thodg/libgit2/tests/checkout/index.c

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• Hash : f88e12db
  Author :
  Date : 2020-05-23T09:35:53
  

  checkout::index: free the index

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• tests/checkout/index.c

• #include "clar_libgit2.h"
  #include "checkout_helpers.h"
  
  #include "git2/checkout.h"
  #include "futils.h"
  #include "repository.h"
  #include "remote.h"
  #include "repo/repo_helpers.h"
  
  static git_repository *g_repo;
  static git_buf g_global_path = GIT_BUF_INIT;
  
  void test_checkout_index__initialize(void)
  {
  	git_tree *tree;
  
  	g_repo = cl_git_sandbox_init("testrepo");
  
  	cl_git_pass(git_repository_head_tree(&tree, g_repo));
  
  	reset_index_to_treeish((git_object *)tree);
  	git_tree_free(tree);
  
  	cl_git_rewritefile(
  		"./testrepo/.gitattributes",
  		"* text eol=lf\n");
  
  	git_libgit2_opts(GIT_OPT_GET_SEARCH_PATH, GIT_CONFIG_LEVEL_GLOBAL,
  		&g_global_path);
  }
  
  void test_checkout_index__cleanup(void)
  {
  	git_libgit2_opts(GIT_OPT_SET_SEARCH_PATH, GIT_CONFIG_LEVEL_GLOBAL,
  		g_global_path.ptr);
  	git_buf_dispose(&g_global_path);
  
  	cl_git_sandbox_cleanup();
  
  	/* try to remove directories created by tests */
  	cl_fixture_cleanup("alternative");
  	cl_fixture_cleanup("symlink");
  	cl_fixture_cleanup("symlink.git");
  	cl_fixture_cleanup("tmp_global_path");
  }
  
  void test_checkout_index__cannot_checkout_a_bare_repository(void)
  {
  	cl_git_sandbox_cleanup();
  	g_repo = cl_git_sandbox_init("testrepo.git");
  
  	cl_git_fail(git_checkout_index(g_repo, NULL, NULL));
  }
  
  void test_checkout_index__can_create_missing_files(void)
  {
  	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
  
  	cl_assert_equal_i(false, git_path_isfile("./testrepo/README"));
  	cl_assert_equal_i(false, git_path_isfile("./testrepo/branch_file.txt"));
  	cl_assert_equal_i(false, git_path_isfile("./testrepo/new.txt"));
  
  	opts.checkout_strategy = GIT_CHECKOUT_SAFE | GIT_CHECKOUT_RECREATE_MISSING;
  
  	cl_git_pass(git_checkout_index(g_repo, NULL, &opts));
  
  	check_file_contents("./testrepo/README", "hey there\n");
  	check_file_contents("./testrepo/branch_file.txt", "hi\nbye!\n");
  	check_file_contents("./testrepo/new.txt", "my new file\n");
  }
  
  void test_checkout_index__can_remove_untracked_files(void)
  {
  	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
  
  	git_futils_mkdir("./testrepo/dir/subdir/subsubdir", 0755, GIT_MKDIR_PATH);
  	cl_git_mkfile("./testrepo/dir/one", "one\n");
  	cl_git_mkfile("./testrepo/dir/subdir/two", "two\n");
  
  	cl_assert_equal_i(true, git_path_isdir("./testrepo/dir/subdir/subsubdir"));
  
  	opts.checkout_strategy =
  		GIT_CHECKOUT_SAFE |
  		GIT_CHECKOUT_RECREATE_MISSING |
  		GIT_CHECKOUT_REMOVE_UNTRACKED;
  
  	cl_git_pass(git_checkout_index(g_repo, NULL, &opts));
  
  	cl_assert_equal_i(false, git_path_isdir("./testrepo/dir"));
  }
  
  void test_checkout_index__can_disable_pathspec_match(void)
  {
  	char *files_to_checkout[] = { "test10.txt", "test11.txt"};
  	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
  	git_object *objects;
  	git_index *index;
  
  	/* reset to beginning of history (i.e. just a README file) */
  	opts.checkout_strategy = GIT_CHECKOUT_FORCE | GIT_CHECKOUT_REMOVE_UNTRACKED;
  
  	cl_git_pass(git_revparse_single(&objects, g_repo, "8496071c1b46c854b31185ea97743be6a8774479"));
  	cl_git_pass(git_checkout_tree(g_repo, objects, &opts));
  	cl_git_pass(git_repository_set_head_detached(g_repo, git_object_id(objects)));
  	git_object_free(objects);
  
  	cl_git_pass(git_repository_index(&index, g_repo));
  
  	/* We create 4 files and commit them */
  	cl_git_mkfile("testrepo/test9.txt", "original\n");
  	cl_git_mkfile("testrepo/test10.txt", "original\n");
  	cl_git_mkfile("testrepo/test11.txt", "original\n");
  	cl_git_mkfile("testrepo/test12.txt", "original\n");
  
  	cl_git_pass(git_index_add_bypath(index, "test9.txt"));
  	cl_git_pass(git_index_add_bypath(index, "test10.txt"));
  	cl_git_pass(git_index_add_bypath(index, "test11.txt"));
  	cl_git_pass(git_index_add_bypath(index, "test12.txt"));
  	cl_git_pass(git_index_write(index));
  
  	cl_repo_commit_from_index(NULL, g_repo, NULL, 0, "commit our test files");
  
  	/* We modify the content of all 4 of our files */
  	cl_git_rewritefile("testrepo/test9.txt", "modified\n");
  	cl_git_rewritefile("testrepo/test10.txt", "modified\n");
  	cl_git_rewritefile("testrepo/test11.txt", "modified\n");
  	cl_git_rewritefile("testrepo/test12.txt", "modified\n");
  
  	/* We checkout only test10.txt and test11.txt */
  	opts.checkout_strategy =
  		GIT_CHECKOUT_FORCE |
  		GIT_CHECKOUT_DISABLE_PATHSPEC_MATCH;
  	opts.paths.strings = files_to_checkout;
  	opts.paths.count = ARRAY_SIZE(files_to_checkout);
  	cl_git_pass(git_checkout_index(g_repo, NULL, &opts));
  
  	/* The only files that have been reverted to their original content
  	   should be test10.txt and test11.txt */
  	check_file_contents("testrepo/test9.txt", "modified\n");
  	check_file_contents("testrepo/test10.txt", "original\n");
  	check_file_contents("testrepo/test11.txt", "original\n");
  	check_file_contents("testrepo/test12.txt", "modified\n");
  
  	git_index_free(index);
  }
  
  void test_checkout_index__honor_the_specified_pathspecs(void)
  {
  	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
  	char *entries[] = { "*.txt" };
  
  	opts.paths.strings = entries;
  	opts.paths.count = 1;
  
  	cl_assert_equal_i(false, git_path_isfile("./testrepo/README"));
  	cl_assert_equal_i(false, git_path_isfile("./testrepo/branch_file.txt"));
  	cl_assert_equal_i(false, git_path_isfile("./testrepo/new.txt"));
  
  	opts.checkout_strategy = GIT_CHECKOUT_SAFE | GIT_CHECKOUT_RECREATE_MISSING;
  
  	cl_git_pass(git_checkout_index(g_repo, NULL, &opts));
  
  	cl_assert_equal_i(false, git_path_isfile("./testrepo/README"));
  	check_file_contents("./testrepo/branch_file.txt", "hi\nbye!\n");
  	check_file_contents("./testrepo/new.txt", "my new file\n");
  }
  
  void test_checkout_index__honor_the_gitattributes_directives(void)
  {
  	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
  	const char *attributes =
  		"branch_file.txt text eol=crlf\n"
  		"new.txt text eol=lf\n";
  
  	cl_git_mkfile("./testrepo/.gitattributes", attributes);
  	cl_repo_set_bool(g_repo, "core.autocrlf", false);
  
  	opts.checkout_strategy = GIT_CHECKOUT_SAFE | GIT_CHECKOUT_RECREATE_MISSING;
  
  	cl_git_pass(git_checkout_index(g_repo, NULL, &opts));
  
  	check_file_contents("./testrepo/README", "hey there\n");
  	check_file_contents("./testrepo/new.txt", "my new file\n");
  	check_file_contents("./testrepo/branch_file.txt", "hi\r\nbye!\r\n");
  }
  
  void test_checkout_index__honor_coreautocrlf_setting_set_to_true(void)
  {
  #ifdef GIT_WIN32
  	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
  	const char *expected_readme_text = "hey there\r\n";
  
  	cl_git_pass(p_unlink("./testrepo/.gitattributes"));
  	cl_repo_set_bool(g_repo, "core.autocrlf", true);
  
  	opts.checkout_strategy = GIT_CHECKOUT_SAFE | GIT_CHECKOUT_RECREATE_MISSING;
  
  	cl_git_pass(git_checkout_index(g_repo, NULL, &opts));
  
  	check_file_contents("./testrepo/README", expected_readme_text);
  #endif
  }
  
  static void populate_symlink_workdir(void)
  {
  	git_buf path = GIT_BUF_INIT;
  	git_repository *repo;
  	git_remote *origin;
  	git_object *target;
  
  	const char *url = git_repository_path(g_repo);
  
  	cl_git_pass(git_buf_joinpath(&path, clar_sandbox_path(), "symlink.git"));
  	cl_git_pass(git_repository_init(&repo, path.ptr, true));
  	cl_git_pass(git_repository_set_workdir(repo, "symlink", 1));
  
  	/* Delete the `origin` repo (if it exists) so we can recreate it. */
  	git_remote_delete(repo, GIT_REMOTE_ORIGIN);
  
  	cl_git_pass(git_remote_create(&origin, repo, GIT_REMOTE_ORIGIN, url));
  	cl_git_pass(git_remote_fetch(origin, NULL, NULL, NULL));
  	git_remote_free(origin);
  
  	cl_git_pass(git_revparse_single(&target, repo, "remotes/origin/master"));
  	cl_git_pass(git_reset(repo, target, GIT_RESET_HARD, NULL));
  
  	git_object_free(target);
  	git_repository_free(repo);
  	git_buf_dispose(&path);
  }
  
  void test_checkout_index__honor_coresymlinks_default_true(void)
  {
  	char link_data[GIT_PATH_MAX];
  	int link_size = GIT_PATH_MAX;
  
  	cl_must_pass(p_mkdir("symlink", 0777));
  
  	if (!git_path_supports_symlinks("symlink/test"))
  		cl_skip();
  
  #ifdef GIT_WIN32
  	/*
  	 * Windows explicitly requires the global configuration to have
  	 * core.symlinks=true in addition to actual filesystem support.
  	 */
  	create_tmp_global_config("tmp_global_path", "core.symlinks", "true");
  #endif
  
  	populate_symlink_workdir();
  
  	link_size = p_readlink("./symlink/link_to_new.txt", link_data, link_size);
  	cl_assert(link_size >= 0);
  
  	link_data[link_size] = '\0';
  	cl_assert_equal_i(link_size, strlen("new.txt"));
  	cl_assert_equal_s(link_data, "new.txt");
  	check_file_contents("./symlink/link_to_new.txt", "my new file\n");
  }
  
  void test_checkout_index__honor_coresymlinks_default_false(void)
  {
  	cl_must_pass(p_mkdir("symlink", 0777));
  
  #ifndef GIT_WIN32
  	/*
  	 * This test is largely for Windows platforms to ensure that
  	 * we respect an unset core.symlinks even when the platform
  	 * supports symlinks.  Bail entirely on POSIX platforms that
  	 * do support symlinks.
  	 */
  	if (git_path_supports_symlinks("symlink/test"))
  		cl_skip();
  #endif
  
  	populate_symlink_workdir();
  	check_file_contents("./symlink/link_to_new.txt", "new.txt");
  }
  
  void test_checkout_index__coresymlinks_set_to_true_fails_when_unsupported(void)
  {
  	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
  
  	if (git_path_supports_symlinks("testrepo/test")) {
  		cl_skip();
  	}
  
  	cl_repo_set_bool(g_repo, "core.symlinks", true);
  
  	opts.checkout_strategy = GIT_CHECKOUT_SAFE | GIT_CHECKOUT_RECREATE_MISSING;
  	cl_git_fail(git_checkout_index(g_repo, NULL, &opts));
  }
  
  void test_checkout_index__honor_coresymlinks_setting_set_to_true(void)
  {
  	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
  	char link_data[GIT_PATH_MAX];
  	size_t link_size = GIT_PATH_MAX;
  
  	if (!git_path_supports_symlinks("testrepo/test")) {
  		cl_skip();
  	}
  
  	cl_repo_set_bool(g_repo, "core.symlinks", true);
  
  	opts.checkout_strategy = GIT_CHECKOUT_SAFE | GIT_CHECKOUT_RECREATE_MISSING;
  
  	cl_git_pass(git_checkout_index(g_repo, NULL, &opts));
  
  	link_size = p_readlink("./testrepo/link_to_new.txt", link_data, link_size);
  	link_data[link_size] = '\0';
  	cl_assert_equal_i(link_size, strlen("new.txt"));
  	cl_assert_equal_s(link_data, "new.txt");
  	check_file_contents("./testrepo/link_to_new.txt", "my new file\n");
  }
  
  void test_checkout_index__honor_coresymlinks_setting_set_to_false(void)
  {
  	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
  
  	cl_repo_set_bool(g_repo, "core.symlinks", false);
  
  	opts.checkout_strategy = GIT_CHECKOUT_SAFE | GIT_CHECKOUT_RECREATE_MISSING;
  
  	cl_git_pass(git_checkout_index(g_repo, NULL, &opts));
  
  	check_file_contents("./testrepo/link_to_new.txt", "new.txt");
  }
  
  void test_checkout_index__donot_overwrite_modified_file_by_default(void)
  {
  	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
  
  	cl_git_mkfile("./testrepo/new.txt", "This isn't what's stored!");
  
  	/* set this up to not return an error code on conflicts, but it
  	 * still will not have permission to overwrite anything...
  	 */
  	opts.checkout_strategy = GIT_CHECKOUT_SAFE | GIT_CHECKOUT_ALLOW_CONFLICTS;
  
  	cl_git_pass(git_checkout_index(g_repo, NULL, &opts));
  
  	check_file_contents("./testrepo/new.txt", "This isn't what's stored!");
  }
  
  void test_checkout_index__can_overwrite_modified_file(void)
  {
  	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
  
  	cl_git_mkfile("./testrepo/new.txt", "This isn't what's stored!");
  
  	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
  
  	cl_git_pass(git_checkout_index(g_repo, NULL, &opts));
  
  	check_file_contents("./testrepo/new.txt", "my new file\n");
  }
  
  void test_checkout_index__options_disable_filters(void)
  {
  	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
  
  	cl_git_mkfile("./testrepo/.gitattributes", "*.txt text eol=crlf\n");
  
  	opts.checkout_strategy = GIT_CHECKOUT_SAFE | GIT_CHECKOUT_RECREATE_MISSING;
  	opts.disable_filters = false;
  
  	cl_git_pass(git_checkout_index(g_repo, NULL, &opts));
  
  	check_file_contents("./testrepo/new.txt", "my new file\r\n");
  
  	p_unlink("./testrepo/new.txt");
  
  	opts.disable_filters = true;
  	cl_git_pass(git_checkout_index(g_repo, NULL, &opts));
  
  	check_file_contents("./testrepo/new.txt", "my new file\n");
  }
  
  void test_checkout_index__options_dir_modes(void)
  {
  	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
  	struct stat st;
  	git_oid oid;
  	git_commit *commit;
  	mode_t um;
  
  	if (!cl_is_chmod_supported())
  		return;
  
  	cl_git_pass(git_reference_name_to_id(&oid, g_repo, "refs/heads/dir"));
  	cl_git_pass(git_commit_lookup(&commit, g_repo, &oid));
  
  	reset_index_to_treeish((git_object *)commit);
  
  	opts.checkout_strategy = GIT_CHECKOUT_SAFE | GIT_CHECKOUT_RECREATE_MISSING;
  	opts.dir_mode = 0701;
  
  	cl_git_pass(git_checkout_index(g_repo, NULL, &opts));
  
  	/* umask will influence actual directory creation mode */
  	(void)p_umask(um = p_umask(022));
  
  	cl_git_pass(p_stat("./testrepo/a", &st));
  	/* Haiku & Hurd use other mode bits, so we must mask them out */
  	cl_assert_equal_i_fmt(st.st_mode & (S_IFMT | 07777), (GIT_FILEMODE_TREE | 0701) & ~um, "%07o");
  
  	/* File-mode test, since we're on the 'dir' branch */
  	cl_git_pass(p_stat("./testrepo/a/b.txt", &st));
  	cl_assert_equal_i_fmt(st.st_mode & (S_IFMT | 07777), GIT_FILEMODE_BLOB_EXECUTABLE & ~um, "%07o");
  
  	git_commit_free(commit);
  }
  
  void test_checkout_index__options_override_file_modes(void)
  {
  	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
  	struct stat st;
  
  	if (!cl_is_chmod_supported())
  		return;
  
  	opts.checkout_strategy = GIT_CHECKOUT_SAFE | GIT_CHECKOUT_RECREATE_MISSING;
  	opts.file_mode = 0700;
  
  	cl_git_pass(git_checkout_index(g_repo, NULL, &opts));
  
  	cl_git_pass(p_stat("./testrepo/new.txt", &st));
  	cl_assert_equal_i_fmt(st.st_mode & GIT_MODE_PERMS_MASK, 0700, "%07o");
  }
  
  void test_checkout_index__options_open_flags(void)
  {
  	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
  
  	cl_git_mkfile("./testrepo/new.txt", "hi\n");
  
  	opts.checkout_strategy =
  		GIT_CHECKOUT_FORCE | GIT_CHECKOUT_DONT_REMOVE_EXISTING;
  	opts.file_open_flags = O_CREAT | O_RDWR | O_APPEND;
  
  	cl_git_pass(git_checkout_index(g_repo, NULL, &opts));
  
  	check_file_contents("./testrepo/new.txt", "hi\nmy new file\n");
  }
  
  struct notify_data {
  	const char *file;
  	const char *sha;
  };
  
  static int test_checkout_notify_cb(
  	git_checkout_notify_t why,
  	const char *path,
  	const git_diff_file *baseline,
  	const git_diff_file *target,
  	const git_diff_file *workdir,
  	void *payload)
  {
  	struct notify_data *expectations = (struct notify_data *)payload;
  
  	GIT_UNUSED(workdir);
  
  	cl_assert_equal_i(GIT_CHECKOUT_NOTIFY_CONFLICT, why);
  	cl_assert_equal_s(expectations->file, path);
  	cl_assert_equal_i(0, git_oid_streq(&baseline->id, expectations->sha));
  	cl_assert_equal_i(0, git_oid_streq(&target->id, expectations->sha));
  
  	return 0;
  }
  
  void test_checkout_index__can_notify_of_skipped_files(void)
  {
  	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
  	struct notify_data data;
  
  	cl_git_mkfile("./testrepo/new.txt", "This isn't what's stored!");
  
  	/*
  	 * $ git ls-tree HEAD
  	 * 100644 blob a8233120f6ad708f843d861ce2b7228ec4e3dec6    README
  	 * 100644 blob 3697d64be941a53d4ae8f6a271e4e3fa56b022cc    branch_file.txt
  	 * 100644 blob a71586c1dfe8a71c6cbf6c129f404c5642ff31bd    new.txt
  	 */
  	data.file = "new.txt";
  	data.sha = "a71586c1dfe8a71c6cbf6c129f404c5642ff31bd";
  
  	opts.checkout_strategy = GIT_CHECKOUT_SAFE |
  		GIT_CHECKOUT_RECREATE_MISSING |
  		GIT_CHECKOUT_ALLOW_CONFLICTS;
  	opts.notify_flags = GIT_CHECKOUT_NOTIFY_CONFLICT;
  	opts.notify_cb = test_checkout_notify_cb;
  	opts.notify_payload = &data;
  
  	cl_git_pass(git_checkout_index(g_repo, NULL, &opts));
  }
  
  static int dont_notify_cb(
  	git_checkout_notify_t why,
  	const char *path,
  	const git_diff_file *baseline,
  	const git_diff_file *target,
  	const git_diff_file *workdir,
  	void *payload)
  {
  	GIT_UNUSED(why);
  	GIT_UNUSED(path);
  	GIT_UNUSED(baseline);
  	GIT_UNUSED(target);
  	GIT_UNUSED(workdir);
  	GIT_UNUSED(payload);
  
  	cl_assert(false);
  
  	return 0;
  }
  
  void test_checkout_index__wont_notify_of_expected_line_ending_changes(void)
  {
  	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
  
  	cl_git_pass(p_unlink("./testrepo/.gitattributes"));
  	cl_repo_set_bool(g_repo, "core.autocrlf", true);
  
  	cl_git_mkfile("./testrepo/new.txt", "my new file\r\n");
  
  	opts.checkout_strategy =
  		GIT_CHECKOUT_SAFE |
  		GIT_CHECKOUT_RECREATE_MISSING |
  		GIT_CHECKOUT_ALLOW_CONFLICTS;
  	opts.notify_flags = GIT_CHECKOUT_NOTIFY_CONFLICT;
  	opts.notify_cb = dont_notify_cb;
  	opts.notify_payload = NULL;
  
  	cl_git_pass(git_checkout_index(g_repo, NULL, &opts));
  }
  
  static void checkout_progress_counter(
  	const char *path, size_t cur, size_t tot, void *payload)
  {
  	GIT_UNUSED(path); GIT_UNUSED(cur); GIT_UNUSED(tot);
  	(*(int *)payload)++;
  }
  
  void test_checkout_index__calls_progress_callback(void)
  {
  	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
  	int calls = 0;
  
  	opts.checkout_strategy = GIT_CHECKOUT_SAFE | GIT_CHECKOUT_RECREATE_MISSING;
  	opts.progress_cb = checkout_progress_counter;
  	opts.progress_payload = &calls;
  
  	cl_git_pass(git_checkout_index(g_repo, NULL, &opts));
  	cl_assert(calls > 0);
  }
  
  void test_checkout_index__can_overcome_name_clashes(void)
  {
  	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
  	git_index *index;
  
  	cl_git_pass(git_repository_index(&index, g_repo));
  	git_index_clear(index);
  
  	cl_git_mkfile("./testrepo/path0", "content\r\n");
  	cl_git_pass(p_mkdir("./testrepo/path1", 0777));
  	cl_git_mkfile("./testrepo/path1/file1", "content\r\n");
  
  	cl_git_pass(git_index_add_bypath(index, "path0"));
  	cl_git_pass(git_index_add_bypath(index, "path1/file1"));
  
  	cl_git_pass(p_unlink("./testrepo/path0"));
  	cl_git_pass(git_futils_rmdir_r(
  		"./testrepo/path1", NULL, GIT_RMDIR_REMOVE_FILES));
  
  	cl_git_mkfile("./testrepo/path1", "content\r\n");
  	cl_git_pass(p_mkdir("./testrepo/path0", 0777));
  	cl_git_mkfile("./testrepo/path0/file0", "content\r\n");
  
  	cl_assert(git_path_isfile("./testrepo/path1"));
  	cl_assert(git_path_isfile("./testrepo/path0/file0"));
  
  	opts.checkout_strategy =
  		GIT_CHECKOUT_SAFE |
  		GIT_CHECKOUT_RECREATE_MISSING |
  		GIT_CHECKOUT_ALLOW_CONFLICTS;
  	cl_git_pass(git_checkout_index(g_repo, index, &opts));
  
  	cl_assert(git_path_isfile("./testrepo/path1"));
  	cl_assert(git_path_isfile("./testrepo/path0/file0"));
  
  	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
  	cl_git_pass(git_checkout_index(g_repo, index, &opts));
  
  	cl_assert(git_path_isfile("./testrepo/path0"));
  	cl_assert(git_path_isfile("./testrepo/path1/file1"));
  
  	git_index_free(index);
  }
  
  void test_checkout_index__validates_struct_version(void)
  {
  	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
  	const git_error *err;
  
  	opts.version = 1024;
  	cl_git_fail(git_checkout_index(g_repo, NULL, &opts));
  
  	err = git_error_last();
  	cl_assert_equal_i(err->klass, GIT_ERROR_INVALID);
  
  	opts.version = 0;
  	git_error_clear();
  	cl_git_fail(git_checkout_index(g_repo, NULL, &opts));
  
  	err = git_error_last();
  	cl_assert_equal_i(err->klass, GIT_ERROR_INVALID);
  }
  
  void test_checkout_index__can_update_prefixed_files(void)
  {
  	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
  
  	cl_assert_equal_i(false, git_path_isfile("./testrepo/README"));
  	cl_assert_equal_i(false, git_path_isfile("./testrepo/branch_file.txt"));
  	cl_assert_equal_i(false, git_path_isfile("./testrepo/new.txt"));
  
  	cl_git_mkfile("./testrepo/READ", "content\n");
  	cl_git_mkfile("./testrepo/README.after", "content\n");
  	cl_git_pass(p_mkdir("./testrepo/branch_file", 0777));
  	cl_git_pass(p_mkdir("./testrepo/branch_file/contained_dir", 0777));
  	cl_git_mkfile("./testrepo/branch_file/contained_file", "content\n");
  	cl_git_pass(p_mkdir("./testrepo/branch_file.txt.after", 0777));
  
  	opts.checkout_strategy =
  		GIT_CHECKOUT_SAFE |
  		GIT_CHECKOUT_RECREATE_MISSING |
  		GIT_CHECKOUT_REMOVE_UNTRACKED;
  
  	cl_git_pass(git_checkout_index(g_repo, NULL, &opts));
  
  	/* remove untracked will remove the .gitattributes file before the blobs
  	 * were created, so they will have had crlf filtering applied on Windows
  	 */
  	check_file_contents_nocr("./testrepo/README", "hey there\n");
  	check_file_contents_nocr("./testrepo/branch_file.txt", "hi\nbye!\n");
  	check_file_contents_nocr("./testrepo/new.txt", "my new file\n");
  
  	cl_assert(!git_path_exists("testrepo/READ"));
  	cl_assert(!git_path_exists("testrepo/README.after"));
  	cl_assert(!git_path_exists("testrepo/branch_file"));
  	cl_assert(!git_path_exists("testrepo/branch_file.txt.after"));
  }
  
  void test_checkout_index__can_checkout_a_newly_initialized_repository(void)
  {
  	cl_git_sandbox_cleanup();
  	g_repo = cl_git_sandbox_init("empty_standard_repo");
  
  	cl_git_remove_placeholders(git_repository_path(g_repo), "dummy-marker.txt");
  
  	cl_git_pass(git_checkout_index(g_repo, NULL, NULL));
  }
  
  void test_checkout_index__issue_1397(void)
  {
  	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
  
  	cl_git_sandbox_cleanup();
  	g_repo = cl_git_sandbox_init("issue_1397");
  
  	cl_repo_set_bool(g_repo, "core.autocrlf", true);
  
  	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
  
  	cl_git_pass(git_checkout_index(g_repo, NULL, &opts));
  
  	check_file_contents("./issue_1397/crlf_file.txt", "first line\r\nsecond line\r\nboth with crlf");
  }
  
  void test_checkout_index__target_directory(void)
  {
  	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
  	checkout_counts cts;
  	memset(&cts, 0, sizeof(cts));
  
  	opts.checkout_strategy = GIT_CHECKOUT_SAFE |
  		GIT_CHECKOUT_RECREATE_MISSING;
  	opts.target_directory = "alternative";
  	cl_assert(!git_path_isdir("alternative"));
  
  	opts.notify_flags = GIT_CHECKOUT_NOTIFY_ALL;
  	opts.notify_cb = checkout_count_callback;
  	opts.notify_payload = &cts;
  
  	/* create some files that *would* conflict if we were using the wd */
  	cl_git_mkfile("testrepo/README", "I'm in the way!\n");
  	cl_git_mkfile("testrepo/new.txt", "my new file\n");
  
  	cl_git_pass(git_checkout_index(g_repo, NULL, &opts));
  
  	cl_assert_equal_i(0, cts.n_untracked);
  	cl_assert_equal_i(0, cts.n_ignored);
  	cl_assert_equal_i(4, cts.n_updates);
  
  	check_file_contents("./alternative/README", "hey there\n");
  	check_file_contents("./alternative/branch_file.txt", "hi\nbye!\n");
  	check_file_contents("./alternative/new.txt", "my new file\n");
  
  	cl_git_pass(git_futils_rmdir_r(
  		"alternative", NULL, GIT_RMDIR_REMOVE_FILES));
  }
  
  void test_checkout_index__target_directory_from_bare(void)
  {
  	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
  	git_index *index;
  	git_object *head = NULL;
  	checkout_counts cts;
  	memset(&cts, 0, sizeof(cts));
  
  	cl_git_sandbox_cleanup();
  	g_repo = cl_git_sandbox_init("testrepo.git");
  	cl_assert(git_repository_is_bare(g_repo));
  
  	cl_git_pass(git_repository_index(&index, g_repo));
  	cl_git_pass(git_revparse_single(&head, g_repo, "HEAD^{tree}"));
  	cl_git_pass(git_index_read_tree(index, (const git_tree *)head));
  	cl_git_pass(git_index_write(index));
  	git_index_free(index);
  
  	opts.checkout_strategy = GIT_CHECKOUT_SAFE |
  		GIT_CHECKOUT_RECREATE_MISSING;
  
  	opts.notify_flags = GIT_CHECKOUT_NOTIFY_ALL;
  	opts.notify_cb = checkout_count_callback;
  	opts.notify_payload = &cts;
  
  	/* fail to checkout a bare repo */
  	cl_git_fail(git_checkout_index(g_repo, NULL, &opts));
  
  	opts.target_directory = "alternative";
  	cl_assert(!git_path_isdir("alternative"));
  
  	cl_git_pass(git_checkout_index(g_repo, NULL, &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);
  
  	/* files will have been filtered if needed, so strip CR */
  	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));
  
  	git_object_free(head);
  }
  
  void test_checkout_index__can_get_repo_from_index(void)
  {
  	git_index *index;
  	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
  
  	cl_assert_equal_i(false, git_path_isfile("./testrepo/README"));
  	cl_assert_equal_i(false, git_path_isfile("./testrepo/branch_file.txt"));
  	cl_assert_equal_i(false, git_path_isfile("./testrepo/new.txt"));
  
  	opts.checkout_strategy = GIT_CHECKOUT_SAFE | GIT_CHECKOUT_RECREATE_MISSING;
  
  	cl_git_pass(git_repository_index(&index, g_repo));
  
  	cl_git_pass(git_checkout_index(NULL, index, &opts));
  
  	check_file_contents("./testrepo/README", "hey there\n");
  	check_file_contents("./testrepo/branch_file.txt", "hi\nbye!\n");
  	check_file_contents("./testrepo/new.txt", "my new file\n");
  
  	git_index_free(index);
  }
  
  static void add_conflict(git_index *index, const char *path)
  {
  	git_index_entry entry;
  
  	memset(&entry, 0, sizeof(git_index_entry));
  
  	entry.mode = 0100644;
  	entry.path = path;
  
  	git_oid_fromstr(&entry.id, "d427e0b2e138501a3d15cc376077a3631e15bd46");
  	GIT_INDEX_ENTRY_STAGE_SET(&entry, 1);
  	cl_git_pass(git_index_add(index, &entry));
  
  	git_oid_fromstr(&entry.id, "4e886e602529caa9ab11d71f86634bd1b6e0de10");
  	GIT_INDEX_ENTRY_STAGE_SET(&entry, 2);
  	cl_git_pass(git_index_add(index, &entry));
  
  	git_oid_fromstr(&entry.id, "2bd0a343aeef7a2cf0d158478966a6e587ff3863");
  	GIT_INDEX_ENTRY_STAGE_SET(&entry, 3);
  	cl_git_pass(git_index_add(index, &entry));
  }
  
  void test_checkout_index__writes_conflict_file(void)
  {
  	git_index *index;
  	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
  	git_buf conflicting_buf = GIT_BUF_INIT;
  
  	cl_git_pass(git_repository_index(&index, g_repo));
  
  	add_conflict(index, "conflicting.txt");
  	cl_git_pass(git_index_write(index));
  
  	cl_git_pass(git_checkout_index(g_repo, NULL, &opts));
  
  	cl_git_pass(git_futils_readbuffer(&conflicting_buf, "testrepo/conflicting.txt"));
  	cl_assert(strcmp(conflicting_buf.ptr,
  		"<<<<<<< ours\n"
  		"this file is changed in master and branch\n"
  		"=======\n"
  		"this file is changed in branch and master\n"
  		">>>>>>> theirs\n") == 0);
  	git_buf_dispose(&conflicting_buf);
  
  	git_index_free(index);
  }
  
  void test_checkout_index__adding_conflict_removes_stage_0(void)
  {
  	git_index *new_index, *index;
  	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
  
  	cl_git_pass(git_index_new(&new_index));
  
  	add_conflict(new_index, "new.txt");
  	cl_git_pass(git_checkout_index(g_repo, new_index, &opts));
  
  	cl_git_pass(git_repository_index(&index, g_repo));
  
  	cl_assert(git_index_get_bypath(index, "new.txt", 0) == NULL);
  	cl_assert(git_index_get_bypath(index, "new.txt", 1) != NULL);
  	cl_assert(git_index_get_bypath(index, "new.txt", 2) != NULL);
  	cl_assert(git_index_get_bypath(index, "new.txt", 3) != NULL);
  
  	git_index_free(index);
  	git_index_free(new_index);
  }
  
  void test_checkout_index__conflicts_honor_coreautocrlf(void)
  {
  #ifdef GIT_WIN32
  	git_index *index;
  	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
  	git_buf conflicting_buf = GIT_BUF_INIT;
  
  	cl_git_pass(p_unlink("./testrepo/.gitattributes"));
  	cl_repo_set_bool(g_repo, "core.autocrlf", true);
  
  	cl_git_pass(git_repository_index(&index, g_repo));
  
  	add_conflict(index, "conflicting.txt");
  	cl_git_pass(git_index_write(index));
  
  	cl_git_pass(git_checkout_index(g_repo, NULL, &opts));
  
  	cl_git_pass(git_futils_readbuffer(&conflicting_buf, "testrepo/conflicting.txt"));
  	cl_assert(strcmp(conflicting_buf.ptr,
  		"<<<<<<< ours\r\n"
  		"this file is changed in master and branch\r\n"
  		"=======\r\n"
  		"this file is changed in branch and master\r\n"
  		">>>>>>> theirs\r\n") == 0);
  	git_buf_dispose(&conflicting_buf);
  
  	git_index_free(index);
  #endif
  }
  

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