* [PATCH] www: various style changes and comment updates
@ 2016-04-02 22:32 Eric Wong
0 siblings, 0 replies; only message in thread
From: Eric Wong @ 2016-04-02 22:32 UTC (permalink / raw)
To: meta
Reduce stack depth of arguments and rely more on state hashref
to store response state. We may end up shoving everything
in ctx eventually.
---
lib/PublicInbox/Feed.pm | 14 ++---
lib/PublicInbox/SearchView.pm | 22 ++++----
lib/PublicInbox/View.pm | 117 ++++++++++++++++++++----------------------
3 files changed, 73 insertions(+), 80 deletions(-)
diff --git a/lib/PublicInbox/Feed.pm b/lib/PublicInbox/Feed.pm
index ec6925d..54fa6e5 100644
--- a/lib/PublicInbox/Feed.pm
+++ b/lib/PublicInbox/Feed.pm
@@ -111,15 +111,15 @@ sub emit_atom_thread {
}
sub emit_html_index {
- my ($cb, $ctx) = @_;
- my $fh = $cb->([200,['Content-Type'=>'text/html; charset=UTF-8']]);
+ my ($res, $ctx) = @_;
+ my $fh = $res->([200,['Content-Type'=>'text/html; charset=UTF-8']]);
my $max = $ctx->{max} || MAX_PER_PAGE;
my $feed_opts = get_feedopts($ctx);
my $title = ascii_html($feed_opts->{description} || '');
my ($footer, $param, $last);
- my $state = { ctx => $ctx, seen => {}, anchor_idx => 0 };
+ my $state = { ctx => $ctx, seen => {}, anchor_idx => 0, fh => $fh };
my $srch = $ctx->{srch};
my $top = "<b>$title</b> (<a\nhref=\"new.atom\">Atom feed</a>)";
@@ -144,10 +144,10 @@ sub emit_html_index {
my $cgi = $ctx->{cgi};
if ($cgi && !$cgi->param('r') && $srch) {
$state->{srch} = $srch;
- $last = PublicInbox::View::emit_index_topics($state, $fh);
+ $last = PublicInbox::View::emit_index_topics($state);
$param = 'o';
} else {
- $last = emit_index_nosrch($ctx, $state, $fh);
+ $last = emit_index_nosrch($ctx, $state);
$param = 'r';
}
$footer = nav_footer($cgi, $last, $feed_opts, $state, $param);
@@ -161,14 +161,14 @@ sub emit_html_index {
}
sub emit_index_nosrch {
- my ($ctx, $state, $fh) = @_;
+ my ($ctx, $state) = @_;
my $git = $ctx->{git} ||= PublicInbox::Git->new($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, $state);
+ PublicInbox::View::index_entry($mime, 0, $state);
1;
});
Email::Address->purge_cache;
diff --git a/lib/PublicInbox/SearchView.pm b/lib/PublicInbox/SearchView.pm
index 8283c1a..ab0ff19 100644
--- a/lib/PublicInbox/SearchView.pm
+++ b/lib/PublicInbox/SearchView.pm
@@ -174,11 +174,12 @@ sub tdump {
ctx => $ctx,
anchor_idx => 0,
pct => \%pct,
- cur_level => 0
+ cur_level => 0,
+ fh => $fh,
};
$ctx->{searchview} = 1;
- tdump_ent($fh, $git, $state, $_, 0) for $th->rootset;
- PublicInbox::View::thread_adj_level($fh, $state, 0);
+ tdump_ent($git, $state, $_, 0) for $th->rootset;
+ PublicInbox::View::thread_adj_level($state, 0);
Email::Address->purge_cache;
$fh->write(search_nav_bot($mset, $q). "\n\n" .
@@ -188,7 +189,7 @@ sub tdump {
}
sub tdump_ent {
- my ($fh, $git, $state, $node, $level) = @_;
+ my ($git, $state, $node, $level) = @_;
return unless $node;
my $mime = $node->message;
@@ -201,16 +202,15 @@ sub tdump_ent {
};
}
if ($mime) {
- my $end =
- PublicInbox::View::thread_adj_level($fh, $state, $level);
- PublicInbox::View::index_entry($fh, $mime, $level, $state);
- $fh->write($end) if $end;
+ my $end = PublicInbox::View::thread_adj_level($state, $level);
+ PublicInbox::View::index_entry($mime, $level, $state);
+ $state->{fh}->write($end) if $end;
} else {
my $mid = $node->messageid;
- PublicInbox::View::ghost_flush($fh, $state, '', $mid, $level);
+ PublicInbox::View::ghost_flush($state, '', $mid, $level);
}
- tdump_ent($fh, $git, $state, $node->child, $level + 1);
- tdump_ent($fh, $git, $state, $node->next, $level);
+ tdump_ent($git, $state, $node->child, $level + 1);
+ tdump_ent($git, $state, $node->next, $level);
}
sub foot {
diff --git a/lib/PublicInbox/View.pm b/lib/PublicInbox/View.pm
index 4058bee..a4b580d 100644
--- a/lib/PublicInbox/View.pm
+++ b/lib/PublicInbox/View.pm
@@ -27,11 +27,7 @@ my $enc_utf8 = find_encoding('UTF-8');
# public functions:
sub msg_html {
my ($ctx, $mime, $full_pfx, $footer) = @_;
- if (defined $footer) {
- $footer = "\n" . $footer;
- } else {
- $footer = '';
- }
+ $footer = defined($footer) ? "\n$footer" : '';
my $hdr = $mime->header_obj;
headers_to_html_header($hdr, $full_pfx, $ctx) .
multipart_text_as_html($mime, $full_pfx) .
@@ -102,7 +98,7 @@ sub in_reply_to {
# this is already inside a <pre>
sub index_entry {
- my ($fh, $mime, $level, $state) = @_;
+ my ($mime, $level, $state) = @_;
my $midx = $state->{anchor_idx}++;
my $ctx = $state->{ctx};
my $srch = $ctx->{srch};
@@ -146,6 +142,7 @@ sub index_entry {
if ($prev >= 0) {
$rv .= "/<a\nhref=\"#s$prev\">prev</a>";
}
+ my $fh = $state->{fh};
$fh->write($rv .= "\n\n");
my ($fhref, $more_ref);
@@ -192,22 +189,22 @@ sub index_entry {
sub thread_html {
my ($ctx, $foot, $srch) = @_;
+ # $_[0] in sub is the Plack callback
sub { emit_thread_html($_[0], $ctx, $foot, $srch) }
}
# only private functions below.
sub emit_thread_html {
- my ($cb, $ctx, $foot, $srch) = @_;
+ my ($res, $ctx, $foot, $srch) = @_;
my $mid = $ctx->{mid};
- my $res = $srch->get_thread($mid);
- my $msgs = load_results($res);
+ my $msgs = load_results($srch->get_thread($mid));
my $nr = scalar @$msgs;
- return missing_thread($cb, $ctx) if $nr == 0;
+ return missing_thread($res, $ctx) if $nr == 0;
my $flat = $ctx->{flat};
- my $orig_cb = $cb;
my $seen = {};
my $state = {
+ res => $res,
ctx => $ctx,
seen => $seen,
root_anchor => anchor_for($mid),
@@ -216,23 +213,23 @@ sub emit_thread_html {
};
require PublicInbox::Git;
- my $git = $ctx->{git} ||= PublicInbox::Git->new($ctx->{git_dir});
+ $ctx->{git} ||= PublicInbox::Git->new($ctx->{git_dir});
if ($flat) {
pre_anchor_entry($seen, $_) for (@$msgs);
- __thread_entry(\$cb, $git, $state, $_, 0) for (@$msgs);
+ __thread_entry($state, $_, 0) for (@$msgs);
} else {
my $th = thread_results($msgs);
- thread_entry(\$cb, $git, $state, $_, 0) for $th->rootset;
+ thread_entry($state, $_, 0) for $th->rootset;
if (my $max = $state->{cur_level}) {
- $cb->write(('</ul></li>' x ($max - 1)) . '</ul>');
+ $state->{fh}->write(
+ ('</ul></li>' x ($max - 1)) . '</ul>');
}
}
- $git = undef;
Email::Address->purge_cache;
# there could be a race due to a message being deleted in git
# but still being in the Xapian index:
- return missing_thread($cb, $ctx) if ($orig_cb eq $cb);
+ my $fh = delete $state->{fh} or return missing_thread($res, $ctx);
my $final_anchor = $state->{anchor_idx};
my $next = "<a\nid=s$final_anchor>";
@@ -241,9 +238,9 @@ sub emit_thread_html {
$next .= "\ndownload thread: ";
$next .= "<a\nhref=\"../t.mbox.gz\">mbox.gz</a>";
$next .= " / follow: <a\nhref=\"../t.atom\">Atom feed</a>";
- $cb->write('<hr /><pre>' . $next . "\n\n".
+ $fh->write('<hr /><pre>' . $next . "\n\n".
$foot . '</pre></body></html>');
- $cb->close;
+ $fh->close;
}
sub index_walk {
@@ -450,8 +447,8 @@ sub thread_inline {
my ($dst, $ctx, $hdr, $upfx) = @_;
my $srch = $ctx->{srch};
my $mid = mid_clean($hdr->header_raw('Message-ID'));
- my $res = $srch->get_thread($mid);
- my $nr = $res->{total};
+ my $sres = $srch->get_thread($mid);
+ my $nr = $sres->{total};
my $expand = "<a\nhref=\"${upfx}t/#u\">expand</a> " .
"/ <a\nhref=\"${upfx}t.mbox.gz\">mbox.gz</a>";
@@ -485,7 +482,7 @@ sub thread_inline {
prev_attr => '',
prev_level => 0,
};
- for (thread_results(load_results($res))->rootset) {
+ for (thread_results(load_results($sres))->rootset) {
inline_dump($dst, $state, $upfx, $_, 0);
}
$$dst .= "<a\nid=b></a>"; # anchor for body start
@@ -620,11 +617,13 @@ sub anchor_for {
}
sub thread_html_head {
- my ($cb, $header, $state) = @_;
- $$cb = $$cb->([200, ['Content-Type'=> 'text/html; charset=UTF-8']]);
+ my ($hdr, $state) = @_;
+ my $res = delete $state->{res} or die "BUG: no Plack callback in {res}";
+ my $fh = $res->([200, ['Content-Type'=> 'text/html; charset=UTF-8']]);
+ $state->{fh} = $fh;
- my $s = ascii_html($header->header('Subject'));
- $$cb->write("<html><head><title>$s</title>".
+ my $s = ascii_html($hdr->header('Subject'));
+ $fh->write("<html><head><title>$s</title>".
qq{<link\nrel=alternate\ntitle="Atom feed"\n} .
qq!href="../t.atom"\ntype="application/atom+xml"/>! .
PublicInbox::Hval::STYLE .
@@ -649,7 +648,7 @@ sub ghost_parent {
}
sub thread_adj_level {
- my ($fh, $state, $level) = @_;
+ my ($state, $level) = @_;
my $max = $state->{cur_level};
if ($level <= 0) {
@@ -657,52 +656,48 @@ sub thread_adj_level {
# reset existing lists
my $x = $max > 1 ? ('</ul></li>' x ($max - 1)) : '';
- $fh->write($x . '</ul>');
+ $state->{fh}->write($x . '</ul>');
$state->{cur_level} = 0;
return '';
}
if ($level == $max) { # continue existing list
- $fh->write('<li>');
+ $state->{fh}->write('<li>');
} elsif ($level < $max) {
my $x = $max > 1 ? ('</ul></li>' x ($max - $level)) : '';
- $fh->write($x .= '<li>');
+ $state->{fh}->write($x .= '<li>');
$state->{cur_level} = $level;
} else { # ($level > $max) # start a new level
$state->{cur_level} = $level;
- $fh->write(($max ? '<li>' : '') . '<ul><li>');
+ $state->{fh}->write(($max ? '<li>' : '') . '<ul><li>');
}
'</li>';
}
sub ghost_flush {
- my ($fh, $state, $upfx, $mid, $level) = @_;
-
- my $end = thread_adj_level($fh, $state, $level);
- $fh->write('<pre>'. ghost_parent($upfx, $mid) . '</pre>' . $end);
+ my ($state, $upfx, $mid, $level) = @_;
+ my $end = '<pre>'. ghost_parent($upfx, $mid) . '</pre>';
+ $state->{fh}->write($end .= thread_adj_level($state, $level));
}
sub __thread_entry {
- my ($cb, $git, $state, $mime, $level) = @_;
+ my ($state, $mime, $level) = @_;
# lazy load the full message from mini_mime:
$mime = eval {
my $path = mid2path(mid_clean(mid_mime($mime)));
- Email::MIME->new($git->cat_file('HEAD:'.$path));
+ Email::MIME->new($state->{ctx}->{git}->cat_file('HEAD:'.$path));
} or return;
- if ($state->{anchor_idx} == 0) {
- thread_html_head($cb, $mime, $state, $level);
- }
- my $fh = $$cb;
+ thread_html_head($mime, $state) if $state->{anchor_idx} == 0;
if (my $ghost = delete $state->{ghost}) {
# n.b. ghost messages may only be parents, not children
foreach my $g (@$ghost) {
- ghost_flush($fh, $state, '../../', @$g);
+ ghost_flush($state, '../../', @$g);
}
}
- my $end = thread_adj_level($fh, $state, $level);
- index_entry($fh, $mime, $level, $state);
- $fh->write($end) if $end;
+ my $end = thread_adj_level($state, $level);
+ index_entry($mime, $level, $state);
+ $state->{fh}->write($end) if $end;
1;
}
@@ -719,24 +714,24 @@ sub __ghost_prepare {
}
sub thread_entry {
- my ($cb, $git, $state, $node, $level) = @_;
+ my ($state, $node, $level) = @_;
return unless $node;
if (my $mime = $node->message) {
- unless (__thread_entry($cb, $git, $state, $mime, $level)) {
+ unless (__thread_entry($state, $mime, $level)) {
__ghost_prepare($state, $node, $level);
}
} else {
__ghost_prepare($state, $node, $level);
}
- thread_entry($cb, $git, $state, $node->child, $level + 1);
- thread_entry($cb, $git, $state, $node->next, $level);
+ thread_entry($state, $node->child, $level + 1);
+ thread_entry($state, $node->next, $level);
}
sub load_results {
- my ($res) = @_;
+ my ($sres) = @_;
- [ map { $_->mini_mime } @{delete $res->{msgs}} ];
+ [ map { $_->mini_mime } @{delete $sres->{msgs}} ];
}
sub msg_timestamp {
@@ -757,10 +752,10 @@ sub thread_results {
}
sub missing_thread {
- my ($cb, $ctx) = @_;
+ my ($res, $ctx) = @_;
require PublicInbox::ExtMsg;
- $cb->(PublicInbox::ExtMsg::ext_msg($ctx))
+ $res->(PublicInbox::ExtMsg::ext_msg($ctx))
}
sub _msg_date {
@@ -913,13 +908,11 @@ sub dump_topics {
my $dot = $level == 0 ? '' : '` ';
$dst .= "$nl$pfx$dot<a\nhref=\"$mid/t/#u\"><b>$subj</b></a>\n";
- my $attr;
$ts = fmt_ts($ts);
- $attr = " $ts UTC";
+ my $attr = " $ts UTC";
# $n isn't the total number of posts on the topic,
- # just the number of posts in the current results
- # window, so leave it unlabeled
+ # just the number of posts in the current results window
$n = $n == 1 ? '' : " ($n+ messages)";
if ($level == 0 || $attr ne $prev_attr) {
@@ -934,7 +927,7 @@ sub dump_topics {
}
sub emit_index_topics {
- my ($state, $fh) = @_;
+ my ($state) = @_;
my $off = $state->{ctx}->{cgi}->param('o');
$off = 0 unless defined $off;
$state->{order} = [];
@@ -943,16 +936,16 @@ sub emit_index_topics {
my $max = 25;
my %opts = ( offset => int $off, limit => $max * 4 );
while (scalar @{$state->{order}} < $max) {
- my $res = $state->{srch}->query('', \%opts);
- my $nr = scalar @{$res->{msgs}} or last;
+ my $sres = $state->{srch}->query('', \%opts);
+ my $nr = scalar @{$sres->{msgs}} or last;
- for (rsort_ts(thread_results(load_results($res), 1)->rootset)) {
+ for (rsort_ts(thread_results(load_results($sres), 1)->rootset)){
add_topic($state, $_, 0);
}
$opts{offset} += $nr;
}
- $fh->write(dump_topics($state));
+ $state->{fh}->write(dump_topics($state));
$opts{offset};
}
--
EW
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2016-04-02 22:32 [PATCH] www: various style changes and comment updates Eric Wong
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