brew.yml

on: 
  workflow_dispatch:
    inputs:
      tag:
        description: 'Release tag'     
        required: true

name: Manual Homebrew Push

jobs:
  formula:
    runs-on: ubuntu-latest
    name: Push updated Homebrew formula
    steps:
      - name: Checkout sources
        uses: actions/checkout@v2
      - name: Fetch checksum file
        uses: dsaltares/fetch-gh-release-asset@master
        with:
          file: "checksum.txt"
          target: "checksum.txt"
          version: "tags/${{ github.event.inputs.tag }}"
      - name: Fetch checksums
        id: checksums
        run: |
          APPLE=$(cat checksum.txt | grep release/x86_64-apple-darwin.tar.gz | cut -d " " -f 1)
          LINUX=$(cat checksum.txt | grep release/x86_64-unknown-linux-gnu.tar.gz | cut -d " " -f 1)

          echo "::set-output name=sha256_apple::$APPLE"
          echo "::set-output name=sha256_linux::$LINUX"
      - name: Build formula
        uses: cuchi/jinja2-action@v1.2.0
        with:
          template: ci/brew.rb.j2
          output_file: vaultssh.rb
          strict: true
          variables: |
            SHA256_APPLE=${{ steps.checksums.outputs.sha256_apple }}
            SHA256_LINUX=${{ steps.checksums.outputs.sha256_linux }}
            VERSION=${{ github.event.inputs.tag }}
      - name: Encode formula with base64
        id: encode
        run: |
          BASE64=$(base64 -w 0 vaultssh.rb)
          echo "::set-output name=base64::$BASE64"
      - name: Dispatch update to homebrew tap repository
        uses: peter-evans/repository-dispatch@v1
        with:
          token: "${{ secrets.HOMEBREW_TAP_GITHUB_TOKEN }}"
          repository: jmgilman/homebrew-apps
          event-type: update
          client-payload: |
            {
              "content": "${{ steps.encode.outputs.base64 }}",
              "name": "vaultssh",
              "version": "${{ github.event.inputs.tag }}"
            }
      - name: Upload formula as artifact
        uses: actions/upload-artifact@v2
        with:
          name: formula
          path: vaultssh.rb