remote: introduce git_remote_rename()

3 files changed, 221 insertions, 0 deletions

diff --git a/tests-clar/config/config_helpers.c b/tests-clar/config/config_helpers.c
index 652f80f94..53bd945a0 100644
--- a/tests-clar/config/config_helpers.c
+++ b/tests-clar/config/config_helpers.c
@@ -20,3 +20,18 @@ void assert_config_entry_existence(
 	else
 		cl_assert_equal_i(GIT_ENOTFOUND, result);
 }
+
+void assert_config_entry_value(
+	git_repository *repo,
+	const char *name,
+	const char *expected_value)
+{
+	git_config *config;
+	const char *out;
+
+	cl_git_pass(git_repository_config__weakptr(&config, repo));
+
+	cl_git_pass(git_config_get_string(&out, config, name));
+
+	cl_assert_equal_s(expected_value, out);
+}
diff --git a/tests-clar/config/config_helpers.h b/tests-clar/config/config_helpers.h
index d18c6c33d..b887b3d38 100644
--- a/tests-clar/config/config_helpers.h
+++ b/tests-clar/config/config_helpers.h
@@ -2,3 +2,8 @@ extern void assert_config_entry_existence(
 	git_repository *repo,
 	const char *name,
 	bool is_supposed_to_exist);
+
+extern void assert_config_entry_value(
+	git_repository *repo,
+	const char *name,
+	const char *expected_value);
diff --git a/tests-clar/network/remoterename.c b/tests-clar/network/remoterename.c
new file mode 100644
index 000000000..70041f45d
--- /dev/null
+++ b/tests-clar/network/remoterename.c
@@ -0,0 +1,201 @@
+#include "clar_libgit2.h"
+#include "config/config_helpers.h"
+
+#include "repository.h"
+
+static git_remote *_remote;
+static git_repository *_repo;
+
+void test_network_remoterename__initialize(void)
+{
+	_repo = cl_git_sandbox_init("testrepo.git");
+
+	cl_git_pass(git_remote_load(&_remote, _repo, "test"));
+}
+
+void test_network_remoterename__cleanup(void)
+{
+	git_remote_free(_remote);
+
+	cl_git_sandbox_cleanup();
+}
+
+static int dont_call_me_cb(const char *fetch_refspec, void *payload)
+{
+	GIT_UNUSED(fetch_refspec);
+	GIT_UNUSED(payload);
+
+	cl_assert(false);
+
+	return -1;
+}
+
+void test_network_remoterename__renaming_a_remote_moves_related_configuration_section(void)
+{
+	assert_config_entry_existence(_repo, "remote.test.fetch", true);
+	assert_config_entry_existence(_repo, "remote.just/renamed.fetch", false);
+
+	cl_git_pass(git_remote_rename(_remote, "just/renamed", dont_call_me_cb, NULL));
+
+	assert_config_entry_existence(_repo, "remote.test.fetch", false);
+	assert_config_entry_existence(_repo, "remote.just/renamed.fetch", true);
+}
+
+void test_network_remoterename__renaming_a_remote_updates_branch_related_configuration_entries(void)
+{
+	assert_config_entry_value(_repo, "branch.master.remote", "test");
+
+	cl_git_pass(git_remote_rename(_remote, "just/renamed", dont_call_me_cb, NULL));
+
+	assert_config_entry_value(_repo, "branch.master.remote", "just/renamed");
+}
+
+void test_network_remoterename__renaming_a_remote_updates_default_fetchrefspec(void)
+{
+	cl_git_pass(git_remote_rename(_remote, "just/renamed", dont_call_me_cb, NULL));
+
+	assert_config_entry_value(_repo, "remote.just/renamed.fetch", "+refs/heads/*:refs/remotes/just/renamed/*");
+}
+
+void test_network_remoterename__renaming_a_remote_without_a_fetchrefspec_doesnt_create_one(void)
+{
+	git_config *config;
+
+	git_remote_free(_remote);
+	cl_git_pass(git_repository_config__weakptr(&config, _repo));
+	cl_git_pass(git_config_delete(config, "remote.test.fetch"));
+
+	cl_git_pass(git_remote_load(&_remote, _repo, "test"));
+
+	assert_config_entry_existence(_repo, "remote.test.fetch", false);
+
+	cl_git_pass(git_remote_rename(_remote, "just/renamed", dont_call_me_cb, NULL));
+
+	assert_config_entry_existence(_repo, "remote.just/renamed.fetch", false);
+}
+
+static int ensure_refspecs(const char* refspec_name, void *payload)
+{
+	int i = 0;
+	bool found = false;
+	const char ** exp = (const char **)payload;
+
+	while (exp[i]) {
+		if (strcmp(exp[i++], refspec_name))
+			continue;
+
+		found = true;
+		break;
+	}
+
+	cl_assert(found);
+
+	return 0;
+}
+
+void test_network_remoterename__renaming_a_remote_notifies_of_non_default_fetchrefspec(void)
+{
+	git_config *config;
+
+	char *expected_refspecs[] = {
+		"+refs/*:refs/*",
+		NULL
+	};
+
+	git_remote_free(_remote);
+	cl_git_pass(git_repository_config__weakptr(&config, _repo));
+	cl_git_pass(git_config_set_string(config, "remote.test.fetch", "+refs/*:refs/*"));
+	cl_git_pass(git_remote_load(&_remote, _repo, "test"));
+
+	cl_git_pass(git_remote_rename(_remote, "just/renamed", ensure_refspecs, &expected_refspecs));
+
+	assert_config_entry_value(_repo, "remote.just/renamed.fetch", "+refs/*:refs/*");
+}
+
+void test_network_remoterename__new_name_can_contain_dots(void)
+{
+	cl_git_pass(git_remote_rename(_remote, "just.renamed", dont_call_me_cb, NULL));
+	cl_assert_equal_s("just.renamed", git_remote_name(_remote));
+}
+
+void test_network_remoterename__new_name_must_conform_to_reference_naming_conventions(void)
+{
+	cl_git_fail(git_remote_rename(_remote, "new@{name", dont_call_me_cb, NULL));
+}
+
+void test_network_remoterename__renamed_name_is_persisted(void)
+{
+	git_remote *renamed;
+	git_repository *another_repo;
+
+	cl_git_fail(git_remote_load(&renamed, _repo, "just/renamed"));
+
+	cl_git_pass(git_remote_rename(_remote, "just/renamed", dont_call_me_cb, NULL));
+
+	cl_git_pass(git_repository_open(&another_repo, "testrepo.git"));
+	cl_git_pass(git_remote_load(&renamed, _repo, "just/renamed"));
+
+	git_remote_free(renamed);
+	git_repository_free(another_repo);
+}
+
+void test_network_remoterename__cannot_overwrite_an_existing_remote(void)
+{
+	cl_assert_equal_i(GIT_EEXISTS, git_remote_rename(_remote, "test", dont_call_me_cb, NULL));
+	cl_assert_equal_i(GIT_EEXISTS, git_remote_rename(_remote, "test_with_pushurl", dont_call_me_cb, NULL));
+}
+
+void test_network_remoterename__renaming_an_inmemory_remote_persists_it(void)
+{
+	git_remote *remote;
+
+	assert_config_entry_existence(_repo, "remote.durable.url", false);
+
+	cl_git_pass(git_remote_new(&remote, _repo, NULL, "git://github.com/libgit2/durable.git", NULL));
+
+	assert_config_entry_existence(_repo, "remote.durable.url", false);
+
+	cl_git_pass(git_remote_rename(remote, "durable", dont_call_me_cb, NULL));
+
+	assert_config_entry_value(_repo, "remote.durable.url", "git://github.com/libgit2/durable.git");
+
+	git_remote_free(remote);
+}
+
+void test_network_remoterename__renaming_an_inmemory_nameless_remote_notifies_the_inability_to_update_the_fetch_refspec(void)
+{
+	git_remote *remote;
+
+	char *expected_refspecs[] = {
+		"+refs/heads/*:refs/remotes/volatile/*",
+		NULL
+	};
+
+	assert_config_entry_existence(_repo, "remote.volatile.url", false);
+
+	cl_git_pass(git_remote_new(
+		&remote,
+		_repo,
+		NULL,
+		"git://github.com/libgit2/volatile.git",
+		"+refs/heads/*:refs/remotes/volatile/*"));
+
+	cl_git_pass(git_remote_rename(remote, "durable", ensure_refspecs, &expected_refspecs));
+
+	git_remote_free(remote);
+}
+
+void test_network_remoterename__renaming_a_remote_moves_the_underlying_reference(void)
+{
+	git_reference *underlying;
+
+	cl_assert_equal_i(GIT_ENOTFOUND, git_reference_lookup(&underlying, _repo, "refs/remotes/just/renamed"));
+	cl_git_pass(git_reference_lookup(&underlying, _repo, "refs/remotes/test/master"));
+	git_reference_free(underlying);
+
+	cl_git_pass(git_remote_rename(_remote, "just/renamed", dont_call_me_cb, NULL));
+
+	cl_assert_equal_i(GIT_ENOTFOUND, git_reference_lookup(&underlying, _repo, "refs/remotes/test/master"));
+	cl_git_pass(git_reference_lookup(&underlying, _repo, "refs/remotes/just/renamed/master"));
+	git_reference_free(underlying);
+}