From 5251018b601fad54022b50c16bbd864d9b2908c2 Mon Sep 17 00:00:00 2001
From: Doug Hellmann <doug@doughellmann.com>
Date: Mon, 22 Jan 2018 16:55:07 -0500
Subject: [PATCH] add argument error handling to grep-all.sh

Change-Id: I172ca7902af16069ab3da080ab5a1b7a325cc50e
Signed-off-by: Doug Hellmann <doug@doughellmann.com>
---
 tools/grep-all.sh | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tools/grep-all.sh b/tools/grep-all.sh
index ade74a3f61..cafc2b396a 100755
--- a/tools/grep-all.sh
+++ b/tools/grep-all.sh
@@ -17,6 +17,12 @@
 declare -a branches=($(git describe --always) origin/master)
 branches+=($(git branch --no-color -r --list 'origin/stable/*'))
 
+
+if [ $# -ne 1 ]; then
+    echo "Usage: $0 dependency-name" 1>&2
+    exit 1
+fi
+
 function search {
     git grep -hEi "^${1}[=><!]" ${2} -- "${3}"
 }