how to make git smart http transport work on nginx?

Question

I've tried this in many different ways. Here is probably the best configuration I've managed to come up with.

nginx:

server {
    server_name   git.x-yuri.pp.ua;
    access_log   /var/log/nginx/git.x-yuri.pp.ua-access.log;
    error_log   /var/log/nginx/git.x-yuri.pp.ua.com-error.log;

    include common;

    location / {
        fastcgi_pass   unix:/var/run/fcgiwrap.socket;

        # fastcgi_param   DOCUMENT_ROOT   /home/yuri/git;
        # fastcgi_param   SCRIPT_NAME   /1.pl;
        fastcgi_param   DOCUMENT_ROOT   /usr/lib/git-core;
        fastcgi_param   SCRIPT_NAME   /git-http-backend;
        include fastcgi_params;
        fastcgi_param   DOCUMENT_ROOT   /home/yuri/git;

        fastcgi_param   GIT_HTTP_EXPORT_ALL   "";
        fastcgi_param   GIT_PROJECT_ROOT   /home/yuri/git;
        fastcgi_param   PATH_INFO   $request_uri;
    }
}

I've written a little script to intercept data between fcgiwrap and git-http-backend. Here it is:

#!/usr/bin/perl
use Data::Dumper;
my $output = `/usr/lib/git-core/git-http-backend`;
open my $fh, '>', '/home/yuri/git/1/1.txt';
print $fh $output;
print $fh Dumper {map {$_ => $ENV{$_}} 'QUERY_STRING', 'REQUEST_METHOD', 'CONTENT_TYPE', 'CONTENT_LENGTH', 'SCRIPT_NAME', 'REQUEST_URI', 'DOCUMENT_URI', 'DOCUMENT_ROOT', 'SERVER_PROTOCOL', 'GATEWAY_INTERFACE', 'SERVER_SOFTWARE', 'REMOTE_ADDR', 'REMOTE_PORT', 'SERVER_ADDR', 'SERVER_PORT', 'SERVER_NAME', 'REDIRECT_STATUS'};
print $output;

And here is the output I get:

$ git clone http://git.domain.com/1.git
Cloning into '1'...
fatal: http://git.domain.com/1.git/info/refs?service=git-upload-pack not found: did you run git update-server-info on the server?

Apparently, I did run git update-server-info. Because for example I can clone this repository without git-http-backend:

server {
    server_name   git.domain.com;
    root   /home/yuri/git;
}

And here is the data I get in 1.txt:

Status: 404 Not Found^M
Expires: Fri, 01 Jan 1980 00:00:00 GMT^M
Pragma: no-cache^M
Cache-Control: no-cache, max-age=0, must-revalidate^M
^M
$VAR1 = {
          'SERVER_NAME' => 'git.domain.com',
          'SCRIPT_NAME' => '/1.git/info/refs',
          'CONTENT_LENGTH' => '',
          'REQUEST_METHOD' => 'GET',
          'SERVER_SOFTWARE' => 'nginx/0.7.67',
          'REMOTE_PORT' => '53908',
          'QUERY_STRING' => 'service=git-upload-pack',
          'SERVER_PORT' => '80',
          'REDIRECT_STATUS' => '200',
          'REMOTE_ADDR' => 'x.x.x.x',
          'CONTENT_TYPE' => '',
          'SERVER_PROTOCOL' => 'HTTP/1.1',
          'DOCUMENT_URI' => '/1.git/info/refs',
          'REQUEST_URI' => '/1.git/info/refs?service=git-upload-pack',
          'GATEWAY_INTERFACE' => 'CGI/1.1',
          'SERVER_ADDR' => 'x.x.x.x',
          'DOCUMENT_ROOT' => '/home/yuri/git'
        };

I'm running Debian squeeze, fcgiwrap-1.0, git-1.7.2.5, nginx-0.7.67.

UPD I would be grateful if someone could at least provide me with the output of my script under apache?

---

On a side note, this version of fcgiwrap ignores SCRIPT_FILENAME. DOCUMENT_ROOT and SCRIPT_NAME are concatenated and split back again into the script name and PATH_INFO. But the first fastcgi_param DOCUMENT_ROOT must point to the right location, otherwise fcgiwrap wouldn't find the script to be launched for some reason. That is, this doesn't work:

        fastcgi_param   DOCUMENT_ROOT   $document_root;   # /usr/local/nginx/html
        fastcgi_param   DOCUMENT_ROOT   /home/yuri/git;

But this works:

        fastcgi_param   DOCUMENT_ROOT   /home/yuri/git;
        fastcgi_param   DOCUMENT_ROOT   $document_root;   # /usr/local/nginx/html

That is the reason behind slightly obscure nginx configuration:

        fastcgi_param   DOCUMENT_ROOT   /usr/lib/git-core;
        ...
        include fastcgi_params;
        fastcgi_param   DOCUMENT_ROOT   /home/yuri/git;

But there are some setups when it works...