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cache.h: drop LOCAL_REPO_ENV_SIZE

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We keep a static array of variables that should be cleared
when invoking a sub-process on another repo. We statically
size the array with the LOCAL_REPO_ENV_SIZE macro so that
any readers do not have to count it themselves.

As it turns out, no readers actually use the macro, and it
creates a maintenance headache, as modifications to the
array need to happen in two places (one to add the new
element, and another to bump the size).

Since it's NULL-terminated, we can just drop the size macro
entirely. While we're at it, we'll clean up some comments
around it, and add a new mention of it at the top of the
list of environment variable macros. Even though
local_repo_env is right below that list, it's easy to miss,
and additions to that list should consider local_repo_env.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff King
2013-03-08 04:29:08 -05:00
committed by Junio C Hamano
parent 5d4ef1721a
commit 2163e5dbb4
2 changed files with 8 additions and 10 deletions
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6
environment.c
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@@ -76,11 +76,9 @@ static const char *git_dir;
static char *git_object_dir, *git_index_file, *git_graft_file;
/*
* Repository-local GIT_* environment variables
* Remember to update local_repo_env_size in cache.h when
* the size of the list changes
* Repository-local GIT_* environment variables; see cache.h for details.
*/
const char * const local_repo_env[LOCAL_REPO_ENV_SIZE + 1] = {
const char * const local_repo_env[] = {
ALTERNATE_DB_ENVIRONMENT,
CONFIG_ENVIRONMENT,
CONFIG_DATA_ENVIRONMENT,