treewide: format all inactive Nix files

After final improvements to the official formatter implementation,
this commit now performs the first treewide reformat of Nix files using it.
This is part of the implementation of RFC 166.

Only "inactive" files are reformatted, meaning only files that
aren't being touched by any PR with activity in the past 2 months.
This is to avoid conflicts for PRs that might soon be merged.
Later we can do a full treewide reformat to get the rest,
which should not cause as many conflicts.

A CI check has already been running for some time to ensure that new and
already-formatted files are formatted, so the files being reformatted here
should also stay formatted.

This commit was automatically created and can be verified using

    nix-build https://github.com/infinisil/treewide-nixpkgs-reformat-script/archive/4ed966eb0e9286130aaccf0789d5af91c5879a76.tar.gz \
      --argstr baseRev dc1b417
    result/bin/apply-formatting $NIXPKGS_PATH

default.nix

@@ -1,6 +1,8 @@
-let requiredVersion = import ./lib/minver.nix; in
+let
+  requiredVersion = import ./lib/minver.nix;
+in
 
-if ! builtins ? nixVersion || builtins.compareVersions requiredVersion builtins.nixVersion == 1 then
+if !builtins ? nixVersion || builtins.compareVersions requiredVersion builtins.nixVersion == 1 then
 
   abort ''
 

doc/default.nix

@@ -1,4 +1,7 @@
-{ pkgs ? (import ./.. { }), nixpkgs ? { }}:
+{
+  pkgs ? (import ./.. { }),
+  nixpkgs ? { },
+}:
 let
   inherit (pkgs) lib;
   inherit (lib) hasPrefix removePrefix;
@@ -8,96 +11,165 @@ let
   lib-docs = import ./doc-support/lib-function-docs.nix {
     inherit pkgs nixpkgs;
     libsets = [
-      { name = "asserts"; description = "assertion functions"; }
-      { name = "attrsets"; description = "attribute set functions"; }
-      { name = "strings"; description = "string manipulation functions"; }
-      { name = "versions"; description = "version string functions"; }
-      { name = "trivial"; description = "miscellaneous functions"; }
-      { name = "fixedPoints"; baseName = "fixed-points"; description = "explicit recursion functions"; }
-      { name = "lists"; description = "list manipulation functions"; }
-      { name = "debug"; description = "debugging functions"; }
-      { name = "options"; description = "NixOS / nixpkgs option handling"; }
-      { name = "path"; description = "path functions"; }
-      { name = "filesystem"; description = "filesystem functions"; }
-      { name = "fileset"; description = "file set functions"; }
-      { name = "sources"; description = "source filtering functions"; }
-      { name = "cli"; description = "command-line serialization functions"; }
-      { name = "gvariant"; description = "GVariant formatted string serialization functions"; }
-      { name = "customisation"; description = "Functions to customise (derivation-related) functions, derivatons, or attribute sets"; }
-      { name = "meta"; description = "functions for derivation metadata"; }
-      { name = "derivations"; description = "miscellaneous derivation-specific functions"; }
+      {
+        name = "asserts";
+        description = "assertion functions";
+      }
+      {
+        name = "attrsets";
+        description = "attribute set functions";
+      }
+      {
+        name = "strings";
+        description = "string manipulation functions";
+      }
+      {
+        name = "versions";
+        description = "version string functions";
+      }
+      {
+        name = "trivial";
+        description = "miscellaneous functions";
+      }
+      {
+        name = "fixedPoints";
+        baseName = "fixed-points";
+        description = "explicit recursion functions";
+      }
+      {
+        name = "lists";
+        description = "list manipulation functions";
+      }
+      {
+        name = "debug";
+        description = "debugging functions";
+      }
+      {
+        name = "options";
+        description = "NixOS / nixpkgs option handling";
+      }
+      {
+        name = "path";
+        description = "path functions";
+      }
+      {
+        name = "filesystem";
+        description = "filesystem functions";
+      }
+      {
+        name = "fileset";
+        description = "file set functions";
+      }
+      {
+        name = "sources";
+        description = "source filtering functions";
+      }
+      {
+        name = "cli";
+        description = "command-line serialization functions";
+      }
+      {
+        name = "gvariant";
+        description = "GVariant formatted string serialization functions";
+      }
+      {
+        name = "customisation";
+        description = "Functions to customise (derivation-related) functions, derivatons, or attribute sets";
+      }
+      {
+        name = "meta";
+        description = "functions for derivation metadata";
+      }
+      {
+        name = "derivations";
+        description = "miscellaneous derivation-specific functions";
+      }
     ];
   };
 
-  epub = pkgs.runCommand "manual.epub" {
-    nativeBuildInputs = with pkgs; [ libxslt zip ];
-
-    epub = ''
-      <book xmlns="http://docbook.org/ns/docbook"
-            xmlns:xlink="http://www.w3.org/1999/xlink"
-            version="5.0"
-            xml:id="nixpkgs-manual">
-        <info>
-          <title>Nixpkgs Manual</title>
-          <subtitle>Version ${pkgs.lib.version}</subtitle>
-        </info>
-        <chapter>
-          <title>Temporarily unavailable</title>
-          <para>
-            The Nixpkgs manual is currently not available in EPUB format,
-            please use the <link xlink:href="https://nixos.org/nixpkgs/manual">HTML manual</link>
-            instead.
-          </para>
-          <para>
-            If you've used the EPUB manual in the past and it has been useful to you, please
-            <link xlink:href="https://github.com/NixOS/nixpkgs/issues/237234">let us know</link>.
-          </para>
-        </chapter>
-      </book>
-    '';
-
-    passAsFile = [ "epub" ];
-  } ''
-    mkdir scratch
-    xsltproc \
-      --param chapter.autolabel 0 \
-      --nonet \
-      --output scratch/ \
-      ${pkgs.docbook_xsl_ns}/xml/xsl/docbook/epub/docbook.xsl \
-      $epubPath
-
-    echo "application/epub+zip" > mimetype
-    zip -0Xq "$out" mimetype
-    cd scratch && zip -Xr9D "$out" *
-  '';
+  epub =
+    pkgs.runCommand "manual.epub"
+      {
+        nativeBuildInputs = with pkgs; [
+          libxslt
+          zip
+        ];
+
+        epub = ''
+          <book xmlns="http://docbook.org/ns/docbook"
+                xmlns:xlink="http://www.w3.org/1999/xlink"
+                version="5.0"
+                xml:id="nixpkgs-manual">
+            <info>
+              <title>Nixpkgs Manual</title>
+              <subtitle>Version ${pkgs.lib.version}</subtitle>
+            </info>
+            <chapter>
+              <title>Temporarily unavailable</title>
+              <para>
+                The Nixpkgs manual is currently not available in EPUB format,
+                please use the <link xlink:href="https://nixos.org/nixpkgs/manual">HTML manual</link>
+                instead.
+              </para>
+              <para>
+                If you've used the EPUB manual in the past and it has been useful to you, please
+                <link xlink:href="https://github.com/NixOS/nixpkgs/issues/237234">let us know</link>.
+              </para>
+            </chapter>
+          </book>
+        '';
+
+        passAsFile = [ "epub" ];
+      }
+      ''
+        mkdir scratch
+        xsltproc \
+          --param chapter.autolabel 0 \
+          --nonet \
+          --output scratch/ \
+          ${pkgs.docbook_xsl_ns}/xml/xsl/docbook/epub/docbook.xsl \
+          $epubPath
+
+        echo "application/epub+zip" > mimetype
+        zip -0Xq "$out" mimetype
+        cd scratch && zip -Xr9D "$out" *
+      '';
 
   # NB: This file describes the Nixpkgs manual, which happens to use module
   #     docs infra originally developed for NixOS.
   optionsDoc = pkgs.nixosOptionsDoc {
-    inherit (pkgs.lib.evalModules {
-      modules = [ ../pkgs/top-level/config.nix ];
-      class = "nixpkgsConfig";
-    }) options;
+    inherit
+      (pkgs.lib.evalModules {
+        modules = [ ../pkgs/top-level/config.nix ];
+        class = "nixpkgsConfig";
+      })
+      options
+      ;
     documentType = "none";
-    transformOptions = opt:
-      opt // {
-        declarations =
-          map
-            (decl:
-              if hasPrefix (toString ../..) (toString decl)
-              then
-                let subpath = removePrefix "/" (removePrefix (toString ../.) (toString decl));
-                in { url = "https://github.com/NixOS/nixpkgs/blob/master/${subpath}"; name = subpath; }
-              else decl)
-            opt.declarations;
-        };
+    transformOptions =
+      opt:
+      opt
+      // {
+        declarations = map (
+          decl:
+          if hasPrefix (toString ../..) (toString decl) then
+            let
+              subpath = removePrefix "/" (removePrefix (toString ../.) (toString decl));
+            in
+            {
+              url = "https://github.com/NixOS/nixpkgs/blob/master/${subpath}";
+              name = subpath;
+            }
+          else
+            decl
+        ) opt.declarations;
+      };
   };
-in pkgs.stdenv.mkDerivation {
+in
+pkgs.stdenv.mkDerivation {
   name = "nixpkgs-manual";
 
-  nativeBuildInputs = with pkgs; [
-    nixos-render-docs
-  ];
+  nativeBuildInputs = with pkgs; [ nixos-render-docs ];
 
   src = ./.;
 
@@ -152,25 +224,36 @@ in pkgs.stdenv.mkDerivation {
     echo "doc manual $dest nixpkgs-manual.epub" >> $out/nix-support/hydra-build-products
   '';
 
-  passthru.tests.manpage-urls = with pkgs; testers.invalidateFetcherByDrvHash
-    ({ name ? "manual_check-manpage-urls"
-     , script
-     , urlsFile
-     }: runCommand name {
-      nativeBuildInputs = [
-        cacert
-        (python3.withPackages (p: with p; [
-          aiohttp
-          rich
-          structlog
-        ]))
-      ];
-      outputHash = "sha256-47DEQpj8HBSa+/TImW+5JCeuQeRkm5NMpJWZG3hSuFU=";  # Empty output
-    } ''
-      python3 ${script} ${urlsFile}
-      touch $out
-    '') {
-      script = ./tests/manpage-urls.py;
-      urlsFile = ./manpage-urls.json;
-    };
+  passthru.tests.manpage-urls =
+    with pkgs;
+    testers.invalidateFetcherByDrvHash
+      (
+        {
+          name ? "manual_check-manpage-urls",
+          script,
+          urlsFile,
+        }:
+        runCommand name
+          {
+            nativeBuildInputs = [
+              cacert
+              (python3.withPackages (
+                p: with p; [
+                  aiohttp
+                  rich
+                  structlog
+                ]
+              ))
+            ];
+            outputHash = "sha256-47DEQpj8HBSa+/TImW+5JCeuQeRkm5NMpJWZG3hSuFU="; # Empty output
+          }
+          ''
+            python3 ${script} ${urlsFile}
+            touch $out
+          ''
+      )
+      {
+        script = ./tests/manpage-urls.py;
+        urlsFile = ./manpage-urls.json;
+      };
 }