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flake.nix
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{
description = "AOC 2024";
inputs = {
nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
};
outputs = {
self,
nixpkgs,
flake-utils,
}:
flake-utils.lib.eachDefaultSystem (system: let
pkgs = import nixpkgs {
inherit system;
};
inherit (pkgs) inotify-tools terminal-notifier;
inherit (pkgs.lib) optionals;
inherit (pkgs.stdenv) isDarwin isLinux;
linuxDeps = optionals isLinux [inotify-tools];
darwinDeps =
optionals isDarwin [terminal-notifier]
++ (with pkgs.darwin.apple_sdk.frameworks;
optionals isDarwin [
CoreFoundation
CoreServices
]);
in {
devShells = {
default = pkgs.mkShell {
packages = with pkgs;
[
beam.packages.erlang_27.elixir_1_17
just
]
++ linuxDeps
++ darwinDeps;
shellHook = ''
# this allows mix to work on the local directory
mkdir -p .nix-mix .nix-hex
export MIX_HOME=$PWD/.nix-mix
export HEX_HOME=$PWD/.nix-hex
# make hex from Nixpkgs available
# `mix local.hex` will install hex into MIX_HOME and should take precedence
export MIX_PATH="${pkgs.beam.packages.erlang_27.hex}/lib/erlang/lib/hex/ebin"
export PATH=$MIX_HOME/bin:$HEX_HOME/bin:$PATH
export LANG=C.UTF-8
# keep your shell history in iex
export ERL_AFLAGS="-kernel shell_history enabled"
'';
};
};
});
}