Updates and patches to ranger + kitty setup

user/app/ranger/ranger.nix

@@ -10,9 +10,12 @@ let myCbxScript = ''
   '';
 in
 {
+  imports = [ ../../pkgs/ranger.nix ];
+
   home.packages = with pkgs; [
     ranger
     xdragon
+    highlight
     (pkgs.writeScriptBin "cbx" myCbxScript)
   ];
   home.file.".config/ranger/rc.conf".source = ./rc.conf;

user/app/ranger/rifle.conf

@@ -130,7 +130,7 @@ ext cbz,  has zathura,      X, flag f = zathura -- "$@"
 #-------------------------------------------
 # Images
 #-------------------------------------------
-mime ^image, has nsxiv,        X, flag f = nsxiv "$@"
+mime ^image, has krita,        X, flag f = krita "$@"
 mime ^image/svg, has inkscape, X, flag f = inkscape "$@"
 
 #-------------------------------------------

user/pkgs/ranger.nix

@@ -0,0 +1,23 @@
+{ lib, pkgs, ... }:
+
+{
+  nixpkgs.overlays = [
+    (self: super:
+      {
+        ranger = super.ranger.overrideAttrs (oldAttrs: rec {
+        preConfigure = ''
+          substituteInPlace ranger/__init__.py \
+            --replace "DEFAULT_PAGER = 'less'" "DEFAULT_PAGER = '${lib.getBin pkgs.less}/bin/less'"
+      
+          # give image previews out of the box when building with w3m
+          substituteInPlace ranger/config/rc.conf \
+            --replace "set preview_images false" "set preview_images true"
+
+          substituteInPlace ranger/ext/img_display.py \
+            --replace "self.image_id -= 1" "self.image_id = max(0, self.image_id - 1)"
+        '';
+        });
+      }
+    )
+  ];
+}