Merge remote-tracking branch 'origin/wip5.7.0' into mapgen_earth #50

	name: lua_lint

	# Lint on lua changes on builtin or if workflow changed
	on:
	push:
	paths:
	- 'builtin/**.lua'
	- 'games/devtest/**.lua'
	- '.github/workflows/**.yml'
	pull_request:
	paths:
	- 'builtin/**.lua'
	- 'games/devtest/**.lua'
	- '.github/workflows/**.yml'

	jobs:
	# Note that the integration tests are also run build.yml, but only when C++ code is changed.
	integration_tests:
	name: "Compile and run multiplayer tests"
	runs-on: ubuntu-20.04
	steps:
	- uses: actions/checkout@v3
	with:
	submodules: recursive
	fetch-depth: 10
	- name: Install deps
	run: \|
	source ./util/ci/common.sh
	install_linux_deps clang-10 gdb libluajit-5.1-dev

	- name: Build
	run: \|
	./util/ci/build.sh
	env:
	CC: clang-10
	CXX: clang++-10
	CMAKE_FLAGS: "-DENABLE_GETTEXT=0 -DBUILD_SERVER=0"

	- name: Integration test + devtest
	run: \|
	./util/test_multiplayer.sh

	luacheck:
	name: "Builtin Luacheck and Unit Tests"
	runs-on: ubuntu-20.04

	steps:

	- uses: actions/checkout@v3
	with:
	submodules: recursive
	fetch-depth: 10
	- uses: leafo/gh-actions-lua@v9
	with:
	luaVersion: "5.1.5"
	- uses: leafo/gh-actions-luarocks@v4

	- name: Install LuaJIT
	run: \|
	cd $HOME
	git clone https://github.com/LuaJIT/LuaJIT/
	cd LuaJIT
	make -j$(nproc)

	- name: Install luarocks tools
	run: \|
	luarocks install --local luacheck
	luarocks install --local busted

	- name: Run checks (builtin)
	run: \|
	$HOME/.luarocks/bin/luacheck builtin
	$HOME/.luarocks/bin/busted builtin
	$HOME/.luarocks/bin/busted builtin --lua=$HOME/LuaJIT/src/luajit

	- name: Run checks (devtest)
	run: \|
	$HOME/.luarocks/bin/luacheck --config=games/devtest/.luacheckrc games/devtest

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