From 1a0d26f4ca1427f09af46dc933c79b2a388ea5a1 Mon Sep 17 00:00:00 2001
From: Rene Saarsoo <nene@triin.net>
Date: Wed, 30 Mar 2022 14:09:30 +0300
Subject: [PATCH] Read file from stdin

---
 src/parseCliOptions.ts | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)

diff --git a/src/parseCliOptions.ts b/src/parseCliOptions.ts
index 02c1b11..83889e7 100644
--- a/src/parseCliOptions.ts
+++ b/src/parseCliOptions.ts
@@ -17,13 +17,10 @@ export const parseCliOptions = (): CliOptions => {
     default: false,
   });
 
-  argParser.add_argument("file", { nargs: 1 });
+  argParser.add_argument("file", {
+    nargs: "?",
+    default: 0, // Default to reading STDIN
+  });
 
-  // As we only allow one file as input,
-  // convert filenames array to just a single string.
-  const { file, ...rest } = argParser.parse_args();
-  return {
-    file: file[0],
-    ...rest,
-  };
+  return argParser.parse_args();
 };