rework influence calculation

Thought of a cleaner way to accumulate all influences in
pagespec_match_list, using the pagespec_match result object as an
accumulator.

(This also accumulates all influences from failed matches, rather than just
one failed match. I'm not sure if the old method was correct.)

diff --git a/IkiWiki.pm b/IkiWiki.pm
index 232d3e77b6a240860adfb38447dd92586a5ce22e..c67a1e138c7a8657922a932495a1d4ab928918f2 100644 (file)
--- a/IkiWiki.pm
+++ b/IkiWiki.pm
@@ -2032,41 +2032,25 @@ sub pagespec_match_list ($$;@) {
        my @matches;
        my $firstfail;
        my $count=0;
+       my $accum=IkiWiki::SuccessReason->new();
        foreach my $p (@candidates) {
                my $r=$sub->($p, %params, location => $page);
+               error(sprintf(gettext("cannot match pages: %s"), $r))
+                       if $r->isa("IkiWiki::ErrorReason");
+               $accum |= $r;
                if ($r) {
-                       push @matches, [$p, $r];
+                       push @matches, $p;
                        last if defined $num && ++$count == $num;
                }
-               elsif (! defined $firstfail) {
-                       $firstfail=$r;
-               }
-       }
-
-       my @ret;
-       if (@matches) {
-               # Add all influences from successful matches.
-               foreach my $m (@matches) {
-                       push @ret, $m->[0];
-                       my %i=$m->[1]->influences;
-                       foreach my $i (keys %i) {
-                               $depends_simple{$page}{lc $i} |= $i{$i};
-                       }
-               }
        }
-       elsif (defined $firstfail) {
-               # Add influences from one failure. (Which one should not
-               # matter; all should have the same influences.)
-               my %i=$firstfail->influences;
-               foreach my $i (keys %i) {
-                       $depends_simple{$page}{lc $i} |= $i{$i};
-               }
 
-               error(sprintf(gettext("cannot match pages: %s"), $firstfail))
-                       if $firstfail->isa("IkiWiki::ErrorReason");
+       # Add simple dependencies for accumulated influences.
+       my %i=$accum->influences;
+       foreach my $i (keys %i) {
+               $depends_simple{$page}{lc $i} |= $i{$i};
        }
 
-       return @ret;
+       return @matches;
 }
 
 sub pagespec_valid ($) {