1 files changed, 22 insertions, 0 deletions
diff --git a/lib/PublicInbox/CompressNoop.pm b/lib/PublicInbox/CompressNoop.pm
new file mode 100644
index 00000000..fe73c2d1
--- /dev/null
+++ b/lib/PublicInbox/CompressNoop.pm
@@ -0,0 +1,22 @@
+# Copyright (C) 2020 all contributors <meta@public-inbox.org>
+# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
+
+# Provide the same methods as Compress::Raw::Zlib::Deflate but
+# does no transformation of outgoing data
+package PublicInbox::CompressNoop;
+use strict;
+use Compress::Raw::Zlib qw(Z_OK);
+
+sub new { bless \(my $self), __PACKAGE__ }
+
+sub deflate { # ($self, $input, $output)
+        $_[2] .= $_[1];
+        Z_OK;
+}
+
+sub flush { # ($self, $output, $flags = Z_FINISH)
+        $_[1] //= '';
+        Z_OK;
+}
+
+1;