config: basic tmux for nixos 🎨 💩

nixos/tmux.nix

@@ -0,0 +1,57 @@
+{ config, pkgs, ... }:
+
+{
+
+  programs.tmux = {
+    enable = true;
+    clock24 = true;
+    extraConfig = ''
+      # remap prefix from ^+A to ^+B (for nested tmux sessions)
+      unbind C-b
+      set -g prefix M-f
+      bind M-f send-prefix
+
+      # nvim 'checkhealth' advice
+      set-option -g focus-events on
+      set-option -g default-terminal "screen-256color"
+      set-option -sa terminal-overrides ',xterm-256color:RGB'
+
+      # enable mouse support for switching panes/windows
+      # set -g mouse on
+
+      # extend history
+      set -g history-limit 100000
+
+      # set vi keybindings
+      setw -g mode-keys vi
+      bind -T copy-mode-vi Enter send-keys -X copy-pipe-and-cancel "xsel -i --clipboard"
+
+      # reduce escape time
+      set-option -sg escape-time 20
+
+      # pane movement shortcuts
+      bind h select-pane -L
+      bind j select-pane -D
+      bind k select-pane -U
+      bind l select-pane -R
+
+      # window selection
+      bind -r C-h select-window -t :-
+      bind -r C-l select-window -t :+
+
+      # Resize pane shortcuts
+      bind -r H resize-pane -L 10
+      bind -r J resize-pane -D 10
+      bind -r K resize-pane -U 10
+      bind -r L resize-pane -R 10
+
+      # split with dash and vbar
+      bind | split-window -h -c "#{pane_current_path}"
+      bind - split-window -v -c "#{pane_current_path}"
+
+      # server-tmux only:
+      # fix ssh agent when tmux is detached
+      # setenv -g SSH_AUTH_SOCK $HOME/.ssh/ssh_auth_sock
+    '';
+  };
+}