Function is_writing_gitmodules_ok

submodule.c:74–79

* Check if the .gitmodules file is safe to write. * * Writing to the .gitmodules file requires that the file exists in the * working tree or, if it doesn't, that a brand new .gitmodules file is going * to be created (i.e. it's neither in the index nor in the current branch). * * It is not safe to write to .gitmodules if it's not in the working tree but * it is in the index or in the current

 * (and staging them) would blindly overwrite ALL the old content.
 */
int is_writing_gitmodules_ok(void)
{
	struct object_id oid;
	return file_exists(GITMODULES_FILE) ||
		(repo_get_oid(the_repository, GITMODULES_INDEX, &oid) < 0 && repo_get_oid(the_repository, GITMODULES_HEAD, &oid) < 0);
}

/*
 * Check if the .gitmodules file has unstaged modifications.  This must be