112 lines
3.5 KiB
Nix
112 lines
3.5 KiB
Nix
{
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inputs = {
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# nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
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systems.url = "github:nix-systems/default";
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flake-parts.url = "github:hercules-ci/flake-parts";
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# Lexical is an alternative LSP server. There are several options for Elixir
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# LSP. See https://gist.github.com/Nezteb/dc63f1d5ad9d88907dd103da2ca000b1
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lexical.url = "github:lexical-lsp/lexical";
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# Use process-compose to manage background processes during development
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process-compose-flake.url = "github:Platonic-Systems/process-compose-flake";
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};
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outputs =
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{
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self,
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nixpkgs,
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systems,
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flake-parts,
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...
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}@inputs:
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let
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# Set the Erlang version
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erlangVersion = "erlang_25";
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# Set the Elixir version
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elixirVersion = "elixir_1_15";
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in
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flake-parts.lib.mkFlake { inherit inputs; } {
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systems = import systems;
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imports = [ inputs.process-compose-flake.flakeModule ];
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perSystem =
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{
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# self',
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config,
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system,
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pkgs,
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lib,
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...
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}:
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{
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# Define a consistent package set for development, testing, and
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# production.
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_module.args.pkgs = import nixpkgs {
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inherit system;
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overlays = [
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(
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final: _:
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let
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erlang = final.beam.interpreters.${erlangVersion};
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beamPackages = final.beam.packages.${erlangVersion};
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elixir = beamPackages.${elixirVersion};
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in
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{
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inherit erlang elixir;
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# Hex is not used in the devShell.
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# inherit (beamPackages) hex;
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}
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)
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];
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};
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# You can build your Elixir application using mixRelease.
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# packages.default = { };
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# Add dependencies to develop your application using Mix.
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devShells.default = pkgs.mkShell {
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buildInputs =
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with pkgs;
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(
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[
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erlang
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elixir
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# You are likely to need Node.js if you develop a Phoenix
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# application.
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nodejs
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# Add the language server of your choice.
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inputs.lexical.packages.${system}.default
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# I once added Hex via a Nix development shell, but now I install
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# and upgrade it using Mix. Hex installed using Nix can cause an
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# issue if you manage Elixir dependencies using Mix.
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]
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# Add a dependency for a file watcher if you develop a Phoenix
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# application.
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++ lib.optional stdenv.isLinux inotify-tools
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++ (lib.optionals stdenv.isDarwin (
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with darwin.apple_sdk.frameworks;
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[
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CoreFoundation
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CoreServices
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]
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))
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);
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};
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# You can define background processes in Nix using
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# process-compose-flake.
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process-compose.example = {
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settings = {
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processes = {
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ponysay.command = ''
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while true; do
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${lib.getExe pkgs.ponysay} "Enjoy our ponysay demo!"
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sleep 2
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done
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'';
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};
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};
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};
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};
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};
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}
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