From 7e64dc21f9050767942ec38500b33bf89f1f7c29 Mon Sep 17 00:00:00 2001
From: Peter Palfrader <peter@palfrader.org>
Date: Tue, 14 Aug 2012 09:18:35 +0000
Subject: rvi: print usage with -h or --help, and with no arguments

git-svn-id: svn+ssh://asteria.noreply.org/svn/weaselutils/trunk@543 bc3d92e2-beff-0310-a7cd-cc87d7ac0ede
---
 rvi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/rvi b/rvi
index c1f2d39..ac279fb 100755
--- a/rvi
+++ b/rvi
@@ -24,6 +24,14 @@
 # wraper for rcs to edit files.  Checks out a file, spawns an editor, and then
 # commits the file again.
 
+if [ "$#" = 0 ]; then
+	echo "Usage: $0 <file>" >&2
+	exit 1
+elif [ "$1" = "-h" ] || [ "$1" = "--help" ]; then
+	echo "Usage: $0 <file>"
+	exit 0
+fi
+
 if ! [ -e "$1" ] ; then
 	echo "$1 does not exist." >&2
 	exit 1
-- 
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