Implement a kitty module

Squashed commit of the following:

commit eb319d25ee2bc60dc4c58f3ee3e70ea2035a2b96
Author: Natsu Kagami <nki@nkagami.me>
Date:   Fri Jun 10 13:41:33 2022 -0400

    Map yen sign to backslash

commit 6d29a296ed789ac20bfcd6e74a48536d0e658582
Author: Natsu Kagami <nki@nkagami.me>
Date:   Fri Jun 10 13:23:30 2022 -0400

    Add kitty options

commit 47b366cbd0fd17c06c4e415b291e2329f8831939
Author: Natsu Kagami <nki@nkagami.me>
Date:   Fri Jun 10 11:42:51 2022 -0400

    Some basic set up to make kitty happy

home/common.nix

@@ -6,6 +6,7 @@
     ./fish/fish.nix
     ./modules/programs/my-broot.nix
     ./modules/programs/my-sway
+    ./modules/programs/my-kitty
     ./common-linux.nix
   ];
 
@@ -74,6 +75,8 @@
     "~/.local/bin"
   ];
 
+  nki.programs.kitty.enable = true;
+
   # Programs
   programs = {
     bat = {

home/fish/fish.nix

@@ -53,7 +53,16 @@
       end
 
       # Source iTerm2 integration
-      test -e ~/.iterm2_shell_integration.fish && source ~/.iterm2_shell_integration.fish
+      if test -e ~/.iterm2_shell_integration.fish; and test $__CFBundleIdentifier = "com.googlecode.iterm2"
+        source ~/.iterm2_shell_integration.fish
+      end
+
+      # Source Kitty integration
+      if set -q KITTY_INSTALLATION_DIR
+        set --global KITTY_SHELL_INTEGRATION enabled
+        source "$KITTY_INSTALLATION_DIR/shell-integration/fish/vendor_conf.d/kitty-shell-integration.fish"
+        set --prepend fish_complete_path "$KITTY_INSTALLATION_DIR/shell-integration/fish/vendor_completions.d"
+      end
 
       # Enable vi keybindings
       fish_vi_key_bindings

home/kakoune/kakrc

@@ -44,11 +44,11 @@ set global grepcmd "rg --line-number --no-column --no-heading --color=never ''"
 #         }
 #     }
 # }
-map global user t -docstring "Open a side terminal on the current directory" ' :iterm-terminal-horizontal fish<ret>'
+# map global user t -docstring "Open a side terminal on the current directory" ' :iterm-terminal-horizontal fish<ret>'
 
 # fzf.kak
 require-module fzf
-set global fzf_terminal_command 'iterm-terminal-horizontal kak -c %val{session} -e "%arg{@}"'
+# set global fzf_terminal_command 'iterm-terminal-horizontal kak -c %val{session} -e "%arg{@}"'
 # set global fzf_grep_command 'rg'
 set global fzf_highlight_command 'bat --style=plain --theme=GitHub --color=always {}'
 map global user f -docstring "FZF mode" ': fzf-mode<ret>'

home/macbook-home.nix

@@ -20,6 +20,7 @@
   programs.fish.shellAliases = {
     brew64 = "arch -x86_64 /usr/local/bin/brew";
   };
+  nki.programs.kitty.background = ./images/chise-bg.png;
 
   home.sessionPath = [
     # Personal .bin

home/modules/programs/my-kitty/darwin.nix

@@ -0,0 +1,63 @@
+{ pkgs, config, lib, ... }:
+let
+  cfg = config.nki.programs.kitty;
+  cmd = "cmd";
+in
+with lib; {
+  programs.kitty = mkIf (cfg.enable && pkgs.stdenv.isDarwin) {
+
+    # Darwin-specific setup
+    darwinLaunchOptions = [
+      "--single-instance"
+      "--start-as=fullscreen"
+    ];
+
+    # Tabs and layouts keybindings
+    keybindings = {
+      # Backslash
+      "0x5d" = "send_text all \\u005c";
+
+      "${cmd}+shift+o" = "launch --location=vsplit";
+      "${cmd}+o" = "launch --location=hsplit";
+      "${cmd}+shift+r" = "layout_action rotate";
+      ## Move the active window in the indicated direction
+      "${cmd}+shift+h" = "move_window left";
+      "${cmd}+shift+j" = "move_window up";
+      "${cmd}+shift+k" = "move_window down";
+      "${cmd}+shift+l" = "move_window right";
+      ## Switch focus to the neighboring window in the indicated direction
+      "${cmd}+h" = "neighboring_window left";
+      "${cmd}+j" = "neighboring_window up";
+      "${cmd}+k" = "neighboring_window down ";
+      "${cmd}+l" = "neighboring_window right";
+    }
+    # Tab bindings
+    // builtins.listToAttrs
+      (map
+        (x: attrsets.nameValuePair "${cmd}+${toString x}" "goto_tab ${toString x}")
+        (lists.range 1 9));
+
+    extraConfig = mkAfter ''
+      # Tab settings
+      tab_bar_edge top
+      tab_bar_style powerline
+      tab_powerline_style slanted
+      tab_title_template "{fmt.fg.red}{bell_symbol}{activity_symbol}{fmt.fg.lightgreen}{fmt.bold}[{index}]{fmt.nobold} {fmt.fg.tab}{title}"
+      active_tab_title_template "{fmt.fg.red}{bell_symbol}{activity_symbol}{fmt.fg.tab}{title}"
+      tab_bar_background #555
+      active_tab_font_style normal
+
+      # Layouts
+      ## Mouse focus
+      focus_follows_mouse yes
+      ## Layout options
+      # Layouts
+      enabled_layouts Splits
+      inactive_text_alpha 0.65
+
+      # MacOS specific
+      macos_option_as_alt = left
+    '';
+  };
+}
+

home/modules/programs/my-kitty/default.nix

@@ -0,0 +1,85 @@
+{ pkgs, config, lib, ... }:
+
+let
+  cfg = config.nki.programs.kitty;
+
+  # iosevka = pkgs.iosevka.override {
+  #   privateBuildPlan = ''
+  #     [buildPlans.iosevka-kagami]
+  #     family = "Iosevka Kagami"
+  #     spacing = "normal"
+  #     serifs = "sans"
+  #     no-cv-ss = true
+
+  #       [buildPlans.iosevka-kagami.variants]
+  #       inherits = "ss06"
+
+  #         [buildPlans.iosevka-kagami.variants.design]
+  #         k = "cursive-serifless"
+
+  #       [buildPlans.iosevka-kagami.ligations]
+  #       inherits = "haskell"
+  #   '';
+  #   set = "kagami";
+  # };
+
+  cmd = if pkgs.stdenv.isDarwin then "cmd" else "ctrl";
+in
+with lib;
+{
+  imports = [ ./darwin.nix ];
+
+  options.nki.programs.kitty = {
+    enable = mkEnableOption "Enable kitty";
+
+    # font
+    fontSize = mkOption {
+      type = types.int;
+      description = "Font size";
+      default = 21;
+    };
+
+    background = mkOption
+      {
+        type = types.nullOr types.path;
+        description = "Path to the background image. If not set, default to a 0.9 opacity";
+        default = null;
+      };
+  };
+
+  config.programs.kitty = mkIf cfg.enable {
+    enable = true;
+
+    font.package = pkgs.fantasque-sans-mono;
+    font.name = "Fantasque Sans Mono";
+    font.size = cfg.fontSize;
+
+    theme = "Ayu Light";
+
+    extraConfig =
+      let
+        background =
+          if isNull cfg.background then ''
+            background_opacity 1
+            dynamic_background_opacity yes
+          '' else ''
+            background_image ${cfg.background}
+            background_image_layout scaled
+            background_tint 0.85
+          '';
+      in
+      ''
+        # Background color and transparency
+        ${background}
+
+        # Scrollback (128MBs)
+        scrollback_pager_history_size 128
+
+        # Disable Shell integration (leave it for Nix)
+        shell_integration no-rc
+      '';
+
+    keybindings = { };
+  };
+}
+