replace Xapian skeleton with SQLite overview DB

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

diff --git a/script/public-inbox-compact b/script/public-inbox-compact
index 016873d31e23fd93afc90e929bb6378f42543392..e69771650797b9a3ff55d1ca7f3755e7f2972799 100755 (executable)
--- a/script/public-inbox-compact
+++ b/script/public-inbox-compact
@@ -10,11 +10,11 @@ use PublicInbox::Config;
 use Cwd 'abs_path';
 use File::Temp qw(tempdir);
 use File::Path qw(remove_tree);
-use PublicInbox::Spawn qw(spawn);
 my $usage = "Usage: public-inbox-compact REPO_DIR\n";
 my $dir = shift or die $usage;
 my $config = PublicInbox::Config->new;
 my $ibx;
+$dir = abs_path($dir);
 $config->each_inbox(sub {
        $ibx = $_[0] if abs_path($_[0]->{mainrepo}) eq $dir
 });
@@ -29,66 +29,58 @@ unless ($ibx) {
        $ibx = PublicInbox::Inbox->new($ibx);
 }
 my $v = ($ibx->{version} || 1);
+$ibx = PublicInbox::InboxWritable->new($ibx);
+$ibx->umask_prepare;
+
+sub commit_changes ($$$) {
+       my ($im, $old, $new) = @_;
+       my @st = stat($old) or die "failed to stat($old): $!\n";
+       link("$old/over.sqlite3", "$new/over.sqlite3") or die
+               "failed to link {$old => $new}/over.sqlite3: $!\n";
+       rename($old, "$new/old") or die "rename $old => $new/old: $!\n";
+       chmod($st[2] & 07777, $new) or die "chmod $old: $!\n";
+       rename($new, $old) or die "rename $new => $old: $!\n";
+       $im->lock_release;
+       remove_tree("$old/old") or die "failed to remove $old/old: $!\n";
+}
+
 if ($v == 2) {
        require PublicInbox::V2Writable;
        my $v2w = PublicInbox::V2Writable->new($ibx);
        my $xap_v = 'xap'.PublicInbox::Search::SCHEMA_VERSION;
-       my $xroot = "$ibx->{mainrepo}/$xap_v";
-       opendir my $dh, $xroot or die "Failed to opendir $xroot: $!\n";
-       $v2w->lock_acquire;
-       my $new = tempdir(CLEANUP => 1, DIR => $ibx->{mainrepo});
-       my @parts;
-       my $skel;
-       while (defined(my $dn = readdir($dh))) {
-               if ($dn =~ /\A\d+\z/) {
-                       push @parts, "$xroot/$dn";
-               } elsif ($dn eq 'skel') {
-                       $skel = "$xroot/$dn";
-               } elsif ($dn eq '.' || $dn eq '..') {
-               } else {
-                       warn "W: skipping unknown Xapian DB: $xroot/$dn\n";
+       my $old = "$dir/$xap_v";
+       opendir my $dh, $old or die "Failed to opendir $old: $!\n";
+       my $new = tempdir('compact-XXXXXXXX', CLEANUP => 1, DIR => $dir);
+       $ibx->with_umask(sub {
+               $v2w->lock_acquire;
+               my @parts;
+               while (defined(my $dn = readdir($dh))) {
+                       if ($dn =~ /\A\d+\z/) {
+                               push @parts, "$old/$dn";
+                       } elsif ($dn eq '.' || $dn eq '..') {
+                       } else {
+                               warn "W: skipping unknown Xapian DB: $old/$dn\n"
+                       }
                }
-       }
-       close $dh;
-       my %pids;
-       if (@parts) {
-               my $pid = spawn([ qw(xapian-compact), @parts, "$new/0" ]);
-               defined $pid or die "compact failed: $?\n";
-               $pids{$pid} = 'xapian-compact (parts)';
-       } else {
-               warn "No parts found in $xroot\n";
-       }
-       if (defined $skel) {
-               my $pid = spawn([ qw(xapian-compact), $skel, "$new/skel" ]);
-               defined $pid or die "compact failed: $?\n";
-               $pids{$pid} = 'xapian-compact (skel)';
-       } else {
-               warn "$xroot/skel missing\n";
-       }
-       die "No xapian-compact processes running\n" unless scalar keys %pids;
-       while (scalar keys %pids) {
-               my $pid = waitpid(-1, 0);
-               my $desc = delete $pids{$pid};
-               die "$desc failed: $?\n" if $?;
-       }
-       rename($xroot, "$new/old") or die "rename $xroot => $new/old: $!\n";
-       rename($new, $xroot) or die "rename $new => $xroot: $!\n";
-       $v2w->lock_release;
-       remove_tree("$xroot/old") or die "failed to remove $xroot/old: $!\n";
+               close $dh;
+               die "No Xapian parts found in $old\n" unless @parts;
+               my $cmd = ['xapian-compact', @parts, "$new/0" ];
+               PublicInbox::Import::run_die($cmd);
+               commit_changes($v2w, $old, $new);
+       });
 } elsif ($v == 1) {
        require PublicInbox::Import;
        my $im = PublicInbox::Import->new($ibx->git, undef, undef, $ibx);
        my $xap_v = 'xapian'.PublicInbox::Search::SCHEMA_VERSION;
-       my $v1_root = "$ibx->{mainrepo}/public-inbox";
+       my $v1_root = "$dir/public-inbox";
        my $old = "$v1_root/$xap_v";
        -d $old or die "$old does not exist\n";
-       my $new = tempdir(CLEANUP => 1, DIR => $v1_root);
-       $im->lock_acquire;
-       PublicInbox::Import::run_die([ qw(xapian-compact), $old, $new ]);
-       rename($old, "$new/old") or die "rename $old => $new: $!\n";
-       rename($new, $old) or die "rename $new => $old: $!\n";
-       $im->lock_release;
-       remove_tree("$old/old") or die "failed to remove $old/old: $!\n";
+       my $new = tempdir('compact-XXXXXXXX', CLEANUP => 1, DIR => $v1_root);
+       $ibx->with_umask(sub {
+               $im->lock_acquire;
+               PublicInbox::Import::run_die(['xapian-compact', $old, $new]);
+               commit_changes($im, $old, $new);
+       });
 } else {
        die "Unsupported inbox version: $v\n";
 }