Merge branch 'learn'

* learn:
  doc: add public-inbox-learn(1) manpage
  mda: support multiple List-ID matches
  mda: prepare for multiple destinations
  inboxwritable: add assert_usable_dir sub
  mda: skip MIME parsing if spam
  mda: hoist out mda_filter_adjust
  filter/base: remove MAX_MID_SIZE constant
  mda: hoist out List-ID handling and reuse in -learn
  learn: hoist out remove_or_add subroutine
  learn: GIT_COMMITTER_<NAME|EMAIL> may be "" or "0"
  learn: update usage statement
  learn: only map recipient list on "ham" or "rm"
  learn: support multiple To/Cc headers

1 files changed, 21 insertions, 0 deletions

diff --git a/lib/PublicInbox/MDA.pm b/lib/PublicInbox/MDA.pm
index 9cafda13..b0dfac45 100644
--- a/lib/PublicInbox/MDA.pm
+++ b/lib/PublicInbox/MDA.pm
@@ -83,4 +83,25 @@ sub set_list_headers {
         }
 }
 
+sub inboxes_for_list_id ($$) {
+        my ($klass, $config, $simple) = @_;
+
+        # newer Email::Simple allows header_raw, as does Email::MIME:
+        my @list_ids = $simple->can('header_raw') ?
+                        $simple->header_raw('List-Id') :
+                        $simple->header('List-Id');
+        my @dests;
+        for my $list_id (@list_ids) {
+                $list_id =~ /<[ \t]*(.+)?[ \t]*>/ or next;
+                if (my $ibx = $config->lookup_list_id($1)) {
+                        push @dests, $ibx;
+                }
+        }
+        if (scalar(@list_ids) > 1) {
+                warn "W: multiple List-IDs in message:\n";
+                warn "W: List-ID: $_\n" for @list_ids
+        }
+        \@dests;
+}
+
 1;