From 8464abe56ccbbf09f768df47707d2ff2c4c7b264 Mon Sep 17 00:00:00 2001
From: Sean Mooney <work@seanmooney.info>
Date: Sat, 28 Oct 2023 06:50:11 +0100
Subject: [PATCH] add pyproject.toml to support pip 23.1

pip 23.1 removed the "setup.py install" fallback for projects
that do not have pyproject.toml and now uses a pyproject.toml
which is vendored in pip.
To address that, this change adds the minimal pyproject.toml
to enable pbr to be properly used to build editable wheels.

This is required to support installing devstack on
centos stream 9 and related distros with GLOBAL_VENV=True
Without this change the wsgi scripts are not generated in
editable mode. i.e. pip install -e /opt/stack/keystone

See https://pip.pypa.io/en/stable/news/#v23-1
and https://github.com/pypa/pip/issues/8368 for more
details on the removal of the fallback support.

setuptools v64.0.0 is used to support editable installs
via its PEP-660 implmentation
https://github.com/pypa/setuptools/pull/3488

Depends-On: https://review.opendev.org/c/openstack/devstack/+/902758
Change-Id: I3255edb67fd7fe7a25b5871ec071c4b4c9d98ac2
---
 pyproject.toml | 3 +++
 1 file changed, 3 insertions(+)
 create mode 100644 pyproject.toml

diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 000000000000..5e862a9593ae
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,3 @@
+[build-system]
+requires = ["pbr>=6.0.0", "setuptools>=64.0.0"]
+build-backend = "pbr.build"