Remove luatest submodule

The test-run project is rarely updated these days while luatest is
rapidly developing. Let's remove the luatest submodule from test-run
to ease luatest bumps in projects using test-run. Now, `luatest` is
supposed to be installed from rocks.

Closes #453

Author: locker

.github/workflows/test.yml

@@ -31,11 +31,15 @@ jobs:
         python-version: ${{ matrix.python-version }}
     - name: display python version
       run: python -c "import sys; print(sys.version)"
+    - name: setup tt
+      run: |
+        curl -L https://tarantool.io/release/2/installer.sh | sudo bash
+        sudo apt install -y tt
+        tt version
     - name: setup dependencies
       run: |
-       sudo apt update -y
-       sudo apt-get -y install lua5.1 luarocks
-       sudo luarocks install luacheck
+        tt rocks install luatest
+        tt rocks install luacheck
     - name: setup python dependencies
       run: |
        pip install -r requirements.txt

.gitmodules

@@ -4,9 +4,3 @@
 [submodule "lib/tarantool-python"]
 	path = lib/tarantool-python
 	url = https://github.com/tarantool/tarantool-python.git
-[submodule "lib/checks"]
-	path = lib/checks
-	url = https://github.com/tarantool/checks.git
-[submodule "lib/luatest"]
-	path = lib/luatest
-	url = https://github.com/tarantool/luatest.git

.luacheckrc

@@ -27,6 +27,5 @@ include_files = {
 exclude_files = {
     "lib/tarantool-python",
     "test/test-tarantool/*.test.lua",
-    "lib/luatest/**",
-    "lib/checks/**",
+    ".rocks/**/*.lua",
 }

Makefile

@@ -1,3 +1,5 @@
+export PATH := .rocks/bin:$(PATH)
+
 MAKEFILE_PATH := $(abspath $(lastword $(MAKEFILE_LIST)))
 PROJECT_DIR := $(patsubst %/,%,$(dir $(MAKEFILE_PATH)))
 TEST_RUN_EXTRA_PARAMS?=

bin/luatest

@@ -0,0 +1,20 @@
+#!/usr/bin/env tarantool
+
+--
+-- Add the luatest module to LUA_PATH so that it can be used in processes
+-- spawned by tests.
+--
+local fio = require('fio')
+local path = package.search('luatest')
+if path == nil then
+    error('luatest not found')
+end
+path = fio.dirname(path) -- strip init.lua
+path = fio.dirname(path) -- strip luatest
+os.setenv('LUA_PATH',
+          path .. '/?.lua;' .. path .. '/?/init.lua;' ..
+          (os.getenv('LUA_PATH') or ';'))
+
+print(('Tarantool version is %s'):format(require('tarantool').version))
+
+require('luatest.cli_entrypoint')()

lib/__init__.py

@@ -70,18 +70,12 @@ def module_init():
     os.environ["BUILDDIR"] = BUILDDIR
     soext = sys.platform == 'darwin' and 'dylib' or 'so'
 
-    os.environ['LUA_PATH'] = (
-            SOURCEDIR + '/?.lua;' + SOURCEDIR + '/?/init.lua;'
-            + os.environ['TEST_RUN_DIR'] + '/lib/checks/?.lua;'
-            + os.environ['TEST_RUN_DIR'] + '/lib/luatest/?/init.lua;'
-            + os.environ['TEST_RUN_DIR'] + '/lib/luatest/?.lua;;'
-    )
-
+    os.environ["LUA_PATH"] = SOURCEDIR+"/?.lua;"+SOURCEDIR+"/?/init.lua;;"
     os.environ["LUA_CPATH"] = BUILDDIR+"/?."+soext+";;"
     os.environ["REPLICATION_SYNC_TIMEOUT"] = str(args.replication_sync_timeout)
     os.environ['MEMTX_ALLOCATOR'] = args.memtx_allocator
 
-    prepend_path(os.path.join(os.environ['TEST_RUN_DIR'], 'lib/luatest/bin'))
+    prepend_path(os.path.join(os.environ['TEST_RUN_DIR'], 'bin'))
 
     TarantoolServer.find_exe(args.builddir, executable=args.executable)
     UnittestServer.find_exe(args.builddir)

lib/checks

@@ -125,7 +125,7 @@ def find_exe(cls, builddir):
         cls.binary = TarantoolServer.binary
         cls.debug = bool(re.findall(r'^Target:.*-Debug$', str(cls.version()),
                                     re.M))
-        cls.luatest = os.environ['TEST_RUN_DIR'] + '/lib/luatest/bin/luatest'
+        cls.luatest = os.environ['TEST_RUN_DIR'] + '/bin/luatest'
 
     @classmethod
     def verify_luatest_exe(cls):