Incorporate outfoxxed feedback

default/quickshell/omarchy-shell/scripts/image-picker-list.sh

@@ -0,0 +1,45 @@
+#!/bin/bash
+
+image_dirs=${1:-}
+cache_dir=${XDG_CACHE_HOME:-$HOME/.cache}/omarchy/image-selector
+index_file="$cache_dir/index.tsv"
+
+mkdir -p "$cache_dir"
+
+thumbnail_for() {
+  local image="$1"
+  local signature hash thumbnail legacy_hash
+
+  signature=$(stat -Lc '%s:%Y' "$image") || return
+  hash=$(awk -F '\t' -v path="$image" -v sig="$signature" '$1 == path && $2 == sig { print $3; exit }' "$index_file" 2>/dev/null)
+
+  if [[ -z $hash ]]; then
+    hash=$(printf '%s\t%s' "$image" "$signature" | md5sum | cut -d ' ' -f 1)
+  fi
+
+  thumbnail="$cache_dir/$hash.jpg"
+
+  if [[ ! -f $thumbnail ]]; then
+    # Older on-demand picker code keyed fallback thumbnails by file content.
+    # Keep finding those if a user still has them cached.
+    legacy_hash=$(md5sum "$image" 2>/dev/null | cut -d ' ' -f 1)
+    [[ -n $legacy_hash && -f $cache_dir/$legacy_hash.jpg ]] && thumbnail="$cache_dir/$legacy_hash.jpg"
+  fi
+
+  if [[ -f $thumbnail ]]; then
+    printf '%s' "$thumbnail"
+  else
+    printf '%s' "$image"
+  fi
+}
+
+while IFS= read -r dir; do
+  [[ -n $dir && -d $dir ]] || continue
+  find -L "$dir" -maxdepth 1 -type f \
+    \( -iname '*.jpg' -o -iname '*.jpeg' -o -iname '*.png' -o -iname '*.gif' -o -iname '*.bmp' -o -iname '*.webp' \) \
+    -print0 2>/dev/null
+done <<<"$image_dirs" | sort -z | while IFS= read -r -d '' image; do
+  thumbnail=$(thumbnail_for "$image")
+  [[ -n $thumbnail ]] || continue
+  printf '%s\t%s\n' "$image" "$thumbnail"
+done