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| | # Copyright (C) 2021 all contributors <meta@public-inbox.org>
# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
# front-end for the "lei import" sub-command
package PublicInbox::LeiImport;
use strict;
use v5.10.1;
use parent qw(PublicInbox::IPC PublicInbox::LeiInput);
use PublicInbox::Eml;
use PublicInbox::PktOp qw(pkt_do);
sub eml_cb { # used by PublicInbox::LeiInput::input_fh
my ($self, $eml) = @_;
my $vmd;
if ($self->{-import_kw}) { # FIXME
my $kw = PublicInbox::MboxReader::mbox_keywords($eml);
$vmd = { kw => $kw } if scalar(@$kw);
}
my $xoids = $self->{lei}->{ale}->xoids_for($eml);
$self->{lei}->{sto}->ipc_do('set_eml', $eml, $vmd, $xoids);
}
sub mbox_cb { # MboxReader callback used by PublicInbox::LeiInput::input_fh
my ($eml, $self) = @_;
eml_cb($self, $eml);
}
sub import_done_wait { # dwaitpid callback
my ($arg, $pid) = @_;
my ($imp, $lei) = @$arg;
$lei->child_error($?, 'non-fatal errors during import') if $?;
my $sto = delete $lei->{sto};
my $wait = $sto->ipc_do('done') if $sto; # PublicInbox::LeiStore::done
$lei->dclose;
}
sub import_done { # EOF callback for main daemon
my ($lei) = @_;
my $imp = delete $lei->{imp} or return;
$imp->wq_wait_old(\&import_done_wait, $lei);
}
sub net_merge_complete { # callback used by LeiAuth
my ($self) = @_;
for my $input (@{$self->{inputs}}) {
$self->wq_io_do('import_path_url', [], $input);
}
$self->wq_close(1);
}
sub import_start {
my ($lei) = @_;
my $self = $lei->{imp};
$lei->ale; # initialize for workers to read
my $j = $lei->{opt}->{jobs} // scalar(@{$self->{inputs}}) || 1;
if (my $net = $lei->{net}) {
# $j = $net->net_concurrency($j); TODO
} else {
my $nproc = $self->detect_nproc;
$j = $nproc if $j > $nproc;
}
my $ops = { '' => [ \&import_done, $lei ] };
$lei->{auth}->op_merge($ops, $self) if $lei->{auth};
$self->{-wq_nr_workers} = $j // 1; # locked
my $op = $lei->workers_start($self, 'lei_import', undef, $ops);
$self->wq_io_do('import_stdin', []) if $self->{0};
net_merge_complete($self) unless $lei->{auth};
while ($op && $op->{sock}) { $op->event_step }
}
sub lei_import { # the main "lei import" method
my ($lei, @inputs) = @_;
my $sto = $lei->_lei_store(1);
$sto->write_prepare($lei);
my $self = $lei->{imp} = bless {}, __PACKAGE__;
$self->{-import_kw} = $lei->{opt}->{kw} // 1;
$self->prepare_inputs($lei, \@inputs) or return;
import_start($lei);
}
sub ipc_atfork_child {
my ($self) = @_;
my $lei = $self->{lei};
delete $lei->{imp}; # drop circular ref
$lei->lei_atfork_child;
$self->SUPER::ipc_atfork_child;
$lei->{auth}->do_auth_atfork($self) if $lei->{auth};
undef;
}
sub _import_maildir { # maildir_each_eml cb
my ($f, $kw, $eml, $sto, $set_kw) = @_;
$sto->ipc_do('set_eml', $eml, $set_kw ? { kw => $kw }: ());
}
sub _import_net { # imap_each, nntp_each cb
my ($url, $uid, $kw, $eml, $sto, $set_kw) = @_;
$sto->ipc_do('set_eml', $eml, $set_kw ? { kw => $kw } : ());
}
sub import_path_url {
my ($self, $input) = @_;
my $lei = $self->{lei};
my $ifmt = lc($lei->{opt}->{'in-format'} // '');
# TODO auto-detect?
if ($input =~ m!\Aimaps?://!i) {
$lei->{net}->imap_each($input, \&_import_net, $lei->{sto},
$self->{-import_kw});
return;
} elsif ($input =~ m!\A(?:nntps?|s?news)://!i) {
$lei->{net}->nntp_each($input, \&_import_net, $lei->{sto}, 0);
return;
} elsif ($input =~ s!\A([a-z0-9]+):!!i) {
$ifmt = lc $1;
}
if (-f $input) {
my $m = $lei->{opt}->{'lock'} // ($ifmt eq 'eml' ? ['none'] :
PublicInbox::MboxLock->defaults);
my $mbl = PublicInbox::MboxLock->acq($input, 0, $m);
$self->input_fh($ifmt, $mbl->{fh}, $input);
} elsif (-d _ && (-d "$input/cur" || -d "$input/new")) {
return $lei->fail(<<EOM) if $ifmt && $ifmt ne 'maildir';
$input appears to a be a maildir, not $ifmt
EOM
PublicInbox::MdirReader::maildir_each_eml($input,
\&_import_maildir,
$lei->{sto}, $self->{-import_kw});
} else {
$lei->fail("$input unsupported (TODO)");
}
}
sub import_stdin {
my ($self) = @_;
my $lei = $self->{lei};
my $in = delete $self->{0};
$self->input_fh($lei->{opt}->{'in-format'}, $in, '<stdin>');
}
no warnings 'once'; # the following works even when LeiAuth is lazy-loaded
*net_merge_all = \&PublicInbox::LeiAuth::net_merge_all;
1;
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