thodg/libgit2

diff --git a/tests/resources/win32-forbidden/.gitted/HEAD b/tests/resources/win32-forbidden/.gitted/HEAD
new file mode 100644
index 0000000..cb089cd
--- /dev/null
+++ b/tests/resources/win32-forbidden/.gitted/HEAD
@@ -0,0 +1 @@
+ref: refs/heads/master
diff --git a/tests/resources/win32-forbidden/.gitted/config b/tests/resources/win32-forbidden/.gitted/config
new file mode 100644
index 0000000..6c9406b
--- /dev/null
+++ b/tests/resources/win32-forbidden/.gitted/config
@@ -0,0 +1,7 @@
+[core]
+	repositoryformatversion = 0
+	filemode = true
+	bare = false
+	logallrefupdates = true
+	ignorecase = true
+	precomposeunicode = true
diff --git a/tests/resources/win32-forbidden/.gitted/index b/tests/resources/win32-forbidden/.gitted/index
new file mode 100644
index 0000000..1202dd9
Binary files /dev/null and b/tests/resources/win32-forbidden/.gitted/index differ
diff --git a/tests/resources/win32-forbidden/.gitted/info/exclude b/tests/resources/win32-forbidden/.gitted/info/exclude
new file mode 100644
index 0000000..a5196d1
--- /dev/null
+++ b/tests/resources/win32-forbidden/.gitted/info/exclude
@@ -0,0 +1,6 @@
+# git ls-files --others --exclude-from=.git/info/exclude
+# Lines that start with '#' are comments.
+# For a project mostly in C, the following would be a good set of
+# exclude patterns (uncomment them if you want to use them):
+# *.[oa]
+# *~
diff --git a/tests/resources/win32-forbidden/.gitted/objects/10/68072702a28a82c78902cf5bf82c3864cf4356 b/tests/resources/win32-forbidden/.gitted/objects/10/68072702a28a82c78902cf5bf82c3864cf4356
new file mode 100644
index 0000000..2d3b31a
Binary files /dev/null and b/tests/resources/win32-forbidden/.gitted/objects/10/68072702a28a82c78902cf5bf82c3864cf4356 differ
diff --git a/tests/resources/win32-forbidden/.gitted/objects/17/6a458f94e0ea5272ce67c36bf30b6be9caf623 b/tests/resources/win32-forbidden/.gitted/objects/17/6a458f94e0ea5272ce67c36bf30b6be9caf623
new file mode 100644
index 0000000..ef83166
Binary files /dev/null and b/tests/resources/win32-forbidden/.gitted/objects/17/6a458f94e0ea5272ce67c36bf30b6be9caf623 differ
diff --git a/tests/resources/win32-forbidden/.gitted/objects/2d/7445a749d25269f32724aa621cb70b196bcc40 b/tests/resources/win32-forbidden/.gitted/objects/2d/7445a749d25269f32724aa621cb70b196bcc40
new file mode 100644
index 0000000..baddb1f
Binary files /dev/null and b/tests/resources/win32-forbidden/.gitted/objects/2d/7445a749d25269f32724aa621cb70b196bcc40 differ
diff --git a/tests/resources/win32-forbidden/.gitted/objects/34/96991d72d500af36edef68bbfcccd1661d88db b/tests/resources/win32-forbidden/.gitted/objects/34/96991d72d500af36edef68bbfcccd1661d88db
new file mode 100644
index 0000000..71b6172
--- /dev/null
+++ b/tests/resources/win32-forbidden/.gitted/objects/34/96991d72d500af36edef68bbfcccd1661d88db
@@ -0,0 +1,3 @@
+x
���
+!�[�w����hӢ}/�8�B*8N�~�@gu��՜S�	͡7�a�
+�f�2��"s
e.�%��Q	��ؽ��຾m[�k�j���m�G�q_N��3LBJŔF
G:B���������VRO�	ͿҖj!��=�
\ No newline at end of file
diff --git a/tests/resources/win32-forbidden/.gitted/objects/8f/45aad6f23b9509f8786c617e19c127ae76609a b/tests/resources/win32-forbidden/.gitted/objects/8f/45aad6f23b9509f8786c617e19c127ae76609a
new file mode 100644
index 0000000..8bcd980
--- /dev/null
+++ b/tests/resources/win32-forbidden/.gitted/objects/8f/45aad6f23b9509f8786c617e19c127ae76609a
@@ -0,0 +1,2 @@
+x
�A
+� �֝�/k�.� ]`����h޾�"=�˕�e*���U��+��M�%���O4�c�˱���
\ No newline at end of file
diff --git a/tests/resources/win32-forbidden/.gitted/objects/da/623abd956bb2fd8052c708c7ed43f05d192d37 b/tests/resources/win32-forbidden/.gitted/objects/da/623abd956bb2fd8052c708c7ed43f05d192d37
new file mode 100644
index 0000000..9234623
Binary files /dev/null and b/tests/resources/win32-forbidden/.gitted/objects/da/623abd956bb2fd8052c708c7ed43f05d192d37 differ
diff --git a/tests/resources/win32-forbidden/.gitted/objects/ea/c7621a652e5261ef1c1d3e7ae31b0d84fcbaba b/tests/resources/win32-forbidden/.gitted/objects/ea/c7621a652e5261ef1c1d3e7ae31b0d84fcbaba
new file mode 100644
index 0000000..32b3f02
--- /dev/null
+++ b/tests/resources/win32-forbidden/.gitted/objects/ea/c7621a652e5261ef1c1d3e7ae31b0d84fcbaba
@@ -0,0 +1,3 @@
+x
��M
+B!F��;BoW}BD��ۀ��
+>_m?�Bg�q���VJ �=F�����dJT�qD�d�B��N�'��6R�p
��S+k�p�����G����rAR*Tz!��	�vVG���n5�l_��;��U�>H
\ No newline at end of file
diff --git a/tests/resources/win32-forbidden/.gitted/refs/heads/master b/tests/resources/win32-forbidden/.gitted/refs/heads/master
new file mode 100644
index 0000000..47fce0f
--- /dev/null
+++ b/tests/resources/win32-forbidden/.gitted/refs/heads/master
@@ -0,0 +1 @@
+3496991d72d500af36edef68bbfcccd1661d88db
diff --git a/tests/win32/forbidden.c b/tests/win32/forbidden.c
new file mode 100644
index 0000000..e02f411
--- /dev/null
+++ b/tests/win32/forbidden.c
@@ -0,0 +1,183 @@
+#include "clar_libgit2.h"
+
+#include "repository.h"
+#include "buffer.h"
+#include "submodule.h"
+
+static const char *repo_name = "win32-forbidden";
+static git_repository *repo;
+
+void test_win32_forbidden__initialize(void)
+{
+	repo = cl_git_sandbox_init(repo_name);
+}
+
+void test_win32_forbidden__cleanup(void)
+{
+	cl_git_sandbox_cleanup();
+}
+
+void test_win32_forbidden__can_open_index(void)
+{
+	git_index *index;
+	cl_git_pass(git_repository_index(&index, repo));
+	cl_assert_equal_i(7, git_index_entrycount(index));
+
+	/* ensure we can even write the unmodified index */
+	cl_git_pass(git_index_write(index));
+
+	git_index_free(index);
+}
+
+void test_win32_forbidden__can_add_forbidden_filename_with_entry(void)
+{
+	git_index *index;
+	git_index_entry entry = {{0}};
+
+	cl_git_pass(git_repository_index(&index, repo));
+
+	entry.path = "aux";
+	entry.mode = GIT_FILEMODE_BLOB;
+	git_oid_fromstr(&entry.id, "da623abd956bb2fd8052c708c7ed43f05d192d37");
+
+	cl_git_pass(git_index_add(index, &entry));
+
+	git_index_free(index);
+}
+
+void test_win32_forbidden__cannot_add_dot_git_even_with_entry(void)
+{
+	git_index *index;
+	git_index_entry entry = {{0}};
+
+	cl_git_pass(git_repository_index(&index, repo));
+
+	entry.path = "foo/.git";
+	entry.mode = GIT_FILEMODE_BLOB;
+	git_oid_fromstr(&entry.id, "da623abd956bb2fd8052c708c7ed43f05d192d37");
+
+	cl_git_fail(git_index_add(index, &entry));
+
+	git_index_free(index);
+}
+
+void test_win32_forbidden__cannot_add_forbidden_filename_from_filesystem(void)
+{
+	git_index *index;
+
+	/* since our function calls are very low-level, we can create `aux.`,
+	 * but we should not be able to add it to the index
+	 */
+	cl_git_pass(git_repository_index(&index, repo));
+	cl_git_write2file("win32-forbidden/aux.", "foo\n", 4, O_RDWR | O_CREAT, 0666);
+
+#ifdef GIT_WIN32
+	cl_git_fail(git_index_add_bypath(index, "aux."));
+#else
+	cl_git_pass(git_index_add_bypath(index, "aux."));
+#endif
+
+	cl_must_pass(p_unlink("win32-forbidden/aux."));
+	git_index_free(index);
+}
+
+static int dummy_submodule_cb(
+	git_submodule *sm, const char *name, void *payload)
+{
+	GIT_UNUSED(sm);
+	GIT_UNUSED(name);
+	GIT_UNUSED(payload);
+	return 0;
+}
+
+void test_win32_forbidden__can_diff_tree_to_index(void)
+{
+	git_diff *diff;
+	git_tree *tree;
+
+	cl_git_pass(git_repository_head_tree(&tree, repo));
+	cl_git_pass(git_diff_tree_to_index(&diff, repo, tree, NULL, NULL));
+	cl_assert_equal_i(0, git_diff_num_deltas(diff));
+	git_diff_free(diff);
+	git_tree_free(tree);
+}
+
+void test_win32_forbidden__can_diff_tree_to_tree(void)
+{
+	git_diff *diff;
+	git_tree *tree;
+
+	cl_git_pass(git_repository_head_tree(&tree, repo));
+	cl_git_pass(git_diff_tree_to_tree(&diff, repo, tree, tree, NULL));
+	cl_assert_equal_i(0, git_diff_num_deltas(diff));
+	git_diff_free(diff);
+	git_tree_free(tree);
+}
+
+void test_win32_forbidden__can_diff_index_to_workdir(void)
+{
+	git_index *index;
+	git_diff *diff;
+	const git_diff_delta *delta;
+	git_tree *tree;
+	size_t i;
+
+	cl_git_pass(git_repository_index(&index, repo));
+	cl_git_pass(git_repository_head_tree(&tree, repo));
+	cl_git_pass(git_diff_index_to_workdir(&diff, repo, index, NULL));
+
+	for (i = 0; i < git_diff_num_deltas(diff); i++) {
+		delta = git_diff_get_delta(diff, i);
+		cl_assert_equal_i(GIT_DELTA_DELETED, delta->status);
+	}
+
+	git_diff_free(diff);
+	git_tree_free(tree);
+	git_index_free(index);
+}
+
+void test_win32_forbidden__checking_out_forbidden_index_fails(void)
+{
+#ifdef GIT_WIN32
+	git_index *index;
+	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
+	git_diff *diff;
+	const git_diff_delta *delta;
+	git_tree *tree;
+	size_t num_deltas, i;
+
+	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
+
+	cl_git_pass(git_repository_index(&index, repo));
+	cl_git_fail(git_checkout_index(repo, index, &opts));
+
+	cl_git_pass(git_repository_head_tree(&tree, repo));
+	cl_git_pass(git_diff_index_to_workdir(&diff, repo, index, NULL));
+
+	num_deltas = git_diff_num_deltas(diff);
+
+	cl_assert(num_deltas > 0);
+
+	for (i = 0; i < num_deltas; i++) {
+		delta = git_diff_get_delta(diff, i);
+		cl_assert_equal_i(GIT_DELTA_DELETED, delta->status);
+	}
+
+	git_diff_free(diff);
+	git_tree_free(tree);
+	git_index_free(index);
+#endif
+}
+
+void test_win32_forbidden__can_query_submodules(void)
+{
+	cl_git_pass(git_submodule_foreach(repo, dummy_submodule_cb, NULL));
+}
+
+void test_win32_forbidden__can_blame_file(void)
+{
+	git_blame *blame;
+
+	cl_git_pass(git_blame_file(&blame, repo, "aux", NULL));
+	git_blame_free(blame);
+}