make Plack optional for non-WWW and non-httpd users

[public-inbox.git] / script / public-inbox.cgi

diff --git a/script/public-inbox.cgi b/script/public-inbox.cgi
index c0e8e6c329b792333941f6f8d975fcb77d7dfb3e..c766483a208cacb4dceec28e8c80795447591ed6 100755 (executable)
--- a/script/public-inbox.cgi
+++ b/script/public-inbox.cgi
@@ -1,14 +1,17 @@
 #!/usr/bin/perl -w
-# Copyright (C) 2014-2019 all contributors <meta@public-inbox.org>
+# Copyright (C) 2014-2020 all contributors <meta@public-inbox.org>
 # License: AGPL-3.0+ or later <https://www.gnu.org/licenses/agpl-3.0.txt>
 #
 # Enables using PublicInbox::WWW as a CGI script
 use strict;
-use warnings;
-use Plack::Builder;
-use Plack::Handler::CGI;
-use PublicInbox::WWW;
-BEGIN { PublicInbox::WWW->preload if $ENV{MOD_PERL} }
+BEGIN {
+       for (qw(Plack::Builder Plack::Handler::CGI)) {
+               eval("require $_") or die "E: Plack is required for $0\n";
+       }
+       Plack::Builder->import;
+       require PublicInbox::WWW;
+       PublicInbox::WWW->preload if $ENV{MOD_PERL};
+}
 my $www = PublicInbox::WWW->new;
 my $have_deflater = eval { require Plack::Middleware::Deflater; 1 };
 my $app = builder {