lf: optimize previews

.config/lf/preview/preview

@@ -11,7 +11,7 @@ image() {
     file=${1:-$f}
     # shellcheck disable=2086
     chafa -f sixel -s "${w}x${h}" --polite on --animate false "$file"
-    exit 0
+    exit
 }
 
 video() {
@@ -23,15 +23,24 @@ video() {
 }
 
 text() {
-    bat \
-        --color=always \
-        --italic-text=always \
-        --style=plain \
-        --pager=never \
-        --tabs=4 \
-        --theme=base16 \
-        --terminal-width="$((w - 2))" "$@" "$f"
-    exit 1
+    for cmd in bat batcat cat; do
+        command -v $cmd >/dev/null 2>&1 && break
+    done
+    case $cmd in
+        bat*)
+            $cmd \
+                --color=always \
+                --italic-text=always \
+                --style=plain \
+                --pager=never \
+                --tabs=4 \
+                --theme=base16 \
+                --terminal-width="$((w - 2))" "$@" "$f"
+            ;;
+        cat)
+            $cmd "$f"
+            ;;
+    esac
 }
 
 run() {
@@ -101,13 +110,13 @@ CACHE="${XDG_CACHE_HOME}/lf/$(stat --printf '%n\0%i\0%F\0%s\0%W\0%Y' -- "$(readl
 # Special cases
 [ "$(dirname "$(realpath "$f")" | rev | cut -d/ -f1 | rev)" = "factscache" ] &&
     [ -f "$(dirname "$(dirname "$(realpath "$f")")")/ansible.cfg" ] &&
-    jq -C <"$f" && exit 1
+    jq -C <"$f" && exit
 
 giorun="$(gio info "$f" 2>/dev/null | grep standard::content-type | cut -d' ' -f4)"
-mimetest "$giorun" && exit 1
+mimetest "$giorun" && exit
 
 filerun="$(file --brief --dereference --mime-type "$f")"
-mimetest "$filerun" && exit 1
+mimetest "$filerun" && exit
 
 printf "%b" "\$(file --mime-type)\t\t\t : $filerun\n"
 [ -n "$giorun" ] && printf "%b" "\$(gio info)\t\t\t\t : $giorun\n"