autojump: add module

This also deprecates the `programs.bash.enableAutojump` option in
favor of this module.

modules/programs/autojump.nix

@@ -0,0 +1,56 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+
+  cfg = config.programs.autojump;
+  package = pkgs.autojump;
+
+in {
+  meta.maintainers = [ maintainers.evanjs ];
+
+  options.programs.autojump = {
+    enable = mkEnableOption "autojump";
+
+    enableBashIntegration = mkOption {
+      default = true;
+      type = types.bool;
+      description = ''
+        Whether to enable Bash integration.
+      '';
+    };
+
+    enableZshIntegration = mkOption {
+      default = true;
+      type = types.bool;
+      description = ''
+        Whether to enable Zsh integration.
+      '';
+    };
+
+    enableFishIntegration = mkOption {
+      default = true;
+      type = types.bool;
+      description = ''
+        Whether to enable Fish integration.
+      '';
+    };
+  };
+
+  config = mkIf cfg.enable {
+    home.packages = [ package ];
+
+    programs.bash.initExtra = mkIf cfg.enableBashIntegration (mkBefore ''
+      . ${package}/share/autojump/autojump.bash
+    '');
+
+    programs.zsh.initExtra = mkIf cfg.enableZshIntegration ''
+      . ${package}/share/autojump/autojump.zsh
+    '';
+
+    programs.fish.promptInit = mkIf cfg.enableFishIntegration ''
+      . ${package}/share/autojump/autojump.fish
+    '';
+  };
+}

modules/programs/bash.nix

@@ -11,6 +11,14 @@ in
 {
   meta.maintainers = [ maintainers.rycee ];
 
+  imports = [
+    (mkRenamedOptionModule [ "programs" "bash" "enableAutojump" ] [
+      "programs"
+      "autojump"
+      "enable"
+    ])
+  ];
+
   options = {
     programs.bash = {
       enable = mkEnableOption "GNU Bourne-Again SHell";
@@ -94,12 +102,6 @@ in
         '';
       };
 
-      enableAutojump = mkOption {
-        default = false;
-        type = types.bool;
-        description = "Enable the autojump navigation tool.";
-      };
-
       profileExtra = mkOption {
         default = "";
         type = types.lines;
@@ -176,9 +178,6 @@ in
 
           ${aliasesStr}
 
-          ${optionalString cfg.enableAutojump
-            ". ${pkgs.autojump}/share/autojump/autojump.bash"}
-
           ${cfg.initExtra}
         fi
       '';
@@ -216,9 +215,6 @@ in
           ${cfg.logoutExtra}
         '';
       };
-
-      home.packages =
-        optional (cfg.enableAutojump) pkgs.autojump;
     }
   );
 }