Format .nix files

... with nixfmt (rfc style)

tests/functional/shell.nix

@@ -1,102 +1,130 @@
-{ inNixShell ? false, contentAddressed ? false, fooContents ? "foo" }:
+{
+  inNixShell ? false,
+  contentAddressed ? false,
+  fooContents ? "foo",
+}:
 
-let cfg = import ./config.nix; in
+let
+  cfg = import ./config.nix;
+in
 with cfg;
 
 let
   mkDerivation =
     if contentAddressed then
-      args: cfg.mkDerivation ({
-        __contentAddressed = true;
-        outputHashMode = "recursive";
-        outputHashAlgo = "sha256";
-      } // args)
-    else cfg.mkDerivation;
+      args:
+      cfg.mkDerivation (
+        {
+          __contentAddressed = true;
+          outputHashMode = "recursive";
+          outputHashAlgo = "sha256";
+        }
+        // args
+      )
+    else
+      cfg.mkDerivation;
 in
 
-let pkgs = rec {
-  setupSh = builtins.toFile "setup" ''
-    export VAR_FROM_STDENV_SETUP=foo
-    for pkg in $buildInputs; do
-      export PATH=$PATH:$pkg/bin
-    done
+let
+  pkgs = rec {
+    setupSh = builtins.toFile "setup" ''
+      export VAR_FROM_STDENV_SETUP=foo
+      for pkg in $buildInputs; do
+        export PATH=$PATH:$pkg/bin
+      done
 
-    declare -a arr1=(1 2 "3 4" 5)
-    declare -a arr2=(x $'\n' $'x\ny')
-    fun() {
-      echo blabla
-    }
-    runHook() {
-      eval "''${!1}"
-    }
-  '';
-
-  stdenv = mkDerivation {
-    name = "stdenv";
-    buildCommand = ''
-      mkdir -p $out
-      ln -s ${setupSh} $out/setup
+      declare -a arr1=(1 2 "3 4" 5)
+      declare -a arr2=(x $'\n' $'x\ny')
+      fun() {
+        echo blabla
+      }
+      runHook() {
+        eval "''${!1}"
+      }
     '';
-  } // { inherit mkDerivation; };
 
-  shellDrv = mkDerivation {
-    name = "shellDrv";
-    builder = "/does/not/exist";
-    VAR_FROM_NIX = "bar";
-    ASCII_PERCENT = "%";
-    ASCII_AT = "@";
-    TEST_inNixShell = if inNixShell then "true" else "false";
-    FOO = fooContents;
-    inherit stdenv;
-    outputs = ["dev" "out"];
-  } // {
-    shellHook = abort "Ignore non-drv shellHook attr";
-  };
+    stdenv =
+      mkDerivation {
+        name = "stdenv";
+        buildCommand = ''
+          mkdir -p $out
+          ln -s ${setupSh} $out/setup
+        '';
+      }
+      // {
+        inherit mkDerivation;
+      };
 
-  # https://github.com/NixOS/nix/issues/5431
-  # See nix-shell.sh
-  polo = mkDerivation {
-    name = "polo";
-    inherit stdenv;
-    shellHook = ''
-      echo Polo
+    shellDrv =
+      mkDerivation {
+        name = "shellDrv";
+        builder = "/does/not/exist";
+        VAR_FROM_NIX = "bar";
+        ASCII_PERCENT = "%";
+        ASCII_AT = "@";
+        TEST_inNixShell = if inNixShell then "true" else "false";
+        FOO = fooContents;
+        inherit stdenv;
+        outputs = [
+          "dev"
+          "out"
+        ];
+      }
+      // {
+        shellHook = abort "Ignore non-drv shellHook attr";
+      };
+
+    # https://github.com/NixOS/nix/issues/5431
+    # See nix-shell.sh
+    polo = mkDerivation {
+      name = "polo";
+      inherit stdenv;
+      shellHook = ''
+        echo Polo
+      '';
+    };
+
+    # Used by nix-shell -p
+    runCommand =
+      name: args: buildCommand:
+      mkDerivation (
+        args
+        // {
+          inherit name buildCommand stdenv;
+        }
+      );
+
+    foo = runCommand "foo" { } ''
+      mkdir -p $out/bin
+      echo 'echo ${fooContents}' > $out/bin/foo
+      chmod a+rx $out/bin/foo
+      ln -s ${shell} $out/bin/bash
     '';
+
+    bar = runCommand "bar" { } ''
+      mkdir -p $out/bin
+      echo 'echo bar' > $out/bin/bar
+      chmod a+rx $out/bin/bar
+    '';
+
+    bash = shell;
+    bashInteractive = runCommand "bash" { } ''
+      mkdir -p $out/bin
+      ln -s ${shell} $out/bin/bash
+    '';
+
+    # ruby "interpreter" that outputs "$@"
+    ruby = runCommand "ruby" { } ''
+      mkdir -p $out/bin
+      echo 'printf %s "$*"' > $out/bin/ruby
+      chmod a+rx $out/bin/ruby
+    '';
+
+    inherit (cfg) shell;
+
+    callPackage = f: args: f (pkgs // args);
+
+    inherit pkgs;
   };
-
-  # Used by nix-shell -p
-  runCommand = name: args: buildCommand: mkDerivation (args // {
-    inherit name buildCommand stdenv;
-  });
-
-  foo = runCommand "foo" {} ''
-    mkdir -p $out/bin
-    echo 'echo ${fooContents}' > $out/bin/foo
-    chmod a+rx $out/bin/foo
-    ln -s ${shell} $out/bin/bash
-  '';
-
-  bar = runCommand "bar" {} ''
-    mkdir -p $out/bin
-    echo 'echo bar' > $out/bin/bar
-    chmod a+rx $out/bin/bar
-  '';
-
-  bash = shell;
-  bashInteractive = runCommand "bash" {} ''
-    mkdir -p $out/bin
-    ln -s ${shell} $out/bin/bash
-  '';
-
-  # ruby "interpreter" that outputs "$@"
-  ruby = runCommand "ruby" {} ''
-    mkdir -p $out/bin
-    echo 'printf %s "$*"' > $out/bin/ruby
-    chmod a+rx $out/bin/ruby
-  '';
-
-  inherit (cfg) shell;
-
-  callPackage = f: args: f (pkgs // args);
-
-  inherit pkgs;
-}; in pkgs
+in
+pkgs