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-rw-r--r--lib/PublicInbox/V2Writable.pm25
1 files changed, 24 insertions, 1 deletions
diff --git a/lib/PublicInbox/V2Writable.pm b/lib/PublicInbox/V2Writable.pm
index cd08acd7..331c4f4f 100644
--- a/lib/PublicInbox/V2Writable.pm
+++ b/lib/PublicInbox/V2Writable.pm
@@ -850,11 +850,19 @@ sub index_prepare {
         my $pr = $opts->{-progress};
         my $regen_max = 0;
         my $head = $self->{-inbox}->{ref_head} || 'refs/heads/master';
+
+        # reindex stops at the current heads and we later rerun index_sync
+        # without {reindex}
+        my $reindex_heads = last_commits($self, $epoch_max) if $opts->{reindex};
+
         for (my $i = $epoch_max; $i >= 0; $i--) {
                 die 'BUG: already indexing!' if $self->{reindex_pipe};
                 my $git_dir = git_dir_n($self, $i);
                 -d $git_dir or next; # missing parts are fine
                 my $git = PublicInbox::Git->new($git_dir);
+                if ($reindex_heads) {
+                        $head = $reindex_heads->[$i] or next;
+                }
                 chomp(my $tip = $git->qx(qw(rev-parse -q --verify), $head));
 
                 next if $?; # new repo
@@ -959,7 +967,14 @@ sub index_sync {
 
         my $high = $self->{mm}->num_highwater();
         my $regen = $self->index_prepare($opts, $epoch_max, $ranges);
-        $$regen += $high if $high;
+        if ($opts->{reindex}) {
+                # reindex should NOT see new commits anymore, if we do,
+                # it's a problem and we need to notice it via die()
+                $$regen = -1;
+        } else {
+                $$regen += $high;
+        }
+
         my $D = {}; # "$mid\0$cid" => $oid
         my @cmd = qw(log --raw -r --pretty=tformat:%H
                         --no-notes --no-color --no-abbrev --no-renames);
@@ -1001,6 +1016,14 @@ sub index_sync {
                 $git->cleanup;
         }
         $self->done;
+
+        # reindex does not pick up new changes, so we rerun w/o it:
+        if ($opts->{reindex}) {
+                my %again = %$opts;
+                $mm_tmp = undef;
+                delete @again{qw(reindex -skip_lock)};
+                index_sync($self, \%again);
+        }
 }
 
 1;