From b1d5779c3bf67ae84420a3d3f70dbe0e794fb34b Mon Sep 17 00:00:00 2001
From: Luca Bilke <luca@asmara.fritz.box>
Date: Tue, 23 Jan 2024 22:53:10 +0100
Subject: [PATCH] improve mimetype detection in lf previews

---
 .config/lf/preview | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/.config/lf/preview b/.config/lf/preview
index 4b15961a2..cf62f0fcf 100755
--- a/.config/lf/preview
+++ b/.config/lf/preview
@@ -40,7 +40,8 @@ batorcat() {
 }
 
 run() {
-	if ! command -v $1 >/dev/null 2>&1; then
+    #shellcheck disable=SC2068
+	if ! command -v "$1" >/dev/null 2>&1; then
 		printf "%b" "${RED}Cannot execute $1${RESET}"
 		exit 1
 	elif $@; then
@@ -53,7 +54,8 @@ run() {
 
 CACHE="$HOME/.cache/lf/thumbnail-$(stat --printf '%n\0%i\0%F\0%s\0%W\0%Y' -- "$(readlink -f "$1")" | sha256sum | awk '{print $1}')"
 
-case "$(xdg-mime query filetype "$1")" in
+# We set the desktop to gnome to force usage of `gio` over `file` for better detection
+case "$(env XDG_CURRENT_DESKTOP=GNOME xdg-mime query filetype "$1")" in
 */x-bzip-compressed-tar | */x-compressed-tar | */x-xz-compressed-tar) run als -- "$1" ;;
 */x-7z-compressed | */vnd.rar | */x-tar | */zip | */x-java-archive | */x-xz) run 7z l "$1" | sed 1,11d ;;
 */x-cd-image) run iso-info --no-header -l "$1" ;;
@@ -85,10 +87,6 @@ text/* | */json | */schema+json | */xml | */javascript) batorcat "$1" "$2" ;;
 	;;
 esac
 
-case "$(file -bL --mime-type "$1")" in
-text/*) batorcat "$1" "$2" ;;
-esac
-
 xdg-mime query filetype "$1"
 mediainfo "$1"