char *buffer;
};
+extern int save_commit_buffer;
extern const char *commit_type;
struct commit *lookup_commit(const unsigned char *sha1);
struct commit *lookup_commit_reference(const unsigned char *sha1);
+struct commit *lookup_commit_reference_gently(const unsigned char *sha1,
+ int quiet);
int parse_commit_buffer(struct commit *item, void *buffer, unsigned long size);