diff options
Diffstat (limited to 'lib/PublicInbox/Gcf2.pm')
| -rw-r--r-- | lib/PublicInbox/Gcf2.pm | 36 |
1 files changed, 34 insertions, 2 deletions
diff --git a/lib/PublicInbox/Gcf2.pm b/lib/PublicInbox/Gcf2.pm index fe76b1fd..7983c841 100644 --- a/lib/PublicInbox/Gcf2.pm +++ b/lib/PublicInbox/Gcf2.pm @@ -1,12 +1,13 @@ # Copyright (C) 2020 all contributors <meta@public-inbox.org> # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt> -# backend for public-inbox-gcf2(1) (git-cat-file based on libgit2, -# other libgit2 stuff may go here, too) +# backend for a git-cat-file-workalike based on libgit2, +# other libgit2 stuff may go here, too. package PublicInbox::Gcf2; use strict; use PublicInbox::Spawn qw(which popen_rd); use Fcntl qw(LOCK_EX); +use IO::Handle; # autoflush my (%CFG, $c_src, $lockfh); BEGIN { # PublicInbox::Spawn will set PERL_INLINE_DIRECTORY @@ -54,4 +55,35 @@ use Inline C => $c_src; undef $c_src; undef %CFG; undef $lockfh; + +# Usage: $^X -MPublicInbox::Gcf2 -e 'PublicInbox::Gcf2::loop()' +# (see lib/PublicInbox/Gcf2Client.pm) +sub loop { + my $gcf2 = new(); + STDERR->autoflush(1); + STDOUT->autoflush(1); + + while (<STDIN>) { + chomp; + my ($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: $$ $oid missing, retrying in $git_dir\n"; + + $gcf2 = new(); + $gcf2->add_alternate("$git_dir/objects"); + + if ($gcf2->cat_oid(1, $oid)) { + warn "I: $$ $oid found after retry\n"; + } else { + warn "W: $$ $oid missing after retry\n"; + print "$oid missing\n"; # mimic git-cat-file + } + } + } +} + 1; |