1799674 - migrate moz-phab from setup.py to pyproject.toml

Status: RESOLVED FIXED

(Conduit :: moz-phab, task)

Description

[Connor Sheehan [:sheehan]]

setup.py will be deprecated in the near future. We should migrate to pyproject.toml and the new setuptools build infrastructure.

This will also allow us to use setuptools_scm to determine the package version number from Git tags, simplifying our maintenance/release process.

Comment 1

[Connor Sheehan [:sheehan]]

Attachment: build: migrate from `setup.py` to `pyproject.toml` (Bug 1799674) r=zeid

Migrate from setup.py to pyproject.toml. setup.py is converted
into a simple stub that calls setuptools.setup(), a recommended
workaround to ensure editable installs work for packages using
the new build tooling. Fields from setup.py are converted to
their equivalent in the project section of pyproject.toml.
importlib_metadata is added as an optional dependency on Python
earlier than 3.8, and environment.py is updated to use it to
retrieve package information. CircleCI builds moz-phab via the
build package from PyPA. The README is updated to reflect no
longer needing to push a version update commit, as setuptools_scm
now parses version information from Git tags in the repo.