style(nix): apply nix fmt

Normalize formatting with the treefmt-based nix fmt configuration.

modules/darwin/user/default.nix

@@ -1,7 +1,6 @@
 {
   pkgs,
   lib,
-  options,
   config,
   inputs,
   ...

modules/home/user/default.nix

@@ -1,7 +1,6 @@
 inputs@{
   pkgs,
   lib,
-  options,
   config,
   ...
 }:

modules/nixos/user/default.nix

@@ -1,7 +1,6 @@
 args@{
   pkgs,
   lib,
-  options,
   config,
   ...
 }:

snowfall-lib/attrs/default.nix

@@ -1,12 +1,8 @@
 {
   core-inputs,
-  user-inputs,
-  snowfall-lib,
-  snowfall-config,
 }:
 let
   inherit (core-inputs.nixpkgs.lib)
-    assertMsg
     mapAttrsToList
     mapAttrs
     flatten
@@ -95,7 +91,7 @@ in
       let
         merged = foldl merge-fn { } items;
       in
-      merged // mapAttrs (name: value: merged.${value}) alias;
+      merged // mapAttrs (_name: value: merged.${value}) alias;
 
     ## Apply aliases and overrides to an already-merged attribute set.
     ## Use this when you have a pre-built attribute set (e.g., from fix).
@@ -108,7 +104,7 @@ in
     apply-aliases-and-overrides =
       items: alias: overrides:
       let
-        aliased = mapAttrs (name: value: items.${value}) alias;
+        aliased = mapAttrs (_name: value: items.${value}) alias;
       in
       items // aliased // overrides;
   };

snowfall-lib/checks/default.nix

@@ -1,8 +1,5 @@
 {
-  core-inputs,
-  user-inputs,
   snowfall-lib,
-  snowfall-config,
 }:
 {
   check = {

snowfall-lib/default.nix

@@ -6,7 +6,7 @@ core-inputs: user-options:
 let
   raw-snowfall-config = user-options.snowfall or { };
   snowfall-config = raw-snowfall-config // {
-    src = user-options.src;
+    inherit (user-options) src;
     root = raw-snowfall-config.root or user-options.src;
     namespace = raw-snowfall-config.namespace or "internal";
     meta = {
@@ -16,7 +16,7 @@ let
   };
 
   user-inputs = user-options.inputs // {
-    src = user-options.src;
+    inherit (user-options) src;
   };
 
   inherit (core-inputs.nixpkgs.lib)
@@ -73,7 +73,7 @@ let
   snowfall-lib-dirs =
     let
       files = builtins.readDir snowfall-lib-root;
-      dirs = filterAttrs (name: kind: kind == "directory") files;
+      dirs = filterAttrs (_name: kind: kind == "directory") files;
       names = builtins.attrNames dirs;
     in
     names;
@@ -94,7 +94,7 @@ let
     merge-deep libs
   );
 
-  snowfall-top-level-lib = filterAttrs (name: value: !builtins.isAttrs value) snowfall-lib;
+  snowfall-top-level-lib = filterAttrs (_name: value: !builtins.isAttrs value) snowfall-lib;
 
   base-lib = merge-shallow [
     core-inputs.nixpkgs.lib
@@ -113,7 +113,7 @@ let
       attrs = {
         inherit (user-options) inputs;
         snowfall-inputs = core-inputs;
-        namespace = snowfall-config.namespace;
+        inherit (snowfall-config) namespace;
         lib = merge-shallow [
           base-lib
           { ${snowfall-config.namespace} = user-lib; }

snowfall-lib/flake/default.nix

@@ -6,8 +6,6 @@
 }:
 let
   inherit (core-inputs.nixpkgs.lib)
-    assertMsg
-    foldl
     filterAttrs
     const
     mapAttrs
@@ -15,11 +13,9 @@ let
     hasSuffix
     removeSuffix
     nameValuePair
-    traceVal
     pipe
     ;
-in
+
-let
   flake =
     let
       ## Remove the `self` attribute from an attribute set.
@@ -103,8 +99,8 @@ let
       get-libs =
         attrs:
         pipe attrs [
-          (filterAttrs (name: value: builtins.isAttrs (value.lib or null)))
+          (filterAttrs (_name: value: builtins.isAttrs (value.lib or null)))
-          (mapAttrs (name: value: value.lib))
+          (mapAttrs (_name: value: value.lib))
         ];
     };
 
@@ -191,7 +187,7 @@ let
         channelsConfig = full-flake-options.channels-config or full-flake-options.channelsConfig or { };
 
         channels = mapAttrs (
-          channel: config:
+          _channel: config:
           config
           // {
             overlaysBuilder = snowfall-lib.overlay.create-overlays-builder {
@@ -206,7 +202,7 @@ let
         snowfall = {
           config = snowfall-config;
           raw-config = full-flake-options.snowfall or { };
-          user-lib = snowfall-lib.internal.user-lib;
+          inherit (snowfall-lib.internal) user-lib;
         };
       };
 

snowfall-lib/fp/default.nix

@@ -1,11 +1,7 @@
 {
   core-inputs,
-  user-inputs,
-  snowfall-lib,
-  snowfall-config,
 }:
 let
-  inherit (builtins) baseNameOf dirOf;
   inherit (core-inputs.nixpkgs.lib) id foldr flip;
 in
 {
@@ -35,7 +31,7 @@ in
       ## 1
       ## ```
       #@ (a -> b) -> a -> b
-      call = f: x: f x;
+      call = f: f;
     in
     {
       inherit compose call;

snowfall-lib/fs/default.nix

@@ -6,16 +6,11 @@
 }:
 let
   inherit (builtins) readDir pathExists;
-  inherit (core-inputs) flake-utils-plus;
   inherit (core-inputs.nixpkgs.lib)
-    assertMsg
     filterAttrs
     mapAttrsToList
-    flatten
     pipe
     ;
-
-  file-name-regex = "(.*)\\.(.*)$";
 in
 {
   fs = rec {
@@ -95,7 +90,7 @@ in
     get-entries-by-kind =
       kind-predicate: path:
       pipe (safe-read-directory path) [
-        (filterAttrs (name: kind: kind-predicate kind))
+        (filterAttrs (_name: kind-predicate))
         (mapAttrsToList (name: _: "${path}/${name}"))
       ];
 
@@ -151,7 +146,7 @@ in
       let
         entries = safe-read-directory path;
         filtered-entries = filterAttrs (
-          name: kind: (is-file-kind kind) || (is-directory-kind kind)
+          _name: kind: (is-file-kind kind) || (is-directory-kind kind)
         ) entries;
         map-file =
           name: kind:

snowfall-lib/home/default.nix

@@ -9,23 +9,12 @@ let
     assertMsg
     foldl
     head
-    tail
     concatMap
-    optionalAttrs
-    optional
     mkIf
-    filterAttrs
-    mapAttrs'
-    mkMerge
     mapAttrsToList
-    optionals
     mkDefault
-    mkAliasDefinitions
     mkAliasAndWrapDefinitions
-    mkOption
-    types
     hasInfix
-    hasSuffix
     pipe
     ;
 
@@ -41,13 +30,13 @@ in
         # not exist.
         if user-inputs ? home-manager then
           snowfall-lib.internal.system-lib.extend (
-            final: prev:
+            _final: prev:
             # NOTE: This order is important, this library's extend and other utilities must write
             # _over_ the original `system-lib`.
             snowfall-lib.internal.system-lib
             // prev
             // {
-              hm = snowfall-lib.internal.system-lib.home-manager.hm;
+              inherit (snowfall-lib.internal.system-lib.home-manager) hm;
             }
           )
         else
@@ -130,7 +119,7 @@ in
             format = "home";
 
             inputs = snowfall-lib.flake.without-src user-inputs;
-            namespace = snowfall-config.namespace;
+            inherit (snowfall-config) namespace;
 
             # NOTE: home-manager has trouble with `pkgs` recursion if it isn't passed in here.
             inherit pkgs lib;
@@ -226,7 +215,7 @@ in
 
           user-home-modules-list = mapAttrsToList (
             module-path: module:
-            args@{ pkgs, ... }:
+            args:
             (module args)
             // {
               _file = "${user-homes-root}/${module-path}/default.nix";
@@ -296,8 +285,7 @@ in
           };
 
           extra-special-args-module =
-            args@{
+            {
-              config,
               pkgs,
               system ? pkgs.stdenv.hostPlatform.system,
               target ? system,
@@ -337,7 +325,7 @@ in
               other-modules = users.users.${name}.modules or [ ];
               user-name = created-user.specialArgs.user;
             in
-            args@{
+            {
               config,
               options,
               pkgs,
@@ -392,7 +380,7 @@ in
                       (
                         (users.users.${name}.specialArgs or { })
                         // {
-                          namespace = snowfall-config.namespace;
+                          inherit (snowfall-config) namespace;
                         }
                       )
                       [
@@ -407,7 +395,7 @@ in
 
                 home-manager = {
                   users.${user-name} = mkIf config.snowfallorg.users.${user-name}.home.enable (
-                    { pkgs, ... }:
+                    { ... }:
                     {
                       imports = (home-config.imports or [ ]) ++ other-modules ++ [ user-module ];
                       config = builtins.removeAttrs home-config [ "imports" ];

snowfall-lib/home/nix-registry-module.nix

@@ -1,9 +1,6 @@
 # This code is adapted from flake-utils-plus:
 # https://github.com/gytis-ivaskevicius/flake-utils-plus/blob/2bf0f91643c2e5ae38c1b26893ac2927ac9bd82a/lib/options.nix
 {
-  lib,
-  config,
-  user-inputs,
   core-inputs,
   ...
 }:

snowfall-lib/internal/default.nix

@@ -17,7 +17,7 @@ let
   core-inputs-libs = snowfall-lib.flake.get-libs (snowfall-lib.flake.without-self core-inputs);
   user-inputs-libs = snowfall-lib.flake.get-libs (snowfall-lib.flake.without-self user-inputs);
 
-  snowfall-top-level-lib = filterAttrs (name: value: !builtins.isAttrs value) snowfall-lib;
+  snowfall-top-level-lib = filterAttrs (_name: value: !builtins.isAttrs value) snowfall-lib;
 
   base-lib = snowfall-lib.attrs.merge-shallow [
     core-inputs.nixpkgs.lib
@@ -36,7 +36,7 @@ let
       attrs = {
         inputs = snowfall-lib.flake.without-snowfall-inputs user-inputs;
         snowfall-inputs = core-inputs;
-        namespace = snowfall-config.namespace;
+        inherit (snowfall-config) namespace;
         lib = snowfall-lib.attrs.merge-shallow [
           base-lib
           { "${snowfall-config.namespace}" = user-lib; }
@@ -86,7 +86,7 @@ in
               inherit channels;
               lib = system-lib;
               inputs = snowfall-lib.flake.without-src user-inputs;
-              namespace = snowfall-config.namespace;
+              inherit (snowfall-config) namespace;
             }
           ) item { };
         };

snowfall-lib/module/default.nix

@@ -5,14 +5,8 @@
   snowfall-config,
 }:
 let
-  inherit (builtins) baseNameOf;
   inherit (core-inputs.nixpkgs.lib)
-    foldl
-    mapAttrs
-    hasSuffix
     isFunction
-    splitString
-    tail
     ;
 
   user-modules-root = snowfall-lib.fs.get-snowfall-file "modules";
@@ -49,7 +43,7 @@ in
             # NOTE: home-manager *requires* modules to specify named arguments or it will not
             # pass values in. For this reason we must specify things like `pkgs` as a named attribute.
             ${metadata.name} =
-              args@{ pkgs, ... }:
+              args:
               let
                 system = args.system or args.pkgs.stdenv.hostPlatform.system;
                 target = args.target or system;
@@ -74,7 +68,7 @@ in
                   lib = snowfall-lib.internal.system-lib;
 
                   inputs = snowfall-lib.flake.without-src user-inputs;
-                  namespace = snowfall-config.namespace;
+                  inherit (snowfall-config) namespace;
                 };
                 imported-user-module = import metadata.path;
                 user-module =

snowfall-lib/overlay/default.nix

@@ -6,9 +6,7 @@
 }:
 let
   inherit (core-inputs.nixpkgs.lib)
-    assertMsg
     foldl
-    concatStringsSep
     pipe
     flatten
     ;
@@ -114,8 +112,7 @@ in
               ${namespace} = (prev.${namespace} or { }) // user-packages;
             };
 
-        create-overlay = (
+        create-overlay = overlays: file:
-          overlays: file:
           let
             # We are building flake outputs based on file paths. Nix doesn't allow this
             # so we have to explicitly discard the string's path context to use it as an attribute name.
@@ -145,20 +142,19 @@ in
                 user-overlay-packages = user-overlay final prev-with-packages;
                 outputs = user-overlay-packages;
               in
-              if user-overlay-packages.__dontExport or false == true then
+              if user-overlay-packages.__dontExport or false then
                 outputs // { __dontExport = true; }
               else
                 outputs;
             fake-overlay-result = overlay fake-pkgs fake-pkgs;
           in
-          if fake-overlay-result.__dontExport or false == true then
+          if fake-overlay-result.__dontExport or false then
             overlays
           else
             overlays
             // {
               ${name} = overlay;
-            }
+            };
-        );
 
         overlays = foldl create-overlay { } user-overlays;
 
@@ -171,9 +167,8 @@ in
             # so we have to explicitly discard the string's path context to use it as an attribute name.
             name = builtins.unsafeDiscardStringContext (snowfall-lib.path.get-parent-directory file);
             overlay =
-              final: prev:
+              _final: prev:
               let
-                channels = channel-systems.${prev.system};
                 packages = snowfall-lib.package.create-packages {
                   inherit namespace;
                   channels = channel-systems.${prev.system};

snowfall-lib/package/default.nix

@@ -5,13 +5,10 @@
   snowfall-config,
 }:
 let
-  inherit (core-inputs.flake-utils-plus.lib) filterPackages allSystems;
+  inherit (core-inputs.flake-utils-plus.lib) filterPackages;
   inherit (core-inputs.nixpkgs.lib)
-    assertMsg
     fix
     foldl
-    mapAttrs
-    filterAttrs
     callPackageWith
     ;
 

snowfall-lib/path/default.nix

@@ -1,8 +1,6 @@
 {
   core-inputs,
-  user-inputs,
   snowfall-lib,
-  snowfall-config,
 }:
 let
   inherit (builtins)

snowfall-lib/shell/default.nix

@@ -1,8 +1,5 @@
 {
-  core-inputs,
-  user-inputs,
   snowfall-lib,
-  snowfall-config,
 }:
 {
   shell = {

snowfall-lib/system/default.nix

@@ -5,7 +5,7 @@
   snowfall-config,
 }:
 let
-  inherit (builtins) dirOf baseNameOf;
+  inherit (builtins) baseNameOf;
   inherit (core-inputs.nixpkgs.lib)
     assertMsg
     fix
@@ -13,7 +13,6 @@ let
     concatMap
     foldl
     optionals
-    singleton
     ;
 
   virtual-systems = import ./virtual-systems.nix;
@@ -291,7 +290,7 @@ in
 
             virtual = (get-virtual-system-type target) != "";
             inputs = snowfall-lib.flake.without-src user-inputs;
-            namespace = snowfall-config.namespace;
+            inherit (snowfall-config) namespace;
           };
         };
 

snowfall-lib/system/nixos-generate.nix

@@ -5,7 +5,7 @@ args@{
   ...
 }:
 let
-  lib = core-inputs.nixpkgs.lib;
+  inherit (core-inputs.nixpkgs) lib;
   nixosModulesPath = core-inputs.nixpkgs + "/nixos/modules";
 
   nixosArgs = builtins.removeAttrs args [ "format" ];
@@ -57,7 +57,7 @@ let
   getImageVariant =
     variant:
     let
-      config = (mkSystem [ ]).config;
+      inherit ((mkSystem [ ])) config;
       images = getImages config;
     in
     assert lib.assertMsg (lib.hasAttr variant images)
@@ -176,7 +176,7 @@ let
 
   specialHandlers = {
     docker = (mkBuild [ dockerModule ]).tarball;
-    vm = (mkBuild [ vmModule ]).vm;
+    inherit ((mkBuild [ vmModule ])) vm;
     vm-bootloader = (mkBuild [ vmBootloaderModule ]).vm;
     vm-nogui = (mkBuild [ vmNoGuiModule ]).vm;
     iso = (mkBuild [ isoModule ]).isoImage;
@@ -186,7 +186,7 @@ let
     kexec-bundle = (mkBuild [ kexecBundleModule ]).kexec_bundle;
   };
 
-  imageHandlers = lib.mapAttrs (_: variant: getImageVariant variant) imageVariants;
+  imageHandlers = lib.mapAttrs (_: getImageVariant) imageVariants;
   formatHandlers = imageHandlers // specialHandlers;
 in
 formatHandlers.${format} or (throw "Unsupported virtual system format '${format}'.")

snowfall-lib/template/default.nix

@@ -1,12 +1,8 @@
 {
   core-inputs,
-  user-inputs,
   snowfall-lib,
-  snowfall-config,
 }:
 let
-  inherit (builtins) baseNameOf;
-  inherit (core-inputs.nixpkgs.lib) assertMsg foldl mapAttrs;
 
   user-templates-root = snowfall-lib.fs.get-snowfall-file "templates";
 in