@@ -0,0 +1,24 @@ 
+#!/bin/sh
+set -e
+
+if [ -n "$DISPLAY" ]; then
+  export FIFO_UEBERZUG="${TMPDIR:-/tmp}/lf-ueberzug-$$"
+
+  cleanup() {
+    exec 3>&-
+    rm "$FIFO_UEBERZUG"
+  }
+
+  mkfifo "$FIFO_UEBERZUG"
+  ueberzug layer -s <"$FIFO_UEBERZUG" &
+  exec 3>"$FIFO_UEBERZUG"
+  trap cleanup EXIT
+
+  if ! [ -d "$HOME/.cache/lf" ]; then
+    mkdir -p "$HOME/.cache/lf"
+  fi
+
+  lf "$@" 3>&-
+else
+  exec lf "$@"
+fi

@@ -0,0 +1,5 @@ 
+#!/bin/sh
+set -euf
+if [ -n "${FIFO_UEBERZUG-}" ]; then
+  printf '{"action":"remove","identifier":"preview"}\n' >"$FIFO_UEBERZUG"
+fi

@@ -0,0 +1,2 @@ 
+set previewer ~/.config/lf/pv
+set cleaner ~/.config/lf/cls

@@ -0,0 +1,151 @@ 
+#!/bin/sh
+set -euf
+
+draw() {
+  jq -nc --argjson x "$x" --argjson y "$y" \
+    --argjson width "$width" --argjson height "$height" \
+    --arg path "$1" '
+    {
+      "action": "add",
+      "identifier": "preview",
+      "x": $x,
+      "y": $y,
+      "width": $width,
+      "height": $height,
+      "scaler": "contain",
+      "scaling_position_x": 0.5,
+      "scaling_position_y": 0.5,
+      "path": $path
+    }' >"$FIFO_UEBERZUG"
+  exit 1
+}
+
+hash() {
+  printf '%s/.cache/lf/%s' "$HOME" \
+    "$(stat --printf '%n\0%i\0%F\0%s\0%W\0%Y' -- "$(readlink -f -- "$1")" | sha256sum | cut -d' ' -f1)"
+}
+
+cache() {
+  if [ -f "$1" ]; then
+    draw "$1"
+  fi
+}
+
+file="$1"
+width="$2"
+height="$3"
+x="$4"
+y="$5"
+
+if ! [ -f "$file" ] && ! [ -h "$file" ]; then
+  exit
+fi
+
+default_x="1920"
+default_y="1080"
+
+ext="$(printf '%s' "$file" | tr '[:upper:]' '[:lower:]')"
+ext="${ext##*.}"
+case "$ext" in
+  7z|a|ace|alz|arc|arj|bz|bz2|cab|cpio|deb|gz|jar|\
+  lha|lrz|lz|lzh|lzma|lzo|rar|rpm|rz|t7z|tar|tbz|\
+  tbz2|tgz|tlz|txz|tZ|tzo|war|xz|Z|zip)
+    als -- "$file"
+    exit 0
+    ;;
+  [1-8])
+    COLUMNS="$width" man -- "$file" | col -b
+    exit 0
+    ;;
+  pdf)
+    if [ -n "${FIFO_UEBERZUG-}" ]; then
+      cache="$(hash "$file")"
+      cache "$cache.jpg"
+      pdftoppm -f 1 -l 1 \
+        -scale-to-x "$default_x" \
+        -scale-to-y -1 \
+        -singlefile \
+        -jpeg \
+        -- "$file" "$cache"
+      draw "$cache.jpg"
+    else
+      pdftotext -nopgbrk -q -- "$file" -
+      exit 0
+    fi
+    ;;
+  djvu|djv)
+    if [ -n "${FIFO_UEBERZUG-}" ]; then
+      cache="$(hash "$file").tiff"
+      cache "$cache"
+      ddjvu -format=tiff -quality=90 -page=1 -size="${default_x}x${default_y}" \
+        - "$cache" <"$file"
+      draw "$cache"
+    else
+      djvutxt - <"$file"
+      exit 0
+    fi
+    ;;
+  docx|odt|epub)
+    pandoc -s -t plain -- "$file"
+    exit 0
+    ;;
+  htm|html|xhtml)
+    lynx -dump -- "$file"
+    exit 0
+    ;;
+  svg)
+    if [ -n "${FIFO_UEBERZUG-}" ]; then
+      cache="$(hash "$file").jpg"
+      cache "$cache"
+      convert -- "$file" "$cache"
+      draw "$cache"
+    fi
+    ;;
+esac
+
+mime="$(file -Lb --mime-type -- "$file")"
+case "$mime" in
+  text/*)
+    source-highlight -q --outlang-def=esc.outlang --style-file=esc.style -i "$file" || cat -- "$file"
+    exit 0
+    ;;
+  image/*)
+    if [ -n "${FIFO_UEBERZUG-}" ]; then
+      orientation="$(identify -format '%[EXIF:Orientation]\n' -- "$file")"
+      if [ -n "$orientation" ] && [ "$orientation" != 1 ]; then
+        cache="$(hash "$file").jpg"
+        cache "$cache"
+        convert -- "$file" -auto-orient "$cache"
+        draw "$cache"
+      else
+        draw "$file"
+      fi
+    fi
+    ;;
+  video/*)
+    if [ -n "${FIFO_UEBERZUG-}" ]; then
+      cache="$(hash "$file").jpg"
+      cache "$cache"
+      ffmpegthumbnailer -i "$file" -o "$cache" -s 0
+      draw "$cache"
+    fi
+    ;;
+esac
+
+header_text="File Type Classification"
+header=""
+len="$(( (width - (${#header_text} + 2)) / 2 ))"
+if [ "$len" -gt 0 ]; then
+  for i in $(seq "$len"); do
+    header="-$header"
+  done
+  header="$header $header_text "
+  for i in $(seq "$len"); do
+    header="$header-"
+  done
+else
+  header="$header_text"
+fi
+printf '\033[7m%s\033[0m\n' "$header"
+file -Lb -- "$file" | fold -s -w "$width"
+exit 0