#!/usr/bin/perl -w
# Copyright (C) 2018 all contributors
# License: AGPL-3.0+
use strict;
use warnings;
use Getopt::Long qw(:config gnu_getopt no_ignore_case auto_abbrev);
use PublicInbox::V2Writable;
use PublicInbox::Search;
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 $dir
});
unless ($ibx) {
warn "W: $dir not configured in ".
PublicInbox::Config::default_file() . "\n";
$ibx = {
mainrepo => $dir,
name => 'ignored',
address => [ 'old@example.com' ],
};
$ibx = PublicInbox::Inbox->new($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): $!\n";
rename($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 $old = "$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;
my $skel;
while (defined(my $dn = readdir($dh))) {
if ($dn =~ /\A\d+\z/) {
push @parts, "$old/$dn";
} elsif ($dn eq 'skel') {
$skel = "$old/$dn";
} elsif ($dn eq '.' || $dn eq '..') {
} else {
warn "W: skipping unknown Xapian DB: $old/$dn\n"
}
}
close $dh;
my %pids;
if (@parts) {
my $pid = spawn(['xapian-compact', @parts, "$new/0" ]);
defined $pid or die "compact failed: $?\n";
$pids{$pid} = 'xapian-compact (parts)';
} else {
warn "No parts found in $old\n";
}
if (defined $skel) {
my $pid = spawn(['xapian-compact', $skel, "$new/skel"]);
defined $pid or die "compact failed: $?\n";
$pids{$pid} = 'xapian-compact (skel)';
} else {
warn "$old/skel missing\n";
}
scalar keys %pids or
die "No xapian-compact processes running\n";
while (scalar keys %pids) {
my $pid = waitpid(-1, 0);
my $desc = delete $pids{$pid};
die "$desc failed: $?\n" if $?;
}
commit_changes($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 $v1_root = "$dir/public-inbox";
my $old = "$v1_root/$xap_v";
-d $old or die "$old does not exist\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";
}