cgit: serve static css, logo, favicon directly

We can reduce the configuration needed to run cgit by reusing
the static file handling logic of the dumb git HTTP protocol.

I hate logos and icons, so don't expect public-inbox.org or
80x24.org to ever have those to waste users' bandwidth with :P
But I expect other users to find this useful.

1 files changed, 10 insertions, 0 deletions

diff --git a/lib/PublicInbox/Config.pm b/lib/PublicInbox/Config.pm
index 9f1e57ac..2c1c5111 100644
--- a/lib/PublicInbox/Config.pm
+++ b/lib/PublicInbox/Config.pm
@@ -234,6 +234,12 @@ sub scan_path_coderepo {
 
 sub parse_cgitrc {
         my ($self, $cgitrc, $nesting) = @_;
+        if ($nesting == 0) {
+                # defaults:
+                my %s = map { $_ => 1 } qw(/cgit.css /cgit.png
+                                                /favicon.ico /robots.txt);
+                $self->{-cgit_static} = \%s;
+        }
 
         # same limit as cgit/configfile.c::parse_configfile
         return if $nesting > 8;
@@ -263,6 +269,10 @@ sub parse_cgitrc {
                         $self->{-cgit_scan_hidden_path} = $1;
                 } elsif (m!\Ascan-path=(.+)\z!) {
                         scan_path_coderepo($self, '', $1);
+
+                } elsif (m!\A(?:css|favicon|logo|repo\.logo)=(/.+)\z!) {
+                        # absolute paths for static files via PublicInbox::Cgit
+                        $self->{-cgit_static}->{$1} = 1;
                 }
         }
         cgit_repo_merge($self, $repo) if $repo;