alias.c: replace `git_config()` with `git_config_get_string()`

Use `git_config_get_string()` instead of `git_config()` to take advantage of
the config-set API which provides a cleaner control flow.

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>

diff --git a/alias.c b/alias.c
index 758c8671494ad003a6e7e33f8a14b5450311bf54..6aa164a362427ffa5dc8616bcb01aec3f15b462b 100644 (file)
--- a/alias.c
+++ b/alias.c
@@ -1,26 +1,13 @@
 #include "cache.h"
 
-static const char *alias_key;
-static char *alias_val;
-
-static int alias_lookup_cb(const char *k, const char *v, void *cb)
-{
-       const char *name;
-       if (skip_prefix(k, "alias.", &name) && !strcmp(name, alias_key)) {
-               if (!v)
-                       return config_error_nonbool(k);
-               alias_val = xstrdup(v);
-               return 0;
-       }
-       return 0;
-}
-
 char *alias_lookup(const char *alias)
 {
-       alias_key = alias;
-       alias_val = NULL;
-       git_config(alias_lookup_cb, NULL);
-       return alias_val;
+       char *v = NULL;
+       struct strbuf key = STRBUF_INIT;
+       strbuf_addf(&key, "alias.%s", alias);
+       git_config_get_string(key.buf, &v);
+       strbuf_release(&key);
+       return v;
 }
 
 #define SPLIT_CMDLINE_BAD_ENDING 1