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change git_config() return value to void

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Currently `git_config()` returns an integer signifying an error code.
During rewrites of the function most of the code was shifted to
`git_config_with_options()`. `git_config_with_options()` normally
returns positive values if its `config_source` parameter is set as NULL,
as most errors are fatal, and non-fatal potential errors are guarded
by "if" statements that are entered only when no error is possible.

Still a negative value can be returned in case of race condition between
`access_or_die()` & `git_config_from_file()`. Also, all callers of
`git_config()` ignore the return value except for one case in branch.c.

Change `git_config()` return value to void and make it die if it receives
a negative value from `git_config_with_options()`.

Original-patch-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Tanay Abhra <tanayabh@gmail.com>
Reviewed-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Tanay Abhra
2014-08-07 04:59:15 -07:00
committed by Junio C Hamano
parent 3df8fd625f
commit aace438502
3 changed files with 16 additions and 7 deletions
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16
config.c
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@ -1232,9 +1232,21 @@ int git_config_with_options(config_fn_t fn, void *data,
return ret;
}
int git_config(config_fn_t fn, void *data)
void git_config(config_fn_t fn, void *data)
{
return git_config_with_options(fn, data, NULL, 1);
if (git_config_with_options(fn, data, NULL, 1) < 0)
/*
* git_config_with_options() normally returns only
* positive values, as most errors are fatal, and
* non-fatal potential errors are guarded by "if"
* statements that are entered only when no error is
* possible.
*
* If we ever encounter a non-fatal error, it means
* something went really wrong and we should stop
* immediately.
*/
die(_("unknown error occured while reading the configuration files"));
}
static struct config_set_element *configset_find_element(struct config_set *cs, const char *key)