tree f8497d0d4e90f6578a14379b7dd844213f6a3aa3
parent d0b7e18077a7ce937407a5bedcf343c69caff9db
author Dave Borowitz <dborowitz@google.com> 1357877252 -0800
committer Dave Borowitz <dborowitz@google.com> 1359065777 -0800

Implement a redirector for gitweb-style URLs.

Add a filter to the host index chain to redirect in the presence of
gitweb-style query parameters. Only handles gitweb URLs using the query
parameter flavor; see gitweb(1) for details.

The intent of this filter is to provide compatibility for preexisting
links to old gitweb URLs to be migrated to Gitiles; of course Gitiles
itself does not create such URLs. For this reason, use HTTP 301 (Moved
Permanently) for the redirect rather than 302 Found.

Include simple but not exhaustive tests; the code block in question is
far more concise than exhaustive tests would be.

Change-Id: Ief7022b7cd419fc0380992071ad6e4a4428a6169