tmux: Add extraConfigBeforePlugins to tmux.config

Adds the possibility to add config before the plugins are loaded

modules/programs/tmux.nix

@@ -1,9 +1,6 @@
 { config, lib, pkgs, ... }:
-
 with lib;
-
 let
-
   cfg = config.programs.tmux;
 
   pluginName = p: if types.package.check p then p.pname else p.plugin.pname;
@@ -127,7 +124,6 @@ let
       # ============================================= #
     '';
   };
-
 in {
   options = {
     programs.tmux = {
@@ -191,6 +187,15 @@ in {
         '';
       };
 
+      extraConfigBeforePlugins = mkOption {
+        type = types.lines;
+        default = "";
+        description = ''
+          Additional configuration to add to
+          {file}`tmux.conf` before the plugins.
+        '';
+      };
+
       historyLimit = mkOption {
         default = 2000;
         example = 5000;
@@ -324,7 +329,7 @@ in {
     };
   };
 
-  config = mkIf cfg.enable (mkMerge ([
+  config = mkIf cfg.enable (mkMerge [
     {
       home.packages = [ cfg.package ]
         ++ optional cfg.tmuxinator.enable pkgs.tmuxinator
@@ -332,7 +337,6 @@ in {
     }
 
     { xdg.configFile."tmux/tmux.conf".text = mkBefore tmuxConf; }
-    { xdg.configFile."tmux/tmux.conf".text = mkAfter cfg.extraConfig; }
 
     (mkIf cfg.secureSocket {
       home.sessionVariables = {
@@ -340,6 +344,11 @@ in {
       };
     })
 
+    {
+      xdg.configFile."tmux/tmux.conf".text =
+        mkAfter cfg.extraConfigBeforePlugins;
+    }
     (mkIf (cfg.plugins != [ ]) configPlugins)
-  ]));
+    { xdg.configFile."tmux/tmux.conf".text = cfg.extraConfig; }
+  ]);
 }

tests/modules/programs/tmux/default.nix

@@ -8,4 +8,5 @@
   tmux-shortcut-without-prefix = ./shortcut-without-prefix.nix;
   tmux-prefix = ./prefix.nix;
   tmux-mouse-enabled = ./mouse-enabled.nix;
+  tmux-extra-config-before-plugins = ./extra-config-before-plugins.nix;
 }

tests/modules/programs/tmux/extra-config-before-plugins.conf

@@ -0,0 +1,39 @@
+# ============================================= #
+# Start with defaults from the Sensible plugin  #
+# --------------------------------------------- #
+run-shell @sensible_rtp@
+# ============================================= #
+
+set  -g default-terminal "screen"
+set  -g base-index      0
+setw -g pane-base-index 0
+
+
+
+
+
+set -g status-keys emacs
+set -g mode-keys   emacs
+
+
+
+
+
+
+
+set  -g mouse             on
+setw -g aggressive-resize off
+setw -g clock-mode-style  12
+set  -s escape-time       500
+set  -g history-limit     2000
+set -g mouse off
+# ============================================= #
+# Load plugins with Home Manager                #
+# --------------------------------------------- #
+
+# tmuxplugin-logging
+# ---------------------
+
+run-shell @tmuxplugin_logging_rtp@
+
+# ============================================= #

tests/modules/programs/tmux/extra-config-before-plugins.nix

@@ -0,0 +1,28 @@
+{ config, lib, pkgs, ... }:
+with lib; {
+  config = {
+    programs.tmux = {
+      enable = true;
+      mouse = true;
+      extraConfigBeforePlugins = ''
+        set -g mouse off
+      '';
+
+      plugins = with pkgs.tmuxPlugins; [ logging ];
+    };
+
+    nixpkgs.overlays = [
+      (self: super: {
+        tmuxPlugins = super.tmuxPlugins // {
+          sensible = super.tmuxPlugins.sensible // { rtp = "@sensible_rtp@"; };
+        };
+      })
+    ];
+
+    nmt.script = ''
+      assertFileExists home-files/.config/tmux/tmux.conf
+      assertFileContent home-files/.config/tmux/tmux.conf \
+        ${./mouse-enabled.conf}
+    '';
+  };
+}