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Allow devShell to be a package def or take args

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Previously, devShell was inconsistent when setting it to a function.
When setting directly, a function was assumed to be a package definition
and was used to set devShells.default directly. When auto-loading, a
function was assumed to take module args, and result in config (not a
derivation).

This now enables both behaviors in either case by detecting if a
function is a package definition or if it expects module args and
handling it accordingly.
This commit is contained in:
Archit Gupta 2024-01-14 18:39:15 -08:00
parent 5215a657bf
commit 1d92662d82
2 changed files with 14 additions and 17 deletions
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16
builtinModules/devShells.nix
View File

@ -2,13 +2,15 @@
# Copyright (C) 2023 Archit Gupta <archit@accelbread.com>
# SPDX-License-Identifier: MIT
{ config, lib, flakelight, genSystems, ... }:
{ config, lib, flakelight, genSystems, moduleArgs, ... }:
let
inherit (lib) filterAttrs mapAttrs mkDefault mkIf mkMerge mkOption;
inherit (builtins) attrNames hasAttr;
inherit (lib) all filterAttrs functionArgs mapAttrs mkDefault mkIf mkMerge
mkOption;
inherit (lib.types) coercedTo functionTo lazyAttrsOf lines listOf nullOr
package str submodule;
inherit (flakelight) supportedSystem;
inherit (flakelight.types) optFunctionTo packageDef;
inherit (flakelight.types) function optFunctionTo packageDef;
devShellModule.options = {
inputsFrom = mkOption {
@ -42,13 +44,17 @@ let
default = null;
};
};
moduleFromFn = fn:
if all (a: hasAttr a moduleArgs) (attrNames (functionArgs fn))
then fn moduleArgs
else { overrideShell = fn; };
in
{
options = {
devShell = mkOption {
default = null;
type = nullOr (coercedTo packageDef
(x: { overrideShell = x; })
type = nullOr (coercedTo function moduleFromFn
(submodule devShellModule));
};

15
builtinModules/nixDir.nix
View File

@ -4,7 +4,7 @@
{ config, src, lib, flakelight, moduleArgs, ... }:
let
inherit (lib) mkOption mkIf mkMerge optionalAttrs;
inherit (lib) mkOption mkIf mkMerge;
inherit (flakelight) autoImport autoImportArgs;
inherit (flakelight.types) path;
@ -25,7 +25,7 @@ in
package = autoImport' "package";
packages = autoImportArgs' "packages";
overlays = autoImportArgs' "overlays";
devShell = autoImportArgs' "devShell";
devShell = autoImport' "devShell";
devShells = autoImportArgs' "devShells";
app = autoImport' "app";
apps = autoImport' "apps";
@ -53,16 +53,7 @@ in
(mkIf (package != null) { inherit package; })
(mkIf (packages != null) { inherit packages; })
(mkIf (overlays != null) { inherit overlays; })
(mkIf (devShell != null) {
devShell = optionalAttrs (devShell ? inputsFrom)
{ inherit (devShell) inputsFrom; }
// optionalAttrs (devShell ? packages)
{ inherit (devShell) packages; }
// optionalAttrs (devShell ? shellHook)
{ inherit (devShell) shellHook; }
// optionalAttrs (devShell ? env)
{ inherit (devShell) env; };
})
(mkIf (devShell != null) { inherit devShell; })
(mkIf (devShells != null) { inherit devShells; })
(mkIf (app != null) { inherit app; })
(mkIf (apps != null) { inherit apps; })