text: #include "clar_libgit2.h"
  #include "checkout_helpers.h"
  
  #include "git2/checkout.h"
  #include "repository.h"
  #include "buffer.h"
  #include "fileops.h"
  
  static git_repository *g_repo;
  static git_checkout_opts g_opts;
  static git_object *g_object;
  
  void test_checkout_tree__initialize(void)
  {
  	g_repo = cl_git_sandbox_init("testrepo");
  
  	GIT_INIT_STRUCTURE(&g_opts, GIT_CHECKOUT_OPTS_VERSION);
  	g_opts.checkout_strategy = GIT_CHECKOUT_SAFE_CREATE;
  }
  
  void test_checkout_tree__cleanup(void)
  {
  	git_object_free(g_object);
  	g_object = NULL;
  
  	cl_git_sandbox_cleanup();
  
  	if (git_path_isdir("alternative"))
  		git_futils_rmdir_r("alternative", NULL, GIT_RMDIR_REMOVE_FILES);
  }
  
  void test_checkout_tree__cannot_checkout_a_non_treeish(void)
  {
  	/* blob */
  	cl_git_pass(git_revparse_single(&g_object, g_repo, "a71586c1dfe8a71c6cbf6c129f404c5642ff31bd"));
  	cl_git_fail(git_checkout_tree(g_repo, g_object, NULL));
  }
  
  void test_checkout_tree__can_checkout_a_subdirectory_from_a_commit(void)
  {
  	char *entries[] = { "ab/de/" };
  
  	g_opts.paths.strings = entries;
  	g_opts.paths.count = 1;
  
  	cl_git_pass(git_revparse_single(&g_object, g_repo, "subtrees"));
  
  	cl_assert_equal_i(false, git_path_isdir("./testrepo/ab/"));
  
  	cl_git_pass(git_checkout_tree(g_repo, g_object, &g_opts));
  
  	cl_assert_equal_i(true, git_path_isfile("./testrepo/ab/de/2.txt"));
  	cl_assert_equal_i(true, git_path_isfile("./testrepo/ab/de/fgh/1.txt"));
  }
  
  void test_checkout_tree__can_checkout_and_remove_directory(void)
  {
  	cl_assert_equal_i(false, git_path_isdir("./testrepo/ab/"));
  
  	/* Checkout brach "subtrees" and update HEAD, so that HEAD matches the
  	 * current working tree
  	 */
  	cl_git_pass(git_revparse_single(&g_object, g_repo, "subtrees"));
  	cl_git_pass(git_checkout_tree(g_repo, g_object, &g_opts));
  
  	cl_git_pass(git_repository_set_head(g_repo, "refs/heads/subtrees"));
  
  	cl_assert_equal_i(true, git_path_isdir("./testrepo/ab/"));
  	cl_assert_equal_i(true, git_path_isfile("./testrepo/ab/de/2.txt"));
  	cl_assert_equal_i(true, git_path_isfile("./testrepo/ab/de/fgh/1.txt"));
  
  	git_object_free(g_object);
  	g_object = NULL;
  
  	/* Checkout brach "master" and update HEAD, so that HEAD matches the
  	 * current working tree
  	 */
  	cl_git_pass(git_revparse_single(&g_object, g_repo, "master"));
  	cl_git_pass(git_checkout_tree(g_repo, g_object, &g_opts));
  
  	cl_git_pass(git_repository_set_head(g_repo, "refs/heads/master"));
  
  	/* This directory should no longer exist */
  	cl_assert_equal_i(false, git_path_isdir("./testrepo/ab/"));
  }
  
  void test_checkout_tree__can_checkout_a_subdirectory_from_a_subtree(void)
  {
  	char *entries[] = { "de/" };
  
  	g_opts.paths.strings = entries;
  	g_opts.paths.count = 1;
  
  	cl_git_pass(git_revparse_single(&g_object, g_repo, "subtrees:ab"));
  
  	cl_assert_equal_i(false, git_path_isdir("./testrepo/de/"));
  
  	cl_git_pass(git_checkout_tree(g_repo, g_object, &g_opts));
  
  	cl_assert_equal_i(true, git_path_isfile("./testrepo/de/2.txt"));
  	cl_assert_equal_i(true, git_path_isfile("./testrepo/de/fgh/1.txt"));
  }
  
  static void progress(const char *path, size_t cur, size_t tot, void *payload)
  {
  	bool *was_called = (bool*)payload;
  	GIT_UNUSED(path); GIT_UNUSED(cur); GIT_UNUSED(tot);
  	*was_called = true;
  }
  
  void test_checkout_tree__calls_progress_callback(void)
  {
  	bool was_called = 0;
  
  	g_opts.progress_cb = progress;
  	g_opts.progress_payload = &was_called;
  
  	cl_git_pass(git_revparse_single(&g_object, g_repo, "master"));
  
  	cl_git_pass(git_checkout_tree(g_repo, g_object, &g_opts));
  
  	cl_assert_equal_i(was_called, true);
  }
  
  void test_checkout_tree__doesnt_write_unrequested_files_to_worktree(void)
  {
  	git_oid master_oid;
  	git_oid chomped_oid;
  	git_commit* p_master_commit;
  	git_commit* p_chomped_commit;
  	git_checkout_opts opts = GIT_CHECKOUT_OPTS_INIT;
  
  	git_oid_fromstr(&master_oid, "a65fedf39aefe402d3bb6e24df4d4f5fe4547750");
  	git_oid_fromstr(&chomped_oid, "e90810b8df3e80c413d903f631643c716887138d");
  	cl_git_pass(git_commit_lookup(&p_master_commit, g_repo, &master_oid));
  	cl_git_pass(git_commit_lookup(&p_chomped_commit, g_repo, &chomped_oid));
  
  	/* GIT_CHECKOUT_NONE should not add any file to the working tree from the
  	 * index as it is supposed to be a dry run.
  	 */
  	opts.checkout_strategy = GIT_CHECKOUT_NONE;
  	git_checkout_tree(g_repo, (git_object*)p_chomped_commit, &opts);
  	cl_assert_equal_i(false, git_path_isfile("testrepo/readme.txt"));
  
  	git_commit_free(p_master_commit);
  	git_commit_free(p_chomped_commit);
  }
  
  void test_checkout_tree__can_switch_branches(void)
  {
  	git_checkout_opts opts = GIT_CHECKOUT_OPTS_INIT;
  	git_oid oid;
  	git_object *obj = NULL;
  
  	assert_on_branch(g_repo, "master");
  
  	/* do first checkout with FORCE because we don't know if testrepo
  	 * base data is clean for a checkout or not
  	 */
  	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
  
  	cl_git_pass(git_reference_name_to_id(&oid, g_repo, "refs/heads/dir"));
  	cl_git_pass(git_object_lookup(&obj, g_repo, &oid, GIT_OBJ_ANY));
  
  	cl_git_pass(git_checkout_tree(g_repo, obj, &opts));
  	cl_git_pass(git_repository_set_head(g_repo, "refs/heads/dir"));
  
  	cl_assert(git_path_isfile("testrepo/README"));
  	cl_assert(git_path_isfile("testrepo/branch_file.txt"));
  	cl_assert(git_path_isfile("testrepo/new.txt"));
  	cl_assert(git_path_isfile("testrepo/a/b.txt"));
  
  	cl_assert(!git_path_isdir("testrepo/ab"));
  
  	assert_on_branch(g_repo, "dir");
  
  	git_object_free(obj);
  
  	/* do second checkout safe because we should be clean after first */
  	opts.checkout_strategy = GIT_CHECKOUT_SAFE;
  
  	cl_git_pass(git_reference_name_to_id(&oid, g_repo, "refs/heads/subtrees"));
  	cl_git_pass(git_object_lookup(&obj, g_repo, &oid, GIT_OBJ_ANY));
  
  	cl_git_pass(git_checkout_tree(g_repo, obj, &opts));
  	cl_git_pass(git_repository_set_head(g_repo, "refs/heads/subtrees"));
  
  	cl_assert(git_path_isfile("testrepo/README"));
  	cl_assert(git_path_isfile("testrepo/branch_file.txt"));
  	cl_assert(git_path_isfile("testrepo/new.txt"));
  	cl_assert(git_path_isfile("testrepo/ab/4.txt"));
  	cl_assert(git_path_isfile("testrepo/ab/c/3.txt"));
  	cl_assert(git_path_isfile("testrepo/ab/de/2.txt"));
  	cl_assert(git_path_isfile("testrepo/ab/de/fgh/1.txt"));
  
  	cl_assert(!git_path_isdir("testrepo/a"));
  
  	assert_on_branch(g_repo, "subtrees");
  
  	git_object_free(obj);
  }
  
  void test_checkout_tree__can_remove_untracked(void)
  {
  	git_checkout_opts opts = GIT_CHECKOUT_OPTS_INIT;
  
  	opts.checkout_strategy = GIT_CHECKOUT_SAFE | GIT_CHECKOUT_REMOVE_UNTRACKED;
  
  	cl_git_mkfile("testrepo/untracked_file", "as you wish");
  	cl_assert(git_path_isfile("testrepo/untracked_file"));
  
  	cl_git_pass(git_checkout_head(g_repo, &opts));
  
  	cl_assert(!git_path_isfile("testrepo/untracked_file"));
  }
  
  void test_checkout_tree__can_remove_ignored(void)
  {
  	git_checkout_opts opts = GIT_CHECKOUT_OPTS_INIT;
  	int ignored = 0;
  
  	opts.checkout_strategy = GIT_CHECKOUT_SAFE | GIT_CHECKOUT_REMOVE_IGNORED;
  
  	cl_git_mkfile("testrepo/ignored_file", "as you wish");
  
  	cl_git_pass(git_ignore_add_rule(g_repo, "ignored_file\n"));
  
  	cl_git_pass(git_ignore_path_is_ignored(&ignored, g_repo, "ignored_file"));
  	cl_assert_equal_i(1, ignored);
  
  	cl_assert(git_path_isfile("testrepo/ignored_file"));
  
  	cl_git_pass(git_checkout_head(g_repo, &opts));
  
  	cl_assert(!git_path_isfile("testrepo/ignored_file"));
  }
  
  void test_checkout_tree__can_update_only(void)
  {
  	git_checkout_opts opts = GIT_CHECKOUT_OPTS_INIT;
  	git_oid oid;
  	git_object *obj = NULL;
  
  	/* first let's get things into a known state - by checkout out the HEAD */
  
  	assert_on_branch(g_repo, "master");
  
  	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
  	cl_git_pass(git_checkout_head(g_repo, &opts));
  
  	cl_assert(!git_path_isdir("testrepo/a"));
  
  	check_file_contents_nocr("testrepo/branch_file.txt", "hi\nbye!\n");
  
  	/* now checkout branch but with update only */
  
  	opts.checkout_strategy = GIT_CHECKOUT_SAFE | GIT_CHECKOUT_UPDATE_ONLY;
  
  	cl_git_pass(git_reference_name_to_id(&oid, g_repo, "refs/heads/dir"));
  	cl_git_pass(git_object_lookup(&obj, g_repo, &oid, GIT_OBJ_ANY));
  
  	cl_git_pass(git_checkout_tree(g_repo, obj, &opts));
  	cl_git_pass(git_repository_set_head(g_repo, "refs/heads/dir"));
  
  	assert_on_branch(g_repo, "dir");
  
  	/* this normally would have been created (which was tested separately in
  	 * the test_checkout_tree__can_switch_branches test), but with
  	 * UPDATE_ONLY it will not have been created.
  	 */
  	cl_assert(!git_path_isdir("testrepo/a"));
  
  	/* but this file still should have been updated */
  	check_file_contents_nocr("testrepo/branch_file.txt", "hi\n");
  
  	git_object_free(obj);
  }
  
  void test_checkout_tree__can_checkout_with_pattern(void)
  {
  	char *entries[] = { "[l-z]*.txt" };
  
  	/* reset to beginning of history (i.e. just a README file) */
  
  	g_opts.checkout_strategy =
  		GIT_CHECKOUT_FORCE | GIT_CHECKOUT_REMOVE_UNTRACKED;
  
  	cl_git_pass(git_revparse_single(&g_object, g_repo, "8496071c1b46c854b31185ea97743be6a8774479"));
  
  	cl_git_pass(git_checkout_tree(g_repo, g_object, &g_opts));
  	cl_git_pass(
  		git_repository_set_head_detached(g_repo, git_object_id(g_object)));
  
  	git_object_free(g_object);
  	g_object = NULL;
  
  	cl_assert(git_path_exists("testrepo/README"));
  	cl_assert(!git_path_exists("testrepo/branch_file.txt"));
  	cl_assert(!git_path_exists("testrepo/link_to_new.txt"));
  	cl_assert(!git_path_exists("testrepo/new.txt"));
  
  	/* now to a narrow patterned checkout */
  
  	g_opts.checkout_strategy = GIT_CHECKOUT_SAFE_CREATE;
  	g_opts.paths.strings = entries;
  	g_opts.paths.count = 1;
  
  	cl_git_pass(git_revparse_single(&g_object, g_repo, "refs/heads/master"));
  
  	cl_git_pass(git_checkout_tree(g_repo, g_object, &g_opts));
  
  	cl_assert(git_path_exists("testrepo/README"));
  	cl_assert(!git_path_exists("testrepo/branch_file.txt"));
  	cl_assert(git_path_exists("testrepo/link_to_new.txt"));
  	cl_assert(git_path_exists("testrepo/new.txt"));
  }
  
  void test_checkout_tree__can_disable_pattern_match(void)
  {
  	char *entries[] = { "b*.txt" };
  
  	/* reset to beginning of history (i.e. just a README file) */
  
  	g_opts.checkout_strategy =
  		GIT_CHECKOUT_FORCE | GIT_CHECKOUT_REMOVE_UNTRACKED;
  
  	cl_git_pass(git_revparse_single(&g_object, g_repo, "8496071c1b46c854b31185ea97743be6a8774479"));
  
  	cl_git_pass(git_checkout_tree(g_repo, g_object, &g_opts));
  	cl_git_pass(
  		git_repository_set_head_detached(g_repo, git_object_id(g_object)));
  
  	git_object_free(g_object);
  	g_object = NULL;
  
  	cl_assert(!git_path_isfile("testrepo/branch_file.txt"));
  
  	/* now to a narrow patterned checkout, but disable pattern */
  
  	g_opts.checkout_strategy =
  		GIT_CHECKOUT_SAFE_CREATE | GIT_CHECKOUT_DISABLE_PATHSPEC_MATCH;
  	g_opts.paths.strings = entries;
  	g_opts.paths.count = 1;
  
  	cl_git_pass(git_revparse_single(&g_object, g_repo, "refs/heads/master"));
  
  	cl_git_pass(git_checkout_tree(g_repo, g_object, &g_opts));
  
  	cl_assert(!git_path_isfile("testrepo/branch_file.txt"));
  
  	/* let's try that again, but allow the pattern match */
  
  	g_opts.checkout_strategy = GIT_CHECKOUT_SAFE_CREATE;
  
  	cl_git_pass(git_checkout_tree(g_repo, g_object, &g_opts));
  
  	cl_assert(git_path_isfile("testrepo/branch_file.txt"));
  }
  
  void assert_conflict(
  	const char *entry_path,
  	const char *new_content,
  	const char *parent_sha,
  	const char *commit_sha)
  {
  	git_index *index;
  	git_object *hack_tree;
  	git_reference *branch, *head;
  	git_buf file_path = GIT_BUF_INIT;
  
  	cl_git_pass(git_repository_index(&index, g_repo));
  
  	/* Create a branch pointing at the parent */
  	cl_git_pass(git_revparse_single(&g_object, g_repo, parent_sha));
  	cl_git_pass(git_branch_create(&branch, g_repo,
  		"potential_conflict", (git_commit *)g_object, 0));
  
  	/* Make HEAD point to this branch */
  	cl_git_pass(git_reference_symbolic_create(
  		&head, g_repo, "HEAD", git_reference_name(branch), 1));
  	git_reference_free(head);
  	git_reference_free(branch);
  
  	/* Checkout the parent */
  	g_opts.checkout_strategy = GIT_CHECKOUT_FORCE;
  	cl_git_pass(git_checkout_tree(g_repo, g_object, &g_opts));
  
  	/* Hack-ishy workaound to ensure *all* the index entries
  	 * match the content of the tree
  	 */
  	cl_git_pass(git_object_peel(&hack_tree, g_object, GIT_OBJ_TREE));
  	cl_git_pass(git_index_read_tree(index, (git_tree *)hack_tree));
  	git_object_free(hack_tree);
  	git_object_free(g_object);
  	g_object = NULL;
  
  	/* Create a conflicting file */
  	cl_git_pass(git_buf_joinpath(&file_path, "./testrepo", entry_path));
  	cl_git_mkfile(git_buf_cstr(&file_path), new_content);
  	git_buf_free(&file_path);
  
  	/* Trying to checkout the original commit */
  	cl_git_pass(git_revparse_single(&g_object, g_repo, commit_sha));
  
  	g_opts.checkout_strategy = GIT_CHECKOUT_SAFE;
  	cl_assert_equal_i(
  		GIT_EMERGECONFLICT, git_checkout_tree(g_repo, g_object, &g_opts));
  
  	/* Stage the conflicting change */
  	cl_git_pass(git_index_add_bypath(index, entry_path));
  	cl_git_pass(git_index_write(index));
  	git_index_free(index);
  
  	cl_assert_equal_i(
  		GIT_EMERGECONFLICT, git_checkout_tree(g_repo, g_object, &g_opts));
  }
  
  void test_checkout_tree__checking_out_a_conflicting_type_change_returns_EMERGECONFLICT(void)
  {
  	/*
  	 * 099faba adds a symlink named 'link_to_new.txt'
  	 * a65fedf is the parent of 099faba
  	 */
  
  	assert_conflict("link_to_new.txt", "old.txt", "a65fedf", "099faba");
  }
  
  void test_checkout_tree__checking_out_a_conflicting_type_change_returns_EMERGECONFLICT_2(void)
  {
  	/*
  	 * cf80f8d adds a directory named 'a/'
  	 * a4a7dce is the parent of cf80f8d
  	 */
  
  	assert_conflict("a", "hello\n", "a4a7dce", "cf80f8d");
  }
  
  void test_checkout_tree__checking_out_a_conflicting_content_change_returns_EMERGECONFLICT(void)
  {
  	/*
  	 * c47800c adds a symlink named 'branch_file.txt'
  	 * 5b5b025 is the parent of 763d71a
  	 */
  
  	assert_conflict("branch_file.txt", "hello\n", "5b5b025", "c47800c");
  }
  
  void test_checkout_tree__donot_update_deleted_file_by_default(void)
  {
  	git_checkout_opts opts = GIT_CHECKOUT_OPTS_INIT;
  	git_oid old_id, new_id;
  	git_commit *old_commit = NULL, *new_commit = NULL;
  	git_index *index = NULL;
  	checkout_counts ct;
  
  	opts.checkout_strategy = GIT_CHECKOUT_SAFE;
  
  	memset(&ct, 0, sizeof(ct));
  	opts.notify_flags = GIT_CHECKOUT_NOTIFY_ALL;
  	opts.notify_cb = checkout_count_callback;
  	opts.notify_payload = &ct;
  
  	cl_git_pass(git_repository_index(&index, g_repo));
  
  	cl_git_pass(git_oid_fromstr(&old_id, "be3563ae3f795b2b4353bcce3a527ad0a4f7f644"));
  	cl_git_pass(git_commit_lookup(&old_commit, g_repo, &old_id));
  	cl_git_pass(git_reset(g_repo, (git_object *)old_commit, GIT_RESET_HARD));
  
  	cl_git_pass(p_unlink("testrepo/branch_file.txt"));
  	cl_git_pass(git_index_remove_bypath(index ,"branch_file.txt"));
  	cl_git_pass(git_index_write(index));
  
  	cl_assert(!git_path_exists("testrepo/branch_file.txt"));
  
  	cl_git_pass(git_oid_fromstr(&new_id, "099fabac3a9ea935598528c27f866e34089c2eff"));
  	cl_git_pass(git_commit_lookup(&new_commit, g_repo, &new_id));
  
  
  	cl_git_fail(git_checkout_tree(g_repo, (git_object *)new_commit, &opts));
  
  	cl_assert_equal_i(1, ct.n_conflicts);
  	cl_assert_equal_i(1, ct.n_updates);
  
  	git_commit_free(old_commit);
  	git_commit_free(new_commit);
  	git_index_free(index);
  }
  
  void test_checkout_tree__can_checkout_with_last_workdir_item_missing(void)
  {
  	git_index *index = NULL;
  	git_checkout_opts opts = GIT_CHECKOUT_OPTS_INIT;
  	git_oid tree_id, commit_id;
  	git_tree *tree = NULL;
  	git_commit *commit = NULL;
  
  	git_repository_index(&index, g_repo);
  
  	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
  
  	cl_git_pass(git_reference_name_to_id(&commit_id, g_repo, "refs/heads/master"));
  	cl_git_pass(git_commit_lookup(&commit, g_repo, &commit_id));
  
  	cl_git_pass(git_checkout_tree(g_repo, (git_object *)commit, &opts));
  	cl_git_pass(git_repository_set_head(g_repo, "refs/heads/master"));
  
  	cl_git_pass(p_mkdir("./testrepo/this-is-dir", 0777));
  	cl_git_mkfile("./testrepo/this-is-dir/contained_file", "content\n");
  
  	cl_git_pass(git_index_add_bypath(index, "this-is-dir/contained_file"));
  	git_index_write_tree(&tree_id, index);
  	cl_git_pass(git_tree_lookup(&tree, g_repo, &tree_id));
  
  	cl_git_pass(p_unlink("./testrepo/this-is-dir/contained_file"));
  
  	opts.checkout_strategy = GIT_CHECKOUT_SAFE;
  
  	opts.checkout_strategy = 1;
  	git_checkout_tree(g_repo, (git_object *)tree, &opts);
  
  	git_tree_free(tree);
  	git_commit_free(commit);
  	git_index_free(index);
  }
  
  void test_checkout_tree__issue_1397(void)
  {
  	git_checkout_opts opts = GIT_CHECKOUT_OPTS_INIT;
  	const char *partial_oid = "8a7ef04";
  	git_object *tree = NULL;
  
  	test_checkout_tree__cleanup(); /* cleanup default checkout */
  
  	g_repo = cl_git_sandbox_init("issue_1397");
  
  	cl_repo_set_bool(g_repo, "core.autocrlf", true);
  
  	cl_git_pass(git_revparse_single(&tree, g_repo, partial_oid));
  
  	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
  
  	cl_git_pass(git_checkout_tree(g_repo, tree, &opts));
  
  	check_file_contents("./issue_1397/crlf_file.txt", "first line\r\nsecond line\r\nboth with crlf");
  
  	git_object_free(tree);
  }
  
  void test_checkout_tree__can_write_to_empty_dirs(void)
  {
  	git_checkout_opts opts = GIT_CHECKOUT_OPTS_INIT;
  	git_oid oid;
  	git_object *obj = NULL;
  
  	assert_on_branch(g_repo, "master");
  
  	cl_git_pass(p_mkdir("testrepo/a", 0777));
  
  	/* do first checkout with FORCE because we don't know if testrepo
  	 * base data is clean for a checkout or not
  	 */
  	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
  
  	cl_git_pass(git_reference_name_to_id(&oid, g_repo, "refs/heads/dir"));
  	cl_git_pass(git_object_lookup(&obj, g_repo, &oid, GIT_OBJ_ANY));
  
  	cl_git_pass(git_checkout_tree(g_repo, obj, &opts));
  
  	cl_assert(git_path_isfile("testrepo/a/b.txt"));
  
  	git_object_free(obj);
  }
  
  void test_checkout_tree__fails_when_dir_in_use(void)
  {
  #ifdef GIT_WIN32
  	git_checkout_opts opts = GIT_CHECKOUT_OPTS_INIT;
  	git_oid oid;
  	git_object *obj = NULL;
  
  	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
  
  	cl_git_pass(git_reference_name_to_id(&oid, g_repo, "refs/heads/dir"));
  	cl_git_pass(git_object_lookup(&obj, g_repo, &oid, GIT_OBJ_ANY));
  
  	cl_git_pass(git_checkout_tree(g_repo, obj, &opts));
  
  	cl_assert(git_path_isfile("testrepo/a/b.txt"));
  
  	git_object_free(obj);
  
  	cl_git_pass(p_chdir("testrepo/a"));
  
  	cl_git_pass(git_reference_name_to_id(&oid, g_repo, "refs/heads/master"));
  	cl_git_pass(git_object_lookup(&obj, g_repo, &oid, GIT_OBJ_ANY));
  
  	cl_git_fail(git_checkout_tree(g_repo, obj, &opts));
  
  	cl_git_pass(p_chdir("../.."));
  
  	cl_assert(git_path_is_empty_dir("testrepo/a"));
  
  	git_object_free(obj);
  #endif
  }
  
  void test_checkout_tree__can_continue_when_dir_in_use(void)
  {
  #ifdef GIT_WIN32
  	git_checkout_opts opts = GIT_CHECKOUT_OPTS_INIT;
  	git_oid oid;
  	git_object *obj = NULL;
  
  	opts.checkout_strategy = GIT_CHECKOUT_FORCE |
  		GIT_CHECKOUT_SKIP_LOCKED_DIRECTORIES;
  
  	cl_git_pass(git_reference_name_to_id(&oid, g_repo, "refs/heads/dir"));
  	cl_git_pass(git_object_lookup(&obj, g_repo, &oid, GIT_OBJ_ANY));
  
  	cl_git_pass(git_checkout_tree(g_repo, obj, &opts));
  
  	cl_assert(git_path_isfile("testrepo/a/b.txt"));
  
  	git_object_free(obj);
  
  	cl_git_pass(p_chdir("testrepo/a"));
  
  	cl_git_pass(git_reference_name_to_id(&oid, g_repo, "refs/heads/master"));
  	cl_git_pass(git_object_lookup(&obj, g_repo, &oid, GIT_OBJ_ANY));
  
  	cl_git_pass(git_checkout_tree(g_repo, obj, &opts));
  
  	cl_git_pass(p_chdir("../.."));
  
  	cl_assert(git_path_is_empty_dir("testrepo/a"));
  
  	git_object_free(obj);
  #endif
  }
  
  void test_checkout_tree__target_directory_from_bare(void)
  {
  	git_checkout_opts opts = GIT_CHECKOUT_OPTS_INIT;
  	git_oid oid;
  	checkout_counts cts;
  	memset(&cts, 0, sizeof(cts));
  
  	test_checkout_tree__cleanup(); /* cleanup default checkout */
  
  	g_repo = cl_git_sandbox_init("testrepo.git");
  	cl_assert(git_repository_is_bare(g_repo));
  
  	opts.checkout_strategy = GIT_CHECKOUT_SAFE_CREATE;
  
  	opts.notify_flags = GIT_CHECKOUT_NOTIFY_ALL;
  	opts.notify_cb = checkout_count_callback;
  	opts.notify_payload = &cts;
  
  	cl_git_pass(git_reference_name_to_id(&oid, g_repo, "HEAD"));
  	cl_git_pass(git_object_lookup(&g_object, g_repo, &oid, GIT_OBJ_ANY));
  
  	cl_git_fail(git_checkout_tree(g_repo, g_object, &opts));
  
  	opts.target_directory = "alternative";
  	cl_assert(!git_path_isdir("alternative"));
  
  	cl_git_pass(git_checkout_tree(g_repo, g_object, &opts));
  
  	cl_assert_equal_i(0, cts.n_untracked);
  	cl_assert_equal_i(0, cts.n_ignored);
  	cl_assert_equal_i(3, cts.n_updates);
  
  	check_file_contents_nocr("./alternative/README", "hey there\n");
  	check_file_contents_nocr("./alternative/branch_file.txt", "hi\nbye!\n");
  	check_file_contents_nocr("./alternative/new.txt", "my new file\n");
  
  	cl_git_pass(git_futils_rmdir_r(
  		"alternative", NULL, GIT_RMDIR_REMOVE_FILES));
  }
  
  void test_checkout_tree__extremely_long_file_name(void)
  {
  	// A utf-8 string with 83 characters, but 249 bytes.
  	const char *longname = "\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97\xe5\x8f\x97";
  	char path[1024];
  
  	g_opts.checkout_strategy = GIT_CHECKOUT_FORCE;
  	cl_git_pass(git_revparse_single(&g_object, g_repo, "long-file-name"));
  	cl_git_pass(git_checkout_tree(g_repo, g_object, &g_opts));
  
  	sprintf(path, "testrepo/%s.txt", longname);
  	cl_assert(git_path_exists(path));
  
  	git_object_free(g_object);
  	cl_git_pass(git_revparse_single(&g_object, g_repo, "master"));
  	cl_git_pass(git_checkout_tree(g_repo, g_object, &g_opts));
  	cl_assert(!git_path_exists(path));
  }
  
  static void create_conflict(void)
  {
  	git_index *index;
  	git_index_entry entry;
  
  	cl_git_pass(git_repository_index(&index, g_repo));
  
  	memset(&entry, 0x0, sizeof(git_index_entry));
  	entry.mode = 0100644;
  	entry.flags = 1 << GIT_IDXENTRY_STAGESHIFT;
  	git_oid_fromstr(&entry.oid, "d427e0b2e138501a3d15cc376077a3631e15bd46");
  	entry.path = "conflicts.txt";
  	cl_git_pass(git_index_add(index, &entry));
  
  	entry.flags = 2 << GIT_IDXENTRY_STAGESHIFT;
  	git_oid_fromstr(&entry.oid, "ee3fa1b8c00aff7fe02065fdb50864bb0d932ccf");
  	cl_git_pass(git_index_add(index, &entry));
  
  	entry.flags = 3 << GIT_IDXENTRY_STAGESHIFT;
  	git_oid_fromstr(&entry.oid, "2bd0a343aeef7a2cf0d158478966a6e587ff3863");
  	cl_git_pass(git_index_add(index, &entry));
  
  	git_index_write(index);
  	git_index_free(index);
  }
  
  void test_checkout_tree__fails_when_conflicts_exist_in_index(void)
  {
  	git_checkout_opts opts = GIT_CHECKOUT_OPTS_INIT;
  	git_oid oid;
  	git_object *obj = NULL;
  
  	opts.checkout_strategy = GIT_CHECKOUT_SAFE;
  
  	cl_git_pass(git_reference_name_to_id(&oid, g_repo, "HEAD"));
  	cl_git_pass(git_object_lookup(&obj, g_repo, &oid, GIT_OBJ_ANY));
  
  	create_conflict();
  
  	cl_git_fail(git_checkout_tree(g_repo, obj, &opts));
  
  	git_object_free(obj);
  }
  