Predrag Gruevski Profile picture
Aug 9 โ€ข 4 tweets โ€ข 3 min read
cargo-semver-checks 0.7.0 has some new checks:
๐Ÿ“ค `pub use` re-exports
โšก auto-trait impls (Sync, Sized, ...)
๐Ÿ”ƒ impl of derived traits

No more #rustlang auto-trait regressions! ๐Ÿ’ฏ Add an Rc<T> field โ€” oops, your type isn't Send/Sync anymore. So easy to miss, but not anymore. cargo-semver-checks run rep...cargo-semver-checks run rep...
A few months ago, @nikomatsakis wondered on his blog if we could have a simple GitHub Action that would warn about semver regressions.

That GitHub Action is here:
- uses: obi1kenobi/cargo-semver-checks-action@v1

smallcultfollowing.com/babysteps/blogโ€ฆ Side note that, no matter w...
Semver accidents happen. cargo-semver-checks saved me from one just two days ago. clap v3.2.6 had one a few months ago due to auto-traits:
github.com/clap-rs/clap/iโ€ฆ

cargo-semver-checks could have prevented the clap accident too, if it had existed at the time. cargo-semver-checks finds t...
Are you a crate maintainer considering it? What do you need to get to "definite yes?" DMs open if you'd prefer to share privately.

I'm planning to spend the next couple of weeks on UX improvements and maybe a blog post on how this all works โ€” there's fun stuff under the hood!

โ€ข โ€ข โ€ข

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More from @PredragGruevski

Jan 5
I found a one-digit typo in the docs for Python's typing_extensions. I wanted to be a good community member and fix it.

I had no idea how much frustration that one-char PR was about to cause. Brace yourselves as I take you along on this wild ride ๐Ÿงต

RT for reach appreciated ๐Ÿ™
To begin, I open a PR in the @github repo of typing_extensions. Easy-peasy. Right? ๐Ÿ˜ฌ

"Sorry, you have to sign the @ThePSF CLA."

Okay, that's fine. I can do that.

github.com/python/typing/โ€ฆ
"Sorry, you need a bugs.python.org account to sign the CLA."

bugs.python.org supports @github auth so I don't have to type in all the details manually. Should be a one-click process, right?
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