name: Bazel Build

on: push

jobs:
    bazel_build:
        name: Bazel Build
        runs-on: ubuntu-latest
        steps:
            - uses: actions/checkout@master

            - name: Mount bazel cache
              uses: actions/cache@v2.1.1
              with:
                  path: |
                      /home/runner/.cache/bazel
                      /home/runner/.cache/bazel-disk-cache
                  key: bazel

            - name: Install bazelisk
              run: |
                  curl -LO "https://github.com/bazelbuild/bazelisk/releases/download/v1.1.0/bazelisk-linux-amd64"
                  mkdir -p "${GITHUB_WORKSPACE}/bin/"
                  mv bazelisk-linux-amd64 "${GITHUB_WORKSPACE}/bin/bazel"
                  chmod +x "${GITHUB_WORKSPACE}/bin/bazel"

            - name: Test
              run: |
                  "${GITHUB_WORKSPACE}/bin/bazel" test \
                    -k -c opt \
                    --stamp \
                    --workspace_status_command hack/workspace_status.sh --\
                      //src/... //hack/... -//hack/dev-container/...

            - name: Docker Login
              run: |
                  echo ${{github.token}} | docker login -u ${{github.actor}} --password-stdin docker.pkg.github.com

            - name: Publish Artifacts
              run: |
                  "${GITHUB_WORKSPACE}/bin/bazel" query //src/... |\
                  grep +publish |\
                  xargs -l1 "${GITHUB_WORKSPACE}/bin/bazel" run \
                    -c opt \
                    --stamp \
                    --workspace_status_command hack/workspace_status.sh

            - name: Write Artifact Manifest
              run: |
                  artifacts=$(${GITHUB_WORKSPACE}/bin/bazel query //src/... | grep +publish)
                  publishedServices=${artifacts//$'//src/'/}
                  publishedServices=${publishedServices//$':+publish'/}
                  manifestJSON='{"services": {}}'
                  for svc in $publishedServices; do 
                    manifestJSON=$(echo $manifestJSON | jq ".services+={\"$svc\":\"$(cat bazel-bin/src/$svc/+publish.digest)\"}")
                  done
                  echo $manifestJSON > manifest.json

            - name: Upload Artifact Manifest
              uses: actions/upload-artifact@v2
              with:
                  name: manifest.json
                  path: manifest.json