use Net::SSLeay (OpenSSL) for SHA-(1|256) if installed

On my x86-64 machine, OpenSSL SHA-256 is nearly twice as fast as
the Digest::SHA implementation from Perl, most likely due to an
optimized assembly implementation.  SHA-1 is a few percent
faster, too.

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/PublicInbox/Fetch.pm b/lib/PublicInbox/Fetch.pm
index 198e2a60..f93eeebe 100644
--- a/lib/PublicInbox/Fetch.pm
+++ b/lib/PublicInbox/Fetch.pm
@@ -92,9 +92,9 @@ sub do_manifest ($$$) {
 
 sub get_fingerprint2 {
         my ($git_dir) = @_;
-        require Digest::SHA;
+        require PublicInbox::SHA;
         my $rd = popen_rd([qw(git show-ref)], undef, { -C => $git_dir });
-        Digest::SHA::sha256(do { local $/; <$rd> });
+        PublicInbox::SHA::sha256(do { local $/; <$rd> });
 }
 
 sub writable_dir ($) {