snowfallorg-lib/snowfall-lib/shell/default.nix
2024-05-19 23:20:26 -07:00

55 lines
1.7 KiB
Nix

{
core-inputs,
user-inputs,
snowfall-lib,
snowfall-config,
}: let
inherit (core-inputs.flake-utils-plus.lib) filterPackages;
inherit (core-inputs.nixpkgs.lib) assertMsg foldl mapAttrs callPackageWith;
user-shells-root = snowfall-lib.fs.get-snowfall-file "shells";
in {
shell = {
## Create flake output packages.
## Example Usage:
## ```nix
## create-shells { inherit channels; src = ./my-shells; overrides = { inherit another-shell; }; alias = { default = "another-shell"; }; }
## ```
## Result:
## ```nix
## { another-shell = ...; my-shell = ...; default = ...; }
## ```
#@ Attrs -> Attrs
create-shells = {
channels,
src ? user-shells-root,
pkgs ? channels.nixpkgs,
overrides ? {},
alias ? {},
}: let
user-shells = snowfall-lib.fs.get-default-nix-files-recursive src;
create-shell-metadata = shell: let
extra-inputs =
pkgs
// {
inherit channels;
lib = snowfall-lib.internal.system-lib;
inputs = snowfall-lib.flake.without-src user-inputs;
};
in {
name = builtins.unsafeDiscardStringContext (snowfall-lib.path.get-parent-directory shell);
drv = callPackageWith extra-inputs shell {};
};
shells-metadata = builtins.map create-shell-metadata user-shells;
merge-shells = shells: metadata:
shells
// {
${metadata.name} = metadata.drv;
};
shells-without-aliases = foldl merge-shells {} shells-metadata;
aliased-shells = mapAttrs (name: value: shells-without-aliases.${value}) alias;
shells = shells-without-aliases // aliased-shells // overrides;
in
filterPackages pkgs.system shells;
};
}