Function set_git_work_tree

setup.c:1904–1920

* Note. This works only before you used a work tree. This was added * primarily to support git-clone to work in a new repository it just * created, and is not meant to flip between different work trees. */

 * created, and is not meant to flip between different work trees.
 */
void set_git_work_tree(struct repository *repo, const char *new_work_tree)
{
	if (repo->worktree_initialized) {
		struct strbuf realpath = STRBUF_INIT;

		strbuf_realpath(&realpath, new_work_tree, 1);
		new_work_tree = realpath.buf;
		if (strcmp(new_work_tree, repo->worktree))
			die("internal error: work tree has already been set\n"
			    "Current worktree: %s\nNew worktree: %s",
			    repo->worktree, new_work_tree);
		strbuf_release(&realpath);
		return;
	}
	repo->worktree_initialized = true;
	repo_set_worktree(repo, new_work_tree);
}

const char *setup_git_directory_gently(struct repository *repo, int *nongit_ok)
{