create-release.yml

name: Create Atlantis release

on:
  workflow_dispatch:
  repository_dispatch:
    types: [infracost_atlantis]

jobs:
  generate-release-matrix:
    name: Generate release matrix
    runs-on: ubuntu-latest
    outputs:
      matrix: ${{ steps.set-matrix.outputs.matrix }}
    steps:
      - id: set-matrix
        name: Set matrix
        shell: bash
        run: |
          cli=$(curl --header 'authorization: Bearer ${{ secrets.GITHUB_TOKEN }}' -s https://api.github.com/repos/infracost/infracost/releases | jq -r '[.[].tag_name] | map(capture("^v(?<major>0|[1-9]\\d*)\\.(?<minor>0|[1-9]\\d*)\\.(?<patch>0|[1-9]\\d*)$")) | map({version: "\(.major).\(.minor).\(.patch)", group: "\(.major).\(.minor)", major: .major | tonumber, minor: .minor | tonumber, patch:  .patch | tonumber}) | map(select(.minor >= 9)) | group_by(.group) | map (.[0]) | sort_by(.major, .minor, .patch) | reverse | .[:2] | . as $result | map({cli_version: .version, cli_release: .group, latest: (.version == $result[0].version)}) | tostring')
          atlantis=$(curl --header 'authorization: Bearer ${{ secrets.GITHUB_TOKEN }}' -s https://api.github.com/repos/runatlantis/atlantis/releases\?per_page\=100 | jq -r '[.[].tag_name] | map(capture("^v(?<major>0|[1-9]\\d*)\\.(?<minor>0|[1-9]\\d*)\\.(?<patch>0|[1-9]\\d*)$")) | map({version: "\(.major).\(.minor).\(.patch)", group: "\(.major).\(.minor)", major: .major | tonumber, minor: .minor | tonumber, patch:  .patch | tonumber}) | group_by(.group) | map (.[0]) | sort_by(.major, .minor, .patch) | reverse | .[:2] | . as $result | map({atlantis_version: .version, atlantis_release: .group, latest: (.version == $result[0].version)}) | tostring')
          matrix=$(jq --argjson atlantis $atlantis --argjson cli $cli -n -c '$atlantis | reduce .[] as $x ([]; . + [$cli | map (. + $x + {latest: (.latest and $x.latest)})]) | flatten | {include: .}')
          echo $matrix
          echo "::set-output name=matrix::$matrix"
  build:
    name: Create release for Atlantis ${{ matrix.atlantis_version}}, Infracost ${{ matrix.cli_version }}
    needs: generate-release-matrix
    runs-on: ubuntu-latest
    strategy:
      matrix: ${{fromJson(needs.generate-release-matrix.outputs.matrix)}}
    steps:
      - name: Checkout code
        uses: actions/checkout@v2

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1

      - name: Login to DockerHub
        uses: docker/login-action@v1
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}

      - name: Docker meta
        id: meta
        uses: docker/metadata-action@v3
        with:
          images: infracost/infracost-atlantis
          flavor: |
            latest=${{ matrix.latest }}
          tags: |
            type=raw,value=atlantis${{ matrix.atlantis_release }}-infracost${{ matrix.cli_release }}
          labels: |
            atlantis-version=${{ matrix.atlantis_version }}
            cli-version=${{ matrix.cli_version }}

      - name: Build and push Docker images
        uses: docker/build-push-action@v2
        with:
          context: .
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          build-args: |
            version=v${{ matrix.atlantis_version }}
            cli_version=v${{ matrix.cli_release }}
          push: true