run_hook(): enhance the interface to pass arbitrary environmentjc/run-hook-env-1

Originally "run_hook()" that used to live in builtin/commit.c had a
perfectly appropriate API and name for a private function to spawn a
hook from "git commit" command. The only necessary tweak in the
context was to optionally specify which file to use as the index
file.

But then we stupidly moved this private API to run-command.c without
making the interface suitable for general consumption, and there is
no way to tweak environment variables other than GIT_INDEX_FILE when
running a hook.

Correct this mistake by adding run_hook_e() that takes an array of
environment variables.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

0 files changed, 0 insertions, 0 deletions