Fix detecting changed definitions in mirror script

Grep mustn't get invoked with 0 parameters, otherwise it will hang waiting on stdin.

Fix detecting changed definitions in mirror script
Grep mustn't get invoked with 0 parameters, otherwise it will hang waiting on stdin.
08b3f2c8 · Mislav Marohnić · 4817d209 · 08b3f2c8
Commit 08b3f2c8 authored Oct 24, 2013 by Mislav Marohnić
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script/mirror
+2 -1

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--- a/script/mirror
+++ b/script/mirror
@@ -38,7 +38,8 @@ changed_files() {
 }
 potentially_new_packages() {
-  extract_urls $(changed_files "$1" -- ./share/ruby-build)
+  local files="$(changed_files "$1" -- ./share/ruby-build)"
+  [ -n "$files" ] && extract_urls $files
 }
 extract_urls() {