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Introduce GIT_DIR environment variable.

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During the mailing list discussion on renaming GIT_ environment
variables, people felt that having one environment that lets the
user (or Porcelain) specify both SHA1_FILE_DIRECTORY (now
GIT_OBJECT_DIRECTORY) and GIT_INDEX_FILE for the default layout
would be handy.  This change introduces GIT_DIR environment
variable, from which the defaults for GIT_INDEX_FILE and
GIT_OBJECT_DIRECTORY are derived.  When GIT_DIR is not defined,
it defaults to ".git".  GIT_INDEX_FILE defaults to
"$GIT_DIR/index" and GIT_OBJECT_DIRECTORY defaults to
"$GIT_DIR/objects".

Special thanks for ideas and discussions go to Petr Baudis and
Daniel Barkalow.  Bugs are mine ;-)

Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Junio C Hamano
2005-05-09 22:57:58 -07:00
parent d19938ab60
commit 8ac069ac0a
7 changed files with 81 additions and 35 deletions
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11
init-db.c
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@ -27,11 +27,12 @@ int main(int argc, char **argv)
char *path;
int len, i;
safe_create_dir(".git");
sha1_dir = gitenv(DB_ENVIRONMENT);
if (!sha1_dir) {
sha1_dir = DEFAULT_DB_ENVIRONMENT;
sha1_dir = get_object_directory();
if (!gitenv(DB_ENVIRONMENT) && !gitenv(GIT_DIR_ENVIRONMENT)) {
/* We create leading paths only when we fall back
* to local .git/objects, at least for now.
*/
safe_create_dir(DEFAULT_GIT_DIR_ENVIRONMENT);
fprintf(stderr, "defaulting to local storage area\n");
}
len = strlen(sha1_dir);