path: root/sha1_file.c
diff options
authorJunio C Hamano <>2005-05-10 00:57:56 (GMT)
committerJunio C Hamano <>2005-05-10 00:57:56 (GMT)
commitd19938ab6053e3dad75a68a60ef8cad1f378b0e5 (patch)
treea82858b907bc445193e07777d0d65eac0e30742c /sha1_file.c
parentb3f94c4b554cd6c3db3e99dc33bdac7d8155d606 (diff)
Rename environment variables.
H. Peter Anvin mentioned that using SHA1_whatever as an environment variable name is not nice and we should instead use names starting with "GIT_" prefix to avoid conflicts. Here is what this patch does: * Renames the following environment variables: New name Old Name GIT_AUTHOR_DATE AUTHOR_DATE GIT_AUTHOR_EMAIL AUTHOR_EMAIL GIT_AUTHOR_NAME AUTHOR_NAME GIT_COMMITTER_EMAIL COMMIT_AUTHOR_EMAIL GIT_COMMITTER_NAME COMMIT_AUTHOR_NAME GIT_ALTERNATE_OBJECT_DIRECTORIES SHA1_FILE_DIRECTORIES GIT_OBJECT_DIRECTORY SHA1_FILE_DIRECTORY * Introduces a compatibility macro, gitenv(), which does an getenv() and if it fails calls gitenv_bc(), which in turn picks up the value from old name while giving a warning about using an old name. * Changes all users of the environment variable to fetch environment variable with the new name using gitenv(). * Updates the documentation and scripts shipped with Linus GIT distribution. The transition plan is as follows: * We will keep the backward compatibility list used by gitenv() for now, so the current scripts and user environments continue to work as before. The users will get warnings when they have old name but not new name in their environment to the stderr. * The Porcelain layers should start using new names. However, just in case it ends up calling old Plumbing layer implementation, they should also export old names, taking values from the corresponding new names, during the transition period. * After a transition period, we would drop the compatibility support and drop gitenv(). Revert the callers to directly call getenv() but keep using the new names. The last part is probably optional and the transition duration needs to be set to a reasonable value. Signed-off-by: Junio C Hamano <>
Diffstat (limited to 'sha1_file.c')
1 files changed, 4 insertions, 4 deletions
diff --git a/sha1_file.c b/sha1_file.c
index 549d45a..430f5fd 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -120,7 +120,7 @@ static void fill_sha1_path(char *pathbuf, const unsigned char *sha1)
* Also note that this returns the location for creating. Reading
* SHA1 file can happen from any alternate directory listed in the
- * SHA1_FILE_DIRECTORIES environment variable if it is not found in
+ * DB_ENVIRONMENT environment variable if it is not found in
* the primary object database.
char *sha1_file_name(const unsigned char *sha1)
@@ -128,7 +128,7 @@ char *sha1_file_name(const unsigned char *sha1)
static char *name, *base;
if (!base) {
- char *sha1_file_directory = get_object_directory();
+ const char *sha1_file_directory = get_object_directory();
int len = strlen(sha1_file_directory);
base = xmalloc(len + 60);
memcpy(base, sha1_file_directory, len);
@@ -151,7 +151,7 @@ static struct alternate_object_database {
* alt_odb points at an array of struct alternate_object_database.
* This array is terminated with an element that has both its base
* and name set to NULL. alt_odb[n] comes from n'th non-empty
- * element from colon separated $SHA1_FILE_DIRECTORIES environment
+ * element from colon separated ALTERNATE_DB_ENVIRONMENT environment
* variable, and its base points at a statically allocated buffer
* that contains "/the/directory/corresponding/to/.git/objects/...",
* while its name points just after the slash at the end of
@@ -167,7 +167,7 @@ static void prepare_alt_odb(void)
int pass, totlen, i;
const char *cp, *last;
char *op = 0;
- const char *alt = getenv(ALTERNATE_DB_ENVIRONMENT) ? : "";
+ const char *alt = gitenv(ALTERNATE_DB_ENVIRONMENT) ? : "";
/* The first pass counts how large an area to allocate to
* hold the entire alt_odb structure, including array of