Hacker News Daily 上看到這個，在講 Travis CI 終止對 open source 專案的服務：「Travis CI is no longer providing CI minutes for open source projects」。
有不少專案已經改用其他 CI 服務的 free tier 做，像是 GitHub Actions 與 CircleCI 都有提供。
看了一下 Hacker News 上的討論，不少人是可以理解不會有永遠免費的午餐，只是這次 Travis CI 的處理讓大家覺得比較討厭的是，一方面官方一直跟 open source community 說我們很願意支援 open source community (前幾個禮拜官方 blog 還有發文重申這件事情)，另外一方面是一直在朝著關閉服務走：從限制 10K credits 開始，到現在不會再提供 credit 給 open source 專案。
有人整理了對應的時間軸：
? 2018: Travis CI announces they are starting the process of merging travis-ci.org, which provided free builds for OSS projects, into travis-ci.com, which until then was only for paying customers. They promise OSS builds will continue to be free.
? 2020: Travis CI announces they are shutting down travis-ci.org at the end of the year and all projects have to move to travis-ci.com. They promise OSS builds will continue to be free.
Early November 2020: travis-ci.com switches from providing unlimited builds for OSS to only providing 10k one-time credits by default. Projects that meet certain guidelines (e.g. no one paid to work on them) can apply for recurring credits.
Later in November 2020: CI for many OSS projects that had migrated to travis-ci.com starts to fail, as they've exhausted their 10K credits.
Dec 2020: If what is reported here is accurate, Travis CI stop providing any recurring OSS credits. CI breaks for the remaining OSS projects on travis-ci.com.
Jan 2021: travis-ci.org shuts down. CI will be broken for all projects using it. They'll have the option of migrating to travis-ci.com, but will soon break again as they exhaust their 10k credits.
這種服務非常吃 CPU resource，大型專案如果每個 push 或是每個 pull request 都跑一輪完整的測試，成本應該不低，大概可以理解為什麼 Travis CI 會這樣決定，不過態度就...
其他家有提供 free tier 的 CI 最近應該會湧入不少人，這幾個月可以看看其他家會不會也跟進，另外一方面應該也會有人開始自架？
