Add list filter

Basic mechanism for suppressing commits.

repo2html

@@ -97,7 +97,7 @@ raw_tpl=
 # configuration (note that this setup in conjunction with the below defaults
 # imply that they can be passed in as environment variables as an alternative to
 # options)
-while getopts t:d:c:e:l:f:i:o:u:C:E:R:T:U: opt; do
+while getopts t:d:c:e:l:f:F:i:o:u:C:E:R:T:U: opt; do
   case "$opt" in
     t) title="$OPTARG";;
     d) desc="$OPTARG";;
@@ -105,6 +105,7 @@ while getopts t:d:c:e:l:f:i:o:u:C:E:R:T:U: opt; do
     e) html_ext="$OPTARG";;
     l) license="$OPTARG";;
     f) msgfmt="$path_root/$OPTARG";;
+    F) listfilter="$path_root/$OPTARG";;
     i)
       do_raw=1
       raw_tpl="$OPTARG"
@@ -177,13 +178,15 @@ export cref_errlog="$cref_errlog_first"
 # reference and further processing); note that we clear the cref_errlog for the
 # RSS feed so that we do not get duplicates
 listcache="$path_root/.clist"
-"$repotype"/list | tee \
-  >( cref_errlog= ./rss "$repotype" "$url_root" "$rss_count" \
-     > "$path_out/rss.xml" \
-     2> >( _rssout )
- ) \
-  "$listcache" \
-  | ./processor "$repotype" "$path_out" 2> >( _htmlout )
+"$repotype"/list \
+  | grep -vf "${listfilter:-/dev/null}" \
+  | tee \
+    >( cref_errlog= ./rss "$repotype" "$url_root" "$rss_count" \
+       > "$path_out/rss.xml" \
+       2> >( _rssout )
+   ) \
+    "$listcache" \
+    | ./processor "$repotype" "$path_out" 2> >( _htmlout )
 
 # re-process cref errors (but only once; any errors at this point will be
 # considered to be problem refs) TODO: RSS; note that we redirect all output to