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From: Eric Wong <e@80x24.org>
To: meta@public-inbox.org
Cc: Eric Wong <e@80x24.org>
Subject: [PATCH] feed: extract subroutines for threading
Date: Mon, 20 Jul 2015 21:53:14 +0000	[thread overview]
Message-ID: <1437429194-8111-1-git-send-email-e@80x24.org> (raw)

We'll be using this in the future for displaying per-thread
views.
---
 lib/PublicInbox/Feed.pm | 49 +++++++++++++++++++++++++++++++------------------
 1 file changed, 31 insertions(+), 18 deletions(-)

diff --git a/lib/PublicInbox/Feed.pm b/lib/PublicInbox/Feed.pm
index 3c0ec86..f7c2f32 100644
--- a/lib/PublicInbox/Feed.pm
+++ b/lib/PublicInbox/Feed.pm
@@ -61,13 +61,7 @@ sub generate_html_index {
 	my $git_dir = $args->{git_dir};
 	my $git = PublicInbox::GitCatFile->new($git_dir);
 	my ($first, $last) = each_recent_blob($args, sub {
-		my $mime = do_cat_mail($git, $_[0]) or return 0;
-
-		my $t = eval { str2time($mime->header('Date')) };
-		defined($t) or $t = 0;
-		$mime->header_set('X-PI-Date', $t);
-		push @messages, $mime;
-		1;
+		mime_load_for_sort($git, $_[0], \@messages);
 	});
 	$git = undef; # destroy pipes.
 
@@ -79,20 +73,11 @@ sub generate_html_index {
 		'</head><body>' . PRE_WRAP;
 
 	# sort child messages in chronological order
-	$th->order(sub {
-		sort {
-			$a->topmost->message->header('X-PI-Date') <=>
-			$b->topmost->message->header('X-PI-Date')
-		} @_;
-	});
+	$th->order(sub { mime_sort_children(@_) });
 
 	# except we sort top-level messages reverse chronologically
 	my $state = [ time, {}, $first, 0 ];
-	for (sort { (eval { $b->message->header('X-PI-Date') } || 0) <=>
-		    (eval { $a->message->header('X-PI-Date') } || 0)
-		  } $th->rootset) {
-		dump_msg($_, 0, \$html, $state);
-	}
+	for (mime_sort_roots($th)) { dump_msg($_, 0, \$html, $state) }
 	Email::Address->purge_cache;
 
 	my $footer = nav_footer($args->{cgi}, $last, $feed_opts, $state);
@@ -308,4 +293,32 @@ sub do_cat_mail {
 	$@ ? undef : $mime;
 }
 
+sub mime_load_for_sort {
+	my ($git, $path, $messages) = @_;
+	my $mime = do_cat_mail($git, $path) or return 0;
+
+	my $t = eval { str2time($mime->header('Date')) };
+	defined($t) or $t = 0;
+	$mime->header_set('X-PI-Date', $t);
+	push @$messages, $mime;
+	1;
+}
+
+# children are chronological
+sub mime_sort_children {
+	sort {
+		$a->topmost->message->header('X-PI-Date') <=>
+		$b->topmost->message->header('X-PI-Date')
+	} @_;
+}
+
+# parents are reverse chronological
+sub mime_sort_roots {
+	my ($th) = @_;
+	sort {
+		(eval { $b->message->header('X-PI-Date') } || 0) <=>
+		(eval { $a->message->header('X-PI-Date') } || 0)
+	} $th->rootset;
+}
+
 1;
-- 
EW


                 reply	other threads:[~2015-07-20 21:53 UTC|newest]

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