Add workflow job for integration testing of the etcd-client module. NO_DOC=ci NO_TEST=ci NO_CHANGELOG=ci

The commit introduces new `unit/port.cc` test that covers almost all port implementations and almost all port methods. This test was intended as a testing point for future port changes. Implementations `port_sql` and `port_vdbemem` and method `dump_vdbemem` are not tested because I don't know much about the sql subsystem. For the same reason, I didn't tested `port_dump_msgpack_with_context`. Method `dump_msgpack_16` is not actually supported, but it is still used for compatibility with very old connectors. The problem is I found a bug in `port_c_dump_msgpack_16` while writing the test, and we don't want to fix it - probably, we will get rid of this method in future. Method `dump_plain` is not tested because it requires functions from `console.lua` file - it is easier to test `console.push` from Lua then loading the Lua file in unit test. The file has .cc extension because the test requires user_cache susbystem, which has init and free methods available only from C++ source files. NO_CHANGELOG=test NO_DOC=test

Lua headers don't have C++ guards which means all Lua symbols are mangled as C++ ones when the files included in a C++ source file, but then the linker fails because all Lua functions are exported with C mangling. Let's include lua headers in extern "C" scope to allow to use "lua_test_utils.h" in unit tests written in C++. NO_CHANGELOG=test NO_DOC=test

The method actually supports all modes of dump to Lua, but the assertion checks that mp_object mode is never used - the commit drops the assertion. This mode is tested with a tuple constraint taking raw args. Along the way, some test cases are enabled back because the bug that caused them to be disabled has been fixed. NO_CHANGELOG=internal NO_DOC=internal

Closes #9101 @TarantoolBot document Title: hide redundant fields of box.error.unpack() Do not show redundant fields of box.error.unpack(). These are `base_type`, `custom_type` and `code` if the latter is 0. New behaviour is available if `box_error_unpack_type_and_code` compat option is 'new'. Default value is 'old` currently. (The https://tarantool.io/compat/box_error_unpack_type_and_code is to be added.)

Leads nowhere after commit 216b6243bba1 ("tools: remove tarantoolctl utility"). NO_DOC=cleanup NO_TEST=cleanup NO_CHANGELOG=cleanup

Now the error message is allocated by `malloc' if it doesn't fit into the static buffer. Closes #4975 NO_DOC=bugfix

The benchmark tests the tree build, key search, insert and delete operations performance. The latter are tested both including and excluding the tree reballancing overhead. A very simple allocator had been introduced to mitigate the memory management overhead and noise. The benchmark functions are templated. This allows to test multiple tree configurations using the same benchmarking routines. The simplest tree configuration is used, though it's possible to add new configurations to the benchmark. Example on how to create a tree similar to the one used by the memtx index is shown in the appendix A. Closes #9630 NO_DOC=new benchmark NO_TEST=new benchmark NO_CHANGELOG=new benchmark APPENDIX A: Adding a new tree configuration to the benchmark. ```C /* Instantiate the tree. */ #define tree_s128_EXTENT_SIZE 16 * 1024 #define tree_s128_elem_t struct tree_s128_elem #define tree_s128_key_t struct tree_s128_key struct tree_s128_elem { void *tuple; /* Unused. */ int64_t hint; tree_s128_elem() = default; tree_s128_elem(int64_t hint) : hint(hint) {} }; struct tree_s128_key { void *key; /* Unused. */ uint32_t part_count; /* Unused. */ int64_t hint; tree_s128_key(int64_t hint) : hint(hint) {} }; #define BPS_TREE_NAME tree_s128_t #define BPS_TREE_BLOCK_SIZE 512 #define BPS_TREE_EXTENT_SIZE tree_s128_EXTENT_SIZE #define BPS_TREE_IS_IDENTICAL(a, b) ((a).hint == (b).hint) #define BPS_TREE_COMPARE(a, b, arg) ((a).hint - (b).hint) #define BPS_TREE_COMPARE_KEY(a, b, arg) ((a).hint - (b).hint) #define bps_tree_elem_t tree_s128_elem_t #define bps_tree_key_t tree_s128_key_t #define bps_tree_arg_t int #include "salad/bps_tree.h" #undef BPS_TREE_NAME #undef BPS_TREE_BLOCK_SIZE #undef BPS_TREE_EXTENT_SIZE #undef BPS_TREE_IS_IDENTICAL #undef BPS_TREE_COMPARE #undef BPS_TREE_COMPARE_KEY #undef bps_tree_elem_t #undef bps_tree_key_t #undef bps_tree_arg_t /** Add the new tree to the `generate_benchmarks` macro. */ #define generate_benchmarks(generator, func, arg) \ generator(tree_i64, func, arg); \ generator(tree_s128, func, arg) /* < The line to be added. */ /** Create the new tree class. */ CREATE_TREE_CLASS(tree_i64); CREATE_TREE_CLASS(tree_s128); /* < The line to be added. */ ```

In development of the configuration module we met several cases, when an order of appearance of some items is as important as a constant time access using a key. This commit adds a collection that serves such a need. It is to be used internally in the src/box/lua/config code. The module is inspired by Python's collections.OrderedDict. See the description in the module code for details. NO_DOC=the module is for internal use, at least for now NO_CHANGELOG=see NO_DOC

It brings newer codespell version: 2.1.0. Ubuntu Focal offers 1.16.0. Fixes tarantool/checkpatch#70 NO_DOC=CI adjustment NO_CHANGELOG=see NO_DOC NO_TEST=see NO_DOC