project: Switch to pyproject

Starting with PEP 621, `pyproject.toml` is the standard way of
specifying project metadata.

Also switch to using the version from `pyproject.toml` instead of having
a west.version python module. Adjust documentation for the same.

Update MAINTAINERS.rst to use build for dist building.

Signed-off-by: Ayush Singh <ayush@beagleboard.org>

Author: Ayush1325

MAINTAINERS.rst

@@ -66,8 +66,8 @@ Pre-release test plan
 
 7. Assuming that all went well (if it didn't, go fix it and repeat):
 
-   - update __version__ to 'X.Y.Z' (i.e. drop the 'aN' suffix that denotes
-     alpha N)
+   - update version in pyproject.toml to 'X.Y.Z' (i.e. drop the 'aN' suffix
+     that denotes alpha N)
 
    - tag the release on GitHub (see "Tagging the release" for a procedure)
 
@@ -88,12 +88,15 @@ Building and uploading the release wheels
 You need the zephyr-project PyPI credentials for the 'twine upload' command. ::
 
   git clean -ffdx
-  python3 setup.py sdist bdist_wheel
+  pip3 install --upgrade build twine
+  pyproject-build
   twine upload -u zephyr-project dist/*
 
 The 'git clean' step is important. We've anecdotally observed broken wheels
 being generated from dirty repositories.
 
+Check out [packaging.python.org](https://packaging.python.org/en/latest/tutorials/packaging-projects/#generating-distribution-archives) for more detailed instructions.
+
 Tagging the release
 -------------------
 
@@ -158,7 +161,7 @@ Summary of what happens:
 3. In vX.Y-branch, in src/west/version.py, set __version__ to X.Y.0a1.
    Push this to origin/vX.Y-branch. You don't need a PR for this.
 
-4. In the main branch, set __version__ to X.Y.99.
+4. In the main branch, set version in pyproject.toml to X.Y.99.
    Push this to origin/main. You don't need a PR for this.
 
 5. Create an annotated tag vX.Y.99 which points to the main branch commit you

pyproject.toml

@@ -0,0 +1,46 @@
+[build-system]
+requires = ["setuptools>=61.2"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "west"
+version = "1.2.99"
+authors = [{name = "Zephyr Project", email = "devel@lists.zephyrproject.org"}]
+description = "Zephyr RTOS Project meta-tool"
+classifiers = [
+    "Programming Language :: Python :: 3",
+    "License :: OSI Approved :: Apache Software License",
+    "Operating System :: POSIX :: Linux",
+    "Operating System :: MacOS :: MacOS X",
+    "Operating System :: Microsoft :: Windows",
+]
+requires-python = ">=3.8"
+dependencies = [
+    "colorama",
+    "PyYAML>=5.1",
+    "pykwalify",
+    "setuptools",
+    "packaging",
+]
+
+[project.license]
+file = "LICENSE"
+
+[project.readme]
+file = "README.rst"
+content-type = "text/x-rst"
+
+[project.urls]
+Homepage = "https://github.com/zephyrproject-rtos/west"
+
+[project.scripts]
+west = "west.app.main:main"
+
+[tool.setuptools]
+package-dir = {"" = "src"}
+zip-safe = false
+include-package-data = true
+
+[tool.setuptools.packages.find]
+where = ["src"]
+namespaces = false

setup.py

@@ -5,7 +5,9 @@
 # This is the Python 3 version of option 3 in:
 # https://packaging.python.org/guides/single-sourcing-package-version/#single-sourcing-the-version
 
-__version__ = '1.2.99'
+import importlib.metadata
+
+__version__ = importlib.metadata.version("west")
 #
 # MAINTAINERS:
 #