Thread by @duckinator

me: *looks up project on PyPi*

said project: hi, yes, we're confident enough to explicitly add the "Development Status :: 6 - Mature" Trove classifier.

also said project: *has failing builds on master*

errr, y'all got some strange definitions of a mature project.

I legitimately don't understand why so many projects have this problem!

i regularly start projects, get past the prototype stage, then set it up so PRs that would cause master to fail can never get merged, even accounting for semantic conflicts with bors.tech

emanate:
- 19 days from project start to first passing build.
- no failing tests on master since day 19.

awooOS:
- no failing builds for 8 months.

[redacted]:
- 12 days from project start to first passing build.
- no failing tests on master for 3 months.

this isn't a result of me being a better programmer.

this is a result of me using the tools available to enforce this.

PLEASE FREAKING USE THEM.

if your TEST SUITE IS FAILING on the master/primary branch, you don't have a code problem — you have a process problem.

breaking the test suite is fine, but that should never be occurring _after_ a merge.

as an aside: more complicated CI setups — e.g. ones that rely on multiple external libraries/tools — can fail if acquiring those libraries/tools flakes out.

however, you should be able to just wait a bit and tell the CI system to re-run the test suite if that happens.

like the tl;dr of this thread is basically strive for reproducible builds, and if you haven't managed that, have a process which accommodates the lack of them.

also, as a bit of context for non-Python folks: Python uses the "Development Status :: 6 - Mature" trove classifier as the next step beyond production/stable, and that's why i find the claim questionable for a project with regular failing master builds.

also just realized i was a bit vague earlier.

I'm referring specifically to this scenario:

- CI says a PR passes,
- PR is merged,
- CI _immediately_ reports a build failure on master.

This is avoidable the majority of the time.

this one, which also matches what i sai but isn't what i was referring to, is trickier:

- CI says a PR passes,
- PR is merged,
- CI for master passes,
- master can't be built at some point later on. ¯\_(ツ)_/¯