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don't invoke sed when no tag given

the bug was that sed was expecting file content on stdin when didn't receive
any filename, and script was "frozen" when someone tried to edit a post
without any tags.
Alexey Shpakovsky 11 years ago
parent
commit
93808a0254
1 changed files with 1 additions and 0 deletions
  1. 1 0
      bb.sh

+ 1 - 0
bb.sh

@@ -784,6 +784,7 @@ tags_in_post() {
 # Arguments are tags
 # Prints one line with space-separated tags to stdout
 posts_with_tags() {
+    [ $# -lt 1 ] && return
     tag_files="$(echo "$@" | sed "s/\S\+/tag_&.html/g")"
     sed -n '/^<h3><a class="ablack" href="[^"]*">/{s/.*href="\([^"]*\)">.*/\1/;p}' $tag_files
 }