name: Build ESP-IDF Toolchain Image

# Runs when Dockerfile.espidf-toolchain changes, or manually
on:
  push:
    branches: [master]
    paths:
      - 'Dockerfile.espidf-toolchain'
  workflow_dispatch:

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository_owner }}/velxio-espidf-toolchain

permissions:
  contents: read
  packages: write

jobs:
  build-toolchain:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Log in to GHCR
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build and push ESP-IDF toolchain image
        uses: docker/build-push-action@v6
        with:
          context: .
          file: Dockerfile.espidf-toolchain
          push: true
          tags: |
            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest
            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:idf-4.4.7
          cache-from: type=gha,scope=espidf
          cache-to: type=gha,scope=espidf,mode=max