Add schema generator #9

	name: Crystal Specs with PostgreSQL

	on:
	push: {}
	pull_request:
	branches: [ main, master ]

	jobs:
	test:
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	crystal:
	- 1.13.3
	- 1.14.1
	- latest
	- nightly
	postgres:
	- "14"
	- "15"
	- "16"
	- "17"

	# Service containers to run with the job
	services:
	# PostgreSQL service
	postgres:
	image: postgres:${{ matrix.postgres }}
	env:
	POSTGRES_USER: postgres
	POSTGRES_PASSWORD: postgres
	POSTGRES_DB: crystal_test
	ports:
	# Map port 5432 on service container to the host
	- 5432:5432
	# Set health checks to wait until postgres has started
	options: >-
	--health-cmd pg_isready
	--health-interval 10s
	--health-timeout 5s
	--health-retries 5

	steps:
	# Check out repository code
	- name: Checkout code
	uses: actions/checkout@v3

	# Install Crystal
	- name: Setup Crystal
	uses: crystal-lang/install-crystal@v1
	with:
	crystal: ${{ matrix.crystal }}


	# Install Crystal dependencies
	- name: Install dependencies
	run: shards install

	# Run Crystal specs
	- name: Run tests
	run: crystal spec
	env:
	# Environment variables to connect to PostgreSQL
	DATABASE_URL: postgres://postgres:postgres@localhost:5432/crystal_test

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