Crater for Just

[casey]

There are a lot of justfiles on github, and it would be nice to leverage them to make sure that existing justfiles aren't broken by future changes tojust.

I'm imagining a tool that would, for a new version of just:

• download all files on named justfile or Justfile
• check that all files are tokenized identically under the new and old versions
• check that all files are parsed identically under the new and old versions
• check that all files produce identical dry-runs under new and old versions

Caldera would be an appropriate name. It will probably need a blacklist for those files which are called justfile but which aren't actually justfiles.

[rollcat]

It will probably need a blacklist for those files which are called justfile but which aren't actually justfiles.

On the lower layer, it should be sufficient to generate a report for given version of just, some just-version. If it fails to parse today, it shouldn't be a problem tomorrow.

A higher layer would have to track tuples of (something-that-looks-like-justfile, just-version, report), and only raise red flags when there's a regression - something that worked with just-version is now broken in just-version+1.

Then there's no need for a hardcoded list - both whitelists and blacklists suck.

[casey]

It exists now!

https://github.com/casey/janus