simple-git-versioning 0.2.5

Thinly scoped and opinionated tool that computes a version number from git tags and trailers

Opinionated version numbering CLIs, and library

---

This project aims at easing the burden of computing and managing a project's version numbers by leveraging git tags and commit trailers.

simple-git-versioning provides two CLIs: semver2 and pep440, one for each supported versioning sheme of the same name: SemVer2 and PEP440.

Integration with setuptools is supported.

Snippets to expose your project's version number programatically are provided in the Libraries section.

Installation

With pip:

pip install simple-git-versioning

Usage

By default, pep440 and semver2 will compute a version number of the form X.Y.Z. Every project starts at 0.0.0 on their initial commit, and each commit after that increments the number Z by one, unless they include a Version-Bump trailer (case-insensitive) with a value of:

• major: X is incremented;
• minor: Y is incremented;
• patch: Z is incremented (same as the default).

Each tool then provides the ability to switch to a pre-release mode; or post-release, and/or dev release, etc. in the case of pep440.

CLIs

All CLIs provide comprehensive help messages, available via the --help option.

Libraries

Libraries that wish to expose their version number programatically may do so by including the following snippet:

PEP440

from importlib.metadata import PackageNotFoundError, version
from pathlib import Path

from versioning.pep440 import NoVersion, Project

try:
    __version__ = version("<your python package's name>")
except PackageNotFoundError:
    # package is not installed
    with Project(path=Path(__file__).parent) as project:
        try:
            __version__ = str(project.version())
        except NoVersion:
            __version__ = str(project.release(dev=0))

SemVer2

from importlib.metadata import PackageNotFoundError, version
from pathlib import Path

from versioning.semver2 import NoVersion, Project

try:
    __version__ = version("<your python package's name>")
except PackageNotFoundError:
    # package is not installed
    with Project(path=Path(__file__).parent) as project:
        try:
            __version__ = str(project.version())
        except NoVersion:
            __version__ = str(project.release(pre=("dev", 0))

poetry

If you use poetry as a build frontend and backend for your project, you can configure simple-git-versioning to derive a version automatically as follows:

Install simple-git-versioning alongside poetry:

poetry self add "simple-git-versioning>=0.2"

Enable the poetry integration in your pyproject.toml, and pick the versioning scheme you wish to apply:

[tool.poetry]
...

[tool.simple-git-versioning]
poetry = "pep440"  # or "semver2"

Note that poetry mandates a version always be set in pyproject.toml, so you will have to keep a placeholder there (e.g. version: "0.0.0").

setuptools

If you use setuptools as a build backend for your project, you can configure simple-git-versioning to derive a version automatically as follows:

In your pyproject.toml:

• declare version as a dynamic metadata field;
• add simple-git-versioning to your project's build-system.requires;
• enable the setuptools integration in your pyproject.toml, and pick the versioning scheme you wish to apply.

[project]
name = ...
dynamic = ["version"]

[build-system]
requires = ["setuptools>=63", "simple-git-versioning"]
build-backend = "setuptools.build_meta"

[tool.simple-git-versioning]
setuptools = "pep440"  # or "semver2"

I recommend checking out setuptools-scm and setuptools-pipfile, two other setuptools extensions I find greatly helpful.