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nix-prisma-utils

A nix library to make prisma work in your nix shell

How it works

Given the prisma engines commit and the hashes of each of the prisma engines binaries, the library downloads the binaries, patches their ELFs and combines them to a package that contains all the binaries, and a shell hook that sets the environment variables pointing to the binaries.

Why not use...

prisma engines as a flake

This is also a good option! But if you don't have a private nix binary cache, every developer checking out your project will have to build prisma engines. Additionally, you'll have to manually keep the prisma-engines version in sync with the version in your package-lock.json file, which nix-prisma-utils detects automatically.

prisma engines from nixpkgs

The drawback of this is that the version of prisma-engines from nixpkgs dictates which version of prisma you have to use in node.js. With nix-prisma-utils it's the other way around. You can simply install prisma trhough npm or pnpm, and then let nix-prisma-utils do the rest.

Let's go

Using npm

{
  inputs.pkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
  inputs.prisma-utils.url = "github:VanCoding/nix-prisma-utils";

  outputs =
    { pkgs, prisma-utils, ... }:
    let
      nixpkgs = import pkgs { system = "x86_64-linux"; };
      prisma =
        (prisma-utils.lib.prisma-factory {
          inherit nixpkgs;
          prisma-fmt-hash = "sha256-4zsJv0PW8FkGfiiv/9g0y5xWNjmRWD8Q2l2blSSBY3s="; # just copy these hashes for now, and then change them when nix complains about the mismatch
          query-engine-hash = "sha256-6ILWB6ZmK4ac6SgAtqCkZKHbQANmcqpWO92U8CfkFzw=";
          libquery-engine-hash = "sha256-n9IimBruqpDJStlEbCJ8nsk8L9dDW95ug+gz9DHS1Lc=";
          schema-engine-hash = "sha256-j38xSXOBwAjIdIpbSTkFJijby6OGWCoAx+xZyms/34Q=";
        }).fromNpmLock
          ./package-lock.json; # <--- path to our package-lock.json file that contains the version of prisma-engines
    in
    {
      devShells.x86_64-linux.default = nixpkgs.mkShell { shellHook = prisma.shellHook; };
    };
}

Using pnpm

{
  inputs.pkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
  inputs.prisma-utils.url = "github:VanCoding/nix-prisma-utils";

  outputs =
    { pkgs, prisma-utils, ... }:
    let
      nixpkgs = import pkgs { system = "x86_64-linux"; };
      prisma =
        (prisma-utils.lib.prisma-factory {
          inherit nixpkgs;
          prisma-fmt-hash = "sha256-4zsJv0PW8FkGfiiv/9g0y5xWNjmRWD8Q2l2blSSBY3s="; # just copy these hashes for now, and then change them when nix complains about the mismatch
          query-engine-hash = "sha256-6ILWB6ZmK4ac6SgAtqCkZKHbQANmcqpWO92U8CfkFzw=";
          libquery-engine-hash = "sha256-n9IimBruqpDJStlEbCJ8nsk8L9dDW95ug+gz9DHS1Lc=";
          schema-engine-hash = "sha256-j38xSXOBwAjIdIpbSTkFJijby6OGWCoAx+xZyms/34Q=";
        }).fromPnpmLock
          ./pnpm-lock.yaml; # <--- path to our pnpm-lock.yaml file that contains the version of prisma-engines
    in
    {
      devShells.x86_64-linux.default = nixpkgs.mkShell { shellHook = prisma.shellHook; };
    };
}

Testing

nix run .#test-all

License

MIT