name: Docker Build and Push
description: Build, test, tag, and optionally push the Hamkar image
inputs:
  image:
    description: Full OCI image name without a tag
    required: true
  branch:
    description: Human-readable image tag
    required: true
  commit_sha:
    description: Immutable commit image tag
    required: true
  push:
    description: Push both tags to the registry
    required: false
    default: "true"
runs:
  using: composite
  steps:
    - name: Build image
      shell: bash
      env:
        IMAGE: ${{ inputs.image }}
        BRANCH: ${{ inputs.branch }}
        COMMIT_SHA: ${{ inputs.commit_sha }}
        PUSH_IMAGE: ${{ inputs.push }}
      run: |
        set -euo pipefail

        go_proxy="${GOPROXY:-https://proxy.golang.org/}"
        output=(--load)
        if [[ "$PUSH_IMAGE" == "true" ]]; then
          output=(--push)
        fi

        docker buildx build \
          -f build/dockerfile \
          --build-arg "GO_PROXY=$go_proxy" \
          --label "org.opencontainers.image.revision=$COMMIT_SHA" \
          --label "org.opencontainers.image.source=${GITHUB_SERVER_URL:-}" \
          "${output[@]}" \
          -t "$IMAGE:$BRANCH" \
          -t "$IMAGE:$COMMIT_SHA" \
          .