Add tests for tree as well #1172

	name: Static Analysis
	on: [push, pull_request]
	permissions:
	contents: read

	jobs:
	static_analysis:
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false

	steps:
	- uses: actions/checkout@v3
	with:
	persist-credentials: false
	- uses: WillAbides/setup-go-faster@v1.8.0
	with:
	go-version: '1.20.x'

	- name: Get dependencies
	run: >-
	sudo apt-get update &&
	sudo apt-get install
	gcc
	libegl1-mesa-dev
	libgl1-mesa-dev
	libgles2-mesa-dev
	libx11-dev
	xorg-dev
	xvfb

	- name: Install analysis tools
	run: \|
	go install golang.org/x/tools/cmd/goimports@latest
	go install github.com/fzipp/gocyclo/cmd/gocyclo@latest
	go install honnef.co/go/tools/cmd/staticcheck@v0.4.2
	go install github.com/mattn/goveralls@latest

	- name: Vet
	run: go vet ./...

	- name: Goimports
	run: test -z "$(goimports -e -d . \| tee /dev/stderr)"

	- name: Gocyclo
	run: gocyclo -over 30 .

	- name: Staticcheck
	run: staticcheck ./...

	- name: Update coverage
	run: \|
	set -e
	xvfb-run go test -covermode=atomic -coverprofile=coverage.out ./...
	coverage=`go tool cover -func coverage.out \| grep total \| tr -s '\t' \| cut -f 3 \| grep -o '[^%]*'`
	if (( $(echo "$coverage < 63" \| bc) )); then echo "Test coverage lowered"; exit 1; fi

	- name: Update PR Coverage
	uses: shogo82148/actions-goveralls@v1
	with:
	path-to-profile: coverage.out

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