1 files changed, 9 insertions, 3 deletions
diff --git a/lib/PublicInbox/GitCatFile.pm b/lib/PublicInbox/GitCatFile.pm
index b75389e2..8bc6a238 100644
--- a/lib/PublicInbox/GitCatFile.pm
+++ b/lib/PublicInbox/GitCatFile.pm
@@ -8,7 +8,6 @@ use strict;
  use warnings;
  use Fcntl qw(F_GETFD F_SETFD FD_CLOEXEC);
  use POSIX qw(dup2);
-require IO::Handle;
  
  sub new {
          my ($class, $git_dir) = @_;
@@ -42,7 +41,6 @@ sub _cat_file_begin {
          close $out_r or die "close failed: $!\n";
          close $in_w or die "close failed: $!\n";
  
-        $out_w->autoflush(1);
          $self->{in} = $in_r;
          $self->{out} = $out_w;
          $self->{pid} = $pid;
@@ -51,8 +49,16 @@ sub _cat_file_begin {
  sub cat_file {
          my ($self, $object) = @_;
  
+        $object .= "\n";
+        my $len = bytes::length($object);
+
          $self->_cat_file_begin;
-        print { $self->{out} } $object, "\n" or die "write error: $!\n";
+        my $written = syswrite($self->{out}, $object);
+        if (!defined $written) {
+                die "pipe write error: $!\n";
+        } elsif ($written != $len) {
+                die "wrote too little to pipe ($written < $len)\n";
+        }
  
          my $in = $self->{in};
          my $head = <$in>;