From 1cfa3ee4c7c1741fca3cd26fb13451621d14bbf2 Mon Sep 17 00:00:00 2001
From: Junegunn Choi <junegunn.c@gmail.com>
Date: Mon, 30 Oct 2023 00:05:20 +0900
Subject: [PATCH] fzf-preview.sh: Check the number of arguments

---
 bin/fzf-preview.sh | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/bin/fzf-preview.sh b/bin/fzf-preview.sh
index bd12e3b..1818f04 100755
--- a/bin/fzf-preview.sh
+++ b/bin/fzf-preview.sh
@@ -7,7 +7,12 @@
 # - https://github.com/hpjansson/chafa
 # - https://github.com/sharkdp/bat
 
-file=$1
+if [[ $# -ne 1 ]]; then
+  >&2 echo "usage: $0 FILENAME"
+  exit 1
+fi
+
+file=${1/#\~\//$HOME/}
 type=$(file --mime-type "$file")
 
 if [[ ! $type =~ image/ ]]; then