get_short_sha1(): correctly disambiguate type-limited abbreviation

diff --git a/cache.h b/cache.h
index c8d6406bca178d7d203bdf4f7fac19873e6c3bfc..63388780a008236b3888af553007cc4329ec32b1 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -828,6 +828,9 @@ extern int get_sha1_blob(const char *str, unsigned char *sha1);
 extern void maybe_die_on_misspelt_object_name(const char *name, const char *prefix);
 extern int get_sha1_with_context(const char *str, unsigned flags, unsigned char *sha1, struct object_context *orc);
 
+typedef int each_abbrev_fn(const unsigned char *sha1, void *);
+extern int for_each_abbrev(const char *prefix, each_abbrev_fn, void *);
+
 /*
  * Try to read a SHA1 in hexadecimal format from the 40 characters
  * starting at hex.  Write the 20-byte result to sha1 in binary form.