v2writable: add NNTP article number regeneration support

[public-inbox.git] / script / public-inbox-index

diff --git a/script/public-inbox-index b/script/public-inbox-index
index cea357381307fe35b09e628fd185ccd7f1f0c219..52d6ba70af7a8401db7311ca89a66406de4b34a1 100755 (executable)
--- a/script/public-inbox-index
+++ b/script/public-inbox-index
@@ -23,8 +23,15 @@ if ($@) {
 }
 
 my $reindex;
-my %opts = ( '--reindex' => \$reindex );
+my $regen;
+my $jobs = undef;
+my %opts = (
+       '--reindex' => \$reindex,
+       '--regenerate' => \$regen,
+       '--jobs|j=i' => \$jobs,
+);
 GetOptions(%opts) or die "bad command-line args\n$usage";
+die "--jobs must be positive\n" if defined $jobs && $jobs <= 0;
 
 my @dirs;
 
@@ -93,8 +100,30 @@ sub index_dir {
        if (ref($repo) && ($repo->{version} || 1) == 2) {
                eval { require PublicInbox::V2Writable };
                die "v2 requirements not met: $@\n" if $@;
-               my $v2w = PublicInbox::V2Writable->new($repo);
-               $v2w->reindex;
+               my $v2w = eval {
+                       local $ENV{NPROC} = $jobs;
+                       PublicInbox::V2Writable->new($repo);
+               };
+               if (defined $jobs) {
+                       if ($jobs == 1) {
+                               $v2w->{parallel} = 0;
+                       } else {
+                               my $n = $v2w->{partitions};
+                               if ($jobs != $n) {
+                                       warn
+"Unable to respect --jobs=$jobs, inbox was created with $n partitions\n";
+                               }
+                       }
+               }
+               my $mm = $repo->mm;
+               my (undef, $max) = $mm->minmax if $mm;
+               if (defined($max) && !$reindex && !$regen) {
+                       die
+"v2 inboxes may only use --reindex and/or --regenerate once\n".
+"msgmap.sqlite3 is initialized\n";
+               }
+
+               $v2w->reindex($regen);
                $v2w->done;
        } else {
                my $s = PublicInbox::SearchIdx->new($repo, 1);