This is a rudimentary test of the CGI files as of d74fc8dec2b4.
$ hg init test
$ cat >hgweb.cgi <<HGWEB
> #!/usr/bin/env python
> #
> # An example CGI script to use hgweb, edit as necessary
>
> import cgitb
> cgitb.enable()
>
> from mercurial import demandimport; demandimport.enable()
> from mercurial.hgweb import hgweb
> from mercurial.hgweb import wsgicgi
>
> application = hgweb("test", "Empty test repository")
> wsgicgi.launch(application)
> HGWEB
$ chmod 755 hgweb.cgi
$ cat >hgweb.config <<HGWEBDIRCONF
> [paths]
> test = test
> HGWEBDIRCONF
$ cat >hgwebdir.cgi <<HGWEBDIR
> #!/usr/bin/env python
> #
> # An example CGI script to export multiple hgweb repos, edit as necessary
>
> import cgitb
> cgitb.enable()
>
> from mercurial import demandimport; demandimport.enable()
> from mercurial.hgweb import hgwebdir
> from mercurial.hgweb import wsgicgi
>
> application = hgwebdir("hgweb.config")
> wsgicgi.launch(application)
> HGWEBDIR
$ chmod 755 hgwebdir.cgi
$ DOCUMENT_ROOT="/var/www/hg"; export DOCUMENT_ROOT
$ GATEWAY_INTERFACE="CGI/1.1"; export GATEWAY_INTERFACE
$ HTTP_ACCEPT="text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5"; export HTTP_ACCEPT
$ HTTP_ACCEPT_CHARSET="ISO-8859-1,utf-8;q=0.7,*;q=0.7"; export HTTP_ACCEPT_CHARSET
$ HTTP_ACCEPT_ENCODING="gzip,deflate"; export HTTP_ACCEPT_ENCODING
$ HTTP_ACCEPT_LANGUAGE="en-us,en;q=0.5"; export HTTP_ACCEPT_LANGUAGE
$ HTTP_CACHE_CONTROL="max-age=0"; export HTTP_CACHE_CONTROL
$ HTTP_CONNECTION="keep-alive"; export HTTP_CONNECTION
$ HTTP_HOST="hg.omnifarious.org"; export HTTP_HOST
$ HTTP_KEEP_ALIVE="300"; export HTTP_KEEP_ALIVE
$ HTTP_USER_AGENT="Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.8.0.4) Gecko/20060608 Ubuntu/dapper-security Firefox/1.5.0.4"; export HTTP_USER_AGENT
$ PATH_INFO="/"; export PATH_INFO
$ PATH_TRANSLATED="/var/www/hg/index.html"; export PATH_TRANSLATED
$ QUERY_STRING=""; export QUERY_STRING
$ REMOTE_ADDR="127.0.0.2"; export REMOTE_ADDR
$ REMOTE_PORT="44703"; export REMOTE_PORT
$ REQUEST_METHOD="GET"; export REQUEST_METHOD
$ REQUEST_URI="/test/"; export REQUEST_URI
$ SCRIPT_FILENAME="/home/hopper/hg_public/test.cgi"; export SCRIPT_FILENAME
$ SCRIPT_NAME="/test"; export SCRIPT_NAME
$ SCRIPT_URI="http://hg.omnifarious.org/test/"; export SCRIPT_URI
$ SCRIPT_URL="/test/"; export SCRIPT_URL
$ SERVER_ADDR="127.0.0.1"; export SERVER_ADDR
$ SERVER_ADMIN="eric@localhost"; export SERVER_ADMIN
$ SERVER_NAME="hg.omnifarious.org"; export SERVER_NAME
$ SERVER_PORT="80"; export SERVER_PORT
$ SERVER_PROTOCOL="HTTP/1.1"; export SERVER_PROTOCOL
$ SERVER_SIGNATURE="<address>Apache/2.0.53 (Fedora) Server at hg.omnifarious.org Port 80</address>"; export SERVER_SIGNATURE
$ SERVER_SOFTWARE="Apache/2.0.53 (Fedora)"; export SERVER_SOFTWARE
$ python hgweb.cgi > page1
$ python hgwebdir.cgi > page2
$ PATH_INFO="/test/"
$ PATH_TRANSLATED="/var/something/test.cgi"
$ REQUEST_URI="/test/test/"
$ SCRIPT_URI="http://hg.omnifarious.org/test/test/"
$ SCRIPT_URL="/test/test/"
$ python hgwebdir.cgi > page3
$ grep -i error page1 page2 page3
[1]