[PATCHv3] gitweb path info enhancements

[Giuseppe Bilotta <giuseppe.bilotta@gmail.com>]

Third run for the PATH_INFO handling enhancements in gitweb. A
trivial but important bugfix was sent as a separate patch, and the
other patches were rearranged a little, reducing the total number of
patches to four, paired in parsing and generation of the enhanced
PATH_INFO URLs.

The first two patches deal with the inclusion of action and hash or
the hash_base:filename pair in the URL, while still keeping support
for old-style PATH_INFO URLs whenever possible.

The other two patches extend the URL format to also include parent
hash/filename information when possible.

Giuseppe Bilotta (4):
  gitweb: parse project/action/hash_base:filename PATH_INFO
  gitweb: generate project/action/hash URLs
  gitweb: parse parent..current syntax from pathinfo
  gitweb: generate parent..current URLs

 gitweb/gitweb.perl |  167 +++++++++++++++++++++++++++++++++++++++-------------
 1 files changed, 126 insertions(+), 41 deletions(-)