[tarantool-patches] [PATCH 0/7] Expose ICU into Lua

[Vladislav Shpilevoy]

Branch: http://github.com/tarantool/tarantool/tree/gh-3290-lua-icu-ucasemap
Issue: https://github.com/tarantool/tarantool/issues/3290
Issue: https://github.com/tarantool/tarantool/issues/3081

Lua can not work with unicode - in Lua it is enterpreted as a binary. On such
string built-in upper/lower functions, '#' (length) and comparison operators do
not work. But Tarantool links with ICU and has comparators with collations, that
can solve the problems.

But there is another issue - string methods must be available before box.cfg,
so the ICU and collations must be built out of main 'box' static library. To do
this the collation related files are moved from 'box' into 'core' library.

A second issue is that when box.cfg is called, it inserts built-in collations
into _collation space, and these insertions can conflict with built-in
collations, created before box.cfg. Delete from _collation can break the
collations cache as well. The patchset solves this by checking collations
deletions and insertions, and if they tries to operate on built-in collations,
then they are ignored - a user sees changes in _collation, but the cache is
unchanged.

Vladislav Shpilevoy (7):
  lua: expose ICU upper/lower functions to Lua
  lua: implement string.u_count
  alter: fix assertion in collations alter
  Move struct on_access_denied_ctx into error.h
  Merge box_error, stat and collations into core library
  Always store built-in collations in the cache
  lua: expose u_compare/u_icompare into Lua

 cmake/module.cmake           |   4 +-
 extra/exports                |   3 +
 src/CMakeLists.txt           |  17 +++-
 src/box/CMakeLists.txt       |  18 +---
 src/box/alter.cc             | 129 ++++++++++++++----------
 src/box/lua/call.c           |   2 +-
 src/box/lua/error.cc         |   2 +-
 src/box/lua/net_box.c        |   2 +-
 src/box/lua/tuple.c          |   2 +-
 src/box/lua/xlog.c           |   2 +-
 src/box/schema.h             |  12 ---
 src/{box => }/coll.c         |   0
 src/{box => }/coll.h         |   0
 src/{box => }/coll_cache.c   |  34 +++++++
 src/{box => }/coll_cache.h   |   0
 src/{box => }/coll_def.c     |   7 ++
 src/{box => }/coll_def.h     |  13 +++
 src/{box => }/errcode.c      |   0
 src/{box => }/errcode.h      |   0
 src/{box => }/error.cc       |   1 -
 src/{box => }/error.h        |  12 +++
 src/lua/init.c               |   2 +-
 src/lua/string.lua           | 227 +++++++++++++++++++++++++++++++++++++++++++
 src/main.cc                  |   2 +-
 src/{box => }/opt_def.c      |   0
 src/{box => }/opt_def.h      |   0
 src/util.c                   |  79 ++++++++++++++-
 test/app-tap/string.test.lua |  70 ++++++++++++-
 test/box/ddl.result          |  25 +++++
 test/box/ddl.test.lua        |  11 +++
 test/unit/CMakeLists.txt     |   8 +-
 test/unit/coll.cpp           |   3 +-
 32 files changed, 585 insertions(+), 102 deletions(-)
 rename src/{box => }/coll.c (100%)
 rename src/{box => }/coll.h (100%)
 rename src/{box => }/coll_cache.c (75%)
 rename src/{box => }/coll_cache.h (100%)
 rename src/{box => }/coll_def.c (96%)
 rename src/{box => }/coll_def.h (94%)
 rename src/{box => }/errcode.c (100%)
 rename src/{box => }/errcode.h (100%)
 rename src/{box => }/error.cc (99%)
 rename src/{box => }/error.h (95%)
 rename src/{box => }/opt_def.c (100%)
 rename src/{box => }/opt_def.h (100%)

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