Compare the available nginx versions and their modules (according to debian packages descriptions)

compare-nginx.py

#!/usr/bin/env python
import commands
pkg2list = {}
for pkgname in 'nginx-full nginx-extras nginx-light'.split():
    output = commands.getoutput('apt-cache show '+pkgname)
    desc = output.split('MODULES INCLUDED:')[1]
    lines = desc.split('\n')
    lines = [l.strip() for l in lines if l.strip() and not l.endswith(':')]
    modules = ' '.join(lines).split(',')
    pkg2list[pkgname] = set(modules)
modlist = sorted(reduce(lambda a,b:a|b, pkg2list.values(), set()))
pkgnames = pkg2list.keys()
print '{0:30}'.format(''),
for pkg in pkgnames:
    print '{0:15}'.format(pkg),
print
for mod in modlist:
    print '{0:30}'.format(mod),
    for pkg in pkgnames:
        flag = mod in pkg2list[pkg] and 'YES' or '-'
        print '{0:15}'.format(flag),
    print

Sample result.txt

                               nginx-full      nginx-extras    nginx-light    
 Access                        YES             YES             YES            
 Addition File AIO Mail Core   -               YES             -              
 Addition Mail Core            YES             -               -              
 Auth Basic                    YES             YES             YES            
 Auto Index                    YES             YES             YES            
 Browser                       YES             YES             -              
 Charset                       YES             YES             YES            
 Echo                          YES             YES             -              
 Embedded Lua                  -               YES             -              
 Embedded Perl                 -               YES             -              
 Empty GIF                     YES             YES             YES            
 FastCGI                       YES             YES             YES            
 Flash Streaming Video         -               YES             -              
 Geo                           YES             YES             -              
 GeoIP                         YES             YES             -              
 Gzip                          YES             YES             YES            
 Gzip Precompression           YES             YES             -              
 Headers                       YES             YES             YES            
 IMAP                          YES             YES             -              
 IPv6                          YES             YES             -              
 IPv6 None Echo                -               -               YES            
 Image Filter                  YES             YES             -              
 Index                         YES             YES             YES            
 Limit Requests                YES             YES             -              
 Limit Zone                    YES             YES             -              
 Log                           YES             YES             YES            
 Map                           YES             YES             -              
 Memcached                     YES             YES             -              
 Nginx Development Kit         -               YES             -              
 POP3                          YES             YES             -              
 Proxy                         YES             YES             YES            
 Random Index                  -               YES             -              
 RealIP                        YES             YES             -              
 Referer                       YES             YES             -              
 Rewrite                       YES             YES             YES            
 SCGI                          YES             YES             -              
 SMTP                          YES             YES             -              
 SSI                           YES             YES             -              
 SSL Upstream Fair Queue       YES             YES             -              
 Secure Link                   -               YES             -              
 Split Clients                 YES             YES             YES            
 Stub Status                   YES             YES             -              
 UWSGI Debug                   YES             YES             -              
 Upstream                      YES             YES             YES            
 User ID                       YES             YES             -              
 User ID Gzip Precompression   -               -               YES            
 WebDAV                        YES             YES             -              
 XSLT                          YES             YES             -              
Core                           YES             YES             YES    

Alternatively: https://wiki.debian.org/Nginx