tree e957eb0deedd05d277999588f45b2eb529782b94
parent 22c45b3b74a55b75d0011343e41152857f1921cb
author Dave Borowitz <dborowitz@google.com> 1393878339 -0500
committer Dave Borowitz <dborowitz@google.com> 1393878339 -0500

Get Config for a request from the GitilesAccess

Allow for per-repo configuration by reading config values on each
request rather than in servlet constructors. Reading a single config
value is cheap enough, but parsing configs from the on-disk format is
potentially expensive; leave this optimization up to the
GitilesAccess implementation.

Currently, in DefaultAccess, we just pass in the global config, no
per-repo config. This is simple expediency because Config objects
don't trivially support merging multiple configs except by
"inheritance".

Because of the way we were caching per-config maps of extension to
ArchiveFormat, this requires some more substantial refactoring to
that class and ArchiveServlet.

Change-Id: Ia1fcf97ecc71571537402629f49e8a65128a105e