Format Nix code with `nixfmt`

Change-Id: I61efeb666ff7481c05fcb247168290e86a250151

4 files changed, 165 insertions, 120 deletions

diff --git a/src/libexpr/fetchurl.nix b/src/libexpr/fetchurl.nix
index 9d1b61d7f..50007c738 100644
--- a/src/libexpr/fetchurl.nix
+++ b/src/libexpr/fetchurl.nix
@@ -1,43 +1,75 @@
-{ system ? "" # obsolete
-, url
-, hash ? "" # an SRI hash
-
-# Legacy hash specification
-, md5 ? "", sha1 ? "", sha256 ? "", sha512 ? ""
-, outputHash ?
-    if hash != "" then hash else if sha512 != "" then sha512 else if sha1 != "" then sha1 else if md5 != "" then md5 else sha256
-, outputHashAlgo ?
-    if hash != "" then "" else if sha512 != "" then "sha512" else if sha1 != "" then "sha1" else if md5 != "" then "md5" else "sha256"
-
-, executable ? false
-, unpack ? false
-, name ? baseNameOf (toString url)
-, impure ? false
+{
+  system ? "", # obsolete
+  url,
+  hash ? "", # an SRI hash
+
+  # Legacy hash specification
+  md5 ? "",
+  sha1 ? "",
+  sha256 ? "",
+  sha512 ? "",
+  outputHash ?
+    if hash != "" then
+      hash
+    else if sha512 != "" then
+      sha512
+    else if sha1 != "" then
+      sha1
+    else if md5 != "" then
+      md5
+    else
+      sha256,
+  outputHashAlgo ?
+    if hash != "" then
+      ""
+    else if sha512 != "" then
+      "sha512"
+    else if sha1 != "" then
+      "sha1"
+    else if md5 != "" then
+      "md5"
+    else
+      "sha256",
+
+  executable ? false,
+  unpack ? false,
+  name ? baseNameOf (toString url),
+  impure ? false,
 }:
 
-derivation ({
-  builder = "builtin:fetchurl";
+derivation (
+  {
+    builder = "builtin:fetchurl";
 
-  # New-style output content requirements.
-  outputHashMode = if unpack || executable then "recursive" else "flat";
+    # New-style output content requirements.
+    outputHashMode = if unpack || executable then "recursive" else "flat";
 
-  inherit name url executable unpack;
+    inherit
+      name
+      url
+      executable
+      unpack
+      ;
 
-  system = "builtin";
+    system = "builtin";
 
-  # No need to double the amount of network traffic
-  preferLocalBuild = true;
+    # No need to double the amount of network traffic
+    preferLocalBuild = true;
 
-  impureEnvVars = [
-    # We borrow these environment variables from the caller to allow
-    # easy proxy configuration.  This is impure, but a fixed-output
-    # derivation like fetchurl is allowed to do so since its result is
-    # by definition pure.
-    "http_proxy" "https_proxy" "ftp_proxy" "all_proxy" "no_proxy"
-  ];
+    impureEnvVars = [
+      # We borrow these environment variables from the caller to allow
+      # easy proxy configuration.  This is impure, but a fixed-output
+      # derivation like fetchurl is allowed to do so since its result is
+      # by definition pure.
+      "http_proxy"
+      "https_proxy"
+      "ftp_proxy"
+      "all_proxy"
+      "no_proxy"
+    ];
 
-  # To make "nix-prefetch-url" work.
-  urls = [ url ];
-} // (if impure
-      then { __impure = true; }
-      else { inherit outputHashAlgo outputHash; }))
+    # To make "nix-prefetch-url" work.
+    urls = [ url ];
+  }
+  // (if impure then { __impure = true; } else { inherit outputHashAlgo outputHash; })
+)
diff --git a/src/libexpr/flake/call-flake.nix b/src/libexpr/flake/call-flake.nix
index 4beb0b0fe..58b4a5542 100644
--- a/src/libexpr/flake/call-flake.nix
+++ b/src/libexpr/flake/call-flake.nix
@@ -4,69 +4,69 @@ let
 
   lockFile = builtins.fromJSON lockFileStr;
 
-  allNodes =
-    builtins.mapAttrs
-      (key: node:
-        let
+  allNodes = builtins.mapAttrs (
+    key: node:
+    let
 
-          sourceInfo =
-            if key == lockFile.root
-            then rootSrc
-            else fetchTree (node.info or {} // removeAttrs node.locked ["dir"]);
+      sourceInfo =
+        if key == lockFile.root then
+          rootSrc
+        else
+          fetchTree (node.info or { } // removeAttrs node.locked [ "dir" ]);
 
-          subdir = if key == lockFile.root then rootSubdir else node.locked.dir or "";
+      subdir = if key == lockFile.root then rootSubdir else node.locked.dir or "";
 
-          outPath = sourceInfo + ((if subdir == "" then "" else "/") + subdir);
+      outPath = sourceInfo + ((if subdir == "" then "" else "/") + subdir);
 
-          flake = import (outPath + "/flake.nix");
+      flake = import (outPath + "/flake.nix");
 
-          inputs = builtins.mapAttrs
-            (inputName: inputSpec: allNodes.${resolveInput inputSpec})
-            (node.inputs or {});
+      inputs = builtins.mapAttrs (inputName: inputSpec: allNodes.${resolveInput inputSpec}) (
+        node.inputs or { }
+      );
 
-          # Resolve a input spec into a node name. An input spec is
-          # either a node name, or a 'follows' path from the root
-          # node.
-          resolveInput = inputSpec:
-              if builtins.isList inputSpec
-              then getInputByPath lockFile.root inputSpec
-              else inputSpec;
+      # Resolve a input spec into a node name. An input spec is
+      # either a node name, or a 'follows' path from the root
+      # node.
+      resolveInput =
+        inputSpec: if builtins.isList inputSpec then getInputByPath lockFile.root inputSpec else inputSpec;
 
-          # Follow an input path (e.g. ["dwarffs" "nixpkgs"]) from the
-          # root node, returning the final node.
-          getInputByPath = nodeName: path:
-            if path == []
-            then nodeName
-            else
-              getInputByPath
-                # Since this could be a 'follows' input, call resolveInput.
-                (resolveInput lockFile.nodes.${nodeName}.inputs.${builtins.head path})
-                (builtins.tail path);
+      # Follow an input path (e.g. ["dwarffs" "nixpkgs"]) from the
+      # root node, returning the final node.
+      getInputByPath =
+        nodeName: path:
+        if path == [ ] then
+          nodeName
+        else
+          getInputByPath
+            # Since this could be a 'follows' input, call resolveInput.
+            (resolveInput lockFile.nodes.${nodeName}.inputs.${builtins.head path})
+            (builtins.tail path);
 
-          outputs = flake.outputs (inputs // { self = result; });
+      outputs = flake.outputs (inputs // { self = result; });
 
-          result =
-            outputs
-            # We add the sourceInfo attribute for its metadata, as they are
-            # relevant metadata for the flake. However, the outPath of the
-            # sourceInfo does not necessarily match the outPath of the flake,
-            # as the flake may be in a subdirectory of a source.
-            # This is shadowed in the next //
-            // sourceInfo
-            // {
-              # This shadows the sourceInfo.outPath
-              inherit outPath;
+      result =
+        outputs
+        # We add the sourceInfo attribute for its metadata, as they are
+        # relevant metadata for the flake. However, the outPath of the
+        # sourceInfo does not necessarily match the outPath of the flake,
+        # as the flake may be in a subdirectory of a source.
+        # This is shadowed in the next //
+        // sourceInfo
+        // {
+          # This shadows the sourceInfo.outPath
+          inherit outPath;
 
-              inherit inputs; inherit outputs; inherit sourceInfo; _type = "flake";
-            };
-
-        in
-          if node.flake or true then
-            assert builtins.isFunction flake.outputs;
-            result
-          else
-            sourceInfo
-      )
-      lockFile.nodes;
-
-in allNodes.${lockFile.root}
+          inherit inputs;
+          inherit outputs;
+          inherit sourceInfo;
+          _type = "flake";
+        };
+    in
+    if node.flake or true then
+      assert builtins.isFunction flake.outputs;
+      result
+    else
+      sourceInfo
+  ) lockFile.nodes;
+in
+allNodes.${lockFile.root}
diff --git a/src/libexpr/imported-drv-to-derivation.nix b/src/libexpr/imported-drv-to-derivation.nix
index 9467e6a22..50864563e 100644
--- a/src/libexpr/imported-drv-to-derivation.nix
+++ b/src/libexpr/imported-drv-to-derivation.nix
@@ -1,21 +1,26 @@
-attrs @ { drvPath, outputs, name, ... }:
+attrs@{
+  drvPath,
+  outputs,
+  name,
+  ...
+}:
 
 let
 
-  commonAttrs = (builtins.listToAttrs outputsList) //
-    { all = map (x: x.value) outputsList;
-      inherit drvPath name;
-      type = "derivation";
-    };
+  commonAttrs = (builtins.listToAttrs outputsList) // {
+    all = map (x: x.value) outputsList;
+    inherit drvPath name;
+    type = "derivation";
+  };
 
-  outputToAttrListElement = outputName:
-    { name = outputName;
-      value = commonAttrs // {
-        outPath = builtins.getAttr outputName attrs;
-        inherit outputName;
-      };
+  outputToAttrListElement = outputName: {
+    name = outputName;
+    value = commonAttrs // {
+      outPath = builtins.getAttr outputName attrs;
+      inherit outputName;
     };
+  };
 
   outputsList = map outputToAttrListElement outputs;
-
-in (builtins.head outputsList).value
+in
+(builtins.head outputsList).value
diff --git a/src/libexpr/primops/derivation.nix b/src/libexpr/primops/derivation.nix
index c0fbe8082..674408c6d 100644
--- a/src/libexpr/primops/derivation.nix
+++ b/src/libexpr/primops/derivation.nix
@@ -1,27 +1,35 @@
-/* This is the implementation of the ‘derivation’ builtin function.
-   It's actually a wrapper around the ‘derivationStrict’ primop. */
+/*
+  This is the implementation of the ‘derivation’ builtin function.
+  It's actually a wrapper around the ‘derivationStrict’ primop.
+*/
 
-drvAttrs @ { outputs ? [ "out" ], ... }:
+drvAttrs@{
+  outputs ? [ "out" ],
+  ...
+}:
 
 let
 
   strict = derivationStrict drvAttrs;
 
-  commonAttrs = drvAttrs // (builtins.listToAttrs outputsList) //
-    { all = map (x: x.value) outputsList;
+  commonAttrs =
+    drvAttrs
+    // (builtins.listToAttrs outputsList)
+    // {
+      all = map (x: x.value) outputsList;
       inherit drvAttrs;
     };
 
-  outputToAttrListElement = outputName:
-    { name = outputName;
-      value = commonAttrs // {
-        outPath = builtins.getAttr outputName strict;
-        drvPath = strict.drvPath;
-        type = "derivation";
-        inherit outputName;
-      };
+  outputToAttrListElement = outputName: {
+    name = outputName;
+    value = commonAttrs // {
+      outPath = builtins.getAttr outputName strict;
+      drvPath = strict.drvPath;
+      type = "derivation";
+      inherit outputName;
     };
+  };
 
   outputsList = map outputToAttrListElement outputs;
-
-in (builtins.head outputsList).value
+in
+(builtins.head outputsList).value