#!perl -w
# Copyright (C) 2020 all contributors <meta@public-inbox.org>
# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
eval { require PublicInbox::Gcf2 };
die "libgit2 development package or Inline::C missing for $0: $@\n" if $@;
my $gcf2 = PublicInbox::Gcf2::new();
use IO::Handle; # autoflush
STDERR->autoflush(1);
STDOUT->autoflush(1);

while (<STDIN>) {
	chomp;
	my ($oid, $git_dir) = split(/ /, $_, 2);
	$gcf2->add_alternate("$git_dir/objects");
	if (!$gcf2->cat_oid(1, $oid)) {
		# retry once if missing.  We only get unabbreviated OIDs
		# from SQLite or Xapian DBs, here, so malicious clients
		# can't trigger excessive retries:
		warn "I: $$ $oid missing, retrying in $git_dir...\n";

		$gcf2 = PublicInbox::Gcf2::new();
		$gcf2->add_alternate("$git_dir/objects");

		if ($gcf2->cat_oid(1, $oid)) {
			warn "I: $$ $oid found after retry\n";
		} else {
			warn "W: $$ $oid missing after retry\n";
			print "$oid missing\n"; # mimic git-cat-file
		}
	}
}