linux

ci: add dependabot.yml to update GitHub actions regularly #28

	name: linux
	on:
	- push
	- pull_request
	jobs:
	build:
	runs-on: ${{ matrix.os }}
	strategy:
	fail-fast: false
	matrix:
	ruby: [ '2.4', '2.5', '2.6', '2.7', '3.0' ]
	postgres: [ '9', '10', '11', '12', '13' ]
	os:
	- ubuntu-latest
	services:
	postgres:
	image: postgres:${{ matrix.postgres }}
	ports:
	- 5432:5432
	env:
	POSTGRES_USER: postgres
	POSTGRES_PASSWORD: password
	POSTGRES_DB: test
	options: >-
	--health-cmd pg_isready
	--health-interval 10s
	--health-timeout 5s
	--health-retries 5
	name: Ruby ${{ matrix.ruby }} unit testing on ${{ matrix.os }}
	steps:
	- uses: actions/checkout@v2
	- uses: ruby/setup-ruby@v1
	with:
	ruby-version: ${{ matrix.ruby }}
	- name: prepare database
	env:
	PGPASSWORD: password
	run: \|
	psql -h localhost -p 5432 -U postgres -c "create role fluentd with LOGIN CREATEDB password 'fluentd';"
	psql -h localhost -p 5432 -U postgres -c "create database pgjsontest owner fluentd encoding 'utf-8'" -U postgres
	- name: unit testing
	env:
	CI: true
	run: \|
	gem install bundler rake
	bundle install --jobs 4 --retry 3
	bundle exec rake test

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