User-agent: *
# Index the repository summaries but no deeper
Disallow: /gitweb/?
Allow: /gitweb/?p=*;a=summary

# Meta crawlers don't seem to understand the above rules, so block them entirely
User-agent: meta-externalagent
Disallow: *

User-agent: meta-webindexer
Disallow: *

User-agent: meta-externalads
Disallow: *

# Thinkbot too
User-agent: Thinkbot
Disallow: *