ci: validate against multiple versions #173

	name: CI

	on:
	pull_request:
	branches:
	- 'main'
	push:
	branches:
	- 'main'
	jobs:
	build:

	runs-on: ubuntu-latest
	strategy:
	matrix:
	go-version: [1.19, 1.20, 1.21]
	steps:
	- uses: actions/checkout@v3

	- name: Set up Go
	uses: actions/setup-go@v4
	with:
	go-version: ${{ matrix.go-version }}

	- name: Build Confidence
	run: cd pkg/confidence && go build -v .

	- name: Build Provider
	run: cd pkg/provider && go build -v .

	- name: Test Confidence
	run: cd pkg/confidence && go test -v

	- name: Test Provider
	run: cd pkg/provider && go test -v

	- name: Run gofmt
	run: \|
	modules=("pkg/confidence" "pkg/provider" "demo" "demo-open-feature")
	fmt_issues=""
	for module in "${modules[@]}"; do
	fmt_output=$(gofmt -l "$module")
	if [ -n "$fmt_output" ]; then
	fmt_issues+="$fmt_output"$'\n'
	fi
	done

	if [ -n "$fmt_issues" ]; then
	echo "The following files are not properly formatted:"
	echo "$fmt_issues"
	echo "Please run 'gofmt -w .' in the respective module directories to format your code."
	exit 1
	fi

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