +# when testing pytest plugins. However, this is also more likely +# to cause duplicate plugin errors. + # @FUNCTION: _set_epytest_plugins # @INTERNAL # @DESCRIPTION: @@ -1442,23 +1451,39 @@ epytest() { if [[ ${PYTEST_DISABLE_PLUGIN_AUTOLOAD} ]]; then if [[ ${EPYTEST_PLUGINS[@]} ]]; then - local plugin_args=() - readarray -t -d '' plugin_args < <( - "${EPYTHON}" - "${EPYTEST_PLUGINS[@]}" <<-EOF || die - import os - import sys - from importlib.metadata import distribution, entry_points - - env_plugins = os.environ.get("PYTEST_PLUGINS", "").split(",") - packages = {distribution(x).name for x in sys.argv[1:]} - eps = { - f"-p{x.name}" for x in entry_points(group="pytest11") - if x.dist.name in packages and x.value not in env_plugins - } - sys.stdout.write("\\0".join(sorted(eps))) - EOF - ) - args+=( "${plugin_args[@]}" ) + if [[ ${EPYTEST_PLUGIN_LOAD_VIA_ENV} ]]; then + local -x PYTEST_PLUGINS=$( + "${EPYTHON}" - "${EPYTEST_PLUGINS[@]}" <<-EOF || die + import sys + from importlib.metadata import distribution, entry_points + + packages = {distribution(x).name for x in sys.argv[1:]} + plugins = { + x.value for x in entry_points(group="pytest11") + if x.dist.name in packages + } + sys.stdout.write(",".join(sorted(plugins))) + EOF + ) + else + local plugin_args=() + readarray -t -d '' plugin_args < <( + "${EPYTHON}" - "${EPYTEST_PLUGINS[@]}" <<-EOF || die + import os + import sys + from importlib.metadata import distribution, entry_points + + env_plugins = os.environ.get("PYTEST_PLUGINS", "").split(",") + packages = {distribution(x).name for x in sys.argv[1:]} + eps = { + f"-p{x.name}" for x in entry_points(group="pytest11") + if x.dist.name in packages and x.value not in env_plugins + } + sys.stdout.write("\\0".join(sorted(eps))) + EOF + ) + args+=( "${plugin_args[@]}" ) + fi fi else args+=( @@ -1541,6 +1566,9 @@ epytest() { done set -- "${EPYTHON}" -m pytest "${args[@]}" "${@}" ${EPYTEST_FLAGS} + if [[ ${PYTEST_PLUGINS} ]]; then + einfo "PYTEST_PLUGINS=${PYTEST_PLUGINS}" + fi echo "${@}" >&2 "${@}" local ret=${?}
