msgtime: quiet warnings we can do nothing about

In retrospect, warning about bad times and dates is pointless
since there's nothing actionable about it.  We'll also drop an
unnecessary capture in msg_received_at while we're at it and
favor using $eml since as the input variable name to match
current usage.

The note to install Date::Parse as a fallback remains since it
can be helpful in some cases (and is actionable by the user).

1 files changed, 11 insertions, 22 deletions

diff --git a/lib/PublicInbox/MsgTime.pm b/lib/PublicInbox/MsgTime.pm
index 5ee087fd..58b0deae 100644
--- a/lib/PublicInbox/MsgTime.pm
+++ b/lib/PublicInbox/MsgTime.pm
@@ -1,11 +1,11 @@
-# Copyright (C) 2018-2021 all contributors <meta@public-inbox.org>
+# Copyright (C) all contributors <meta@public-inbox.org>
 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
 
 # Various date/time-related functions
 package PublicInbox::MsgTime;
+use v5.10.1; # unicode_strings in 5.12 may not work...
 use strict;
-use warnings;
-use base qw(Exporter);
+use parent qw(Exporter);
 our @EXPORT_OK = qw(msg_timestamp msg_datestamp);
 use Time::Local qw(timegm);
 my @MoY = qw(january february march april may june
@@ -125,10 +125,7 @@ sub str2date_zone ($) {
         # but we want to keep "git fsck" happy.
         # "-1200" is the furthest westermost zone offset,
         # but git fast-import is liberal so we use "-1400"
-        if ($zone >= 1400 || $zone <= -1400) {
-                warn "bogus TZ offset: $zone, ignoring and assuming +0000\n";
-                $zone = '+0000';
-        }
+        $zone = '+0000' if $zone >= 1400 || $zone <= -1400;
         [$ts, $zone];
 }
 
@@ -138,30 +135,22 @@ sub time_response ($) {
 }
 
 sub msg_received_at ($) {
-        my ($hdr) = @_; # PublicInbox::Eml
-        my @recvd = $hdr->header_raw('Received');
-        my ($ts);
-        foreach my $r (@recvd) {
+        my ($eml) = @_;
+        my $ts;
+        for my $r ($eml->header_raw('Received')) {
                 $r =~ /\s*([0-9]+\s+[a-zA-Z]+\s+[0-9]{2,4}\s+
                         [0-9]+[^0-9][0-9]+(?:[^0-9][0-9]+)
-                        \s+([\+\-][0-9]+))/sx or next;
+                        \s+(?:[\+\-][0-9]+))/sx or next;
                 $ts = eval { str2date_zone($1) } and return $ts;
-                my $mid = $hdr->header_raw('Message-ID');
-                warn "no date in $mid Received: $r\n";
         }
         undef;
 }
 
 sub msg_date_only ($) {
-        my ($hdr) = @_; # PublicInbox::Eml
-        my @date = $hdr->header_raw('Date');
-        my ($ts);
-        foreach my $d (@date) {
+        my ($eml) = @_;
+        my $ts;
+        for my $d ($eml->header_raw('Date')) {
                 $ts = eval { str2date_zone($d) } and return $ts;
-                if ($@) {
-                        my $mid = $hdr->header_raw('Message-ID');
-                        warn "bad Date: $d in $mid: $@\n";
-                }
         }
         undef;
 }