To feed generator, add handler for case of empty blog.

diff --git a/processor/feed.xml.do b/processor/feed.xml.do
index 717fa89c9590c96afdb645f4860288649e2e4067..0bc7318b0dc881bd094b81a17254d1977a5d48a8 100644 (file)
--- a/processor/feed.xml.do
+++ b/processor/feed.xml.do
@@ -47,7 +47,11 @@ for file in ./*.rst ./*.md; do
 done
 
 # Derive feed modification date from snippets.
-mod_dates=$(grep -hE "^<updated>" ./${metadata_dir}/*.feed_snippet | sed -E 's/<.?updated>//g')
+n_snippet_files=`ls -1 ./${metadata_dir}/*.feed_snippet 2>/dev/null | wc -l`
+if [ $n_snippet_files != 0 ]
+then
+  mod_dates=$(grep -hE "^<updated>" ./${metadata_dir}/*.feed_snippet | sed -E 's/<.?updated>//g')
+fi
 last_mod_unix=0
 for date in $mod_dates; do
   date_unix=$(date -u "+%s" -d "${date}")