[PATCHv4 1/6] environment: static list of repo-local env vars

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

Signed-off-by: Giuseppe Bilotta <giuseppe.bilotta@gmail.com>
---
 cache.h       |    3 +++
 environment.c |   15 +++++++++++++++
 2 files changed, 18 insertions(+), 0 deletions(-)

diff --git a/cache.h b/cache.h
index d454b7e..3b44fe2 100644
--- a/cache.h
+++ b/cache.h
@@ -388,6 +388,9 @@ static inline enum object_type object_type(unsigned int mode)
 #define GIT_NOTES_REF_ENVIRONMENT "GIT_NOTES_REF"
 #define GIT_NOTES_DEFAULT_REF "refs/notes/commits"
 
+extern const char *const local_repo_env[];
+extern const unsigned int local_repo_env_size;
+
 extern int is_bare_repository_cfg;
 extern int is_bare_repository(void);
 extern int is_inside_git_dir(void);
diff --git a/environment.c b/environment.c
index 739ec27..b15352d 100644
--- a/environment.c
+++ b/environment.c
@@ -63,6 +63,21 @@ static char *work_tree;
 static const char *git_dir;
 static char *git_object_dir, *git_index_file, *git_refs_dir, *git_graft_file;
 
+/* Repository-local GIT_* environment variables */
+const char *const local_repo_env[] = {
+	ALTERNATE_DB_ENVIRONMENT,
+	CONFIG_ENVIRONMENT,
+	DB_ENVIRONMENT,
+	GIT_DIR_ENVIRONMENT,
+	GIT_WORK_TREE_ENVIRONMENT,
+	GRAFT_ENVIRONMENT,
+	INDEX_ENVIRONMENT,
+	NO_REPLACE_OBJECTS_ENVIRONMENT,
+	NULL
+};
+
+const unsigned int local_repo_env_size = ARRAY_SIZE(local_repo_env);
+
 static void setup_git_env(void)
 {
 	git_dir = getenv(GIT_DIR_ENVIRONMENT);
-- 
1.7.0.212.g4e217.dirty