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authorEric Wong <e@80x24.org>2015-09-04 02:18:06 +0000
committerEric Wong <e@80x24.org>2015-09-04 02:19:00 +0000
commit8b01b9c9c6cdd42af1e1b968549452b2d727ba52 (patch)
tree6a1e7e9076c42e1d2f93da9203b4a09a8e24e1ee /lib/PublicInbox/Feed.pm
parent93bb76d2c36ba4b9df6c8a97597cdbd7215378a6 (diff)
downloadpublic-inbox-8b01b9c9c6cdd42af1e1b968549452b2d727ba52.tar.gz
This lets us merge topics with different subjects with a common parent
(common in "[PATCH 0/X]" threads).  This also lets us avoid forking for
the HTML index page, too.
Diffstat (limited to 'lib/PublicInbox/Feed.pm')
-rw-r--r--lib/PublicInbox/Feed.pm124
1 files changed, 34 insertions, 90 deletions
diff --git a/lib/PublicInbox/Feed.pm b/lib/PublicInbox/Feed.pm
index 75fecf5b..8fcb8d82 100644
--- a/lib/PublicInbox/Feed.pm
+++ b/lib/PublicInbox/Feed.pm
@@ -123,6 +123,8 @@ sub emit_html_index {
         my $title = $feed_opts->{description} || '';
         $title = PublicInbox::Hval->new_oneline($title)->as_html;
         my $atom_url = $feed_opts->{atomurl};
+        my ($footer, $param, $last, $srch);
+        my $state = { ctx => $ctx, seen => {}, anchor_idx => 0 };
 
         $fh->write("<html><head><title>$title</title>" .
                    "<link\nrel=alternate\ntitle=\"Atom feed\"\n".
@@ -130,61 +132,60 @@ sub emit_html_index {
                    '</head><body>' . PublicInbox::View::PRE_WRAP .
                    "<b>$title</b> (<a\nhref=\"$atom_url\">Atom feed</a>)\n");
 
-        my $state;
-        my $git = PublicInbox::GitCatFile->new($ctx->{git_dir});
-        my $topics;
-        my $srch = $ctx->{srch};
-        $srch and $topics = [ [], {} ];
-        my (undef, $last) = each_recent_blob($ctx, sub {
-                my ($path, $commit, $ts, $u, $subj) = @_;
-                $state ||= {
-                        ctx => $ctx,
-                        seen => {},
-                        first_commit => $commit,
-                        anchor_idx => 0,
-                };
-
-                if ($srch) {
-                        add_topic($git, $srch, $topics, $path, $ts, $u, $subj);
-                } else {
-                        my $mime = do_cat_mail($git, $path) or return 0;
-                        PublicInbox::View::index_entry($fh, $mime, 0, $state);
-                        1;
-                }
-        });
-        Email::Address->purge_cache;
-        $git = undef; # destroy pipes.
-
-        my $footer = nav_footer($ctx->{cgi}, $last, $feed_opts, $state);
+        # if the 'r' query parameter is given, it is a legacy permalink
+        # which we must continue supporting:
+        my $cgi = $ctx->{cgi};
+        if ($cgi && !$cgi->param('r') && ($srch = $ctx->{srch})) {
+                $state->{srch} = $srch;
+                $last = PublicInbox::View::emit_index_topics($state, $fh);
+                $param = 'o';
+        } else {
+                $last = emit_index_nosrch($ctx, $state, $fh);
+                $param = 'r';
+        }
+        $footer = nav_footer($cgi, $last, $feed_opts, $state, $param);
         if ($footer) {
                 my $list_footer = $ctx->{footer};
                 $footer .= "\n\n" . $list_footer if $list_footer;
                 $footer = "<hr /><pre>$footer</pre>";
         }
-        $fh->write(dump_topics($topics)) if $topics;
         $fh->write("$footer</body></html>");
         $fh->close;
 }
 
+sub emit_index_nosrch {
+        my ($ctx, $state, $fh) = @_;
+        my $git = PublicInbox::GitCatFile->new($ctx->{git_dir});
+        my (undef, $last) = each_recent_blob($ctx, sub {
+                my ($path, $commit, $ts, $u, $subj) = @_;
+                $state->{first} ||= $commit;
+
+                my $mime = do_cat_mail($git, $path) or return 0;
+                PublicInbox::View::index_entry($fh, $mime, 0, $state);
+                1;
+        });
+        Email::Address->purge_cache;
+        $last;
+}
+
 sub nav_footer {
-        my ($cgi, $last, $feed_opts, $state) = @_;
+        my ($cgi, $last, $feed_opts, $state, $param) = @_;
         $cgi or return '';
-        my $old_r = $cgi->param('r');
+        my $old_r = $cgi->param($param);
         my $head = '    ';
         my $next = '    ';
-        my $first = $state->{first_commit};
+        my $first = $state->{first};
         my $anchor = $state->{anchor_idx};
 
         if ($last) {
-                $next = qq!<a\nhref="?r=$last">next</a>!;
+                $next = qq!<a\nhref="?$param=$last">next</a>!;
         }
         if ($old_r) {
                 $head = $cgi->path_info;
                 $head = qq!<a\nhref="$head">head</a>!;
         }
         my $atom = "<a\nhref=\"$feed_opts->{atomurl}\">atom</a>";
-        my $permalink = "<a\nhref=\"?r=$first\">permalink</a>";
-        "<a\nname=\"s$anchor\">page:</a> $next $head $atom $permalink";
+        "<a\nname=\"s$anchor\">page:</a> $next $head $atom";
 }
 
 sub each_recent_blob {
@@ -369,61 +370,4 @@ sub do_cat_mail {
         $@ ? undef : $mime;
 }
 
-# accumulate recent topics if search is supported
-sub add_topic {
-        my ($git, $srch, $topics, $path, $ts, $u, $subj) = @_;
-        my ($order, $subjs) = @$topics;
-        my $header_obj;
-
-        # legacy ssoma did not set commit titles based on Subject
-        $subj = $enc_utf8->decode($subj);
-        if ($subj eq 'mda') {
-                my $mime = do_cat_mail($git, $path) or return 0;
-                $header_obj = $mime->header_obj;
-                $subj = mime_header($header_obj, 'Subject');
-        }
-
-        my $topic = $subj = $srch->subject_normalized($subj);
-
-        # kill "[PATCH v2]" etc. for summarization
-        $topic =~ s/\A\s*\[[^\]]+\]\s*//g;
-
-        if (++$subjs->{$topic} == 1) {
-                unless ($header_obj) {
-                        my $mime = do_cat_mail($git, $path) or return 0;
-                        $header_obj = $mime->header_obj;
-                }
-                my $mid = mid_clean($header_obj->header('Message-ID'));
-                $u = $enc_utf8->decode($u);
-                push @$order, [ $mid, $ts, $u, $subj, $topic ];
-                return 1;
-        }
-        0; # old topic, continue going
-}
-
-sub dump_topics {
-        my ($topics) = @_;
-        my ($order, $subjs) = @$topics;
-        my $dst = '';
-        $dst .= "\n[No recent topics]" unless (scalar @$order);
-        while (defined(my $info = shift @$order)) {
-                my ($mid, $ts, $u, $subj, $topic) = @$info;
-                my $n = delete $subjs->{$topic};
-                $mid = PublicInbox::Hval->new($mid)->as_href;
-                $subj = PublicInbox::Hval->new($subj)->as_html;
-                $u = PublicInbox::Hval->new($u)->as_html;
-                $dst .= "\n<a\nhref=\"$mid/t/#u\"><b>$subj</b></a>\n- ";
-                $ts = strftime('%Y-%m-%d %H:%M', gmtime($ts));
-                if ($n == 1) {
-                        $dst .= "created by $u @ $ts UTC\n"
-                } else {
-                        # $n isn't the total number of posts on the topic,
-                        # just the number of posts in the current "git log"
-                        # window, so leave it unlabeled
-                        $dst .= "updated by $u @ $ts UTC ($n)\n"
-                }
-        }
-        $dst .= '</pre>'
-}
-
 1;