home: added zellij implementation

home/programs/default.nix

@@ -27,6 +27,7 @@
     ./vscode.nix
     ./whatsapp.nix
     ./zathura.nix
+    ./zellij.nix
     ./zsh.nix
 
     ./wezterm

home/programs/zellij.nix

@@ -0,0 +1,157 @@
+{ config, lib, ... }:
+let
+  cfg = config.profile.home.programs.zellij;
+in
+{
+  config = lib.mkIf cfg.enable {
+    programs.zellij.enable = true;
+
+    programs.zsh.initExtraFirst = lib.mkOrder 20000 (
+      /*bash*/ ''
+      ZELLIJ_AUTO_EXIT=true
+      ZELLIJ_AUTO_ATTACH=${toString cfg.autoAttach}
+      eval "$(zellij setup --generate-auto-start zsh)"
+    ''
+    );
+
+    home.file.".config/zellij/config.kdl".text = /*kdl*/ ''
+      theme "catppuccin-mocha";
+
+      keybinds clear-defaults=true {
+        normal {
+            bind "Ctrl a" { SwitchToMode "tmux"; }
+        }
+
+        locked {
+            bind "Ctrl a" { SwitchToMode "normal"; }
+        }
+
+        tmux {
+            // Switching modes
+            bind "Ctrl a" "Ctrl c" "Esc" { SwitchToMode "Normal"; }
+            bind "w" { SwitchToMode "Resize"; }
+            bind "e" { SwitchToMode "Scroll"; }
+            bind "s" { SwitchToMode "Session"; }
+            bind "r" { SwitchToMode "RenamePane"; PaneNameInput 0; }
+            bind "R" { SwitchToMode "RenameTab"; TabNameInput 0; }
+            bind "/" { SwitchToMode "EnterSearch"; SearchInput 0; }
+            bind "\\" { SwitchToMode "locked"; }
+
+
+            // Pane management
+            bind "Enter" { NewPane "Right"; SwitchToMode "Normal"; };
+            bind "Backspace" { NewPane "Down"; SwitchToMode "Normal"; };
+            bind "q" { CloseFocus; SwitchToMode "Normal"; }
+            bind "h" { MoveFocus "Left"; SwitchToMode "Normal"; }
+            bind "j" { MoveFocus "Down"; SwitchToMode "Normal"; }
+            bind "k" { MoveFocus "Up"; SwitchToMode "Normal"; }
+            bind "l" { MoveFocus "Right"; SwitchToMode "Normal"; }
+            bind "H" { MovePane "Left"; SwitchToMode "Normal"; }
+            bind "J" { MovePane "Down"; SwitchToMode "Normal"; }
+            bind "K" { MovePane "Up"; SwitchToMode "Normal"; }
+            bind "L" { MovePane "Right"; SwitchToMode "Normal"; }
+            bind "Space" { ToggleFocusFullscreen; SwitchToMode "Normal"; }
+
+            // Tab management
+            bind "t" { NewTab; SwitchToMode "Normal"; }
+            bind "x" { CloseTab; SwitchToMode "Normal"; }
+            bind "1" { GoToTab 1; SwitchToMode "Normal"; }
+            bind "2" { GoToTab 2; SwitchToMode "Normal"; }
+            bind "3" { GoToTab 3; SwitchToMode "Normal"; }
+            bind "4" { GoToTab 4; SwitchToMode "Normal"; }
+            bind "5" { GoToTab 5; SwitchToMode "Normal"; }
+            bind "6" { GoToTab 6; SwitchToMode "Normal"; }
+            bind "7" { GoToTab 7; SwitchToMode "Normal"; }
+            bind "8" { GoToTab 8; SwitchToMode "Normal"; }
+            bind "9" { GoToTab 9; SwitchToMode "Normal"; }
+        }
+
+        resize {
+            bind "Ctrl c" "Esc" { SwitchToMode "Normal"; }
+            bind "h" "Left" { Resize "Increase Left"; }
+            bind "j" "Down" { Resize "Increase Down"; }
+            bind "k" "Up" { Resize "Increase Up"; }
+            bind "l" "Right" { Resize "Increase Right"; }
+            bind "H" { Resize "Decrease Left"; }
+            bind "J" { Resize "Decrease Down"; }
+            bind "K" { Resize "Decrease Up"; }
+            bind "L" { Resize "Decrease Right"; }
+            bind "=" "+" { Resize "Increase"; }
+            bind "-" { Resize "Decrease"; }
+        }
+
+        search {
+            bind "/" { SwitchToMode "EnterSearch"; SearchInput 0; }
+            bind "Ctrl s" { SwitchToMode "Normal"; }
+            bind "Ctrl c" "Esc" { ScrollToBottom; SwitchToMode "Normal"; }
+            bind "j" "Down" { ScrollDown; }
+            bind "k" "Up" { ScrollUp; }
+            bind "Ctrl f" "PageDown" "Right" "l" { PageScrollDown; }
+            bind "Ctrl b" "PageUp" "Left" "h" { PageScrollUp; }
+            bind "d" { HalfPageScrollDown; }
+            bind "u" { HalfPageScrollUp; }
+            bind "n" { Search "down"; }
+            bind "p" { Search "up"; }
+            bind "c" { SearchToggleOption "CaseSensitivity"; }
+            bind "w" { SearchToggleOption "Wrap"; }
+            bind "o" { SearchToggleOption "WholeWord"; }
+        }
+
+        entersearch {
+            bind "Ctrl c" "Esc" { SwitchToMode "Scroll"; }
+            bind "Enter" { SwitchToMode "Search"; }
+        }
+
+        scroll {
+            bind "Esc" { SwitchToMode "Normal"; }
+            bind "e" { EditScrollback; SwitchToMode "Normal"; }
+            bind "/" { SwitchToMode "EnterSearch"; SearchInput 0; }
+            bind "Ctrl c" { ScrollToBottom; SwitchToMode "Normal"; }
+            bind "j" "Down" { ScrollDown; }
+            bind "k" "Up" { ScrollUp; }
+            bind "Ctrl f" "PageDown" "Right" "l" { PageScrollDown; }
+            bind "Ctrl b" "PageUp" "Left" "h" { PageScrollUp; }
+            bind "d" { HalfPageScrollDown; }
+            bind "u" { HalfPageScrollUp; }
+        }
+
+        session {
+            bind "Ctrl c" "Esc" { SwitchToMode "Normal"; }
+            bind "d" { Detach; }
+            bind "s" {
+                LaunchOrFocusPlugin "session-manager" {
+                    floating true
+                    move_to_focused_tab true
+                };
+                SwitchToMode "Normal"
+            }
+            bind "c" {
+                LaunchOrFocusPlugin "configuration" {
+                    floating true
+                    move_to_focused_tab true
+                };
+                SwitchToMode "Normal"
+            }
+        }
+
+        renametab {
+            bind "Ctrl c" "Esc" { SwitchToMode "Normal"; }
+            // bind "Esc" { UndoRenameTab; SwitchToMode "Tab"; }
+        }
+        renamepane {
+            bind "Ctrl c" "Esc" { SwitchToMode "Normal"; }
+            // bind "Esc" { UndoRenamePane; SwitchToMode "Pane"; }
+        }
+
+        // Unused modes is only given escape keys to return to normal mode.
+        pane {
+            bind "Ctrl c" "Esc" { SwitchToMode "Normal"; }
+        }
+
+        move {
+            bind "Ctrl c" "Esc" { SwitchToMode "Normal"; }
+        }
+      }
+    '';
+  };
+}

options/programs.nix

@@ -74,6 +74,23 @@
     home.programs = {
       zathura.enable = lib.mkEnableOption "zathura";
       floorp.enable = lib.mkEnableOption "floorp";
+      zellij = {
+        enable = lib.mkEnableOption "zellij";
+
+        # Wether to enable auto attach to zellij sessions.
+        #
+        # Best used for servers when you want to auto attach to a session when ssh
+        # into a server.
+        #
+        # Desktop usage is not recommended since uses typically have multiple
+        # terminal windows open and it can be confusing to have a terminal
+        # window auto attach to a zellij session.
+        #
+        # Also, there is resurrections features that zellij offers.
+        # So desktop user can just resurrect the session if they want to.
+        autoAttach = lib.mkEnableOption "zellij autoAttach";
+      };
+
     };
 
     programs = {

profiles/homeserver.nix

@@ -44,6 +44,11 @@
       enable = false;
     };
 
+    home.programs.zellij = {
+      enable = true;
+      autoAttach = true;
+    };
+
     services = {
       caddy.enable = true;
       cockpit.enable = true;