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* [PATCH 2/9] v2writable: preserve timestamps from import
  2020-03-20  8:18  5% ` [PATCH 0/9] preserve time and date of initial commit Eric Wong
@ 2020-03-20  8:18  7%   ` Eric Wong
  0 siblings, 0 replies; 2+ results
From: Eric Wong @ 2020-03-20  8:18 UTC (permalink / raw)
  To: meta

While v2 indexing is triggered immediately after writing the
commit to the git repository, there may be a gap between when
PublicInbox::Import generates a timestamp and when
PublicInbox::SearchIdx sees the message.  So follow the mirror
indexing behavior and take the to-be-indexed (time|date)stamps
directly from the git commit.
---
 lib/PublicInbox/Import.pm     | 12 ++++++++----
 lib/PublicInbox/V2Writable.pm |  2 +-
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/lib/PublicInbox/Import.pm b/lib/PublicInbox/Import.pm
index 68dc0c7e..3853ff2b 100644
--- a/lib/PublicInbox/Import.pm
+++ b/lib/PublicInbox/Import.pm
@@ -274,8 +274,8 @@ sub git_timestamp {
 	"$ts $zone";
 }
 
-sub extract_cmt_info ($) {
-	my ($mime) = @_;
+sub extract_cmt_info ($;$) {
+	my ($mime, $v2w) = @_;
 
 	my $sender = '';
 	my $from = $mime->header('From');
@@ -325,6 +325,10 @@ sub extract_cmt_info ($) {
 	utf8::encode($subject);
 	my $at = git_timestamp(my @at = msg_datestamp($hdr));
 	my $ct = git_timestamp(my @ct = msg_timestamp($hdr));
+	if ($v2w) { # set fallbacks in case message had no date
+		$v2w->{autime} = $at[0];
+		$v2w->{cotime} = $ct[0];
+	}
 	($name, $email, $at, $ct, $subject);
 }
 
@@ -370,9 +374,9 @@ sub clean_tree_v2 ($$$) {
 # returns undef on duplicate
 # returns the :MARK of the most recent commit
 sub add {
-	my ($self, $mime, $check_cb) = @_; # mime = Email::MIME
+	my ($self, $mime, $check_cb, $v2w) = @_; # mime = Email::MIME
 
-	my ($name, $email, $at, $ct, $subject) = extract_cmt_info($mime);
+	my ($name, $email, $at, $ct, $subject) = extract_cmt_info($mime, $v2w);
 	my $path_type = $self->{path_type};
 	my $path;
 	if ($path_type eq '2/38') {
diff --git a/lib/PublicInbox/V2Writable.pm b/lib/PublicInbox/V2Writable.pm
index f1842843..d39a6f89 100644
--- a/lib/PublicInbox/V2Writable.pm
+++ b/lib/PublicInbox/V2Writable.pm
@@ -176,7 +176,7 @@ sub _add {
 	defined $num or return; # duplicate
 	defined $mid0 or die "BUG: $mid0 undefined\n";
 	my $im = $self->importer;
-	my $cmt = $im->add($mime);
+	my $cmt = $im->add($mime, undef, $self); # sets $self->{(au|co)time}
 	$cmt = $im->get_mark($cmt);
 	$self->{last_commit}->[$self->{epoch_max}] = $cmt;
 

^ permalink raw reply related	[relevance 7%]

* [PATCH 0/9] preserve time and date of initial commit
  @ 2020-03-20  8:18  5% ` Eric Wong
  2020-03-20  8:18  7%   ` [PATCH 2/9] v2writable: preserve timestamps from import Eric Wong
  0 siblings, 1 reply; 2+ results
From: Eric Wong @ 2020-03-20  8:18 UTC (permalink / raw)
  To: meta

For messages lacking Date and/or Received headers, search
queries for "d:YYYYMMDD..YYYYMMDD" ranges can be unreliable in
mirrors, as can the $INBOX_URL/?t=$TIMESTAMP query which
only hits SQLite.

Yes, this ended up being a lot of work to deal with corner case
messages (probably most of which are spam), but there's also a
lot of internal cleanups which made the end result easier to
follow, I think...

The main fix is actually in 1/9, but it's gross.

Patch 2/9 fixes a small window where a race can happen and
cause searches to be off by a minute.

Patches 3-8 cleanup the mess left in 1 and 2,

Finally, patch 9 fixes the corner-case-of-corner-cases for
dealing with multi-MID messages which require a one-off queue to
store the git commit/author times instead of overloading msgmap.

Eric Wong (9):
  index: use git commit times on missing Date/Received
  v2writable: preserve timestamps from import if generated
  rename PublicInbox::SearchMsg => PublicInbox::Smsg
  smsg: to_doc_data: use existing fields
  overidx: parse_references: less error-prone args
  *idx: pass $smsg in more places instead of many args
  v2: pass smsg in more places
  *idx: pass smsg in even more places
  v2: SDBM-based multi Message-ID queue

 Documentation/mknews.perl                   |  4 +-
 Documentation/technical/data_structures.txt |  4 +-
 MANIFEST                                    |  4 +-
 lib/PublicInbox/ExtMsg.pm                   |  3 +-
 lib/PublicInbox/Feed.pm                     |  4 +-
 lib/PublicInbox/Import.pm                   | 19 +++--
 lib/PublicInbox/Inbox.pm                    |  2 +-
 lib/PublicInbox/Mbox.pm                     |  4 +-
 lib/PublicInbox/MsgTime.pm                  | 12 +--
 lib/PublicInbox/MultiMidQueue.pm            | 57 +++++++++++++
 lib/PublicInbox/NNTP.pm                     | 14 ++--
 lib/PublicInbox/Over.pm                     |  8 +-
 lib/PublicInbox/OverIdx.pm                  | 30 +++----
 lib/PublicInbox/Search.pm                   |  8 +-
 lib/PublicInbox/SearchIdx.pm                | 68 ++++++++++-----
 lib/PublicInbox/SearchIdxShard.pm           | 26 ++++--
 lib/PublicInbox/SearchView.pm               |  8 +-
 lib/PublicInbox/{SearchMsg.pm => Smsg.pm}   | 19 +++--
 lib/PublicInbox/SolverGit.pm                |  2 +-
 lib/PublicInbox/V2Writable.pm               | 84 ++++++++++++-------
 lib/PublicInbox/View.pm                     |  2 +-
 t/import.t                                  | 14 ++--
 t/index-git-times.t                         | 93 +++++++++++++++++++++
 t/multi-mid.t                               | 27 +++++-
 t/search-thr-index.t                        | 17 +++-
 t/thread-cycle.t                            |  2 +-
 26 files changed, 386 insertions(+), 149 deletions(-)
 create mode 100644 lib/PublicInbox/MultiMidQueue.pm
 rename lib/PublicInbox/{SearchMsg.pm => Smsg.pm} (92%)
 create mode 100644 t/index-git-times.t

^ permalink raw reply	[relevance 5%]

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2020-03-05  5:13     [PATCH] index: use git commit times on missing Date/Received Eric Wong
2020-03-20  8:18  5% ` [PATCH 0/9] preserve time and date of initial commit Eric Wong
2020-03-20  8:18  7%   ` [PATCH 2/9] v2writable: preserve timestamps from import Eric Wong

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