$self->{st} = \@st;
}
+sub last_check_err {
+ my ($self) = @_;
+ my $fh = $self->{err_c} or return;
+ sysseek($fh, 0, 0) or fail($self, "sysseek failed: $!");
+ defined(sysread($fh, my $buf, -s $fh)) or
+ fail($self, "sysread failed: $!");
+ $buf;
+}
+
sub _bidi_pipe {
- my ($self, $batch, $in, $out, $pid) = @_;
- return if $self->{$pid};
+ my ($self, $batch, $in, $out, $pid, $err) = @_;
+ if ($self->{$pid}) {
+ if (defined $err) { # "err_c"
+ my $fh = $self->{$err};
+ sysseek($fh, 0, 0) or fail($self, "sysseek failed: $!");
+ truncate($fh, 0) or fail($self, "truncate failed: $!");
+ }
+ return;
+ }
my ($in_r, $in_w, $out_r, $out_w);
pipe($in_r, $in_w) or fail($self, "pipe failed: $!");
my @cmd = ('git', "--git-dir=$self->{git_dir}", qw(cat-file), $batch);
my $redir = { 0 => fileno($out_r), 1 => fileno($in_w) };
+ if ($err) {
+ open(my $fh, '+>', undef) or fail($self, "open.err failed: $!");
+ $self->{$err} = $fh;
+ $redir->{2} = fileno($fh);
+ }
my $p = spawn(\@cmd, undef, $redir);
defined $p or fail($self, "spawn failed: $!");
$self->{$pid} = $p;
sub check {
my ($self, $obj) = @_;
- $self->_bidi_pipe(qw(--batch-check in_c out_c pid_c));
+ _bidi_pipe($self, qw(--batch-check in_c out_c pid_c err_c));
$self->{out_c}->print($obj, "\n") or fail($self, "write error: $!");
local $/ = "\n";
chomp(my $line = $self->{in_c}->getline);
my ($hex, $type, $size) = split(' ', $line);
return if $type eq 'missing';
+
+ # "dead" in git.git shows "dangling 4\ndead\n", not sure why
+ # https://public-inbox.org/git/20190118033845.s2vlrb3wd3m2jfzu@dcvr/
+ # so handle the oddball stuff just in case
+ if ($hex eq 'dangling' || $hex eq 'notdir' || $hex eq 'loop') {
+ $size = $type + length("\n");
+ my $r = read($self->{in_c}, my $buf, $size);
+ defined($r) or fail($self, "read failed: $!");
+ return;
+ }
+
($hex, $type, $size);
}