WIP: home: delta: use stand-alone configuration file

Ideally, I'd like for `delta` to just read a configuration file at
`$XDG_CONFIG_HOME/delta/config` by default, but upstream seems somewhat
reticent to the idea :-/.

TODO:
* `git.enable = false` would break the standalone configuration
* using a wrapper which sets `--config` might be better than includes

hosts/homes/ambroisie@mousqueton/default.nix

@@ -15,9 +15,6 @@
       # I use scripts that use the passthrough sequence often on this host
       enablePassthrough = true;
 
-      # Frequent reboots mean that session persistence can be handy
-      enableResurrect = true;
-
       terminalFeatures = {
         # HTerm uses `xterm-256color` as its `$TERM`, so use that here
         xterm-256color = { };

modules/home/packages/default.nix

@@ -1,7 +1,6 @@
-{ config, lib, pkgs, osConfig, ... }:
+{ config, lib, pkgs, ... }:
 let
   cfg = config.my.home.packages;
-  useGlobalPkgs = osConfig.home-manager.useGlobalPkgs or false;
 in
 {
   options.my.home.packages = with lib; {
@@ -30,7 +29,7 @@ in
       tree
     ] ++ cfg.additionalPackages);
 
-    nixpkgs.config = lib.mkIf (!useGlobalPkgs) {
+    nixpkgs.config = {
       inherit (cfg) allowAliases allowUnfree;
     };
   };

modules/home/pager/default.nix

@@ -16,11 +16,7 @@ in
       LESS = "-R -+X -c";
       # Better XDG compliance
       LESSHISTFILE = "${config.xdg.stateHome}/less/history";
+      LESSKEY = "${config.xdg.configHome}/less/lesskey";
     };
-
-    xdg.configFile."lesskey".text = ''
-      # Quit without clearing the screen on `Q`
-      Q toggle-option -!^Predraw-on-quit\nq
-    '';
   };
 }

modules/home/tmux/default.nix

@@ -20,8 +20,6 @@ in
 
     enablePassthrough = mkEnableOption "tmux DCS passthrough sequence";
 
-    enableResurrect = mkEnableOption "tmux-resurrect plugin";
-
     terminalFeatures = mkOption {
       type = with types; attrsOf (submodule {
         options = {
@@ -52,7 +50,6 @@ in
     mouse = false; # I dislike mouse support
     focusEvents = true; # Report focus events
     terminal = "tmux-256color"; # I want accurate termcap info
-    aggressiveResize = true; # Automatic resize when switching client size
 
     plugins = with pkgs.tmuxPlugins; [
       # Open high-lighted files in copy mode
@@ -82,13 +79,6 @@ in
           set -g status-right '#{prefix_highlight} %a %Y-%m-%d %H:%M'
         '';
       }
-      # Resurrect sessions
-      (lib.optionalAttrs cfg.enableResurrect {
-        plugin = resurrect;
-        extraConfig = ''
-          set -g @resurrect-dir '${config.xdg.stateHome}/tmux/resurrect'
-        '';
-      })
     ];
 
     extraConfig = ''