[CGit] [PATCH v2 0/6] Communicate the repo name to the filter scripts

From: Ferry Huberts <ferry.huberts@pelagic.nl>

Changes compared to v1:
- Rewritten to communicate the repo configuration via environment variables

This patch series fixes two bugs, does a cleanup and communicates the repo configuration to the filter scripts.

I have a server setup in which each repo has a trac instance and for the commit filter I really need to know with which repo I'm dealing in order to be able to resolve the #123 ticket numbers into hyperlinks into the correct trac instance.

Patch 0001 fixes a memory leak and can be applied regardless of the other
           patches.
Patch 0002 makes sure that all arguments for the filter are correctly
           initialised so that the argv[] list is always terminated with a NULL
           pointer, which is currently not the case for the source filter.
Patch 0003 does a cleanup by introducing an enum for the filter type so that
           the number of extra arguments can be determined in a single place.

The other patches implement my desired functionality.

Ferry Huberts (6):
  source_filter: fix a memory leak
  new_filter: correctly initialise all arguments for a new filter
  new_filter: determine extra_args from filter type
  cgit_open_filter: also take the repo as a parameter
  cgit_open_filter: hand down repo configuration to script
  filters: document environment variables in filter scripts

 cgit.c                         |   34 +++++++++---
 cgit.h                         |    6 ++-
 filters/commit-links.sh        |   11 ++++
 filters/syntax-highlighting.sh |   11 ++++
 shared.c                       |  110 +++++++++++++++++++++++++++++++++++++++-
 ui-commit.c                    |    6 +-
 ui-repolist.c                  |    2 +-
 ui-snapshot.c                  |    2 +-
 ui-summary.c                   |    2 +-
 ui-tree.c                      |    4 +-
 10 files changed, 169 insertions(+), 19 deletions(-)