lf with sixels support

home/lf/lf-wrapper.nix

@@ -6,7 +6,6 @@ let
   rm = "${pkgs.coreutils-full}/bin/rm";
   mkdir = "${pkgs.coreutils-full}/bin/mkdir";
   mkfifo = "${pkgs.coreutils-full}/bin/mkfifo";
-  ueberzug = "${pkgs.ueberzug}/bin/ueberzug";
   lfcache = "${config.home.homeDirectory}/.cache/lf";
 in pkgs.writeScriptBin "lf-wrapper" ''
   #!${shell}
@@ -176,20 +175,10 @@ in pkgs.writeScriptBin "lf-wrapper" ''
   *.nix=:\
   "
 
-  cleanup () {
-      exec 3>&-
-      rm "$FIFO_UEBERZUG"
-  }
-
   if [ -n "$SSH_CLIENT" ] || [ -n "$SSH_TTY" ]; then
       ${lf} "$@"
   else
       [ ! -d "${lfcache}" ] && ${mkdir} -p "${lfcache}"
-      export FIFO_UEBERZUG="${lfcache}/ueberzug-''$''$"
+      ${lf} "$@" 3>&-
-      ${mkfifo} "$FIFO_UEBERZUG"
-      ${ueberzug} layer -s <"$FIFO_UEBERZUG" -p json &
-      exec 3>"$FIFO_UEBERZUG"
-      trap cleanup HUP INT QUIT TERM PWR EXIT
-      ${lf} "$@"
   fi
 ''

home/lf/pv.nix

@@ -1,31 +1,28 @@
 { config, pkgs, ... }:
 
 let
+  atool = "${pkgs.atool}/bin/atool";
+  awk = "${pkgs.gawk}/bin/awk";
+  bat = "${pkgs.bat}/bin/bat";
+  chafa = "${pkgs.chafa}/bin/chafa";
+  col = "${pkgs.util-linux}/bin/col";
+  ffmpegthumbnailer = "${pkgs.ffmpegthumbnailer}/bin/ffmpegthumbnailer";
   file = "${pkgs.file}/bin/file";
+  gpg = "${pkgs.gnupg}/bin/gpg";
+  lfcache = "${config.home.homeDirectory}/.cache/lf";
   lynx = "${pkgs.lynx}/bin/lynx";
   man = "${pkgs.man}/bin/man";
-  col = "${pkgs.util-linux}/bin/col";
-  bat = "${pkgs.bat}/bin/bat";
-  atool = "${pkgs.atool}/bin/atool";
-  odt2txt = "${pkgs.odt2txt}/bin/odt2txt";
-  gpg = "${pkgs.gnupg}/bin/gpg";
   mediainfo = "${pkgs.mediainfo}/bin/mediainfo";
+  odt2txt = "${pkgs.odt2txt}/bin/odt2txt";
+  pdftoppm = "${pkgs.poppler_utils}/bin/pdftoppm";
   printf = "${pkgs.coreutils-full}/bin/printf";
-  lfcache = "${config.home.homeDirectory}/.cache/lf";
-  stat = "${pkgs.coreutils-full}/bin/stat";
   readlink = "${pkgs.coreutils-full}/bin/readlink";
   sha256sum = "${pkgs.coreutils-full}/bin/sha256sum";
-  awk = "${pkgs.gawk}/bin/awk";
+  stat = "${pkgs.coreutils-full}/bin/stat";
-  ffmpegthumbnailer = "${pkgs.ffmpegthumbnailer}/bin/ffmpegthumbnailer";
-  pdftoppm = "${pkgs.poppler_utils}/bin/pdftoppm";
 in pkgs.writeShellScript "pv.sh" ''
 
   image() {
-      if [ -n "$DISPLAY" ] && [ -z "$WAYLAND_DISPLAY" ] && [ -n "$FIFO_UEBERZUG" ]; then
+      ${chafa} "$1" -f sixel -s "$(($2-2))x$3" | sed 's/#/\n#/g'
-          ${printf} '{"action": "add", "identifier": "PREVIEW", "x": "%s", "y": "%s", "width": "%s", "height": "%s", "scaler": "contain", "path": "%s"}\n' "$4" "$5" "$(($2-1))" "$(($3-1))" "$1" > "$FIFO_UEBERZUG"
-      else
-          ${mediainfo} "$1"
-      fi
   }
 
   get_cache_file () {

home/nixos-common.nix

@@ -1,6 +1,21 @@
 { config, inputs, pkgs, stablePkgs, ... }:
 
 {
+
+  nixpkgs.overlays = [
+    (self: super: {
+      # use lf fork with support for sixel graphics
+      lf = super.lf.overrideAttrs (old: {
+        src = super.fetchFromGitHub {
+          owner = "horriblename";
+          repo = "lf";
+          rev = "8997e5b03772d5628ed6a490777048581d978674";
+          sha256 = "rJq2Tv3py6HvRI1O2odTdGb1ksdijhO3FcJsPj5dm34=";
+        };
+      });
+    })
+  ];
+
   # Let Home Manager install and manage itself.
   # programs.home-manager.enable = true;