feed: compile regexps only once

This avoids some runtime penalties associated with recompiling
a regexp based on a constant local variable.

diff --git a/lib/PublicInbox/Feed.pm b/lib/PublicInbox/Feed.pm
index dd9915324af33995205bb6509cb80dd08df75ff2..3c0ec86d4188d393f8cc734affb0dee5f86775bc 100644 (file)
--- a/lib/PublicInbox/Feed.pm
+++ b/lib/PublicInbox/Feed.pm
@@ -168,14 +168,14 @@ sub each_recent_blob {
                        }
                } elsif ($line =~ /$delmsg/o) {
                        $deleted{$1} = 1;
-               } elsif ($line =~ /^commit (${hex}{7,40})/) {
+               } elsif ($line =~ /^commit (${hex}{7,40})/o) {
                        push @commits, $1;
                }
        }
 
        if ($last) {
                while (my $line = <$log>) {
-                       if ($line =~ /^commit (${hex}{7,40})/) {
+                       if ($line =~ /^commit (${hex}{7,40})/o) {
                                push @commits, $1;
                                last;
                        }