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This provides a plugin for Hatch that uses your preferred version control system (like Git) to determine project versions.
Table of Contents
Ensure hatch-vcs
is defined within the build-system.requires
field in your pyproject.toml
file.
[build-system]
requires = ["hatchling", "hatch-vcs"]
build-backend = "hatchling.build"
The version source plugin name is vcs
.
-
pyproject.toml
[tool.hatch.version] source = "vcs"
-
hatch.toml
[version] source = "vcs"
Option | Type | Default | Description |
---|---|---|---|
tag-pattern |
str |
see code | A regular expression used to extract the version part from VCS tags. The pattern needs to contain either a single match group, or a group named version , that captures the actual version information. |
fallback-version |
str |
The version that will be used if no other method for detecting the version is successful. If not specified, unsuccessful version detection will raise an error. | |
raw-options |
dict |
A table of setuptools-scm parameters that will override any of the options listed above. The write_to and write_to_template parameters are ignored. |
-
SETUPTOOLS_SCM_PRETEND_VERSION
: When defined and not empty, it's used as the primary source for the version, in which case it will be an unparsed string.
The build hook plugin name is vcs
.
-
pyproject.toml
[tool.hatch.build.hooks.vcs] version-file = "_version.py"
-
hatch.toml
[build.hooks.vcs] version-file = "_version.py"
Building or installing when the latest tag is v1.2.3
will generate the file
-
_version.py
# coding: utf-8 # file generated by setuptools_scm # don't change, don't track in version control __version__ = version = '1.2.3' __version_tuple__ = version_tuple = (1, 2, 3)
Option | Type | Default | Description |
---|---|---|---|
version-file |
str |
REQUIRED | The relative path to the file that gets updated with the current version. |
template |
str |
The template used to overwrite the version-file . See the code for the default template for each file extension. |
The version file is only updated upon install or build. Thus the version number in an editable install (Hatch's dev mode) will be incorrect if the version changes and the project is not rebuilt. An unsupported workaround for keeping the version number up-to-date can be found at hatch-vcs-footgun-example.
Note: only Git is supported
The metadata hook plugin is for inserting VCS data (currently the commit hash) into metadata fields other than version
. Its name is vcs
.
-
pyproject.toml
[tool.hatch.metadata.hooks.vcs]
-
hatch.toml
[metadata.hooks.vcs]
The urls
option is equivalent to project.urls
except that each URL supports context formatting with the following fields:
-
commit_hash
- the latest commit hash
Be sure to add urls
to project.dynamic
:
-
pyproject.toml
[project] dynamic = [ "urls", ]
-
pyproject.toml
[tool.hatch.metadata.hooks.vcs.urls] Homepage = "https://www.example.com" source_archive = "https://github.com/org/repo/archive/{commit_hash}.zip"
-
hatch.toml
[metadata.hooks.vcs.urls] Homepage = "https://www.example.com" source_archive = "https://github.com/org/repo/archive/{commit_hash}.zip"
If you are migrating from setuptools, you may want access to the version without performing a full build.
By default, python -m setuptools_scm
will display the version and perform any side-effects
like writing to a file. hatch
separates these functions.
hatch version
will print the version to the terminal without modifying the source directory.
$ hatch version
23.0.0.dev17+g462372ba
If version-file
is defined, you can write it to the source directory with the build
command,
using the --hooks-only
flag to modify the source tree but skip creation of sdists or wheels.
$ hatch build --hooks-only
$ cat package/_version.py
# file generated by setuptools_scm
# don't change, don't track in version control
__version__ = version = '23.0.0.dev17+g462372ba'
__version_tuple__ = version_tuple = (23, 0, 0, 'dev17', 'g462372ba')
hatch-vcs
is distributed under the terms of the MIT license.