Merge pull request #5176 from pks-t/pks/repo-template-head

repository: do not initialize HEAD if it's provided by templates

3 files changed, 335 insertions, 301 deletions

diff --git a/src/repository.c b/src/repository.c
index d8eb4ba07..002e84f91 100644
--- a/src/repository.c
+++ b/src/repository.c
@@ -1360,10 +1360,11 @@ int git_repository_create_head(const char *git_dir, const char *ref_name)
 	git_buf ref_path = GIT_BUF_INIT;
 	git_filebuf ref = GIT_FILEBUF_INIT;
 	const char *fmt;
+	int error;
 
-	if (git_buf_joinpath(&ref_path, git_dir, GIT_HEAD_FILE) < 0 ||
-		git_filebuf_open(&ref, ref_path.ptr, 0, GIT_REFS_FILE_MODE) < 0)
-		goto fail;
+	if ((error = git_buf_joinpath(&ref_path, git_dir, GIT_HEAD_FILE)) < 0 ||
+	    (error = git_filebuf_open(&ref, ref_path.ptr, 0, GIT_REFS_FILE_MODE)) < 0)
+		goto out;
 
 	if (!ref_name)
 		ref_name = GIT_BRANCH_MASTER;
@@ -1373,17 +1374,14 @@ int git_repository_create_head(const char *git_dir, const char *ref_name)
 	else
 		fmt = "ref: " GIT_REFS_HEADS_DIR "%s\n";
 
-	if (git_filebuf_printf(&ref, fmt, ref_name) < 0 ||
-		git_filebuf_commit(&ref) < 0)
-		goto fail;
-
-	git_buf_dispose(&ref_path);
-	return 0;
+	if ((error = git_filebuf_printf(&ref, fmt, ref_name)) < 0 ||
+	    (error = git_filebuf_commit(&ref)) < 0)
+		goto out;
 
-fail:
+out:
 	git_buf_dispose(&ref_path);
 	git_filebuf_cleanup(&ref);
-	return -1;
+	return error;
 }
 
 static bool is_chmod_supported(const char *file_path)
@@ -2058,53 +2056,59 @@ int git_repository_init_ext(
 	const char *given_repo,
 	git_repository_init_options *opts)
 {
-	int error;
 	git_buf repo_path = GIT_BUF_INIT, wd_path = GIT_BUF_INIT,
-		common_path = GIT_BUF_INIT;
+		common_path = GIT_BUF_INIT, head_path = GIT_BUF_INIT;
 	const char *wd;
+	int error;
 
 	assert(out && given_repo && opts);
 
 	GIT_ERROR_CHECK_VERSION(opts, GIT_REPOSITORY_INIT_OPTIONS_VERSION, "git_repository_init_options");
 
-	error = repo_init_directories(&repo_path, &wd_path, given_repo, opts);
-	if (error < 0)
-		goto cleanup;
+	if ((error = repo_init_directories(&repo_path, &wd_path, given_repo, opts)) < 0)
+		goto out;
 
 	wd = (opts->flags & GIT_REPOSITORY_INIT_BARE) ? NULL : git_buf_cstr(&wd_path);
-	if (valid_repository_path(&repo_path, &common_path)) {
 
+	if (valid_repository_path(&repo_path, &common_path)) {
 		if ((opts->flags & GIT_REPOSITORY_INIT_NO_REINIT) != 0) {
 			git_error_set(GIT_ERROR_REPOSITORY,
 				"attempt to reinitialize '%s'", given_repo);
 			error = GIT_EEXISTS;
-			goto cleanup;
+			goto out;
 		}
 
 		opts->flags |= GIT_REPOSITORY_INIT__IS_REINIT;
 
-		error = repo_init_config(
-			repo_path.ptr, wd, opts->flags, opts->mode);
+		if ((error = repo_init_config(repo_path.ptr, wd, opts->flags, opts->mode)) < 0)
+			goto out;
 
 		/* TODO: reinitialize the templates */
+	} else {
+		if ((error = repo_init_structure(repo_path.ptr, wd, opts)) < 0 ||
+		    (error = repo_init_config(repo_path.ptr, wd, opts->flags, opts->mode)) < 0 ||
+		    (error = git_buf_joinpath(&head_path, repo_path.ptr, GIT_HEAD_FILE)) < 0)
+			goto out;
+
+		/*
+		 * Only set the new HEAD if the file does not exist already via
+		 * a template or if the caller has explicitly supplied an
+		 * initial HEAD value.
+		 */
+		if ((!git_path_exists(head_path.ptr) || opts->initial_head) &&
+		    (error = git_repository_create_head(repo_path.ptr, opts->initial_head)) < 0)
+			goto out;
 	}
-	else {
-		if (!(error = repo_init_structure(
-				repo_path.ptr, wd, opts)) &&
-			!(error = repo_init_config(
-				repo_path.ptr, wd, opts->flags, opts->mode)))
-			error = git_repository_create_head(
-				repo_path.ptr, opts->initial_head);
-	}
-	if (error < 0)
-		goto cleanup;
 
-	error = git_repository_open(out, repo_path.ptr);
+	if ((error = git_repository_open(out, repo_path.ptr)) < 0)
+		goto out;
 
-	if (!error && opts->origin_url)
-		error = repo_init_create_origin(*out, opts->origin_url);
+	if (opts->origin_url &&
+	    (error = repo_init_create_origin(*out, opts->origin_url)) < 0)
+		goto out;
 
-cleanup:
+out:
+	git_buf_dispose(&head_path);
 	git_buf_dispose(&common_path);
 	git_buf_dispose(&repo_path);
 	git_buf_dispose(&wd_path);
diff --git a/tests/repo/init.c b/tests/repo/init.c
index f2155b4cd..9879ef1f7 100644
--- a/tests/repo/init.c
+++ b/tests/repo/init.c
@@ -13,20 +13,13 @@ enum repo_mode {
 
 static git_repository *_repo = NULL;
 static git_buf _global_path = GIT_BUF_INIT;
-static mode_t g_umask = 0;
 
 void test_repo_init__initialize(void)
 {
 	_repo = NULL;
 
-	/* load umask if not already loaded */
-	if (!g_umask) {
-		g_umask = p_umask(022);
-		(void)p_umask(g_umask);
-	}
-
-    git_libgit2_opts(GIT_OPT_GET_SEARCH_PATH, GIT_CONFIG_LEVEL_GLOBAL,
-		&_global_path);
+	git_libgit2_opts(GIT_OPT_GET_SEARCH_PATH, GIT_CONFIG_LEVEL_GLOBAL,
+			 &_global_path);
 }
 
 void test_repo_init__cleanup(void)
@@ -380,17 +373,6 @@ void test_repo_init__sets_logAllRefUpdates_according_to_type_of_repository(void)
 	assert_config_entry_on_init_bytype("core.logallrefupdates", true, false);
 }
 
-void test_repo_init__empty_template_path(void)
-{
-	git_repository_init_options opts = GIT_REPOSITORY_INIT_OPTIONS_INIT;
-	opts.template_path = "";
-
-	cl_git_pass(git_futils_mkdir("foo", 0755, 0));
-	cl_git_pass(git_repository_init_ext(&_repo, "foo", &opts));
-
-	cleanup_repository("foo");
-}
-
 void test_repo_init__extended_0(void)
 {
 	git_repository_init_options opts = GIT_REPOSITORY_INIT_OPTIONS_INIT;
@@ -524,253 +506,6 @@ void test_repo_init__relative_gitdir_2(void)
 	cleanup_repository("root");
 }
 
-#define CLEAR_FOR_CORE_FILEMODE(M) ((M) &= ~0177)
-
-static void assert_hooks_match(
-	const char *template_dir,
-	const char *repo_dir,
-	const char *hook_path,
-	bool core_filemode)
-{
-	git_buf expected = GIT_BUF_INIT;
-	git_buf actual = GIT_BUF_INIT;
-	struct stat expected_st, st;
-
-	cl_git_pass(git_buf_joinpath(&expected, template_dir, hook_path));
-	cl_git_pass(git_path_lstat(expected.ptr, &expected_st));
-
-	cl_git_pass(git_buf_joinpath(&actual, repo_dir, hook_path));
-	cl_git_pass(git_path_lstat(actual.ptr, &st));
-
-	cl_assert(expected_st.st_size == st.st_size);
-
-	if (GIT_MODE_TYPE(expected_st.st_mode) != GIT_FILEMODE_LINK) {
-		mode_t expected_mode =
-			GIT_MODE_TYPE(expected_st.st_mode) |
-			(GIT_PERMS_FOR_WRITE(expected_st.st_mode) & ~g_umask);
-
-		if (!core_filemode) {
-			CLEAR_FOR_CORE_FILEMODE(expected_mode);
-			CLEAR_FOR_CORE_FILEMODE(st.st_mode);
-		}
-
-		cl_assert_equal_i_fmt(expected_mode, st.st_mode, "%07o");
-	}
-
-	git_buf_dispose(&expected);
-	git_buf_dispose(&actual);
-}
-
-static void assert_mode_seems_okay(
-	const char *base, const char *path,
-	git_filemode_t expect_mode, bool expect_setgid, bool core_filemode)
-{
-	git_buf full = GIT_BUF_INIT;
-	struct stat st;
-
-	cl_git_pass(git_buf_joinpath(&full, base, path));
-	cl_git_pass(git_path_lstat(full.ptr, &st));
-	git_buf_dispose(&full);
-
-	if (!core_filemode) {
-		CLEAR_FOR_CORE_FILEMODE(expect_mode);
-		CLEAR_FOR_CORE_FILEMODE(st.st_mode);
-		expect_setgid = false;
-	}
-
-	if (S_ISGID != 0)
-		cl_assert_equal_b(expect_setgid, (st.st_mode & S_ISGID) != 0);
-
-	cl_assert_equal_b(
-		GIT_PERMS_IS_EXEC(expect_mode), GIT_PERMS_IS_EXEC(st.st_mode));
-
-	cl_assert_equal_i_fmt(
-		GIT_MODE_TYPE(expect_mode), GIT_MODE_TYPE(st.st_mode), "%07o");
-}
-
-static const char *template_sandbox(const char *name)
-{
-	git_buf hooks_path = GIT_BUF_INIT, link_path = GIT_BUF_INIT,
-		dotfile_path = GIT_BUF_INIT;
-	const char *path = cl_fixture(name);
-
-	cl_fixture_sandbox(name);
-
-	/* create a symlink from link.sample to update.sample if the filesystem
-	 * supports it.
-	 */
-
-	cl_git_pass(git_buf_joinpath(&hooks_path, name, "hooks"));
-	cl_git_pass(git_buf_joinpath(&link_path, hooks_path.ptr, "link.sample"));
-
-#ifdef GIT_WIN32
-	cl_git_mkfile(link_path.ptr, "#!/bin/sh\necho hello, world\n");
-#else
-	cl_must_pass(symlink("update.sample", link_path.ptr));
-#endif
-
-	/* create a file starting with a dot */
-	cl_git_pass(git_buf_joinpath(&dotfile_path, hooks_path.ptr, ".dotfile"));
-	cl_git_mkfile(dotfile_path.ptr, "something\n");
-	git_buf_dispose(&dotfile_path);
-
-	git_buf_dispose(&dotfile_path);
-	git_buf_dispose(&link_path);
-	git_buf_dispose(&hooks_path);
-
-	return path;
-}
-
-static void configure_templatedir(const char *template_path)
-{
-	create_tmp_global_config("tmp_global_path", "init.templatedir", template_path);
-}
-
-static void validate_templates(git_repository *repo, const char *template_path)
-{
-	git_buf template_description = GIT_BUF_INIT;
-	git_buf repo_description = GIT_BUF_INIT;
-	git_buf expected = GIT_BUF_INIT;
-	git_buf actual = GIT_BUF_INIT;
-	int filemode;
-
-	cl_git_pass(git_buf_joinpath(&template_description, template_path,
-		"description"));
-	cl_git_pass(git_buf_joinpath(&repo_description, git_repository_path(repo),
-		"description"));
-
-	cl_git_pass(git_futils_readbuffer(&expected, template_description.ptr));
-	cl_git_pass(git_futils_readbuffer(&actual, repo_description.ptr));
-
-	cl_assert_equal_s(expected.ptr, actual.ptr);
-
-	filemode = cl_repo_get_bool(repo, "core.filemode");
-
-	assert_hooks_match(
-		template_path, git_repository_path(repo),
-		"hooks/update.sample", filemode);
-
-	assert_hooks_match(
-		template_path, git_repository_path(repo),
-		"hooks/link.sample", filemode);
-
-	assert_hooks_match(
-		template_path, git_repository_path(repo),
-		"hooks/.dotfile", filemode);
-
-	git_buf_dispose(&expected);
-	git_buf_dispose(&actual);
-	git_buf_dispose(&repo_description);
-	git_buf_dispose(&template_description);
-}
-
-void test_repo_init__external_templates_specified_in_options(void)
-{
-	git_repository_init_options opts = GIT_REPOSITORY_INIT_OPTIONS_INIT;
-
-	cl_set_cleanup(&cleanup_repository, "templated.git");
-	template_sandbox("template");
-
-	opts.flags = GIT_REPOSITORY_INIT_MKPATH | GIT_REPOSITORY_INIT_BARE |
-		GIT_REPOSITORY_INIT_EXTERNAL_TEMPLATE;
-	opts.template_path = "template";
-
-	cl_git_pass(git_repository_init_ext(&_repo, "templated.git", &opts));
-
-	cl_assert(git_repository_is_bare(_repo));
-
-	cl_assert(!git__suffixcmp(git_repository_path(_repo), "/templated.git/"));
-
-	validate_templates(_repo, "template");
-	cl_fixture_cleanup("template");
-}
-
-void test_repo_init__external_templates_specified_in_config(void)
-{
-	git_buf template_path = GIT_BUF_INIT;
-
-	git_repository_init_options opts = GIT_REPOSITORY_INIT_OPTIONS_INIT;
-
-	cl_set_cleanup(&cleanup_repository, "templated.git");
-	template_sandbox("template");
-
-	cl_git_pass(git_buf_joinpath(&template_path, clar_sandbox_path(),
-		"template"));
-
-	configure_templatedir(template_path.ptr);
-
-	opts.flags = GIT_REPOSITORY_INIT_MKPATH | GIT_REPOSITORY_INIT_BARE |
-		GIT_REPOSITORY_INIT_EXTERNAL_TEMPLATE;
-
-	cl_git_pass(git_repository_init_ext(&_repo, "templated.git", &opts));
-
-	validate_templates(_repo, "template");
-	cl_fixture_cleanup("template");
-
-	git_buf_dispose(&template_path);
-}
-
-void test_repo_init__external_templates_with_leading_dot(void)
-{
-	git_buf template_path = GIT_BUF_INIT;
-
-	git_repository_init_options opts = GIT_REPOSITORY_INIT_OPTIONS_INIT;
-
-	cl_set_cleanup(&cleanup_repository, "templated.git");
-	template_sandbox("template");
-
-	cl_must_pass(p_rename("template", ".template_with_leading_dot"));
-
-	cl_git_pass(git_buf_joinpath(&template_path, clar_sandbox_path(),
-		".template_with_leading_dot"));
-
-	configure_templatedir(template_path.ptr);
-
-	opts.flags = GIT_REPOSITORY_INIT_MKPATH | GIT_REPOSITORY_INIT_BARE |
-		GIT_REPOSITORY_INIT_EXTERNAL_TEMPLATE;
-
-	cl_git_pass(git_repository_init_ext(&_repo, "templated.git", &opts));
-
-	validate_templates(_repo, ".template_with_leading_dot");
-	cl_fixture_cleanup(".template_with_leading_dot");
-
-	git_buf_dispose(&template_path);
-}
-
-void test_repo_init__extended_with_template_and_shared_mode(void)
-{
-	git_repository_init_options opts = GIT_REPOSITORY_INIT_OPTIONS_INIT;
-	int filemode = true;
-	const char *repo_path = NULL;
-
-	cl_set_cleanup(&cleanup_repository, "init_shared_from_tpl");
-	template_sandbox("template");
-
-	opts.flags = GIT_REPOSITORY_INIT_MKPATH |
-		GIT_REPOSITORY_INIT_EXTERNAL_TEMPLATE;
-	opts.template_path = "template";
-	opts.mode = GIT_REPOSITORY_INIT_SHARED_GROUP;
-
-	cl_git_pass(git_repository_init_ext(&_repo, "init_shared_from_tpl", &opts));
-
-	cl_assert(!git_repository_is_bare(_repo));
-	cl_assert(!git__suffixcmp(git_repository_path(_repo), "/init_shared_from_tpl/.git/"));
-
-	filemode = cl_repo_get_bool(_repo, "core.filemode");
-
-	repo_path = git_repository_path(_repo);
-	assert_mode_seems_okay(repo_path, "hooks",
-		GIT_FILEMODE_TREE | GIT_REPOSITORY_INIT_SHARED_GROUP, true, filemode);
-	assert_mode_seems_okay(repo_path, "info",
-		GIT_FILEMODE_TREE | GIT_REPOSITORY_INIT_SHARED_GROUP, true, filemode);
-	assert_mode_seems_okay(repo_path, "description",
-		GIT_FILEMODE_BLOB, false, filemode);
-
-	validate_templates(_repo, "template");
-
-	cl_fixture_cleanup("template");
-}
-
 void test_repo_init__can_reinit_an_initialized_repository(void)
 {
 	git_repository *reinit;
diff --git a/tests/repo/template.c b/tests/repo/template.c
new file mode 100644
index 000000000..7ccd93521
--- /dev/null
+++ b/tests/repo/template.c
@@ -0,0 +1,295 @@
+#include "clar_libgit2.h"
+
+#include "fileops.h"
+#include "repo/repo_helpers.h"
+
+#define CLEAR_FOR_CORE_FILEMODE(M) ((M) &= ~0177)
+
+static git_repository *_repo = NULL;
+static mode_t g_umask = 0;
+static git_buf _global_path = GIT_BUF_INIT;
+
+static const char *fixture_repo;
+static const char *fixture_templates;
+
+void test_repo_template__initialize(void)
+{
+	_repo = NULL;
+
+	/* load umask if not already loaded */
+	if (!g_umask) {
+		g_umask = p_umask(022);
+		(void)p_umask(g_umask);
+	}
+}
+
+void test_repo_template__cleanup(void)
+{
+	git_libgit2_opts(GIT_OPT_SET_SEARCH_PATH, GIT_CONFIG_LEVEL_GLOBAL,
+		_global_path.ptr);
+	git_buf_dispose(&_global_path);
+
+	cl_fixture_cleanup("tmp_global_path");
+
+	if (fixture_repo) {
+		cl_fixture_cleanup(fixture_repo);
+		fixture_repo = NULL;
+	}
+
+	if (fixture_templates) {
+		cl_fixture_cleanup(fixture_templates);
+		fixture_templates = NULL;
+	}
+
+	git_repository_free(_repo);
+	_repo = NULL;
+}
+
+static void assert_hooks_match(
+	const char *template_dir,
+	const char *repo_dir,
+	const char *hook_path,
+	bool core_filemode)
+{
+	git_buf expected = GIT_BUF_INIT;
+	git_buf actual = GIT_BUF_INIT;
+	struct stat expected_st, st;
+
+	cl_git_pass(git_buf_joinpath(&expected, template_dir, hook_path));
+	cl_git_pass(git_path_lstat(expected.ptr, &expected_st));
+
+	cl_git_pass(git_buf_joinpath(&actual, repo_dir, hook_path));
+	cl_git_pass(git_path_lstat(actual.ptr, &st));
+
+	cl_assert(expected_st.st_size == st.st_size);
+
+	if (GIT_MODE_TYPE(expected_st.st_mode) != GIT_FILEMODE_LINK) {
+		mode_t expected_mode =
+			GIT_MODE_TYPE(expected_st.st_mode) |
+			(GIT_PERMS_FOR_WRITE(expected_st.st_mode) & ~g_umask);
+
+		if (!core_filemode) {
+			CLEAR_FOR_CORE_FILEMODE(expected_mode);
+			CLEAR_FOR_CORE_FILEMODE(st.st_mode);
+		}
+
+		cl_assert_equal_i_fmt(expected_mode, st.st_mode, "%07o");
+	}
+
+	git_buf_dispose(&expected);
+	git_buf_dispose(&actual);
+}
+
+static void assert_mode_seems_okay(
+	const char *base, const char *path,
+	git_filemode_t expect_mode, bool expect_setgid, bool core_filemode)
+{
+	git_buf full = GIT_BUF_INIT;
+	struct stat st;
+
+	cl_git_pass(git_buf_joinpath(&full, base, path));
+	cl_git_pass(git_path_lstat(full.ptr, &st));
+	git_buf_dispose(&full);
+
+	if (!core_filemode) {
+		CLEAR_FOR_CORE_FILEMODE(expect_mode);
+		CLEAR_FOR_CORE_FILEMODE(st.st_mode);
+		expect_setgid = false;
+	}
+
+	if (S_ISGID != 0)
+		cl_assert_equal_b(expect_setgid, (st.st_mode & S_ISGID) != 0);
+
+	cl_assert_equal_b(
+		GIT_PERMS_IS_EXEC(expect_mode), GIT_PERMS_IS_EXEC(st.st_mode));
+
+	cl_assert_equal_i_fmt(
+		GIT_MODE_TYPE(expect_mode), GIT_MODE_TYPE(st.st_mode), "%07o");
+}
+
+static void setup_repo(const char *name, git_repository_init_options *opts)
+{
+	cl_git_pass(git_repository_init_ext(&_repo, name, opts));
+	fixture_repo = name;
+}
+
+static void setup_templates(const char *name, bool setup_globally)
+{
+	git_buf path = GIT_BUF_INIT;
+
+	cl_fixture_sandbox("template");
+	if (strcmp(name, "template"))
+		cl_must_pass(p_rename("template", name));
+
+	fixture_templates = name;
+
+	/*
+	 * Create a symlink from link.sample to update.sample if the filesystem
+	 * supports it.
+	 */
+	cl_git_pass(git_buf_join3(&path, '/', name, "hooks", "link.sample"));
+#ifdef GIT_WIN32
+	cl_git_mkfile(path.ptr, "#!/bin/sh\necho hello, world\n");
+#else
+	cl_must_pass(p_symlink("update.sample", path.ptr));
+#endif
+
+	git_buf_clear(&path);
+
+	/* Create a file starting with a dot */
+	cl_git_pass(git_buf_join3(&path, '/', name, "hooks", ".dotfile"));
+	cl_git_mkfile(path.ptr, "something\n");
+
+	git_buf_clear(&path);
+
+	if (setup_globally) {
+		cl_git_pass(git_buf_joinpath(&path, clar_sandbox_path(), name));
+		create_tmp_global_config("tmp_global_path", "init.templatedir", path.ptr);
+	}
+
+	git_buf_dispose(&path);
+}
+
+static void validate_templates(git_repository *repo, const char *template_path)
+{
+	git_buf path = GIT_BUF_INIT, expected = GIT_BUF_INIT, actual = GIT_BUF_INIT;
+	int filemode;
+
+	cl_git_pass(git_buf_joinpath(&path, template_path, "description"));
+	cl_git_pass(git_futils_readbuffer(&expected, path.ptr));
+
+	git_buf_clear(&path);
+
+	cl_git_pass(git_buf_joinpath(&path, git_repository_path(repo), "description"));
+	cl_git_pass(git_futils_readbuffer(&actual, path.ptr));
+
+	cl_assert_equal_s(expected.ptr, actual.ptr);
+
+	filemode = cl_repo_get_bool(repo, "core.filemode");
+
+	assert_hooks_match(
+		template_path, git_repository_path(repo),
+		"hooks/update.sample", filemode);
+	assert_hooks_match(
+		template_path, git_repository_path(repo),
+		"hooks/link.sample", filemode);
+	assert_hooks_match(
+		template_path, git_repository_path(repo),
+		"hooks/.dotfile", filemode);
+
+	git_buf_dispose(&expected);
+	git_buf_dispose(&actual);
+	git_buf_dispose(&path);
+}
+
+void test_repo_template__external_templates_specified_in_options(void)
+{
+	git_repository_init_options opts = GIT_REPOSITORY_INIT_OPTIONS_INIT;
+
+	opts.flags = GIT_REPOSITORY_INIT_MKPATH | GIT_REPOSITORY_INIT_BARE |
+		GIT_REPOSITORY_INIT_EXTERNAL_TEMPLATE;
+	opts.template_path = "template";
+
+	setup_templates("template", false);
+	setup_repo("templated.git", &opts);
+
+	validate_templates(_repo, "template");
+}
+
+void test_repo_template__external_templates_specified_in_config(void)
+{
+	git_repository_init_options opts = GIT_REPOSITORY_INIT_OPTIONS_INIT;
+
+	opts.flags = GIT_REPOSITORY_INIT_MKPATH | GIT_REPOSITORY_INIT_BARE |
+		GIT_REPOSITORY_INIT_EXTERNAL_TEMPLATE;
+
+	setup_templates("template", true);
+	setup_repo("templated.git", &opts);
+
+	validate_templates(_repo, "template");
+}
+
+void test_repo_template__external_templates_with_leading_dot(void)
+{
+	git_repository_init_options opts = GIT_REPOSITORY_INIT_OPTIONS_INIT;
+
+	opts.flags = GIT_REPOSITORY_INIT_MKPATH | GIT_REPOSITORY_INIT_BARE |
+		GIT_REPOSITORY_INIT_EXTERNAL_TEMPLATE;
+
+	setup_templates(".template_with_leading_dot", true);
+	setup_repo("templated.git", &opts);
+
+	validate_templates(_repo, ".template_with_leading_dot");
+}
+
+void test_repo_template__extended_with_template_and_shared_mode(void)
+{
+	git_repository_init_options opts = GIT_REPOSITORY_INIT_OPTIONS_INIT;
+	const char *repo_path;
+	int filemode;
+
+	opts.flags = GIT_REPOSITORY_INIT_MKPATH |
+		GIT_REPOSITORY_INIT_EXTERNAL_TEMPLATE;
+	opts.template_path = "template";
+	opts.mode = GIT_REPOSITORY_INIT_SHARED_GROUP;
+
+	setup_templates("template", false);
+	setup_repo("init_shared_from_tpl", &opts);
+
+	filemode = cl_repo_get_bool(_repo, "core.filemode");
+
+	repo_path = git_repository_path(_repo);
+	assert_mode_seems_okay(repo_path, "hooks",
+		GIT_FILEMODE_TREE | GIT_REPOSITORY_INIT_SHARED_GROUP, true, filemode);
+	assert_mode_seems_okay(repo_path, "info",
+		GIT_FILEMODE_TREE | GIT_REPOSITORY_INIT_SHARED_GROUP, true, filemode);
+	assert_mode_seems_okay(repo_path, "description",
+		GIT_FILEMODE_BLOB, false, filemode);
+
+	validate_templates(_repo, "template");
+}
+
+void test_repo_template__templated_head_is_used(void)
+{
+	git_repository_init_options opts = GIT_REPOSITORY_INIT_OPTIONS_INIT;
+	git_buf head = GIT_BUF_INIT;
+
+	opts.flags = GIT_REPOSITORY_INIT_MKPATH | GIT_REPOSITORY_INIT_EXTERNAL_TEMPLATE;
+
+	setup_templates("template", true);
+	cl_git_mkfile("template/HEAD", "foobar\n");
+	setup_repo("repo", &opts);
+
+	cl_git_pass(git_futils_readbuffer(&head, "repo/.git/HEAD"));
+	cl_assert_equal_s("foobar\n", head.ptr);
+
+	git_buf_dispose(&head);
+}
+
+void test_repo_template__initial_head_option_overrides_template_head(void)
+{
+	git_repository_init_options opts = GIT_REPOSITORY_INIT_OPTIONS_INIT;
+	git_buf head = GIT_BUF_INIT;
+
+	opts.flags = GIT_REPOSITORY_INIT_MKPATH | GIT_REPOSITORY_INIT_EXTERNAL_TEMPLATE;
+	opts.initial_head = "manual";
+
+	setup_templates("template", true);
+	cl_git_mkfile("template/HEAD", "foobar\n");
+	setup_repo("repo", &opts);
+
+	cl_git_pass(git_futils_readbuffer(&head, "repo/.git/HEAD"));
+	cl_assert_equal_s("ref: refs/heads/manual\n", head.ptr);
+
+	git_buf_dispose(&head);
+}
+
+void test_repo_template__empty_template_path(void)
+{
+	git_repository_init_options opts = GIT_REPOSITORY_INIT_OPTIONS_INIT;
+
+	opts.flags = GIT_REPOSITORY_INIT_MKPATH | GIT_REPOSITORY_INIT_EXTERNAL_TEMPLATE;
+	opts.template_path = "";
+
+	setup_repo("foo", &opts);
+}