[RFC/PATCH 0/2] Introduce safe-include config feature

[trimming Ccs]

This is an attempt at implementing the suggested safe-include config feature. It mostly has the semantics Junio suggested in the parent post, but it does not directly extend the current include directive; instead, it uses a separate safe-include directive. This is done so that if a repository is used with both old and new versions of git, the older versions will just silently ignore the safe-include, instead of ignoring include.safe and then proceeding to processing "path = ../project.gitconfig".

Config variables are whitelisted using safe-include.whitelist; the value is interpreted as a whitespace-separated list of, possibly negated, patterns. Later patterns override earlier ones.

If the feature is deemed worthwhile and my approach is acceptable, I'll go ahead and try to write some documentation. For now, there is just a small test script.

Rasmus Villemoes (2):
  config: Add safe-include directive
  config: Add test of safe-include feature

 config.c                       | 91 +++++++++++++++++++++++++++++++++++++--
 t/t1309-config-safe-include.sh | 96 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 184 insertions(+), 3 deletions(-)
 create mode 100755 t/t1309-config-safe-include.sh