From e098eb43a28f55942f3185033ebe3e09d86198d7 Mon Sep 17 00:00:00 2001
From: sharkdp <davidpeter@web.de>
Date: Wed, 12 Sep 2018 21:53:41 +0200
Subject: [PATCH] Do not show file header for directories

This also adds a better error message.

closes #292
---
 src/controller.rs | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/controller.rs b/src/controller.rs
index 73eb8996..9881669f 100644
--- a/src/controller.rs
+++ b/src/controller.rs
@@ -53,7 +53,15 @@ impl<'b> Controller<'b> {
         {
             let reader: Box<BufRead> = match filename {
                 InputFile::StdIn => Box::new(stdin.lock()),
-                InputFile::Ordinary(filename) => Box::new(BufReader::new(File::open(filename)?)),
+                InputFile::Ordinary(filename) => {
+                    let file = File::open(filename)?;
+
+                    if file.metadata()?.is_dir() {
+                        return Err(format!("'{}' is a directory.", filename).into());
+                    }
+
+                    Box::new(BufReader::new(file))
+                }
                 InputFile::ThemePreviewFile => Box::new(THEME_PREVIEW_FILE),
             };