Travis pypi package version

Question

I've setted up travis.ci to automatically deploy to pypi a package when a push to master is tagged.

The problem is that in my setup.py I've to specify the package version, and sometimes I forget that resulting in a non deployed package (or does Pypi overwrites the old one?)

Nevertheless, Is there a way to match the package version on pypi as the tag that is assigned to the commit?

Answer 1

I have already done it in one of my projects.

[EDIT N°2] I wrote a little tutorial you can find here: https://github.com/73VW/Publishing-to-PyPI-with-pbr-and-Travis

V1. Using PBR

You can find it here on Github.

What Travis basically does is the following:

• Check if commit has a tag
• If so, check the format with a regex (/(\d+\.)?(\d+\.)?(\*|\d+)$/)

• If the tag is something like 1.0.0 it uses it for pypi version.

  You can still transform the regex to also match tags like v1.0.0. Use something like /v?(\d+\.)?(\d+\.)?(\*|\d+)$/

  [EDIT N°3] This was completely wrong, PBR can't define version if the tag doesn't match what is described here https://docs.openstack.org/pbr/3.1.0/semver.html.

I use PBR to do this.

A library for managing setuptools packaging needs in a consistent manner.

Check the following files in my repository:

• .travis.yml
• setup.py
• setup.cfg

If you still have troubles, feel free to tag me (@73VW) on github or ask directly here.

Have a nice day.

[EDIT]

V2. Using sed

In git you can get the last tag with the following command git describe --abbrev=0 --tags

Thereby, if your setup is something like the following:

from setuptools import setup
...

setup(
    ...
    version='NEWVERSIONHERE',
    ...
)

You could use a shell script to replace NEWVERSIONHERE by your tag version.

I tried the following (locally, not on Travis) and it works.

#!/bin/sh

set -xe
TAG=$(git describe --abbrev=0 --tags)

sed -i "s/NEWVERSIONHERE/${TAG}/g" setup.py

The -i flag is used to find and replace in place. Thereby it changes in the file you have specified.

Simply put this code in a shell script, don't forget to chmod it in order to be able to run it, and run it from Travis.

Example .travis.yml file:

dist: trusty
sudo: required

language: python
python: 3.6

cache: apt

install:
  - pip install -r requirements.txt
  - chmod 777 YOURSCRIPT.sh

script:
  - your tests here
  - ./YOURSCRIPT.sh

deploy:
  skip_cleanup: true
  provider: pypi
  distributions: sdist bdist_wheel
  on:
    tags: true
    branch:
      - master
      - /(\d+\.)?(\d+\.)?(\*|\d+)$/
  user: YOUR PYPI USERNAME
  password:
  secure: YOUR PYPI ENCODED PASSWORD

Hope this helps!