dart: 2.0.0 -> 2.2.0

[glesica]

Motivation for this change

There are newer versions of Dart available.

Things done

Added 2.1.0, 2.1.1, 2.2.0, and the latest dev channel release of the 2.3.0 series. I'm not actually sure what the dart_stable, dart_old, and dart_dev values are for, I can't actually figure out how to use them other than the fact that they cause the corresponding versions to show up in a query. However, this means 2.2.0 shows up twice, so maybe we ought to drop dart_stable?

• Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS)
• Built on platform(s)
  • NixOS
  • macOS
  • other Linux distributions (Fedora 30)
• Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
• Tested compilation of all pkgs that depend on this change using nix-shell -p nix-review --run "nix-review wip"
• Tested execution of all binary files (usually in ./result/bin/)
• Determined the impact on package closure size (by running nix path-info -S before and after)
• Assured whether relevant documentation is up to date
• Fits CONTRIBUTING.md.

---

[fr3fou]

Any news?

[rixed]

There is no maintainer in the meta, so that must not help. I suggest finding one (maybe yourself?)
Then, is it necessary to keep all the old version definitions?

[glesica]

Not really necessary, no. I was just following the pattern that seemed to exist already. You think just keeping the latest would be fine?

[glesica]

Speaking of which, I also need to update this to 2.6. I'll do that this weekend.

[rixed]

You think just keeping the latest would be fine?

That's my understanding of the recommended best practices. See https://nixos.org/nixpkgs/manual/#sec-versioning
Also this thread has more info and rationale: #36266

So unless there is value to keep various versions (for instance if several versions are popular that are incompatible) then I would say there should be only the latest version in nixpkgs.

[glesica]

I'll update it, thanks!

[GRBurst]

so this is superseded by #78475

[glesica]

Perfect, thanks!