[gentoo-dev] [PATCH 4/6] distutils-r1.eclass: Add pytest-xdist dep if EPYTEST_XDIST is set

["Michał Górny" <mgorny@gentoo.org>]

Make `distutils_enable_tests pytest` automatically add
the `dev-python/pytest-xdist` dependency if `EPYTEST_XDIST` is set.

Signed-off-by: Michał Górny <mgorny@gentoo.org>
---
 eclass/distutils-r1.eclass    | 3 +++
 eclass/python-utils-r1.eclass | 4 +++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/eclass/distutils-r1.eclass b/eclass/distutils-r1.eclass
index 3d69911d9209..3d756eaad556 100644
--- a/eclass/distutils-r1.eclass
+++ b/eclass/distutils-r1.eclass
@@ -617,6 +617,9 @@ distutils_enable_tests() {
 			;;
 		pytest)
 			test_pkgs='>=dev-python/pytest-7.3.1[${PYTHON_USEDEP}]'
+			if [[ ${EPYTEST_XDIST} ]]; then
+				test_pkgs+=' dev-python/pytest-xdist[${PYTHON_USEDEP}]'
+			fi
 			;;
 		setup.py)
 			;;
diff --git a/eclass/python-utils-r1.eclass b/eclass/python-utils-r1.eclass
index f2a8d4d0f65e..c61f9e2ecb94 100644
--- a/eclass/python-utils-r1.eclass
+++ b/eclass/python-utils-r1.eclass
@@ -1311,7 +1311,9 @@ _python_check_occluded_packages() {
 # @DEFAULT_UNSET
 # @DESCRIPTION:
 # If set to a non-empty value, enables running tests in parallel
-# via pytest-xdist plugin.
+# via pytest-xdist plugin.  If this variable is set prior to calling
+# distutils_enable_tests in distutils-r1, a test dependency
+# on dev-python/pytest-xdist is added automatically.
 
 # @VARIABLE: EPYTEST_JOBS
 # @USER_VARIABLE
-- 
2.42.0