build_docker_builder.yml

name: Build Docker image for building PGlite

concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
  cancel-in-progress: true

on:
  workflow_dispatch:
    inputs:
      message:
        description: 'Build PGlite builder Docker image'
  push:
    branches: ['main']
  pull_request:

env:
  DOCKERHUB_REPO: electricsql
  IMAGE_NAME: pglite-builder

jobs:
  build:
    name: Build Docker image
    runs-on: ubuntu-22.04
    environment: PGlite Build Parameters
    env:
      PG_VERSION: ${{ vars.PG_VERSION }}
      SDK_VERSION: ${{ vars.PYTHON_WASM_SDK_VERSION }}
    steps:
      - name: Log build parameters
        run: |
          echo "Building with PG_VERSION=${PG_VERSION} and SDK_VERSION=${SDK_VERSION}"

      - name: Set image name and tag
        id: set-image-name
        run: |
          echo "IMGNAME=${{ env.DOCKERHUB_REPO }}/${{ env.IMAGE_NAME }}" >> $GITHUB_ENV
          echo "IMGTAG=${{ env.PG_VERSION }}_${{ env.SDK_VERSION }}" >> $GITHUB_ENV

      - name: Check if image exists
        id: image-exists
        run: |
          if docker manifest inspect ${{ env.DOCKERHUB_REPO }}/${{ env.IMAGE_NAME }}:${{ env.PG_VERSION }}-${{ env.SDK_VERSION }} > /dev/null 2>&1; then
            echo "exists=true" >> $GITHUB_ENV
            echo "::set-output name=exists::true"
          else
            echo "exists=false" >> $GITHUB_ENV
            echo "::set-output name=exists::false"
          fi

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3
        if: steps.image-exists.outputs.exists == 'false'

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3
        if: steps.image-exists.outputs.exists == 'false'

      - uses: actions/checkout@v4
        if: steps.image-exists.outputs.exists == 'false'

      - name: Build and push
        uses: docker/build-push-action@v6
        if: steps.image-exists.outputs.exists == 'false'
        with:
          platforms: linux/amd64,linux/arm64
          push: true
          build-args: |
            PG_VERSION=${PG_VERSION}
            SDK_VERSION=${SDK_VERSION}
          tags: |
            ${PGLITE_BUILDER_IMAGE_NAME}:${BUILDER_VERSION}
            ${PGLITE_BUILDER_IMAGE_NAME}:latest