name: Build Container
description: >-
  Build and test a container using the standard llvm naming scheme for containers.

inputs:
  tag:
    description: >-
      The tag to use for this container.
    required: false
  container-name:
    description: >-
      The name for the container.
    required: true
  dockerfile:
    description: >-
      Path to docker file.
    required: false
  target:
    description: >-
      The container target to build 'passed to podman via ---target option'
    required: false
  context:
    description: >-
      Path to context for the container build.
    required: false
  test-command:
    description: >-
      Test command to run to ensure the container is working correctly.
    required: false

runs:
  using: "composite"
  steps:
    # podman is not installed by default on the ARM64 images.
    - name: Install Podman
      if: runner.arch == 'ARM64'
      shell: bash
      run: |
        sudo apt-get install podman

    - name: Build Container
      shell: bash
      env:
        INPUT_TAG: ${{inputs.tag }}
        INPUT_CONTAINER_NAME: ${{ inputs.container-name }}
        INPUT_TARGET: ${{ inputs.target }}
        INPUT_DOCKERFILE: ${{ inputs.dockerfile }}
        INPUT_CONTEXT: ${{ inputs.context }}
      id: build
      run: |
        env
        tag="${INPUT_TAG:-$(git rev-parse --short=12 HEAD)}"

        case "$RUNNER_ARCH" in
          ARM64)
            container_arch="arm64v8"
            ;;
          *)
            container_arch="amd64"
            ;;
        esac

        container_name="ghcr.io/$GITHUB_REPOSITORY_OWNER/$container_arch/$INPUT_CONTAINER_NAME:$tag"
        container_filename="$(echo $container_name  | sed -e 's/\//-/g' -e 's/:/-/g').tar"
        if [ -n "$INPUT_TARGET" ]; then
          podman_options="$podman_options --target $INPUT_TARGET"
        fi
        if [ -n "$INPUT_DOCKERFILE" ]; then
          podman_options="$podman_options -f $INPUT_DOCKERFILE"
        fi
        podman_options="$podman_options ${INPUT_CONTEXT:-.}"
        echo "Podman Options: $podman_options"

        podman build -t $container_name $podman_options

        podman save $container_name > $container_filename

        echo "container-full-name=$container_name" >> $GITHUB_OUTPUT

    - name: Create container artifact
      uses: actions/upload-artifact@330a01c490aca151604b8cf639adc76d48f6c5d4 # v5.0.0
      with:
        name: ${{ inputs.container-name }}-${{ runner.arch }}
        path: "*.tar"
        retention-days: 14

    - name: Test container
      shell: bash
      if: inputs.test-command
      env:
        INPUT_TEST_COMMAND: ${{ inputs.test-command }}
        CONTAINER_FULL_NAME: ${{ steps.build.outputs.container-full-name }}
      run: |
        podman run --pull=never --rm -it $CONTAINER_FULL_NAME /usr/bin/bash -x -c "$INPUT_TEST_COMMAND"