build.yaml

on:
  workflow_call:
    inputs:
      sha-tag:
        description: "A short-form SHA tag for the commit that triggered this flow"
        required: true
        type: string
      lower-repo:
        description: "The repository name in lowercase"
        required: true
        type: string

jobs:
  build:
    name: Build & Push
    runs-on: ubuntu-latest
    steps:
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v4

      - name: Login to Github Container Registry
        uses: docker/login-action@v4
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ github.token }}

      - name: Build and push
        uses: docker/build-push-action@v7
        with:
          push: ${{ github.ref_name == github.event.repository.default_branch }}
          cache-from: type=registry,ref=ghcr.io/${{ inputs.lower-repo }}:latest
          cache-to: type=inline
          tags: |
            ghcr.io/${{ inputs.lower-repo }}:latest
            ghcr.io/${{ inputs.lower-repo }}:${{ inputs.sha-tag }}
          build-args: git_sha=${{ github.sha }}