From 9ab0d2305c059937f907a0d3689ac65891b447f3 Mon Sep 17 00:00:00 2001
From: ivann <ivann@0xf.re>
Date: Tue, 14 Jan 2020 02:23:20 +0100
Subject: [PATCH] kitty: add module

PR #1000
---
 modules/misc/news.nix      |  7 +++
 modules/modules.nix        |  1 +
 modules/programs/kitty.nix | 91 ++++++++++++++++++++++++++++++++++++++
 3 files changed, 99 insertions(+)
 create mode 100644 modules/programs/kitty.nix

diff --git a/modules/misc/news.nix b/modules/misc/news.nix
index 6b01617fc..0d6c2a2cd 100644
--- a/modules/misc/news.nix
+++ b/modules/misc/news.nix
@@ -1318,6 +1318,13 @@ in
           A new module is available: 'programs.neomutt'.
         '';
       }
+
+      {
+        time = "2020-02-23T10:19:48+00:00";
+        message = ''
+          A new module is available: 'programs.kitty'.
+        '';
+      }
     ];
   };
 }
diff --git a/modules/modules.nix b/modules/modules.nix
index 8608a5e69..4ba62ae8e 100644
--- a/modules/modules.nix
+++ b/modules/modules.nix
@@ -68,6 +68,7 @@ let
     (loadModule ./programs/jq.nix { })
     (loadModule ./programs/kakoune.nix { })
     (loadModule ./programs/keychain.nix { })
+    (loadModule ./programs/kitty.nix { })
     (loadModule ./programs/lesspipe.nix { })
     (loadModule ./programs/lsd.nix { })
     (loadModule ./programs/man.nix { })
diff --git a/modules/programs/kitty.nix b/modules/programs/kitty.nix
new file mode 100644
index 000000000..313a0bfad
--- /dev/null
+++ b/modules/programs/kitty.nix
@@ -0,0 +1,91 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+
+  cfg = config.programs.kitty;
+
+  eitherStrBoolInt = with types; either str (either bool int);
+
+  optionalPackage = opt:
+    optional (opt != null && opt.package != null) opt.package;
+
+  toKittyConfig = generators.toKeyValue {
+    mkKeyValue = key: value:
+      let
+        value' = if isBool value then
+          (if value then "yes" else "no")
+        else
+          toString value;
+      in "${key} ${value'}";
+  };
+
+  toKittyKeybindings = generators.toKeyValue {
+    mkKeyValue = key: command: "map ${key} ${command}";
+  };
+
+in {
+  options.programs.kitty = {
+    enable = mkEnableOption "Kitty terminal emulator";
+
+    settings = mkOption {
+      type = types.attrsOf eitherStrBoolInt;
+      default = { };
+      example = literalExample ''
+        {
+          scrollback_lines = 10000;
+          enable_audio_bell = false;
+          update_check_interval = 0;
+        }
+      '';
+      description = ''
+        Configuration written to
+        <filename>~/.config/kitty/kitty.conf</filename>. See
+        <link xlink:href="https://sw.kovidgoyal.net/kitty/conf.html" />
+        for the documentation.
+      '';
+    };
+
+    font = mkOption {
+      type = types.nullOr hm.types.fontType;
+      default = null;
+      description = "The font to use.";
+    };
+
+    keybindings = mkOption {
+      type = types.attrsOf types.str;
+      default = { };
+      description = "Mapping of keybindings to actions.";
+      example = literalExample ''
+        {
+          "ctrl+c" = "copy_or_interrupt";
+          "ctrl+f>2" = "set_font_size 20";
+        }
+      '';
+    };
+
+    extraConfig = mkOption {
+      default = "";
+      type = types.lines;
+      description = "Additional configuration to add.";
+    };
+  };
+
+  config = mkIf cfg.enable {
+    home.packages = [ pkgs.kitty ] ++ optionalPackage cfg.font;
+
+    xdg.configFile."kitty/kitty.conf".text = ''
+      # Generated by Home Manager.
+      # See https://sw.kovidgoyal.net/kitty/conf.html
+
+      ${optionalString (cfg.font != null) "font_family ${cfg.font.name}"}
+
+      ${toKittyConfig cfg.settings}
+
+      ${toKittyKeybindings cfg.keybindings}
+
+      ${cfg.extraConfig}
+    '';
+  };
+}