CMake

Use JSON type -1 as placeholder. #91

	name: CMake

	on:
	push:
	branches: [ main ]
	pull_request:
	branches: [ main ]

	jobs:
	build:
	name: build-linux
	runs-on: ubuntu-latest

	steps:
	- name: install dependencies
	run: \|
	sudo apt-get update
	sudo apt-get install -y g++ clang cmake make libgtest-dev

	- name: setup xmake
	uses: xmake-io/github-action-setup-xmake@v1
	with:
	xmake-version: latest

	- name: pull code
	uses: actions/checkout@v2

	- name: gcc make
	run: \|
	xmake f --cc=gcc --cxx=g++ --yes
	xmake -r
	xmake build -rg test
	xmake build -rg example

	- name : run test(gcc)
	run: \|
	xmake run -g test
	xmake run -g example

	- name: clang make
	run: \|
	xmake f --cc=clang --cxx=clang++
	xmake -r
	xmake build -rg test
	xmake build -rg example

	- name : run test(clang)
	run: \|
	xmake run -g test
	xmake run -g example

Provide feedback