+ exit 0;
+ }
+} #}}}
+
+sub launchaggregation () { #{{{
+ # See if any feeds need aggregation.
+ loadstate();
+ my @feeds=needsaggregate();
+ return unless @feeds;
+ if (! lockaggregate()) {
+ debug("an aggregation process is already running");
+ return;
+ }
+ # force a later rebuild of source pages
+ $IkiWiki::forcerebuild{$_->{sourcepage}}=1
+ foreach @feeds;
+
+ # Fork a child process to handle the aggregation.
+ # The parent process will then handle building the
+ # result. This avoids messy code to clear state
+ # accumulated while aggregating.
+ defined(my $pid = fork) or error("Can't fork: $!");
+ if (! $pid) {
+ IkiWiki::loadindex();
+ # Aggregation happens without the main wiki lock
+ # being held. This allows editing pages etc while
+ # aggregation is running.
+ aggregate(@feeds);
+
+ IkiWiki::lockwiki;
+ # Merge changes, since aggregation state may have
+ # changed on disk while the aggregation was happening.
+ mergestate();
+ expire();
+ savestate();
+ IkiWiki::unlockwiki;
+ exit 0;
+ }
+ waitpid($pid,0);
+ if ($?) {
+ error "aggregation failed with code $?";
+ }
+
+ clearstate();
+ unlockaggregate();
+
+ return 1;
+} #}}}
+
+# Pages with extension _aggregated have plain html markup, pass through.
+sub htmlize (@) { #{{{
+ my %params=@_;
+ return $params{content};
+} #}}}
+
+# Used by ikiwiki-transition aggregateinternal.
+sub migrate_to_internal { #{{{
+ if (! lockaggregate()) {
+ error("an aggregation process is currently running");
+ }