nixfmt

modules/robots-txt.nix

@@ -1,55 +1,81 @@
-{ config, pkgs, lib, ... }:
+{
+  config,
+  pkgs,
+  lib,
+  ...
+}:
 let
   cfg = config.environment.robots-txt;
 
   robots-txt-format = {
-    type = let
-      coercedStrToNonEmptyListOfStr = lib.types.coercedTo lib.types.str lib.singleton (lib.types.nonEmptyListOf lib.types.str);
-    in lib.types.listOf (lib.types.submodule {
-      freeformType = lib.types.attrsOf coercedStrToNonEmptyListOfStr;
-      options = {
-        pre_comment = lib.mkOption {
-          description = "Comment to add before the rule";
-          type = lib.types.lines;
-          default = "";
-        };
-        post_comment = lib.mkOption {
-          description = "Comment to add after the rule";
-          type = lib.types.lines;
-          default = "";
-        };
-      };
-    });
+    type =
+      let
+        coercedStrToNonEmptyListOfStr = lib.types.coercedTo lib.types.str lib.singleton (
+          lib.types.nonEmptyListOf lib.types.str
+        );
+      in
+      lib.types.listOf (
+        lib.types.submodule {
+          freeformType = lib.types.attrsOf coercedStrToNonEmptyListOfStr;
+          options = {
+            pre_comment = lib.mkOption {
+              description = "Comment to add before the rule";
+              type = lib.types.lines;
+              default = "";
+            };
+            post_comment = lib.mkOption {
+              description = "Comment to add after the rule";
+              type = lib.types.lines;
+              default = "";
+            };
+          };
+        }
+      );
 
-    generate = name: value: let
-      makeComment = comment: lib.pipe comment [
-        (lib.splitString "\n")
-        (lib.map (line: if line == "" then "#" else "# ${line}"))
-        (lib.concatStringsSep "\n")
-      ];
+    generate =
+      name: value:
+      let
+        makeComment =
+          comment:
+          lib.pipe comment [
+            (lib.splitString "\n")
+            (lib.map (line: if line == "" then "#" else "# ${line}"))
+            (lib.concatStringsSep "\n")
+          ];
 
-      ruleToString = rule: let
-        user_agent = rule.User-agent or [];
-        pre_comment = rule.pre_comment;
-        post_comment = rule.post_comment;
-        rest = builtins.removeAttrs rule [ "User-agent" "pre_comment" "post_comment" ];
-      in lib.concatStringsSep "\n" (lib.filter (x: x != null) [
-        (if (pre_comment != "") then makeComment pre_comment else null)
-        (let
-          user-agents = lib.concatMapStringsSep "\n" (value: "User-agent: ${value}") user_agent;
-        in
-          if user_agent == [] then null else user-agents
-        )
-        (lib.pipe rest [
-          (lib.mapAttrsToList (ruleName: map (value: "${ruleName}: ${value}")))
-          lib.concatLists
-          (lib.concatStringsSep "\n")
-        ])
-        (if (post_comment != "") then makeComment post_comment else null)
-      ]);
+        ruleToString =
+          rule:
+          let
+            user_agent = rule.User-agent or [ ];
+            pre_comment = rule.pre_comment;
+            post_comment = rule.post_comment;
+            rest = builtins.removeAttrs rule [
+              "User-agent"
+              "pre_comment"
+              "post_comment"
+            ];
+          in
+          lib.concatStringsSep "\n" (
+            lib.filter (x: x != null) [
+              (if (pre_comment != "") then makeComment pre_comment else null)
+              (
+                let
+                  user-agents = lib.concatMapStringsSep "\n" (value: "User-agent: ${value}") user_agent;
+                in
+                if user_agent == [ ] then null else user-agents
+              )
+              (lib.pipe rest [
+                (lib.mapAttrsToList (ruleName: map (value: "${ruleName}: ${value}")))
+                lib.concatLists
+                (lib.concatStringsSep "\n")
+              ])
+              (if (post_comment != "") then makeComment post_comment else null)
+            ]
+          );
 
-      content = lib.concatMapStringsSep "\n\n" ruleToString value;
-    in pkgs.writeText name content;
+        content = lib.concatMapStringsSep "\n\n" ruleToString value;
+      in
+      pkgs.writeText name content;
   };
 in
 {
@@ -58,36 +84,50 @@ in
     description = ''
       Different instances of robots.txt to use with web services.
     '';
-    type = lib.types.attrsOf (lib.types.submodule ({ name, ... }: {
-      options = {
-        enable = lib.mkEnableOption "this instance of robots.txt" // {
-          default = true;
-        };
+    type = lib.types.attrsOf (
+      lib.types.submodule (
+        { name, ... }:
+        {
+          options = {
+            enable = lib.mkEnableOption "this instance of robots.txt" // {
+              default = true;
+            };
 
-        path = lib.mkOption {
-          description = "The resulting path of the dir containing the robots.txt file";
-          type = lib.types.path;
-          readOnly = true;
-          default = "/etc/robots-txt/${name}";
-        };
+            path = lib.mkOption {
+              description = "The resulting path of the dir containing the robots.txt file";
+              type = lib.types.path;
+              readOnly = true;
+              default = "/etc/robots-txt/${name}";
+            };
 
-        rules = lib.mkOption {
-          description = "Rules to include in robots.txt";
-          default = [ ];
-          example = [
-            { User-agent = "Googlebot"; Disallow = "/no-googlebot"; }
-            { User-agent = "Bingbot"; Disallow = [ "/no-bingbot" "/no-bingbot2" ]; }
-          ];
-          type = robots-txt-format.type;
-        };
+            rules = lib.mkOption {
+              description = "Rules to include in robots.txt";
+              default = [ ];
+              example = [
+                {
+                  User-agent = "Googlebot";
+                  Disallow = "/no-googlebot";
+                }
+                {
+                  User-agent = "Bingbot";
+                  Disallow = [
+                    "/no-bingbot"
+                    "/no-bingbot2"
+                  ];
+                }
+              ];
+              type = robots-txt-format.type;
+            };
 
-        virtualHost = lib.mkOption {
-          description = "An nginx virtual host to add the robots.txt to";
-          type = lib.types.nullOr lib.types.str;
-          default = null;
-        };
-      };
-    }));
+            virtualHost = lib.mkOption {
+              description = "An nginx virtual host to add the robots.txt to";
+              type = lib.types.nullOr lib.types.str;
+              default = null;
+            };
+          };
+        }
+      )
+    );
   };
 
   config = {
@@ -98,19 +138,21 @@ in
 
     services.nginx.virtualHosts = lib.pipe cfg [
       (lib.filterAttrs (_: value: value.virtualHost != null))
-      (lib.mapAttrs' (name: value: {
-        name = value.virtualHost;
-        value = {
-          locations = {
-            "= /robots.txt" = {
-              extraConfig = ''
-                add_header Content-Type text/plain;
-              '';
-              root = cfg.${name}.path;
+      (lib.mapAttrs' (
+        name: value: {
+          name = value.virtualHost;
+          value = {
+            locations = {
+              "= /robots.txt" = {
+                extraConfig = ''
+                  add_header Content-Type text/plain;
+                '';
+                root = cfg.${name}.path;
+              };
             };
           };
-        };
-      }))
+        }
+      ))
     ];
   };
 }