PluralKit/.github/workflows/rust.yml

# todo: use https://github.com/jpribyl/action-docker-layer-caching
# todo: make this generic for all Rust images in this repo
# todo: don't use docker/build-push-action
# todo: run builds on pull request

name: Build and push API Docker image
on:
  push:
    branches:
      - main
      - 'rust-api'
    paths:
    - 'lib/pklib/**'
    - 'services/api/**'

jobs:
  deploy:
    runs-on: ubuntu-latest
    permissions:
      packages: write
    if: github.repository == 'PluralKit/PluralKit'
    steps:
      - uses: docker/login-action@v1
        if: ${{ !env.ACT }}
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.CR_PAT }}

      - uses: actions/checkout@v2
      - uses: docker/setup-buildx-action@v1

      # main docker build
      - run: echo "BRANCH_NAME=${GITHUB_REF#refs/heads/}" >> $GITHUB_ENV
      - uses: docker/build-push-action@v2
        with:
          # https://github.com/docker/build-push-action/issues/378
          context: .
          file: Dockerfile.rust
          push: false 
          cache-from: type=gha
          cache-to: type=gha
          outputs: .docker-bin

      # add more binaries here
      - run: |
          for binary in "api"; do
            for tag in latest ${{ env.BRANCH_NAME }} ${{ github.sha }}; do
              cat Dockerfile.bin | sed "s/__BINARY__/$binary/g" | docker build -t ghcr.io/pluralkit/$binary/$tag -f - .
            done
            if [ "${{ github.repository }}" == "PluralKit/PluralKit" ]; then
              docker push ghcr.io/pluralkit/$binary:${{ env.BRANCH_NAME }}
              docker push ghcr.io/pluralkit/$binary:${{ github.sha }}
              [ "${{ env.BRANCH_NAME }}" == "main" ] && docker push ghcr.io/pluralkit/$binary:latest
            fi
          done