# This is the Github action to build and push the tinygo/tinygo-dev Docker image.
# If you are looking for the tinygo/tinygo "release" Docker image please see
# https://github.com/tinygo-org/docker
#
# The compiler image is built on top of an LLVM image. The LLVM image is built
# only when the registry holds no image for the current LLVM version and build
# recipe, so a change to TinyGo alone does not build LLVM again. An LLVM build
# takes at least 1-2 hours.
#
# Use the manual trigger with force-llvm to build the LLVM image again.
name: Docker
on:
  push:
    branches: [ dev ]
  workflow_dispatch:
    inputs:
      force-llvm:
        description: Build the LLVM image again
        type: boolean
        default: false

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  llvm:
    name: build-push-llvm
    runs-on: ubuntu-latest
    permissions:
      packages: write
      contents: read
    outputs:
      image: ${{ steps.tag.outputs.image }}
    steps:
      - name: Free Disk space
        shell: bash
        run: |
          df -h
          sudo rm -rf /opt/hostedtoolcache
          sudo rm -rf /usr/local/lib/android
          sudo rm -rf /usr/share/dotnet
          sudo rm -rf /opt/ghc
          sudo rm -rf /usr/local/graalvm
          sudo rm -rf /usr/local/share/boost
          df -h
      - name: Check out the repo
        uses: actions/checkout@v6
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v4
      - name: Log in to Github Container Registry
        uses: docker/login-action@v4
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - name: Get the image tag
        id: tag
        shell: bash
        run: |
          tag=$(sh tools/llvm-image-tag.sh)
          echo "image=ghcr.io/${{ github.repository_owner }}/llvm-22:$tag" >> "$GITHUB_OUTPUT"
      - name: Look for the image
        id: check
        shell: bash
        run: |
          if docker buildx imagetools inspect "${{ steps.tag.outputs.image }}" > /dev/null 2>&1; then
            echo "exists=true" >> "$GITHUB_OUTPUT"
          else
            echo "exists=false" >> "$GITHUB_OUTPUT"
          fi
      - name: Build and push
        if: steps.check.outputs.exists != 'true' || inputs.force-llvm
        uses: docker/build-push-action@v7
        with:
          context: .
          file: Dockerfile.llvm
          push: true
          tags: ${{ steps.tag.outputs.image }}

  push_to_registry:
    name: build-push-dev
    needs: llvm
    runs-on: ubuntu-latest
    permissions:
      packages: write
      contents: read
    steps:
      - name: Free Disk space
        shell: bash
        run: |
          df -h
          sudo rm -rf /opt/hostedtoolcache
          sudo rm -rf /usr/local/lib/android
          sudo rm -rf /usr/share/dotnet
          sudo rm -rf /opt/ghc
          sudo rm -rf /usr/local/graalvm
          sudo rm -rf /usr/local/share/boost
          df -h
      - name: Check out the repo
        uses: actions/checkout@v6
        with:
          submodules: recursive
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v4
      - name: Docker meta
        id: meta
        uses: docker/metadata-action@v6
        with:
          images: |
            tinygo/tinygo-dev
            ghcr.io/${{ github.repository_owner }}/tinygo-dev
          tags: |
            type=sha,format=long
            type=raw,value=latest
      - name: Log in to Docker Hub
        uses: docker/login-action@v4
        with:
          username: ${{ secrets.DOCKER_HUB_USERNAME }}
          password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}
      - name: Log in to Github Container Registry
        uses: docker/login-action@v4
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - name: Build and push
        uses: docker/build-push-action@v7
        with:
          context: .
          push: true
          build-args: |
            LLVM_IMAGE=${{ needs.llvm.outputs.image }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=registry,ref=ghcr.io/${{ github.repository_owner }}/tinygo-dev:buildcache
          cache-to: type=registry,ref=ghcr.io/${{ github.repository_owner }}/tinygo-dev:buildcache,mode=max,ignore-error=true