From ff978ec1018bf759efb0c7541c61507e937985b1 Mon Sep 17 00:00:00 2001
From: Alexey Shpakovsky <alexey@shpakovsky.ru>
Date: Thu, 26 Jun 2014 07:11:02 +0200
Subject: [PATCH] proper check for empty variable

---
 bb.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/bb.sh b/bb.sh
index d28bf17..01c1c6d 100755
--- a/bb.sh
+++ b/bb.sh
@@ -408,7 +408,7 @@ edit() {
     echo "Posted $filename"
     tags_after="$(tags_in_post $filename)"
     relevant_tags="$(echo "$tags_before $tags_after" | tr ' ' '\n' | sort -u | tr '\n' ' ')"
-    if [ "$relevant_tags" ]; then
+    if [ ! -z "$relevant_tags" ]; then
         relevant_posts="$(posts_with_tags $relevant_tags) $filename"
         rebuild_tags "$relevant_posts" "$relevant_tags"
     fi
@@ -682,7 +682,7 @@ EOF
     chmod 644 "$filename"
     echo "Posted $filename"
     relevant_tags="$(tags_in_post $filename)"
-    if [ "$relevant_tags" ]; then
+    if [ ! -z "$relevant_tags" ]; then
         relevant_posts="$(posts_with_tags $relevant_tags) $filename"
         rebuild_tags "$relevant_posts" "$relevant_tags"
     fi