natcap.versioner 0.4.0

Git and hg versioning for natcap projects

Consistent versioning for NatCap Projects

This package provides a consistent versioning scheme for projects of the Natural Capital Project (http://naturalcapitalproject.org).

Versioning Scheme

How a version string is formatted:

If we are at a tag:
    version = {tag}
else:
    version = {tag}.post{N}+r{nodeid|short}

If there are no tags:
    {tag} = 'null'

Examples:

• Version string = 3.4.5

  • Meaning: This version of this tool was built from the tag 3.4.5.

  • You can update to this revision by calling hg update -r 3.4.5

• Version string = 3.4.5.post35+r788a29c99234

  • Meaning: This version of this tool was built from a revision where:

    • The latest tag was 3.4.5

    • The latest commit on this branch is 35 commits beyond the latest tag.

    • The latest commit has a shortened node ID of 788a29c99234

  • You can update to this revision by calling hg update -r 788a29c99234

Installation

Via pip: pip install natcap.versioner

Via setup.py: python setup.py install

Note

If you install natcap.versioner via pip or via setup.py, dependencies should install automatically.

Dependencies

To install dependency:

pip install setuptools

Usage In Your Project

To use this project, you’ll need to edit two files: setup.py and __init__.py.

In your ``setup.py``

Adding these lines to your setup.py allows the DVCS information to be fetched from git or hg and recorded in the package metadata.

from setuptools import setup
import natcap.versioner

setup(
    name='example_project',
    ...
    version=natcap.versioner.parse_version()
    natcap_version='example_project/version.py',
)

In your package’s ``__init__.py``

Adding these lines to your package’s __init__.py file will allow the package version to be fetched from the package metadata.

# Let's assume your package name is still 'example_project'
import natcap.versioner
__version__ = natcap.versioner.get_version('example_project')

Support

If something doesn’t work, it’s probably broken! Please submit an issue via the issue tracker, send James an email or stop by if you’re in the office and I’ll try to fix it!

Tests

To run the suite of tests:

$ python setup.py nosetests

Note that hg and git must be available as executables on the command-line.

0.4.0

• Removing dependency on pyyaml.

• Adding __version__ attribute to natcap.versioner.

0.3.3

• Tests now have full coverage of the package.

• Git repositories without branches are now correctly handled.

• Errors encountered in calls to hg and git command-line applications will cause subprocess.CalledProcessError to be raised.

0.3.2

• Setting setuptools zip_safe=True. After a review of the module, it appears that no functionality within natcap.versioner requires access to resources within the package via the filesystem.

0.3.1

• Restoring support for installation as egg (0.3.0 lacked this).

• Minor stylistic changes for PEP8 and PEP257

0.3.0

• Adding support for git.

• Added tests for core versioning functionality.

0.2.4

• Allowing get_version() to allow fallback to SCM only when allowed by user input. Defaults to only allowing fallback in non-frozen environments (e.g. a source tree). natcap.versioner.VersionNotFound will be raised if the version string cannot be loaded normally or SCM is disallowed.

• If a version string cannot be parsed by vcs_version(), natcap.versioner.VersionNotFound will optionally be raised.

0.2.3

• Turning setuptools zip_safe flag to False. When this and natcap.invest have their zip_safe flags all as False, the packages happily install side-by-side as individual eggs.

0.2.2

• Fixes an issue where a development version is returned when the user is at a tag. The version is now correctly reported as just the tag.

0.2.1

• Version files are now properly imported. This fixes an issue with users unable to fetch version strings from within frozen environments that are outside of a source tree.

0.2.0

• API Change: version is now parsed from setup.py using natcap.versioner.parse_version().

• Allowing the version to be correctly fetched from PKG-INFO from egg/distribution metadata even when the package has not already been built.

0.1.4

• Attempting to get the utils module to import correctly.

0.1.3

• Allowing version string to be written to a package file.

0.1.2

• Default version scheme is dvcs-based post-release now. but can also do a pre-release.

0.1.1

• Fixes installation issues where certain files needed for setup.py were missing from the source distribution.

0.1.0

• Initial public release.