From 78cd27df781aa5eba37fc6d215c389a59979eadd Mon Sep 17 00:00:00 2001
From: Thanh Ha <thanh.ha@linuxfoundation.org>
Date: Mon, 16 Oct 2017 22:14:01 -0400
Subject: [PATCH] Fail gracefully when no files to sign

Fixes issue where if there are no files to sign detected the script just
hangs indefinitely. Instead if the files_to_sign array is empty then
exit 1 and inform user.

Change-Id: I82a5957faedfe739800305a8224fed67d2c74801
Signed-off-by: Thanh Ha <thanh.ha@linuxfoundation.org>
---
 shell/sign | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/shell/sign b/shell/sign
index 4000bbfa..1839546c 100755
--- a/shell/sign
+++ b/shell/sign
@@ -66,6 +66,11 @@ sign_dir() {
                                     ! -name "maven-metadata-local.xml" \
                                     ! -name "maven-metadata.xml"))
 
+    if [ "${#files_to_sign[@]}" -eq 0 ]; then
+        echo "ERROR: No files to sign. Quitting..."
+        exit 1
+    fi
+
     if hash parallel 2>/dev/null; then
         echo "Signing in parallel..."
         parallel --jobs 200% --halt now,fail=1 "$GPG_BIN --batch -abq {}" ::: ${files_to_sign[*]}
-- 
2.16.6