add github action #1

	# https://github.com/marketplace/actions/build-and-push-docker-images
	name: Build, Test and Push Docker Image

	runs-on: ubuntu-latest

	jobs:
	base-image:
	on:
	push:
	paths:
	- requirements.txt
	- Dockerfile
	steps:
	# - name: Enable Commit Hash
	# uses: prompt/actions-commit-hash@v3
	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v3
	- name: Build image and push
	uses: docker/build-push-action@v5
	with:
	push: false
	target: base
	# tags: mercury/farmers-report-base:${{ steps.commit.outputs.short }}
	tags: mercury/farmers-report-base:latest
	outputs: type=docker,dest=/tmp/base-image.tar
	- name: Upload artifact
	uses: actions/upload-artifact@v4
	with:
	name: BaseImage
	path: /tmp/base-image.tar

	test-code:
	on:
	push
	steps:
	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v3
	- name: Download artifact
	uses: actions/download-artifact@v4
	with:
	name: BaseImage
	path: /tmp
	- name: Load image
	run: \|
	docker load --input /tmp/base-image.tar
	- name: Test code
	run: \|
	docker run -v $(pwd):/code -w /code mercury/farmers-report-base:latest Rscript /code/tests/testthat.R

	docker-image:
	on:
	pull_request:
	branches:
	- master
	if: github.event.pull_request.merged == true
	steps:
	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v3
	- name: Login to Docker Hub
	uses: docker/login-action@v3
	with:
	username: ${{ vars.DOCKERHUB_USERNAME }}
	password: ${{ secrets.DOCKERHUB_TOKEN }}
	- name: Build image and push
	uses: docker/build-push-action@v5
	with:
	tags: mercury/farmers-report:latest

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