All development and new releases blocked: migrating from Travis to some other CI provider

[skvark]

Background: https://www.jeffgeerling.com/blog/2020/travis-cis-new-pricing-plan-threw-wrench-my-open-source-works

It's not possible to use Travis to build the Linux and macOS wheels due to changes in Travis pricing.

To do:

• Select a new CI provider
• Check if it is possible to use multibuild with the new CI provider
• Migrate the Travis side of the build toolchain to the new CI provider

Related issues:

#421

[skvark]

Going see this one through before starting any migration process: #366

[skvark]

It seems that Travis is ignoring also much larger projects so it doesn't look like I could use Travis in the future considering that I run this project mostly alone and I would need most likely millions of "Travis credits" per year to keep the builds running.

• travis-ci no longer running. numpy/numpy#17824
• CI: Travis CI has been completely disabled for SciPy (no credits left) scipy/scipy#13109

You can find a lot more similar issues via Github search in other repositories. Github Actions, Azure Pipelines and CircleCI are probably worth taking a look at as alternatives.

[skvark]

Current situation is that Travis removed for some reason all the credits I already had in place (#366 (comment)). Due to this, I cannot run any Linux or macOS builds.

I won't be doing any development effort towards this project during this month. There will be no new releases, PRs will not be reviewed etc. If there is some relevant issues / comments, I might answer to them. I'll check in January 2021 if it is possible to continue the project via alternative CI solutions.

[skvark]

It seems we have a final confirmation that Travis has stopped all OSS credit allocations: https://twitter.com/james_hilliard/status/1336081776691843072

[johnthagen]

From my experience the two most popular alternatives are:

• GitHub Actions
  • For public repositories, unlimited credits (For private repositories: This provides 2,000 free minutes per month)
  • https://docs.github.com/en/free-pro-team@latest/github/setting-up-and-managing-billing-and-payments-on-github/about-billing-for-github-actions
• CircleCI
  • This provide 2,500 free "credits" per month, but only 1 concurrent job can run at a time
  • https://circleci.com/pricing/

Edit: Per #366 (comment) a close reading of the GitHub actions docs does make it seem that public repos are not counted against the limit.

[skvark]

I guess Github Actions is the best option since there are no limits for open source projects. The only issue I see is that ARM builds cannot be done currently, but ARM runners should be available during Q1 2021: github/roadmap#95.

[hannesa2]

but ARM runners should be available during Q1 2021: github/roadmap#95.

It #95 is now closed. But to be honest it's not 100% clear for me. Does it mean the integration to ARM build can be done now ?

[skvark]

It seems that the Github roadmap was modified and ARM support was not implemented (check the roadmap issue edit log) so the ARM issue remains for future builds.

There are already opencv-python wheels for arm64 for the latest release (4.5.1.48) in PyPI (see: https://github.com/opencv/opencv-python/releases/tag/48). Those were built in Travis when that was still possible.

[hannesa2]

There are already opencv-python wheels for arm64 for the latest release (4.5.1.48) in PyPI

Sorry I failed with this apple/tensorflow_macos#67 (comment) (I'm not an experienced python dev)

Is there a better way ?