Initial commit - full huishou project

node_modules/nodegit/vendor/libgit2/tests/checkout/binaryunicode.c

@@ -0,0 +1,58 @@
+#include "clar_libgit2.h"
+#include "refs.h"
+#include "repo/repo_helpers.h"
+#include "path.h"
+#include "futils.h"
+
+static git_repository *g_repo;
+
+void test_checkout_binaryunicode__initialize(void)
+{
+	g_repo = cl_git_sandbox_init("binaryunicode");
+}
+
+void test_checkout_binaryunicode__cleanup(void)
+{
+	cl_git_sandbox_cleanup();
+}
+
+static void execute_test(void)
+{
+	git_oid oid, check;
+	git_commit *commit;
+	git_tree *tree;
+	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
+
+	cl_git_pass(git_reference_name_to_id(&oid, g_repo, "refs/heads/branch1"));
+	cl_git_pass(git_commit_lookup(&commit, g_repo, &oid));
+	cl_git_pass(git_commit_tree(&tree, commit));
+
+	opts.checkout_strategy = GIT_CHECKOUT_SAFE;
+
+	cl_git_pass(git_checkout_tree(g_repo, (git_object *)tree, &opts));
+
+	git_tree_free(tree);
+	git_commit_free(commit);
+
+	/* Verify that the lenna.jpg file was checked out correctly */
+	cl_git_pass(git_oid_fromstr(&check, "8ab005d890fe53f65eda14b23672f60d9f4ec5a1"));
+	cl_git_pass(git_odb_hashfile(&oid, "binaryunicode/lenna.jpg", GIT_OBJECT_BLOB));
+	cl_assert_equal_oid(&oid, &check);
+
+	/* Verify that the text file was checked out correctly */
+	cl_git_pass(git_oid_fromstr(&check, "965b223880dd4249e2c66a0cc0b4cffe1dc40f5a"));
+	cl_git_pass(git_odb_hashfile(&oid, "binaryunicode/utf16_withbom_noeol_crlf.txt", GIT_OBJECT_BLOB));
+	cl_assert_equal_oid(&oid, &check);
+}
+
+void test_checkout_binaryunicode__noautocrlf(void)
+{
+	cl_repo_set_bool(g_repo, "core.autocrlf", false);
+	execute_test();
+}
+
+void test_checkout_binaryunicode__autocrlf(void)
+{
+	cl_repo_set_bool(g_repo, "core.autocrlf", true);
+	execute_test();
+}

node_modules/nodegit/vendor/libgit2/tests/checkout/checkout_helpers.c

@@ -0,0 +1,151 @@
+#include "clar_libgit2.h"
+#include "checkout_helpers.h"
+#include "refs.h"
+#include "futils.h"
+#include "index.h"
+
+void assert_on_branch(git_repository *repo, const char *branch)
+{
+	git_reference *head;
+	git_buf bname = GIT_BUF_INIT;
+
+	cl_git_pass(git_reference_lookup(&head, repo, GIT_HEAD_FILE));
+	cl_assert_(git_reference_type(head) == GIT_REFERENCE_SYMBOLIC, branch);
+
+	cl_git_pass(git_buf_joinpath(&bname, "refs/heads", branch));
+	cl_assert_equal_s(bname.ptr, git_reference_symbolic_target(head));
+
+	git_reference_free(head);
+	git_buf_dispose(&bname);
+}
+
+void reset_index_to_treeish(git_object *treeish)
+{
+	git_object *tree;
+	git_index *index;
+	git_repository *repo = git_object_owner(treeish);
+
+	cl_git_pass(git_object_peel(&tree, treeish, GIT_OBJECT_TREE));
+
+	cl_git_pass(git_repository_index(&index, repo));
+	cl_git_pass(git_index_read_tree(index, (git_tree *)tree));
+	cl_git_pass(git_index_write(index));
+
+	git_object_free(tree);
+	git_index_free(index);
+}
+
+int checkout_count_callback(
+	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)
+{
+	checkout_counts *ct = payload;
+
+	GIT_UNUSED(baseline); GIT_UNUSED(target); GIT_UNUSED(workdir);
+
+	if (why & GIT_CHECKOUT_NOTIFY_CONFLICT) {
+		ct->n_conflicts++;
+
+		if (ct->debug) {
+			if (workdir) {
+				if (baseline) {
+					if (target)
+						fprintf(stderr, "M %s (conflicts with M %s)\n",
+							workdir->path, target->path);
+					else
+						fprintf(stderr, "M %s (conflicts with D %s)\n",
+							workdir->path, baseline->path);
+				} else {
+					if (target)
+						fprintf(stderr, "Existing %s (conflicts with A %s)\n",
+							workdir->path, target->path);
+					else
+						fprintf(stderr, "How can an untracked file be a conflict (%s)\n", workdir->path);
+				}
+			} else {
+				if (baseline) {
+					if (target)
+						fprintf(stderr, "D %s (conflicts with M %s)\n",
+							target->path, baseline->path);
+					else
+						fprintf(stderr, "D %s (conflicts with D %s)\n",
+							baseline->path, baseline->path);
+				} else {
+					if (target)
+						fprintf(stderr, "How can an added file with no workdir be a conflict (%s)\n", target->path);
+					else
+						fprintf(stderr, "How can a nonexistent file be a conflict (%s)\n", path);
+				}
+			}
+		}
+	}
+
+	if (why & GIT_CHECKOUT_NOTIFY_DIRTY) {
+		ct->n_dirty++;
+
+		if (ct->debug) {
+			if (workdir)
+				fprintf(stderr, "M %s\n", workdir->path);
+			else
+				fprintf(stderr, "D %s\n", baseline->path);
+		}
+	}
+
+	if (why & GIT_CHECKOUT_NOTIFY_UPDATED) {
+		ct->n_updates++;
+
+		if (ct->debug) {
+			if (baseline) {
+				if (target)
+					fprintf(stderr, "update: M %s\n", path);
+				else
+					fprintf(stderr, "update: D %s\n", path);
+			} else {
+				if (target)
+					fprintf(stderr, "update: A %s\n", path);
+				else
+					fprintf(stderr, "update: this makes no sense %s\n", path);
+			}
+		}
+	}
+
+	if (why & GIT_CHECKOUT_NOTIFY_UNTRACKED) {
+		ct->n_untracked++;
+
+		if (ct->debug)
+			fprintf(stderr, "? %s\n", path);
+	}
+
+	if (why & GIT_CHECKOUT_NOTIFY_IGNORED) {
+		ct->n_ignored++;
+
+		if (ct->debug)
+			fprintf(stderr, "I %s\n", path);
+	}
+
+	return 0;
+}
+
+void tick_index(git_index *index)
+{
+	struct timespec ts;
+	struct p_timeval times[2];
+
+	cl_assert(index->on_disk);
+	cl_assert(git_index_path(index));
+
+	cl_git_pass(git_index_read(index, true));
+	ts = index->stamp.mtime;
+
+	times[0].tv_sec = ts.tv_sec;
+	times[0].tv_usec = ts.tv_nsec / 1000;
+	times[1].tv_sec = ts.tv_sec + 5;
+	times[1].tv_usec = ts.tv_nsec / 1000;
+
+	cl_git_pass(p_utimes(git_index_path(index), times));
+	cl_git_pass(git_index_read(index, true));
+}

node_modules/nodegit/vendor/libgit2/tests/checkout/checkout_helpers.h

@@ -0,0 +1,31 @@
+#include "buffer.h"
+#include "git2/object.h"
+#include "git2/repository.h"
+
+extern void assert_on_branch(git_repository *repo, const char *branch);
+extern void reset_index_to_treeish(git_object *treeish);
+
+#define check_file_contents(PATH,EXP) \
+	cl_assert_equal_file(EXP,0,PATH)
+
+#define check_file_contents_nocr(PATH,EXP) \
+	cl_assert_equal_file_ignore_cr(EXP,0,PATH)
+
+typedef struct {
+	int n_conflicts;
+	int n_dirty;
+	int n_updates;
+	int n_untracked;
+	int n_ignored;
+	int debug;
+} checkout_counts;
+
+extern int checkout_count_callback(
+	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);
+
+extern void tick_index(git_index *index);

node_modules/nodegit/vendor/libgit2/tests/checkout/crlf.c

@@ -0,0 +1,496 @@
+#include "clar_libgit2.h"
+#include "checkout_helpers.h"
+#include "../filter/crlf.h"
+#include "futils.h"
+
+#include "git2/checkout.h"
+#include "repository.h"
+#include "index.h"
+#include "posix.h"
+
+static git_repository *g_repo;
+
+static const char *systype;
+static git_buf expected_fixture = GIT_BUF_INIT;
+
+static int unlink_file(void *payload, git_buf *path)
+{
+	char *fn;
+
+	cl_assert(fn = git_path_basename(path->ptr));
+
+	GIT_UNUSED(payload);
+
+	if (strcmp(fn, ".git"))
+		cl_must_pass(p_unlink(path->ptr));
+
+	git__free(fn);
+	return 0;
+}
+
+void test_checkout_crlf__initialize(void)
+{
+	git_buf reponame = GIT_BUF_INIT;
+
+	g_repo = cl_git_sandbox_init("crlf");
+
+	/*
+	 * remove the contents of the working directory so that we can
+	 * check out over it.
+	 */
+	cl_git_pass(git_buf_puts(&reponame, "crlf"));
+	cl_git_pass(git_path_direach(&reponame, 0, unlink_file, NULL));
+
+	if (GIT_EOL_NATIVE == GIT_EOL_CRLF)
+		systype = "windows";
+	else
+		systype = "posix";
+
+	git_buf_dispose(&reponame);
+}
+
+void test_checkout_crlf__cleanup(void)
+{
+	cl_git_sandbox_cleanup();
+
+	if (expected_fixture.size) {
+		cl_fixture_cleanup(expected_fixture.ptr);
+		git_buf_dispose(&expected_fixture);
+	}
+}
+
+struct compare_data
+{
+	const char *dirname;
+	const char *autocrlf;
+	const char *attrs;
+};
+
+static int compare_file(void *payload, git_buf *actual_path)
+{
+	git_buf expected_path = GIT_BUF_INIT;
+	git_buf actual_contents = GIT_BUF_INIT;
+	git_buf expected_contents = GIT_BUF_INIT;
+	struct compare_data *cd = payload;
+	bool failed = true;
+	int cmp_git, cmp_gitattributes;
+	char *basename;
+
+	basename = git_path_basename(actual_path->ptr);
+	cmp_git = strcmp(basename, ".git");
+	cmp_gitattributes = strcmp(basename, ".gitattributes");
+
+	if (cmp_git == 0 || cmp_gitattributes == 0) {
+		failed = false;
+		goto done;
+	}
+
+	cl_git_pass(git_buf_joinpath(&expected_path, cd->dirname, basename));
+
+	if (!git_path_isfile(expected_path.ptr) ||
+		!git_path_isfile(actual_path->ptr))
+		goto done;
+
+	if (git_futils_readbuffer(&actual_contents, actual_path->ptr) < 0 ||
+		git_futils_readbuffer(&expected_contents, expected_path.ptr) < 0)
+		goto done;
+
+	if (actual_contents.size != expected_contents.size)
+		goto done;
+
+	if (memcmp(actual_contents.ptr, expected_contents.ptr, expected_contents.size) != 0)
+		goto done;
+
+	failed = false;
+
+done:
+	if (failed) {
+		git_buf details = GIT_BUF_INIT;
+		git_buf_printf(&details, "filename=%s, system=%s, autocrlf=%s, attrs={%s}",
+			git_path_basename(actual_path->ptr), systype, cd->autocrlf, cd->attrs);
+		clar__fail(__FILE__, __LINE__,
+			"checked out contents did not match expected", details.ptr, 0);
+		git_buf_dispose(&details);
+	}
+
+	git__free(basename);
+	git_buf_dispose(&expected_contents);
+	git_buf_dispose(&actual_contents);
+	git_buf_dispose(&expected_path);
+
+	return 0;
+}
+
+static void test_checkout(const char *autocrlf, const char *attrs)
+{
+	git_buf attrbuf = GIT_BUF_INIT;
+	git_buf expected_dirname = GIT_BUF_INIT;
+	git_buf systype_and_direction = GIT_BUF_INIT;
+	git_buf sandboxname = GIT_BUF_INIT;
+	git_buf reponame = GIT_BUF_INIT;
+	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
+	struct compare_data compare_data = { NULL, autocrlf, attrs };
+	const char *c;
+
+	cl_git_pass(git_buf_puts(&reponame, "crlf"));
+
+	cl_git_pass(git_buf_puts(&systype_and_direction, systype));
+	cl_git_pass(git_buf_puts(&systype_and_direction, "_to_workdir"));
+
+	cl_git_pass(git_buf_puts(&sandboxname, "autocrlf_"));
+	cl_git_pass(git_buf_puts(&sandboxname, autocrlf));
+
+	if (*attrs) {
+		cl_git_pass(git_buf_puts(&sandboxname, ","));
+
+		for (c = attrs; *c; c++) {
+			if (*c == ' ')
+				cl_git_pass(git_buf_putc(&sandboxname, ','));
+			else if (*c == '=')
+				cl_git_pass(git_buf_putc(&sandboxname, '_'));
+			else
+				cl_git_pass(git_buf_putc(&sandboxname, *c));
+		}
+
+		cl_git_pass(git_buf_printf(&attrbuf, "* %s\n", attrs));
+		cl_git_mkfile("crlf/.gitattributes", attrbuf.ptr);
+	}
+
+	cl_repo_set_string(g_repo, "core.autocrlf", autocrlf);
+
+	cl_git_pass(git_buf_joinpath(&expected_dirname, systype_and_direction.ptr, sandboxname.ptr));
+	cl_git_pass(git_buf_joinpath(&expected_fixture, "crlf_data", expected_dirname.ptr));
+	cl_fixture_sandbox(expected_fixture.ptr);
+
+	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
+	cl_git_pass(git_checkout_head(g_repo, &opts));
+
+	compare_data.dirname = sandboxname.ptr;
+	cl_git_pass(git_path_direach(&reponame, 0, compare_file, &compare_data));
+
+	cl_fixture_cleanup(expected_fixture.ptr);
+	git_buf_dispose(&expected_fixture);
+
+	git_buf_dispose(&attrbuf);
+	git_buf_dispose(&expected_fixture);
+	git_buf_dispose(&expected_dirname);
+	git_buf_dispose(&sandboxname);
+	git_buf_dispose(&systype_and_direction);
+	git_buf_dispose(&reponame);
+}
+
+static void empty_workdir(const char *name)
+{
+	git_vector contents = GIT_VECTOR_INIT;
+	char *basename;
+	int cmp;
+	size_t i;
+	const char *fn;
+
+	cl_git_pass(git_path_dirload(&contents, name, 0, 0));
+	git_vector_foreach(&contents, i, fn) {
+		cl_assert(basename = git_path_basename(fn));
+		cmp = strncasecmp(basename, ".git", 4);
+
+		git__free(basename);
+
+		if (cmp)
+			cl_git_pass(p_unlink(fn));
+	}
+	git_vector_free_deep(&contents);
+}
+
+void test_checkout_crlf__matches_core_git(void)
+{
+	const char *autocrlf[] = { "true", "false", "input", NULL };
+	const char *attrs[] = { "", "-crlf", "-text", "eol=crlf", "eol=lf",
+		"text", "text eol=crlf", "text eol=lf",
+		"text=auto", "text=auto eol=crlf", "text=auto eol=lf",
+		NULL };
+	const char **a, **b;
+
+	for (a = autocrlf; *a; a++) {
+		for (b = attrs; *b; b++) {
+			empty_workdir("crlf");
+			test_checkout(*a, *b);
+		}
+	}
+}
+
+void test_checkout_crlf__detect_crlf_autocrlf_false(void)
+{
+	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
+	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
+
+	cl_repo_set_bool(g_repo, "core.autocrlf", false);
+
+	git_checkout_head(g_repo, &opts);
+
+	check_file_contents("./crlf/all-lf", ALL_LF_TEXT_RAW);
+	check_file_contents("./crlf/all-crlf", ALL_CRLF_TEXT_RAW);
+}
+
+void test_checkout_crlf__autocrlf_false_index_size_is_unfiltered_size(void)
+{
+	git_index *index;
+	const git_index_entry *entry;
+	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
+	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
+
+	cl_repo_set_bool(g_repo, "core.autocrlf", false);
+
+	git_repository_index(&index, g_repo);
+	tick_index(index);
+
+	git_checkout_head(g_repo, &opts);
+
+	cl_assert((entry = git_index_get_bypath(index, "all-lf", 0)) != NULL);
+	cl_assert(entry->file_size == strlen(ALL_LF_TEXT_RAW));
+
+	cl_assert((entry = git_index_get_bypath(index, "all-crlf", 0)) != NULL);
+	cl_assert(entry->file_size == strlen(ALL_CRLF_TEXT_RAW));
+
+	git_index_free(index);
+}
+
+void test_checkout_crlf__detect_crlf_autocrlf_true(void)
+{
+	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
+	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
+
+	cl_repo_set_bool(g_repo, "core.autocrlf", true);
+
+	git_checkout_head(g_repo, &opts);
+
+	check_file_contents("./crlf/all-lf", ALL_LF_TEXT_AS_CRLF);
+	check_file_contents("./crlf/all-crlf", ALL_CRLF_TEXT_RAW);
+}
+
+void test_checkout_crlf__detect_crlf_autocrlf_true_utf8(void)
+{
+	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
+	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
+
+	cl_repo_set_bool(g_repo, "core.autocrlf", true);
+
+	git_repository_set_head(g_repo, "refs/heads/master");
+	git_checkout_head(g_repo, &opts);
+
+	check_file_contents("./crlf/few-utf8-chars-lf", FEW_UTF8_CRLF_RAW);
+	check_file_contents("./crlf/many-utf8-chars-lf", MANY_UTF8_CRLF_RAW);
+
+	check_file_contents("./crlf/few-utf8-chars-crlf", FEW_UTF8_CRLF_RAW);
+	check_file_contents("./crlf/many-utf8-chars-crlf", MANY_UTF8_CRLF_RAW);
+}
+
+void test_checkout_crlf__autocrlf_true_index_size_is_filtered_size(void)
+{
+	git_index *index;
+	const git_index_entry *entry;
+	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
+	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
+
+	cl_repo_set_bool(g_repo, "core.autocrlf", true);
+
+	git_repository_index(&index, g_repo);
+	tick_index(index);
+
+	git_checkout_head(g_repo, &opts);
+
+	cl_assert((entry = git_index_get_bypath(index, "all-lf", 0)) != NULL);
+
+	cl_assert_equal_sz(strlen(ALL_LF_TEXT_AS_CRLF), entry->file_size);
+
+	cl_assert((entry = git_index_get_bypath(index, "all-crlf", 0)) != NULL);
+	cl_assert_equal_sz(strlen(ALL_CRLF_TEXT_RAW), entry->file_size);
+
+	git_index_free(index);
+}
+
+void test_checkout_crlf__with_ident(void)
+{
+	git_index *index;
+	const git_index_entry *entry;
+	git_blob *blob;
+	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
+	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
+
+	cl_git_mkfile("crlf/.gitattributes",
+		"*.txt text\n*.bin binary\n"
+		"*.crlf text eol=crlf\n"
+		"*.lf text eol=lf\n"
+		"*.ident text ident\n"
+		"*.identcrlf ident text eol=crlf\n"
+		"*.identlf ident text eol=lf\n");
+
+	cl_repo_set_bool(g_repo, "core.autocrlf", true);
+
+	/* add files with $Id$ */
+
+	cl_git_mkfile("crlf/lf.ident", ALL_LF_TEXT_RAW "\n$Id: initial content$\n");
+	cl_git_mkfile("crlf/crlf.ident", ALL_CRLF_TEXT_RAW "\r\n$Id$\r\n\r\n");
+	cl_git_mkfile("crlf/more1.identlf", "$Id$\n" MORE_LF_TEXT_RAW);
+	cl_git_mkfile("crlf/more2.identcrlf", "\r\n$Id: $\r\n" MORE_CRLF_TEXT_RAW);
+
+	cl_git_pass(git_repository_index(&index, g_repo));
+	cl_git_pass(git_index_add_bypath(index, "lf.ident"));
+	cl_git_pass(git_index_add_bypath(index, "crlf.ident"));
+	cl_git_pass(git_index_add_bypath(index, "more1.identlf"));
+	cl_git_pass(git_index_add_bypath(index, "more2.identcrlf"));
+	cl_repo_commit_from_index(NULL, g_repo, NULL, 0, "Some ident files\n");
+
+	git_checkout_head(g_repo, &opts);
+
+	/* check that blobs have $Id$ */
+
+	cl_assert((entry = git_index_get_bypath(index, "lf.ident", 0)));
+	cl_git_pass(git_blob_lookup(&blob, g_repo, &entry->id));
+	cl_assert_equal_s(
+		ALL_LF_TEXT_RAW "\n$Id$\n", git_blob_rawcontent(blob));
+	git_blob_free(blob);
+
+	cl_assert((entry = git_index_get_bypath(index, "more2.identcrlf", 0)));
+	cl_git_pass(git_blob_lookup(&blob, g_repo, &entry->id));
+	cl_assert_equal_s(
+		"\n$Id$\n" MORE_CRLF_TEXT_AS_LF, git_blob_rawcontent(blob));
+	git_blob_free(blob);
+
+	/* check that filesystem is initially untouched - matching core Git */
+
+	cl_assert_equal_file(
+		ALL_LF_TEXT_RAW "\n$Id: initial content$\n", 0, "crlf/lf.ident");
+
+	/* check that forced checkout rewrites correctly */
+
+	p_unlink("crlf/lf.ident");
+	p_unlink("crlf/crlf.ident");
+	p_unlink("crlf/more1.identlf");
+	p_unlink("crlf/more2.identcrlf");
+
+	cl_git_pass(git_checkout_head(g_repo, &opts));
+
+	cl_assert_equal_file(
+		ALL_LF_TEXT_AS_CRLF
+		"\r\n$Id: fcf6d4d9c212dc66563b1171b1cd99953c756467 $\r\n",
+		0, "crlf/lf.ident");
+	cl_assert_equal_file(
+		ALL_CRLF_TEXT_RAW
+		"\r\n$Id: f2c66ad9b2b5a734d9bf00d5000cc10a62b8a857 $\r\n\r\n",
+		0, "crlf/crlf.ident");
+
+	cl_assert_equal_file(
+		"$Id: f7830382dac1f1583422be5530fdfbd26289431b $\n"
+		MORE_LF_TEXT_AS_LF, 0, "crlf/more1.identlf");
+
+	cl_assert_equal_file(
+		"\r\n$Id: 74677a68413012ce8d7e7cfc3f12603df3a3eac4 $\r\n"
+		MORE_CRLF_TEXT_AS_CRLF, 0, "crlf/more2.identcrlf");
+
+	git_index_free(index);
+}
+
+void test_checkout_crlf__autocrlf_false_no_attrs(void)
+{
+	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
+	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
+
+	cl_repo_set_bool(g_repo, "core.autocrlf", false);
+
+	cl_git_pass(git_checkout_head(g_repo, &opts));
+
+	check_file_contents("./crlf/all-lf", ALL_LF_TEXT_RAW);
+	check_file_contents("./crlf/all-crlf", ALL_CRLF_TEXT_RAW);
+}
+
+void test_checkout_crlf__autocrlf_true_no_attrs(void)
+{
+	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
+	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
+
+	cl_repo_set_bool(g_repo, "core.autocrlf", true);
+
+	cl_git_pass(git_checkout_head(g_repo, &opts));
+
+	check_file_contents("./crlf/all-lf", ALL_LF_TEXT_AS_CRLF);
+	check_file_contents("./crlf/all-crlf", ALL_CRLF_TEXT_AS_CRLF);
+}
+
+void test_checkout_crlf__autocrlf_input_no_attrs(void)
+{
+	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
+	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
+
+	cl_repo_set_string(g_repo, "core.autocrlf", "input");
+
+	cl_git_pass(git_checkout_head(g_repo, &opts));
+
+	check_file_contents("./crlf/all-lf", ALL_LF_TEXT_RAW);
+	check_file_contents("./crlf/all-crlf", ALL_CRLF_TEXT_RAW);
+}
+
+void test_checkout_crlf__autocrlf_false_text_auto_attr(void)
+{
+	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
+	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
+
+	cl_git_mkfile("./crlf/.gitattributes", "* text=auto\n");
+
+	cl_repo_set_bool(g_repo, "core.autocrlf", false);
+
+	cl_git_pass(git_checkout_head(g_repo, &opts));
+
+	if (GIT_EOL_NATIVE == GIT_EOL_CRLF) {
+		check_file_contents("./crlf/all-lf", ALL_LF_TEXT_AS_CRLF);
+		check_file_contents("./crlf/all-crlf", ALL_CRLF_TEXT_AS_CRLF);
+	} else {
+		check_file_contents("./crlf/all-lf", ALL_LF_TEXT_RAW);
+		check_file_contents("./crlf/all-crlf", ALL_CRLF_TEXT_RAW);
+	}
+}
+
+void test_checkout_crlf__autocrlf_true_text_auto_attr(void)
+{
+	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
+	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
+
+	cl_git_mkfile("./crlf/.gitattributes", "* text=auto\n");
+
+	cl_repo_set_bool(g_repo, "core.autocrlf", true);
+
+	cl_git_pass(git_checkout_head(g_repo, &opts));
+
+	check_file_contents("./crlf/all-lf", ALL_LF_TEXT_AS_CRLF);
+	check_file_contents("./crlf/all-crlf", ALL_CRLF_TEXT_AS_CRLF);
+}
+
+void test_checkout_crlf__autocrlf_input_text_auto_attr(void)
+{
+	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
+	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
+
+	cl_git_mkfile("./crlf/.gitattributes", "* text=auto\n");
+
+	cl_repo_set_string(g_repo, "core.autocrlf", "input");
+
+	cl_git_pass(git_checkout_head(g_repo, &opts));
+
+	check_file_contents("./crlf/all-lf", ALL_LF_TEXT_RAW);
+	check_file_contents("./crlf/all-crlf", ALL_CRLF_TEXT_RAW);
+}
+
+void test_checkout_crlf__can_write_empty_file(void)
+{
+	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
+	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
+
+	cl_repo_set_bool(g_repo, "core.autocrlf", true);
+
+	cl_git_pass(git_repository_set_head(g_repo, "refs/heads/empty-files"));
+	cl_git_pass(git_checkout_head(g_repo, &opts));
+
+	check_file_contents("./crlf/test1.txt", "");
+
+	check_file_contents("./crlf/test2.txt", "test2.txt's content\r\n");
+
+	check_file_contents("./crlf/test3.txt", "");
+}

node_modules/nodegit/vendor/libgit2/tests/checkout/head.c

@@ -0,0 +1,266 @@
+#include "clar_libgit2.h"
+#include "refs.h"
+#include "repo/repo_helpers.h"
+#include "path.h"
+#include "futils.h"
+
+static git_repository *g_repo;
+
+void test_checkout_head__initialize(void)
+{
+	g_repo = cl_git_sandbox_init("testrepo");
+}
+
+void test_checkout_head__cleanup(void)
+{
+	cl_git_sandbox_cleanup();
+}
+
+void test_checkout_head__unborn_head_returns_GIT_EUNBORNBRANCH(void)
+{
+	make_head_unborn(g_repo, NON_EXISTING_HEAD);
+
+	cl_assert_equal_i(GIT_EUNBORNBRANCH, git_checkout_head(g_repo, NULL));
+}
+
+void test_checkout_head__with_index_only_tree(void)
+{
+	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
+	git_index *index;
+
+	/* let's start by getting things into a known state */
+
+	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
+	cl_git_pass(git_checkout_head(g_repo, &opts));
+
+	/* now let's stage some new stuff including a new directory */
+
+	cl_git_pass(git_repository_index(&index, g_repo));
+
+	p_mkdir("testrepo/newdir", 0777);
+	cl_git_mkfile("testrepo/newdir/newfile.txt", "new file\n");
+
+	cl_git_pass(git_index_add_bypath(index, "newdir/newfile.txt"));
+	cl_git_pass(git_index_write(index));
+
+	cl_assert(git_path_isfile("testrepo/newdir/newfile.txt"));
+	cl_assert(git_index_get_bypath(index, "newdir/newfile.txt", 0) != NULL);
+
+	git_index_free(index);
+
+	/* okay, so now we have staged this new file; let's see if we can remove */
+
+	opts.checkout_strategy = GIT_CHECKOUT_FORCE | GIT_CHECKOUT_REMOVE_UNTRACKED;
+	cl_git_pass(git_checkout_head(g_repo, &opts));
+
+	cl_git_pass(git_repository_index(&index, g_repo));
+
+	cl_assert(!git_path_isfile("testrepo/newdir/newfile.txt"));
+	cl_assert(git_index_get_bypath(index, "newdir/newfile.txt", 0) == NULL);
+
+	git_index_free(index);
+}
+
+void test_checkout_head__do_not_remove_untracked_file(void)
+{
+	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
+	git_index *index;
+
+	cl_git_pass(p_mkdir("testrepo/tracked", 0755));
+	cl_git_mkfile("testrepo/tracked/tracked", "tracked\n");
+	cl_git_mkfile("testrepo/tracked/untracked", "untracked\n");
+
+	cl_git_pass(git_repository_index(&index, g_repo));
+	cl_git_pass(git_index_add_bypath(index, "tracked/tracked"));
+	cl_git_pass(git_index_write(index));
+
+	git_index_free(index);
+
+	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
+	cl_git_pass(git_checkout_head(g_repo, &opts));
+
+	cl_assert(!git_path_isfile("testrepo/tracked/tracked"));
+	cl_assert(git_path_isfile("testrepo/tracked/untracked"));
+}
+
+void test_checkout_head__do_not_remove_untracked_file_in_subdir(void)
+{
+	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
+	git_index *index;
+
+	cl_git_pass(p_mkdir("testrepo/tracked", 0755));
+	cl_git_pass(p_mkdir("testrepo/tracked/subdir", 0755));
+	cl_git_mkfile("testrepo/tracked/tracked", "tracked\n");
+	cl_git_mkfile("testrepo/tracked/subdir/tracked", "tracked\n");
+	cl_git_mkfile("testrepo/tracked/subdir/untracked", "untracked\n");
+
+	cl_git_pass(git_repository_index(&index, g_repo));
+	cl_git_pass(git_index_add_bypath(index, "tracked/tracked"));
+	cl_git_pass(git_index_add_bypath(index, "tracked/subdir/tracked"));
+	cl_git_pass(git_index_write(index));
+
+	git_index_free(index);
+
+	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
+	cl_git_pass(git_checkout_head(g_repo, &opts));
+
+	cl_assert(!git_path_isfile("testrepo/tracked/tracked"));
+	cl_assert(!git_path_isfile("testrepo/tracked/subdir/tracked"));
+	cl_assert(git_path_isfile("testrepo/tracked/subdir/untracked"));
+}
+
+void test_checkout_head__do_remove_tracked_subdir(void)
+{
+	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
+	git_index *index;
+
+	cl_git_pass(p_mkdir("testrepo/subdir", 0755));
+	cl_git_pass(p_mkdir("testrepo/subdir/tracked", 0755));
+	cl_git_mkfile("testrepo/subdir/tracked-file", "tracked\n");
+	cl_git_mkfile("testrepo/subdir/untracked-file", "untracked\n");
+	cl_git_mkfile("testrepo/subdir/tracked/tracked1", "tracked\n");
+	cl_git_mkfile("testrepo/subdir/tracked/tracked2", "tracked\n");
+
+	cl_git_pass(git_repository_index(&index, g_repo));
+	cl_git_pass(git_index_add_bypath(index, "subdir/tracked-file"));
+	cl_git_pass(git_index_add_bypath(index, "subdir/tracked/tracked1"));
+	cl_git_pass(git_index_add_bypath(index, "subdir/tracked/tracked2"));
+	cl_git_pass(git_index_write(index));
+
+	git_index_free(index);
+
+	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
+	cl_git_pass(git_checkout_head(g_repo, &opts));
+
+	cl_assert(!git_path_isdir("testrepo/subdir/tracked"));
+	cl_assert(!git_path_isfile("testrepo/subdir/tracked-file"));
+	cl_assert(git_path_isfile("testrepo/subdir/untracked-file"));
+}
+
+void test_checkout_head__typechange_workdir(void)
+{
+	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
+	git_object *target;
+	struct stat st;
+
+	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
+
+	cl_git_pass(git_revparse_single(&target, g_repo, "HEAD"));
+	cl_git_pass(git_reset(g_repo, target, GIT_RESET_HARD, NULL));
+
+	cl_must_pass(p_chmod("testrepo/new.txt", 0755));
+	cl_git_pass(git_checkout_head(g_repo, &opts));
+
+	cl_git_pass(p_stat("testrepo/new.txt", &st));
+	cl_assert(!GIT_PERMS_IS_EXEC(st.st_mode));
+
+	git_object_free(target);
+}
+
+void test_checkout_head__typechange_index_and_workdir(void)
+{
+	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
+	git_object *target;
+	git_index *index;
+	struct stat st;
+
+	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
+
+	cl_git_pass(git_revparse_single(&target, g_repo, "HEAD"));
+	cl_git_pass(git_reset(g_repo, target, GIT_RESET_HARD, NULL));
+
+	cl_must_pass(p_chmod("testrepo/new.txt", 0755));
+	cl_git_pass(git_repository_index(&index, g_repo));
+	cl_git_pass(git_index_add_bypath(index, "new.txt"));
+	cl_git_pass(git_index_write(index));
+	cl_git_pass(git_checkout_head(g_repo, &opts));
+
+	cl_git_pass(p_stat("testrepo/new.txt", &st));
+	cl_assert(!GIT_PERMS_IS_EXEC(st.st_mode));
+
+	git_object_free(target);
+	git_index_free(index);
+}
+
+void test_checkout_head__workdir_filemode_is_simplified(void)
+{
+	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
+	git_object *target, *branch;
+
+	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
+
+	cl_git_pass(git_revparse_single(&target, g_repo, "a38d028f71eaa590febb7d716b1ca32350cf70da"));
+	cl_git_pass(git_reset(g_repo, target, GIT_RESET_HARD, NULL));
+
+	cl_must_pass(p_chmod("testrepo/branch_file.txt", 0666));
+
+	/*
+	 * Checkout should not fail with a conflict; though the file mode
+	 * on disk is literally different to the base (0666 vs 0644), Git
+	 * ignores the actual mode and simply treats both as non-executable.
+	 */
+	cl_git_pass(git_revparse_single(&branch, g_repo, "099fabac3a9ea935598528c27f866e34089c2eff"));
+
+	opts.checkout_strategy &= ~GIT_CHECKOUT_FORCE;
+	opts.checkout_strategy |=  GIT_CHECKOUT_SAFE;
+	cl_git_pass(git_checkout_tree(g_repo, branch, NULL));
+
+	git_object_free(branch);
+	git_object_free(target);
+}
+
+void test_checkout_head__obeys_filemode_true(void)
+{
+	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
+	git_object *target, *branch;
+
+	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
+
+	/* In this commit, `README` is executable */
+	cl_git_pass(git_revparse_single(&target, g_repo, "f9ed4af42472941da45a3c"));
+	cl_git_pass(git_reset(g_repo, target, GIT_RESET_HARD, NULL));
+
+	cl_repo_set_bool(g_repo, "core.filemode", true);
+	cl_must_pass(p_chmod("testrepo/README", 0644));
+
+	/*
+	 * Checkout will fail with a conflict; the file mode is updated in
+	 * the checkout target, but the contents have changed in our branch.
+	 */
+	cl_git_pass(git_revparse_single(&branch, g_repo, "099fabac3a9ea935598528c27f866e34089c2eff"));
+
+	opts.checkout_strategy &= ~GIT_CHECKOUT_FORCE;
+	opts.checkout_strategy |=  GIT_CHECKOUT_SAFE;
+	cl_git_fail_with(GIT_ECONFLICT, git_checkout_tree(g_repo, branch, NULL));
+
+	git_object_free(branch);
+	git_object_free(target);
+}
+
+void test_checkout_head__obeys_filemode_false(void)
+{
+	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
+	git_object *target, *branch;
+
+	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
+
+	/* In this commit, `README` is executable */
+	cl_git_pass(git_revparse_single(&target, g_repo, "f9ed4af42472941da45a3c"));
+	cl_git_pass(git_reset(g_repo, target, GIT_RESET_HARD, NULL));
+
+	cl_repo_set_bool(g_repo, "core.filemode", false);
+	cl_must_pass(p_chmod("testrepo/README", 0644));
+
+	/*
+	 * Checkout will fail with a conflict; the file contents are updated
+	 * in the checkout target, but the filemode has changed in our branch.
+	 */
+	cl_git_pass(git_revparse_single(&branch, g_repo, "099fabac3a9ea935598528c27f866e34089c2eff"));
+
+	opts.checkout_strategy &= ~GIT_CHECKOUT_FORCE;
+	opts.checkout_strategy |=  GIT_CHECKOUT_SAFE;
+	cl_git_pass(git_checkout_tree(g_repo, branch, NULL));
+
+	git_object_free(branch);
+	git_object_free(target);
+}

node_modules/nodegit/vendor/libgit2/tests/checkout/icase.c

@@ -0,0 +1,292 @@
+#include "clar_libgit2.h"
+
+#include "git2/checkout.h"
+#include "refs.h"
+#include "path.h"
+#include "repository.h"
+
+#ifdef GIT_WIN32
+# include <windows.h>
+#else
+# include <dirent.h>
+#endif
+
+static git_repository *repo;
+static git_object *obj;
+static git_checkout_options checkout_opts;
+
+void test_checkout_icase__initialize(void)
+{
+	git_oid id;
+	git_config *cfg;
+	int icase = 0;
+
+	repo = cl_git_sandbox_init("testrepo");
+
+	cl_git_pass(git_repository_config_snapshot(&cfg, repo));
+	git_config_get_bool(&icase, cfg, "core.ignorecase");
+	git_config_free(cfg);
+
+	if (!icase)
+		cl_skip();
+
+	cl_git_pass(git_reference_name_to_id(&id, repo, "refs/heads/dir"));
+	cl_git_pass(git_object_lookup(&obj, repo, &id, GIT_OBJECT_ANY));
+
+	git_checkout_options_init(&checkout_opts, GIT_CHECKOUT_OPTIONS_VERSION);
+	checkout_opts.checkout_strategy = GIT_CHECKOUT_NONE;
+}
+
+void test_checkout_icase__cleanup(void)
+{
+	git_object_free(obj);
+	cl_git_sandbox_cleanup();
+}
+
+static char *get_filename(const char *in)
+{
+	char *search_dirname, *search_filename, *filename = NULL;
+	git_buf out = GIT_BUF_INIT;
+	DIR *dir;
+	struct dirent *de;
+
+	cl_assert(search_dirname = git_path_dirname(in));
+	cl_assert(search_filename = git_path_basename(in));
+
+	cl_assert(dir = opendir(search_dirname));
+
+	while ((de = readdir(dir))) {
+		if (strcasecmp(de->d_name, search_filename) == 0) {
+			git_buf_join(&out, '/', search_dirname, de->d_name);
+			filename = git_buf_detach(&out);
+			break;
+		}
+	}
+
+	closedir(dir);
+
+	git__free(search_dirname);
+	git__free(search_filename);
+	git_buf_dispose(&out);
+
+	return filename;
+}
+
+static void assert_name_is(const char *expected)
+{
+	char *actual;
+	size_t actual_len, expected_len, start;
+
+	cl_assert(actual = get_filename(expected));
+
+	expected_len = strlen(expected);
+	actual_len = strlen(actual);
+	cl_assert(actual_len >= expected_len);
+
+	start = actual_len - expected_len;
+	cl_assert_equal_s(expected, actual + start);
+
+	if (start)
+		cl_assert_equal_strn("/", actual + (start - 1), 1);
+
+	free(actual);
+}
+
+static int symlink_or_fake(git_repository *repo, const char *a, const char *b)
+{
+	int symlinks;
+
+	cl_git_pass(git_repository__configmap_lookup(&symlinks, repo, GIT_CONFIGMAP_SYMLINKS));
+
+	if (symlinks)
+		return p_symlink(a, b);
+	else
+		return git_futils_fake_symlink(a, b);
+}
+
+void test_checkout_icase__refuses_to_overwrite_files_for_files(void)
+{
+	checkout_opts.checkout_strategy = GIT_CHECKOUT_SAFE|GIT_CHECKOUT_RECREATE_MISSING;
+
+	cl_git_write2file("testrepo/BRANCH_FILE.txt", "neue file\n", 10, \
+		O_WRONLY | O_CREAT | O_TRUNC, 0644);
+
+	cl_git_fail(git_checkout_tree(repo, obj, &checkout_opts));
+	assert_name_is("testrepo/BRANCH_FILE.txt");
+}
+
+void test_checkout_icase__overwrites_files_for_files_when_forced(void)
+{
+	checkout_opts.checkout_strategy = GIT_CHECKOUT_FORCE;
+
+	cl_git_write2file("testrepo/NEW.txt", "neue file\n", 10, \
+		O_WRONLY | O_CREAT | O_TRUNC, 0644);
+
+	cl_git_pass(git_checkout_tree(repo, obj, &checkout_opts));
+	assert_name_is("testrepo/new.txt");
+}
+
+void test_checkout_icase__refuses_to_overwrite_links_for_files(void)
+{
+	checkout_opts.checkout_strategy = GIT_CHECKOUT_SAFE|GIT_CHECKOUT_RECREATE_MISSING;
+
+	cl_must_pass(symlink_or_fake(repo, "../tmp", "testrepo/BRANCH_FILE.txt"));
+
+	cl_git_fail(git_checkout_tree(repo, obj, &checkout_opts));
+
+	cl_assert(!git_path_exists("tmp"));
+	assert_name_is("testrepo/BRANCH_FILE.txt");
+}
+
+void test_checkout_icase__overwrites_links_for_files_when_forced(void)
+{
+	checkout_opts.checkout_strategy = GIT_CHECKOUT_FORCE;
+
+	cl_must_pass(symlink_or_fake(repo, "../tmp", "testrepo/NEW.txt"));
+
+	cl_git_pass(git_checkout_tree(repo, obj, &checkout_opts));
+
+	cl_assert(!git_path_exists("tmp"));
+	assert_name_is("testrepo/new.txt");
+}
+
+void test_checkout_icase__overwrites_empty_folders_for_files(void)
+{
+	checkout_opts.checkout_strategy = GIT_CHECKOUT_SAFE|GIT_CHECKOUT_RECREATE_MISSING;
+
+	cl_must_pass(p_mkdir("testrepo/NEW.txt", 0777));
+
+	cl_git_pass(git_checkout_tree(repo, obj, &checkout_opts));
+
+	assert_name_is("testrepo/new.txt");
+	cl_assert(!git_path_isdir("testrepo/new.txt"));
+}
+
+void test_checkout_icase__refuses_to_overwrite_populated_folders_for_files(void)
+{
+	checkout_opts.checkout_strategy = GIT_CHECKOUT_SAFE|GIT_CHECKOUT_RECREATE_MISSING;
+
+	cl_must_pass(p_mkdir("testrepo/BRANCH_FILE.txt", 0777));
+	cl_git_write2file("testrepo/BRANCH_FILE.txt/foobar", "neue file\n", 10, \
+		O_WRONLY | O_CREAT | O_TRUNC, 0644);
+
+	cl_git_fail(git_checkout_tree(repo, obj, &checkout_opts));
+
+	assert_name_is("testrepo/BRANCH_FILE.txt");
+	cl_assert(git_path_isdir("testrepo/BRANCH_FILE.txt"));
+}
+
+void test_checkout_icase__overwrites_folders_for_files_when_forced(void)
+{
+	checkout_opts.checkout_strategy = GIT_CHECKOUT_FORCE;
+
+	cl_must_pass(p_mkdir("testrepo/NEW.txt", 0777));
+	cl_git_write2file("testrepo/NEW.txt/foobar", "neue file\n", 10, \
+		O_WRONLY | O_CREAT | O_TRUNC, 0644);
+
+	cl_git_pass(git_checkout_tree(repo, obj, &checkout_opts));
+
+	assert_name_is("testrepo/new.txt");
+	cl_assert(!git_path_isdir("testrepo/new.txt"));
+}
+
+void test_checkout_icase__refuses_to_overwrite_files_for_folders(void)
+{
+	checkout_opts.checkout_strategy = GIT_CHECKOUT_SAFE|GIT_CHECKOUT_RECREATE_MISSING;
+
+	cl_git_write2file("testrepo/A", "neue file\n", 10, \
+		O_WRONLY | O_CREAT | O_TRUNC, 0644);
+
+	cl_git_fail(git_checkout_tree(repo, obj, &checkout_opts));
+	assert_name_is("testrepo/A");
+	cl_assert(!git_path_isdir("testrepo/A"));
+}
+
+void test_checkout_icase__overwrites_files_for_folders_when_forced(void)
+{
+	checkout_opts.checkout_strategy = GIT_CHECKOUT_FORCE;
+
+	cl_git_write2file("testrepo/A", "neue file\n", 10, \
+		O_WRONLY | O_CREAT | O_TRUNC, 0644);
+
+	cl_git_pass(git_checkout_tree(repo, obj, &checkout_opts));
+	assert_name_is("testrepo/a");
+	cl_assert(git_path_isdir("testrepo/a"));
+}
+
+void test_checkout_icase__refuses_to_overwrite_links_for_folders(void)
+{
+	checkout_opts.checkout_strategy = GIT_CHECKOUT_SAFE|GIT_CHECKOUT_RECREATE_MISSING;
+
+	cl_must_pass(symlink_or_fake(repo, "..", "testrepo/A"));
+
+	cl_git_fail(git_checkout_tree(repo, obj, &checkout_opts));
+
+	cl_assert(!git_path_exists("b.txt"));
+	assert_name_is("testrepo/A");
+}
+
+void test_checkout_icase__overwrites_links_for_folders_when_forced(void)
+{
+	checkout_opts.checkout_strategy = GIT_CHECKOUT_FORCE;
+
+	cl_must_pass(symlink_or_fake(repo, "..", "testrepo/A"));
+
+	cl_git_pass(git_checkout_tree(repo, obj, &checkout_opts));
+
+	cl_assert(!git_path_exists("b.txt"));
+	assert_name_is("testrepo/a");
+}
+
+void test_checkout_icase__ignores_unstaged_casechange(void)
+{
+	git_reference *orig_ref, *br2_ref;
+	git_commit *orig, *br2;
+	git_checkout_options checkout_opts = GIT_CHECKOUT_OPTIONS_INIT;
+
+	checkout_opts.checkout_strategy = GIT_CHECKOUT_SAFE;
+
+	cl_git_pass(git_reference_lookup_resolved(&orig_ref, repo, "HEAD", 100));
+	cl_git_pass(git_commit_lookup(&orig, repo, git_reference_target(orig_ref)));
+	cl_git_pass(git_reset(repo, (git_object *)orig, GIT_RESET_HARD, NULL));
+
+	cl_rename("testrepo/branch_file.txt", "testrepo/Branch_File.txt");
+
+	cl_git_pass(git_reference_lookup_resolved(&br2_ref, repo, "refs/heads/br2", 100));
+	cl_git_pass(git_commit_lookup(&br2, repo, git_reference_target(br2_ref)));
+
+	cl_git_pass(git_checkout_tree(repo, (const git_object *)br2, &checkout_opts));
+
+	git_commit_free(orig);
+	git_commit_free(br2);
+	git_reference_free(orig_ref);
+	git_reference_free(br2_ref);
+}
+
+void test_checkout_icase__conflicts_with_casechanged_subtrees(void)
+{
+	git_reference *orig_ref;
+	git_object *orig, *subtrees;
+	git_oid oid;
+	git_checkout_options checkout_opts = GIT_CHECKOUT_OPTIONS_INIT;
+
+	checkout_opts.checkout_strategy = GIT_CHECKOUT_SAFE;
+
+	cl_git_pass(git_reference_lookup_resolved(&orig_ref, repo, "HEAD", 100));
+	cl_git_pass(git_object_lookup(&orig, repo, git_reference_target(orig_ref), GIT_OBJECT_COMMIT));
+	cl_git_pass(git_reset(repo, (git_object *)orig, GIT_RESET_HARD, NULL));
+
+	cl_must_pass(p_mkdir("testrepo/AB", 0777));
+	cl_must_pass(p_mkdir("testrepo/AB/C", 0777));
+	cl_git_write2file("testrepo/AB/C/3.txt", "Foobar!\n", 8, O_RDWR|O_CREAT, 0666);
+
+	cl_git_pass(git_reference_name_to_id(&oid, repo, "refs/heads/subtrees"));
+	cl_git_pass(git_object_lookup(&subtrees, repo, &oid, GIT_OBJECT_ANY));
+
+	cl_git_fail(git_checkout_tree(repo, subtrees, &checkout_opts));
+
+	git_object_free(orig);
+	git_object_free(subtrees);
+    git_reference_free(orig_ref);
+}
+

node_modules/nodegit/vendor/libgit2/tests/checkout/index.c

@@ -0,0 +1,826 @@
+#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__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
+}

node_modules/nodegit/vendor/libgit2/tests/checkout/nasty.c

@@ -0,0 +1,387 @@
+#include "clar_libgit2.h"
+#include "checkout_helpers.h"
+
+#include "git2/checkout.h"
+#include "repository.h"
+#include "buffer.h"
+#include "futils.h"
+
+static const char *repo_name = "nasty";
+static git_repository *repo;
+static git_checkout_options checkout_opts;
+
+void test_checkout_nasty__initialize(void)
+{
+	repo = cl_git_sandbox_init(repo_name);
+
+	GIT_INIT_STRUCTURE(&checkout_opts, GIT_CHECKOUT_OPTIONS_VERSION);
+	checkout_opts.checkout_strategy = GIT_CHECKOUT_FORCE;
+}
+
+void test_checkout_nasty__cleanup(void)
+{
+	cl_git_sandbox_cleanup();
+}
+
+static void test_checkout_passes(const char *refname, const char *filename)
+{
+	git_oid commit_id;
+	git_commit *commit;
+	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
+	git_buf path = GIT_BUF_INIT;
+
+	cl_git_pass(git_buf_joinpath(&path, repo_name, filename));
+
+	cl_git_pass(git_reference_name_to_id(&commit_id, repo, refname));
+	cl_git_pass(git_commit_lookup(&commit, repo, &commit_id));
+
+	opts.checkout_strategy = GIT_CHECKOUT_FORCE |
+		GIT_CHECKOUT_DONT_UPDATE_INDEX;
+
+	cl_git_pass(git_checkout_tree(repo, (const git_object *)commit, &opts));
+	cl_assert(!git_path_exists(path.ptr));
+
+	git_commit_free(commit);
+	git_buf_dispose(&path);
+}
+
+static void test_checkout_fails(const char *refname, const char *filename)
+{
+	git_oid commit_id;
+	git_commit *commit;
+	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
+	git_buf path = GIT_BUF_INIT;
+
+	cl_git_pass(git_buf_joinpath(&path, repo_name, filename));
+
+	cl_git_pass(git_reference_name_to_id(&commit_id, repo, refname));
+	cl_git_pass(git_commit_lookup(&commit, repo, &commit_id));
+
+	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
+
+	cl_git_fail(git_checkout_tree(repo, (const git_object *)commit, &opts));
+	cl_assert(!git_path_exists(path.ptr));
+
+	git_commit_free(commit);
+	git_buf_dispose(&path);
+}
+
+/* A tree that contains ".git" as a tree, with a blob inside
+ * (".git/foobar").
+ */
+void test_checkout_nasty__dotgit_tree(void)
+{
+	test_checkout_fails("refs/heads/dotgit_tree", ".git/foobar");
+}
+
+/* A tree that contains ".GIT" as a tree, with a blob inside
+ * (".GIT/foobar").
+ */
+void test_checkout_nasty__dotcapitalgit_tree(void)
+{
+	test_checkout_fails("refs/heads/dotcapitalgit_tree", ".GIT/foobar");
+}
+
+/* A tree that contains a tree ".", with a blob inside ("./foobar").
+ */
+void test_checkout_nasty__dot_tree(void)
+{
+	test_checkout_fails("refs/heads/dot_tree", "foobar");
+}
+
+/* A tree that contains a tree ".", with a tree ".git", with a blob
+ * inside ("./.git/foobar").
+ */
+void test_checkout_nasty__dot_dotgit_tree(void)
+{
+	test_checkout_fails("refs/heads/dot_dotgit_tree", ".git/foobar");
+}
+
+/* A tree that contains a tree, with a tree "..", with a tree ".git", with a
+ * blob inside ("foo/../.git/foobar").
+ */
+void test_checkout_nasty__dotdot_dotgit_tree(void)
+{
+	test_checkout_fails("refs/heads/dotdot_dotgit_tree", ".git/foobar");
+}
+
+/* A tree that contains a tree, with a tree "..", with a blob inside
+ * ("foo/../foobar").
+ */
+void test_checkout_nasty__dotdot_tree(void)
+{
+	test_checkout_fails("refs/heads/dotdot_tree", "foobar");
+}
+
+/* A tree that contains a blob with the rogue name ".git/foobar" */
+void test_checkout_nasty__dotgit_path(void)
+{
+	test_checkout_fails("refs/heads/dotgit_path", ".git/foobar");
+}
+
+/* A tree that contains a blob with the rogue name ".GIT/foobar" */
+void test_checkout_nasty__dotcapitalgit_path(void)
+{
+	test_checkout_fails("refs/heads/dotcapitalgit_path", ".GIT/foobar");
+}
+
+/* A tree that contains a blob with the rogue name "./.git/foobar" */
+void test_checkout_nasty__dot_dotgit_path(void)
+{
+	test_checkout_fails("refs/heads/dot_dotgit_path", ".git/foobar");
+}
+
+/* A tree that contains a blob with the rogue name "./.GIT/foobar" */
+void test_checkout_nasty__dot_dotcapitalgit_path(void)
+{
+	test_checkout_fails("refs/heads/dot_dotcapitalgit_path", ".GIT/foobar");
+}
+
+/* A tree that contains a blob with the rogue name "foo/../.git/foobar" */
+void test_checkout_nasty__dotdot_dotgit_path(void)
+{
+	test_checkout_fails("refs/heads/dotdot_dotgit_path", ".git/foobar");
+}
+
+/* A tree that contains a blob with the rogue name "foo/../.GIT/foobar" */
+void test_checkout_nasty__dotdot_dotcapitalgit_path(void)
+{
+	test_checkout_fails("refs/heads/dotdot_dotcapitalgit_path", ".GIT/foobar");
+}
+
+/* A tree that contains a blob with the rogue name "foo/." */
+void test_checkout_nasty__dot_path(void)
+{
+	test_checkout_fails("refs/heads/dot_path", "./foobar");
+}
+
+/* A tree that contains a blob with the rogue name "foo/." */
+void test_checkout_nasty__dot_path_two(void)
+{
+	test_checkout_fails("refs/heads/dot_path_two", "foo/.");
+}
+
+/* A tree that contains a blob with the rogue name "foo/../foobar" */
+void test_checkout_nasty__dotdot_path(void)
+{
+	test_checkout_fails("refs/heads/dotdot_path", "foobar");
+}
+
+/* A tree that contains an entry with a backslash ".git\foobar"  */
+void test_checkout_nasty__dotgit_backslash_path(void)
+{
+#ifdef GIT_WIN32
+	test_checkout_fails("refs/heads/dotgit_backslash_path", ".git/foobar");
+#endif
+}
+
+/* A tree that contains an entry with a backslash ".GIT\foobar"  */
+void test_checkout_nasty__dotcapitalgit_backslash_path(void)
+{
+#ifdef GIT_WIN32
+	test_checkout_fails("refs/heads/dotcapitalgit_backslash_path", ".GIT/foobar");
+#endif
+}
+
+/* A tree that contains an entry with a backslash ".\.GIT\foobar"  */
+void test_checkout_nasty__dot_backslash_dotcapitalgit_path(void)
+{
+#ifdef GIT_WIN32
+	test_checkout_fails("refs/heads/dot_backslash_dotcapitalgit_path", ".GIT/foobar");
+#endif
+}
+
+/* A tree that contains an entry ".git.", because Win32 APIs will drop the
+ * trailing slash.
+ */
+void test_checkout_nasty__dot_git_dot(void)
+{
+#ifdef GIT_WIN32
+	test_checkout_fails("refs/heads/dot_git_dot", ".git/foobar");
+#endif
+}
+
+/* A tree that contains an entry "git~1", because that is typically the
+ * short name for ".git".
+ */
+void test_checkout_nasty__git_tilde1(void)
+{
+	test_checkout_fails("refs/heads/git_tilde1", ".git/foobar");
+	test_checkout_fails("refs/heads/git_tilde1", "git~1/foobar");
+}
+
+/* A tree that contains an entry "git~2", when we have forced the short
+ * name for ".git" into "GIT~2".
+ */
+void test_checkout_nasty__git_custom_shortname(void)
+{
+#ifdef GIT_WIN32
+	if (!cl_sandbox_supports_8dot3())
+		clar__skip();
+
+	cl_must_pass(p_rename("nasty/.git", "nasty/_temp"));
+	cl_git_write2file("nasty/git~1", "", 0, O_RDWR|O_CREAT, 0666);
+	cl_must_pass(p_rename("nasty/_temp", "nasty/.git"));
+	test_checkout_fails("refs/heads/git_tilde2", ".git/foobar");
+#endif
+}
+
+/* A tree that contains an entry "git~3", which should be allowed, since
+ * it is not the typical short name ("GIT~1") or the actual short name
+ * ("GIT~2") for ".git".
+ */
+void test_checkout_nasty__only_looks_like_a_git_shortname(void)
+{
+#ifdef GIT_WIN32
+	git_oid commit_id;
+	git_commit *commit;
+	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
+
+	cl_must_pass(p_rename("nasty/.git", "nasty/_temp"));
+	cl_git_write2file("nasty/git~1", "", 0, O_RDWR|O_CREAT, 0666);
+	cl_must_pass(p_rename("nasty/_temp", "nasty/.git"));
+
+	cl_git_pass(git_reference_name_to_id(&commit_id, repo, "refs/heads/git_tilde3"));
+	cl_git_pass(git_commit_lookup(&commit, repo, &commit_id));
+
+	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
+
+	cl_git_pass(git_checkout_tree(repo, (const git_object *)commit, &opts));
+	cl_assert(git_path_exists("nasty/git~3/foobar"));
+
+	git_commit_free(commit);
+#endif
+}
+
+/* A tree that contains an entry "git:", because Win32 APIs will reject
+ * that as looking too similar to a drive letter.
+ */
+void test_checkout_nasty__dot_git_colon(void)
+{
+#ifdef GIT_WIN32
+	test_checkout_fails("refs/heads/dot_git_colon", ".git/foobar");
+#endif
+}
+
+/* A tree that contains an entry "git:foo", because Win32 APIs will turn
+ * that into ".git".
+ */
+void test_checkout_nasty__dot_git_colon_stuff(void)
+{
+#ifdef GIT_WIN32
+	test_checkout_fails("refs/heads/dot_git_colon_stuff", ".git/foobar");
+#endif
+}
+
+/* A tree that contains an entry ".git::$INDEX_ALLOCATION" because NTFS
+ * will interpret that as a synonym to ".git", even when mounted via SMB
+ * on macOS.
+ */
+void test_checkout_nasty__dotgit_alternate_data_stream(void)
+{
+	test_checkout_fails("refs/heads/dotgit_alternate_data_stream", ".git/dummy-file");
+	test_checkout_fails("refs/heads/dotgit_alternate_data_stream", ".git::$INDEX_ALLOCATION/dummy-file");
+}
+
+/* Trees that contains entries with a tree ".git" that contain
+ * byte sequences:
+ * { 0xe2, 0x80, 0x8c }
+ * { 0xe2, 0x80, 0x8d }
+ * { 0xe2, 0x80, 0x8e }
+ * { 0xe2, 0x80, 0x8f }
+ * { 0xe2, 0x80, 0xaa }
+ * { 0xe2, 0x80, 0xab }
+ * { 0xe2, 0x80, 0xac }
+ * { 0xe2, 0x80, 0xad }
+ * { 0xe2, 0x81, 0xae }
+ * { 0xe2, 0x81, 0xaa }
+ * { 0xe2, 0x81, 0xab }
+ * { 0xe2, 0x81, 0xac }
+ * { 0xe2, 0x81, 0xad }
+ * { 0xe2, 0x81, 0xae }
+ * { 0xe2, 0x81, 0xaf }
+ * { 0xef, 0xbb, 0xbf }
+ * Because these map to characters that HFS filesystems "ignore".  Thus
+ * ".git<U+200C>" will map to ".git".
+ */
+void test_checkout_nasty__dot_git_hfs_ignorable(void)
+{
+#ifdef __APPLE__
+	test_checkout_fails("refs/heads/dotgit_hfs_ignorable_1", ".git/foobar");
+	test_checkout_fails("refs/heads/dotgit_hfs_ignorable_2", ".git/foobar");
+	test_checkout_fails("refs/heads/dotgit_hfs_ignorable_3", ".git/foobar");
+	test_checkout_fails("refs/heads/dotgit_hfs_ignorable_4", ".git/foobar");
+	test_checkout_fails("refs/heads/dotgit_hfs_ignorable_5", ".git/foobar");
+	test_checkout_fails("refs/heads/dotgit_hfs_ignorable_6", ".git/foobar");
+	test_checkout_fails("refs/heads/dotgit_hfs_ignorable_7", ".git/foobar");
+	test_checkout_fails("refs/heads/dotgit_hfs_ignorable_8", ".git/foobar");
+	test_checkout_fails("refs/heads/dotgit_hfs_ignorable_9", ".git/foobar");
+	test_checkout_fails("refs/heads/dotgit_hfs_ignorable_10", ".git/foobar");
+	test_checkout_fails("refs/heads/dotgit_hfs_ignorable_11", ".git/foobar");
+	test_checkout_fails("refs/heads/dotgit_hfs_ignorable_12", ".git/foobar");
+	test_checkout_fails("refs/heads/dotgit_hfs_ignorable_13", ".git/foobar");
+	test_checkout_fails("refs/heads/dotgit_hfs_ignorable_14", ".git/foobar");
+	test_checkout_fails("refs/heads/dotgit_hfs_ignorable_15", ".git/foobar");
+	test_checkout_fails("refs/heads/dotgit_hfs_ignorable_16", ".git/foobar");
+#endif
+}
+
+void test_checkout_nasty__honors_core_protecthfs(void)
+{
+	cl_repo_set_bool(repo, "core.protectHFS", true);
+
+	test_checkout_fails("refs/heads/dotgit_hfs_ignorable_1", ".git/foobar");
+	test_checkout_fails("refs/heads/dotgit_hfs_ignorable_2", ".git/foobar");
+	test_checkout_fails("refs/heads/dotgit_hfs_ignorable_3", ".git/foobar");
+	test_checkout_fails("refs/heads/dotgit_hfs_ignorable_4", ".git/foobar");
+	test_checkout_fails("refs/heads/dotgit_hfs_ignorable_5", ".git/foobar");
+	test_checkout_fails("refs/heads/dotgit_hfs_ignorable_6", ".git/foobar");
+	test_checkout_fails("refs/heads/dotgit_hfs_ignorable_7", ".git/foobar");
+	test_checkout_fails("refs/heads/dotgit_hfs_ignorable_8", ".git/foobar");
+	test_checkout_fails("refs/heads/dotgit_hfs_ignorable_9", ".git/foobar");
+	test_checkout_fails("refs/heads/dotgit_hfs_ignorable_10", ".git/foobar");
+	test_checkout_fails("refs/heads/dotgit_hfs_ignorable_11", ".git/foobar");
+	test_checkout_fails("refs/heads/dotgit_hfs_ignorable_12", ".git/foobar");
+	test_checkout_fails("refs/heads/dotgit_hfs_ignorable_13", ".git/foobar");
+	test_checkout_fails("refs/heads/dotgit_hfs_ignorable_14", ".git/foobar");
+	test_checkout_fails("refs/heads/dotgit_hfs_ignorable_15", ".git/foobar");
+	test_checkout_fails("refs/heads/dotgit_hfs_ignorable_16", ".git/foobar");
+}
+
+void test_checkout_nasty__honors_core_protectntfs(void)
+{
+	cl_repo_set_bool(repo, "core.protectNTFS", true);
+
+	test_checkout_fails("refs/heads/dotgit_backslash_path", ".git/foobar");
+	test_checkout_fails("refs/heads/dotcapitalgit_backslash_path", ".GIT/foobar");
+	test_checkout_fails("refs/heads/dot_git_dot", ".git/foobar");
+	test_checkout_fails("refs/heads/git_tilde1", ".git/foobar");
+}
+
+void test_checkout_nasty__symlink1(void)
+{
+	test_checkout_passes("refs/heads/symlink1", ".git/foobar");
+}
+
+void test_checkout_nasty__symlink2(void)
+{
+	test_checkout_passes("refs/heads/symlink2", ".git/foobar");
+}
+
+void test_checkout_nasty__symlink3(void)
+{
+	test_checkout_passes("refs/heads/symlink3", ".git/foobar");
+}
+
+void test_checkout_nasty__gitmodules_symlink(void)
+{
+	cl_repo_set_bool(repo, "core.protectHFS", true);
+	test_checkout_fails("refs/heads/gitmodules-symlink", ".gitmodules");
+	cl_repo_set_bool(repo, "core.protectHFS", false);
+
+	cl_repo_set_bool(repo, "core.protectNTFS", true);
+	test_checkout_fails("refs/heads/gitmodules-symlink", ".gitmodules");
+	cl_repo_set_bool(repo, "core.protectNTFS", false);
+
+	test_checkout_fails("refs/heads/gitmodules-symlink", ".gitmodules");
+}

node_modules/nodegit/vendor/libgit2/tests/checkout/typechange.c

@@ -0,0 +1,335 @@
+#include "clar_libgit2.h"
+#include "diff_generate.h"
+#include "git2/checkout.h"
+#include "path.h"
+#include "posix.h"
+#include "futils.h"
+
+static git_repository *g_repo = NULL;
+
+/*
+From the test repo used for this test:
+--------------------------------------
+
+This is a test repo for libgit2 where tree entries have type changes
+
+The key types that could be found in tree entries are:
+
+1 - GIT_FILEMODE_NEW             = 0000000
+2 - GIT_FILEMODE_TREE            = 0040000
+3 - GIT_FILEMODE_BLOB            = 0100644
+4 - GIT_FILEMODE_BLOB_EXECUTABLE = 0100755
+5 - GIT_FILEMODE_LINK            = 0120000
+6 - GIT_FILEMODE_COMMIT          = 0160000
+
+I will try to have every type of transition somewhere in the history
+of this repo.
+
+Commits
+-------
+Initial commit - a(1)    b(1)    c(1)    d(1)    e(1)
+Create content - a(1->2) b(1->3) c(1->4) d(1->5) e(1->6)
+Changes #1     - a(2->3) b(3->4) c(4->5) d(5->6) e(6->2)
+Changes #2     - a(3->5) b(4->6) c(5->2) d(6->3) e(2->4)
+Changes #3     - a(5->3) b(6->4) c(2->5) d(3->6) e(4->2)
+Changes #4     - a(3->2) b(4->3) c(5->4) d(6->5) e(2->6)
+Changes #5     - a(2->1) b(3->1) c(4->1) d(5->1) e(6->1)
+
+*/
+
+static const char *g_typechange_oids[] = {
+	"79b9f23e85f55ea36a472a902e875bc1121a94cb",
+	"9bdb75b73836a99e3dbeea640a81de81031fdc29",
+	"0e7ed140b514b8cae23254cb8656fe1674403aff",
+	"9d0235c7a7edc0889a18f97a42ee6db9fe688447",
+	"9b19edf33a03a0c59cdfc113bfa5c06179bf9b1a",
+	"1b63caae4a5ca96f78e8dfefc376c6a39a142475",
+	"6eae26c90e8ccc4d16208972119c40635489c6f0",
+	NULL
+};
+
+static bool g_typechange_empty[] = {
+	true, false, false, false, false, false, true, true
+};
+
+static const int g_typechange_expected_conflicts[] = {
+	1, 2, 3, 3, 2, 3, 2
+};
+
+static const int g_typechange_expected_untracked[] = {
+	6, 4, 3, 2, 3, 2, 5
+};
+
+void test_checkout_typechange__initialize(void)
+{
+	g_repo = cl_git_sandbox_init("typechanges");
+
+	cl_fixture_sandbox("submod2_target");
+	p_rename("submod2_target/.gitted", "submod2_target/.git");
+}
+
+void test_checkout_typechange__cleanup(void)
+{
+	cl_git_sandbox_cleanup();
+	cl_fixture_cleanup("submod2_target");
+}
+
+static void assert_file_exists(const char *path)
+{
+	cl_assert_(git_path_isfile(path), path);
+}
+
+static void assert_dir_exists(const char *path)
+{
+	cl_assert_(git_path_isdir(path), path);
+}
+
+static void assert_workdir_matches_tree(
+	git_repository *repo, const git_oid *id, const char *root, bool recurse)
+{
+	git_object *obj;
+	git_tree *tree;
+	size_t i, max_i;
+	git_buf path = GIT_BUF_INIT;
+
+	if (!root)
+		root = git_repository_workdir(repo);
+	cl_assert(root);
+
+	cl_git_pass(git_object_lookup(&obj, repo, id, GIT_OBJECT_ANY));
+	cl_git_pass(git_object_peel((git_object **)&tree, obj, GIT_OBJECT_TREE));
+	git_object_free(obj);
+
+	max_i = git_tree_entrycount(tree);
+
+	for (i = 0; i < max_i; ++i) {
+		const git_tree_entry *te = git_tree_entry_byindex(tree, i);
+		cl_assert(te);
+
+		cl_git_pass(git_buf_joinpath(&path, root, git_tree_entry_name(te)));
+
+		switch (git_tree_entry_type(te)) {
+		case GIT_OBJECT_COMMIT:
+			assert_dir_exists(path.ptr);
+			break;
+		case GIT_OBJECT_TREE:
+			assert_dir_exists(path.ptr);
+			if (recurse)
+				assert_workdir_matches_tree(
+					repo, git_tree_entry_id(te), path.ptr, true);
+			break;
+		case GIT_OBJECT_BLOB:
+			switch (git_tree_entry_filemode(te)) {
+			case GIT_FILEMODE_BLOB:
+			case GIT_FILEMODE_BLOB_EXECUTABLE:
+				assert_file_exists(path.ptr);
+				/* because of cross-platform, don't confirm exec bit yet */
+				break;
+			case GIT_FILEMODE_LINK:
+				cl_assert_(git_path_exists(path.ptr), path.ptr);
+				/* because of cross-platform, don't confirm link yet */
+				break;
+			default:
+				cl_assert(false); /* really?! */
+			}
+			break;
+		default:
+			cl_assert(false); /* really?!! */
+		}
+	}
+
+	git_tree_free(tree);
+	git_buf_dispose(&path);
+}
+
+void test_checkout_typechange__checkout_typechanges_safe(void)
+{
+	int i;
+	git_object *obj;
+	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
+
+	for (i = 0; g_typechange_oids[i] != NULL; ++i) {
+		cl_git_pass(git_revparse_single(&obj, g_repo, g_typechange_oids[i]));
+
+		opts.checkout_strategy = !i ? GIT_CHECKOUT_FORCE : GIT_CHECKOUT_SAFE;
+
+		cl_git_pass(git_checkout_tree(g_repo, obj, &opts));
+
+		cl_git_pass(
+			git_repository_set_head_detached(g_repo, git_object_id(obj)));
+
+		assert_workdir_matches_tree(g_repo, git_object_id(obj), NULL, true);
+
+		git_object_free(obj);
+
+		if (!g_typechange_empty[i]) {
+			cl_assert(git_path_isdir("typechanges"));
+			cl_assert(git_path_exists("typechanges/a"));
+			cl_assert(git_path_exists("typechanges/b"));
+			cl_assert(git_path_exists("typechanges/c"));
+			cl_assert(git_path_exists("typechanges/d"));
+			cl_assert(git_path_exists("typechanges/e"));
+		} else {
+			cl_assert(git_path_isdir("typechanges"));
+			cl_assert(!git_path_exists("typechanges/a"));
+			cl_assert(!git_path_exists("typechanges/b"));
+			cl_assert(!git_path_exists("typechanges/c"));
+			cl_assert(!git_path_exists("typechanges/d"));
+			cl_assert(!git_path_exists("typechanges/e"));
+		}
+	}
+}
+
+typedef struct {
+	int conflicts;
+	int dirty;
+	int updates;
+	int untracked;
+	int ignored;
+} notify_counts;
+
+static int notify_counter(
+	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)
+{
+	notify_counts *cts = payload;
+
+	GIT_UNUSED(path);
+	GIT_UNUSED(baseline);
+	GIT_UNUSED(target);
+	GIT_UNUSED(workdir);
+
+	switch (why) {
+	case GIT_CHECKOUT_NOTIFY_CONFLICT:  cts->conflicts++; break;
+	case GIT_CHECKOUT_NOTIFY_DIRTY:     cts->dirty++;     break;
+	case GIT_CHECKOUT_NOTIFY_UPDATED:   cts->updates++;   break;
+	case GIT_CHECKOUT_NOTIFY_UNTRACKED: cts->untracked++; break;
+	case GIT_CHECKOUT_NOTIFY_IGNORED:   cts->ignored++;   break;
+	default: break;
+	}
+
+	return 0;
+}
+
+static void force_create_file(const char *file)
+{
+	int error = git_futils_rmdir_r(file, NULL,
+		GIT_RMDIR_REMOVE_FILES | GIT_RMDIR_REMOVE_BLOCKERS);
+	cl_assert(!error || error == GIT_ENOTFOUND);
+	cl_git_pass(git_futils_mkpath2file(file, 0777));
+	cl_git_rewritefile(file, "yowza!!");
+}
+
+static int make_submodule_dirty(git_submodule *sm, const char *name, void *payload)
+{
+	git_buf submodulepath = GIT_BUF_INIT;
+	git_buf dirtypath = GIT_BUF_INIT;
+	git_repository *submodule_repo;
+
+	GIT_UNUSED(name);
+	GIT_UNUSED(payload);
+
+	/* remove submodule directory in preparation for init and repo_init */
+	cl_git_pass(git_buf_joinpath(
+		&submodulepath,
+		git_repository_workdir(g_repo),
+		git_submodule_path(sm)
+	));
+	git_futils_rmdir_r(git_buf_cstr(&submodulepath), NULL, GIT_RMDIR_REMOVE_FILES);
+
+	/* initialize submodule's repository */
+	cl_git_pass(git_submodule_repo_init(&submodule_repo, sm, 0));
+
+	/* create a file in the submodule workdir to make it dirty */
+	cl_git_pass(
+		git_buf_joinpath(&dirtypath, git_repository_workdir(submodule_repo), "dirty"));
+	force_create_file(git_buf_cstr(&dirtypath));
+
+	git_buf_dispose(&dirtypath);
+	git_buf_dispose(&submodulepath);
+	git_repository_free(submodule_repo);
+
+	return 0;
+}
+
+void test_checkout_typechange__checkout_with_conflicts(void)
+{
+	int i;
+	git_object *obj;
+	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
+	notify_counts cts = {0};
+
+	opts.notify_flags =
+		GIT_CHECKOUT_NOTIFY_CONFLICT | GIT_CHECKOUT_NOTIFY_UNTRACKED;
+	opts.notify_cb = notify_counter;
+	opts.notify_payload = &cts;
+
+	for (i = 0; g_typechange_oids[i] != NULL; ++i) {
+		cl_git_pass(git_revparse_single(&obj, g_repo, g_typechange_oids[i]));
+
+		force_create_file("typechanges/a/blocker");
+		force_create_file("typechanges/b");
+		force_create_file("typechanges/c/sub/sub/file");
+		git_futils_rmdir_r("typechanges/d", NULL, GIT_RMDIR_REMOVE_FILES);
+		p_mkdir("typechanges/d", 0777); /* intentionally empty dir */
+		force_create_file("typechanges/untracked");
+		cl_git_pass(git_submodule_foreach(g_repo, make_submodule_dirty, NULL));
+
+		opts.checkout_strategy = GIT_CHECKOUT_SAFE;
+		memset(&cts, 0, sizeof(cts));
+
+		cl_git_fail(git_checkout_tree(g_repo, obj, &opts));
+		cl_assert_equal_i(cts.conflicts, g_typechange_expected_conflicts[i]);
+		cl_assert_equal_i(cts.untracked, g_typechange_expected_untracked[i]);
+		cl_assert_equal_i(cts.dirty, 0);
+		cl_assert_equal_i(cts.updates, 0);
+		cl_assert_equal_i(cts.ignored, 0);
+
+		opts.checkout_strategy =
+			GIT_CHECKOUT_FORCE | GIT_CHECKOUT_REMOVE_UNTRACKED;
+		memset(&cts, 0, sizeof(cts));
+
+		cl_assert(git_path_exists("typechanges/untracked"));
+
+		cl_git_pass(git_checkout_tree(g_repo, obj, &opts));
+		cl_assert_equal_i(0, cts.conflicts);
+
+		cl_assert(!git_path_exists("typechanges/untracked"));
+
+		cl_git_pass(
+			git_repository_set_head_detached(g_repo, git_object_id(obj)));
+
+		assert_workdir_matches_tree(g_repo, git_object_id(obj), NULL, true);
+
+		git_object_free(obj);
+	}
+}
+
+void test_checkout_typechange__status_char(void)
+{
+	size_t i;
+	git_oid oid;
+	git_commit *commit;
+	git_diff *diff;
+	const git_diff_delta *delta;
+	git_diff_options diffopts = GIT_DIFF_OPTIONS_INIT;
+	char expected[8] = {'M', 'M', 'R', 'T', 'D', 'R', 'A', 'R'};
+
+	git_oid_fromstr(&oid, "9b19edf33a03a0c59cdfc113bfa5c06179bf9b1a");
+	cl_git_pass(git_commit_lookup(&commit, g_repo, &oid));
+	diffopts.flags |= GIT_DIFF_INCLUDE_TYPECHANGE;
+	cl_git_pass(git_diff__commit(&diff, g_repo, commit, &diffopts));
+	cl_git_pass(git_diff_find_similar(diff, NULL));
+
+	for (i = 0; i < git_diff_num_deltas(diff); i++) {
+		delta = git_diff_get_delta(diff, i);
+		cl_assert_equal_i(expected[i], git_diff_status_char(delta->status));
+	}
+
+	git_diff_free(diff);
+	git_commit_free(commit);
+}