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path: root/.github/workflows/llvm.yml
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# This is the Github action to build and push the LLVM Docker image
# used by the tinygo/tinygo-dev Docker image.
#
# It only needs to be rebuilt when updating the LLVM version.
#
# To update, make any needed changes to this file,
# then push to the "build-llvm-image" branch.
#
# The needed image will be rebuilt, which will very likely take at least 1-2 hours.
name: LLVM
on:
  push:
    branches: [ build-llvm-image ]

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

jobs:
  build-push-llvm:
    name: build-push-llvm
    runs-on: ubuntu-latest
    permissions:
      packages: write
      contents: read
    steps:
      - name: Check out the repo
        uses: actions/checkout@v4
        with:
          submodules: recursive
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3
      - name: Docker meta
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: |
            tinygo/llvm-18
            ghcr.io/${{ github.repository_owner }}/llvm-18
          tags: |
            type=sha,format=long
            type=raw,value=latest
      - name: Log in to Docker Hub
        uses: docker/login-action@v2
        with:
          username: ${{ secrets.DOCKER_HUB_USERNAME }}
          password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}
      - name: Log in to Github Container Registry
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - name: Build and push
        uses: docker/build-push-action@v5
        with:
          target: tinygo-llvm-build
          context: .
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=gha
          cache-to: type=gha,mode=max