use PublicInbox::LeiDedupe;
use Symbol qw(gensym);
use IO::Handle; # ->autoflush
-use Fcntl qw(SEEK_SET);
+use Fcntl qw(SEEK_SET SEEK_END);
my %kw2char = ( # Maildir characters
draft => 'D',
my ($cls, $mbox, $dst, $lei) = @_;
my $m = "eml2$mbox";
my $eml2mbox = $cls->can($m) or die "$cls->$m missing";
- my ($out, $pipe_lk);
- open $out, '+>>', $dst or die "open $dst: $!";
- # Perl does SEEK_END even with O_APPEND :<
- seek($out, 0, SEEK_SET) or die "seek $dst: $!";
+ my ($out, $pipe_lk, $seekable);
+ # XXX should we support /dev/stdout.gz ?
+ if ($dst eq '/dev/stdout') {
+ $out = $lei->{1};
+ } else { # TODO: mbox locking
+ open $out, '+>>', $dst or die "open $dst: $!";
+ # Perl does SEEK_END even with O_APPEND :<
+ $seekable = seek($out, 0, SEEK_SET);
+ die "seek $dst: $!\n" if !$seekable && !$!{ESPIPE};
+ }
my $jobs = $lei->{opt}->{jobs} // 0;
my $atomic = $jobs > 1;
my $dedupe = $lei->{dedupe} = PublicInbox::LeiDedupe->new($lei);
state $zsfx_allow = join('|', keys %zsfx2cmd);
my ($zsfx) = ($dst =~ /\.($zsfx_allow)\z/);
if ($lei->{opt}->{augment}) {
- if (-s $out && $dedupe->prepare_dedupe) {
+ if ($seekable && -s $out && $dedupe->prepare_dedupe) {
my $rd = $zsfx ? decompress_src($out, $zsfx, $lei) :
dup_src($out);
PublicInbox::MboxReader->$mbox($rd, \&_augment, $lei);
+ } elsif ($seekable && !$atomic) {
+ seek($out, 0, SEEK_END) or die "seek: $!";
}
$dedupe->pause_dedupe if $jobs; # are we forking?
- } else {
+ } elsif ($seekable) {
truncate($out, 0) or die "truncate $dst: $!";
- $dedupe->prepare_dedupe if !$jobs;
}
+ $dedupe->prepare_dedupe if !$jobs;
($out, $pipe_lk) = compress_dst($out, $zsfx, $lei) if $zsfx;
sub {
my ($buf, $oid, $kw) = @_;