From 3ed6ac56d03fff0389cd5b30dfd1e1f940fe91d0 Mon Sep 17 00:00:00 2001
From: Max Coplan <mchcopl@gmail.com>
Date: Sat, 24 May 2025 03:00:23 -0700
Subject: [PATCH] feat(preview): teach preview.sh to print directories (#1590)

---
 bin/preview.sh | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/bin/preview.sh b/bin/preview.sh
index a20e85a..eeb0e86 100755
--- a/bin/preview.sh
+++ b/bin/preview.sh
@@ -66,7 +66,7 @@ if [[ -z "$BATCAT" ]]; then
   fi
 fi
 
-if [ -z "$FZF_PREVIEW_COMMAND" ] && [ "${BATCAT:+x}" ]; then
+if [ -z "$FZF_PREVIEW_COMMAND" ] && [ "${BATCAT:+x}" ] && [[ ! -d "$FILE" ]] ; then
   ${BATCAT} --style="${BAT_STYLE:-numbers}" --color=always --pager=never \
       --highlight-line=$CENTER -- "$FILE"
   exit $?
@@ -74,12 +74,15 @@ fi
 
 FILE_LENGTH=${#FILE}
 MIME=$(file --dereference --mime -- "$FILE")
-if [[ "${MIME:FILE_LENGTH}" =~ binary ]]; then
+if [[ "${MIME:FILE_LENGTH}" =~ binary ]] && [[ ! -d "$FILE" ]]; then
   echo "$MIME"
   exit 0
 fi
 
 DEFAULT_COMMAND="highlight -O ansi -l {} || coderay {} || rougify {} || cat {}"
+if [[ -d "$FILE" ]]; then
+  DEFAULT_COMMAND="tree -C -L2 {} || ls -l --color=always {}"
+fi
 CMD=${FZF_PREVIEW_COMMAND:-$DEFAULT_COMMAND}
 CMD=${CMD//{\}/"$(printf %q "$FILE")"}