2. Usage: polyversion library¶
version: | 0.2.2a1 |
---|---|
updated: | 2018-08-07T13:30:07.616687 |
Documentation: | http://polyvers.readthedocs.io/en/latest/usage-pvlib.html |
repository: | https://github.com/JRCSTU/polyvers |
pypi-repo: | https://pypi.org/project/polyversion/ |
copyright: | 2018 JRC.C4(STU), European Commission (JRC) |
license: | MIT License |
The python 2.7+ library needed by (sub-)projects managed by polyvers cmd to derive their version-ids on runtime from Git.
Specifically, the configuration file .polyvers.yaml
is NOT read -
you have to repeat any non-default configurations as function/method keywords
when calling this API.
Here only a very rudimentary documentation is provided - consult polyvers documents provided in the link above.
Note
Only this library is (permissive) MIT-licensed, so it can be freely vendorized by any program - the respective polyvers command-line tool is “copylefted” under EUPLv1.2.
2.1. Quickstart¶
- There are 4 ways to use this library:
- As a setuptools plugin;
- through its Python-API (to dynamically version your project);
- through its barebone cmdline tool:
polyversion
(installation required); - through the standalone executable wheel:
bin/pvlib.run
(no installation, but sources required; behaves identically topolyversion
command).
2.1.1. setuptools usage¶
The polyversion library function as a setuptools “plugin”, and
adds two new setup()
keywords for deriving subproject versions
from PKG-INFO or git tags (see polyversion.init_plugin_kw()
):
- keyword:
polyversion --> (bool | dict)
When a dict, its keys roughly mimic those in
polyversion()
, and can be used like this:from setuptools import setup setup( project='myname', version='' # omit (or None) to abort if cannot auto-version polyversion={ # dict or bool 'mono_project': True, # false by default ... # See `polyversion.init_plugin_kw()` for more keys. }, setup_requires=[..., 'polyversion'], ... )
- keyword:
- keyword:
polyversion_check_bdist_enabled --> bool
When it is true, the bdist-check is enabled, and any bdist_* setup-commands (e.g.
bdist_wheel
) will abort if not run from engraved sources (ie from an release tag).To enable this check without editing the sources, add the following into your
$CWD/setup.cfg
file:[global] polyversion_check_bdist_enabled = true ...
- keyword:
2.1.2. API usage¶
An API sample of using also polytime()
from within your
myproject.git/myproject/__init__.py
file:
from polyversion import polyversion, polytime # no hack, dependency already installed
__version__ = polyversion() # project assumed equal to this module-name: 'myproject'
__updated__ = polytime()
...
Tip
Depending on your repo’s versioning scheme (eg you have a mono-project repo,
with version-tags simply like vX.Y.Z
), you must add in both invocations
of polyversion.polyversion()
above the kw-arg mono_project=True
.
2.1.3. Console usage¶
The typical command-line usage of this library (assuming you don’t want to install the full blown polyvers command tool) is given below:
user@host:~/ $ polyversion --help
Describe the version of a *polyvers* projects from git tags.
USAGE:
polyversion [PROJ-1] ...
polyversion [-v | -V ] # print my version information
user@host:~/ $ polyversion polyversion # fails, not in a git repo
b'fatal: not a git repository (or any of the parent directories): .git\n'
cmd: ['git', 'describe', '--match=cf-v*']
Traceback (most recent call last):
File "/pyenv/site-packages/pvlib/polyversion/__main__.py", line 18, in main
polyversion.run(*sys.argv[1:])
File "/pyenv/site-packages/pvlib/polyversion/__init__.py", line 340, in run
res = polyversion(args[0], repo_path=os.curdir)
File "/pyenv/site-packages/pvlib/polyversion/__init__.py", line 262, in polyversion
pvtag = _my_run(cmd, cwd=repo_path)
File "/pyenv/site-packages/pvlib/polyversion/__init__.py", line 106, in _my_run
raise sbp.CalledProcessError(proc.returncode, cmd)
subprocess.CalledProcessError: Command '['git', 'describe', '--match=cf-v*']' returned non-zero exit status 128.
user@host:~/ $ cd polyvers.git
user@host:~/polyvers.git (dev) $ polyversion polyvers polyversion
polyvers: 0.0.2a10
polyversion: 0.0.2a9
2.1.4. Standalone wheel¶
Various ways to use the standalone wheel from bash (these will still work without having installed anything):
user@host:~/polyvers.git (master) $
user@host:~/polyvers.git (master) $ ./bin/pvlib.run polyversion
polyversion: 0.0.2a9
user@host:~/polyvers.git (master) $ python ./bin/pvlib.run --help
...
user@host:~/polyvers.git (master) $ python ./bin/pvlib.run -m polyversion -v
version: 0.0.2a9
user@host:~/polyvers.git (master) $ PYTHONPATH=./bin/pvlib.run python -m polyversion -V
version: 0.0.2a9
updated: Thu, 24 May 2018 02:47:37 +0300
For the rest, consult the polyvers project: https://polyvers.readthedocs.io