Function do_diff_cache

diff-lib.c:657–672

}

int do_diff_cache(const struct object_id *tree_oid, struct diff_options *opt)
{
	struct rev_info revs;

	repo_init_revisions(opt->repo, &revs, NULL);
	copy_pathspec(&revs.prune_data, &opt->pathspec);
	diff_free(&revs.diffopt);
	revs.diffopt = *opt;
	revs.diffopt.no_free = 1;

	if (diff_cache(&revs, tree_oid, NULL, 1))
		exit(128);

	release_revisions(&revs);
	return 0;
}

int index_differs_from(struct repository *r,
		       const char *def, const struct diff_flags *flags,