vimPlugins.blink-cmp: add updateScript

[redxtech]

Description of changes

I have added a script to assist with the update process, grabbing the latest release of blink.cmp, pulling in the up-to-date Cargo.lock file, and making sure the outputHashes for the git-source frizbee crate is up to date.

Things done

• added update.sh to vimPlugins.blink-cmp

• Built on platform(s)
  • [x] x86_64-linux
  • [ ] aarch64-linux
  • [ ] x86_64-darwin
  • [ ] aarch64-darwin
• For non-Linux: Is sandboxing enabled in nix.conf? (See Nix manual)
  • [ ] sandbox = relaxed
  • [ ] sandbox = true
• [ ] Tested, as applicable:
  • NixOS test(s) (look inside nixos/tests)
  • and/or package tests
  • or, for functions and "core" functionality, tests in lib/tests or pkgs/test
  • made sure NixOS tests are linked to the relevant packages
• [x] Tested compilation of all packages that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review rev HEAD". Note: all changes have to be committed, also see nixpkgs-review usage
• [ ] Tested basic functionality of all binary files (usually in ./result/bin/)
• 25.05 Release Notes (or backporting 24.11 and 25.05 Release notes)
  • [ ] (Package updates) Added a release notes entry if the change is major or breaking
  • [ ] (Module updates) Added a release notes entry if the change is significant
  • [ ] (Module addition) Added a release notes entry if adding a new NixOS module
• [x] Fits CONTRIBUTING.md.

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[GaetanLepage]

Thank you for this contribution. You can get rid of

cargoLock = {
      lockFile = ./Cargo.lock;
      outputHashes = {
        "frizbee-0.1.0" = "sha256-eYth+xOIqwGPkH39OxNCMA9zE+5CTNpsuX8Ue/mySIA=";
      };
    };

and replace it with

useFetchCargoVendor = true;
cargoHash = "";

[redxtech]

@GaetanLepage thanks, this is good to know!

is there a way I can use nix-prefetch-url to calculate this cargoHash in the update script as well?

Semi-related: I'm also building this in a flake (the upstream repo), and when I replace the cargoLock with your suggestion, it has different behaviour from here in nixpkgs. Do you know why that might be? I don't believe it's because of fenix, because I get the same issue when using in-tree rustPlatform.

[GaetanLepage]

is there a way I can use nix-prefetch-url to calculate this cargoHash in the update script as well?

Have a look at the nix-update project maybe. It should be able to work similarly.

Semi-related: I'm also building this in a flake (the upstream repo), and when I replace the cargoLock with your suggestion, it has different behaviour from here in nixpkgs. Do you know why that might be? I don't believe it's because of fenix, because I get the same issue when using in-tree rustPlatform.

This fetcher has been added recently, do you have a recent enough nixpkgs revision ?

[redxtech]

Have a look at the nix-update project maybe. It should be able to work similarly.

I've looked at this before, and while very useful, it requires a URL to be in the src attribute. Since it's the upstream repo, the src attribute is set to ./., so nix-update doesn't know what to do with it, and I'll have to manually re-build to get the proper cargoHash value.

This fetcher has been added recently, do you have a recent enough nixpkgs revision ?

That was it! It must have been very recent, because I updated nixpkgs to latest just last week!