name: build from source

on:
  push:
    branches: [master]
    paths:
      - .github/workflows/build.yaml
      - build/*
      - VERSION
  pull_request:
    paths:
      - .github/workflows/build.yaml
      - build/*
  workflow_dispatch:

env:
  GHCR_REPO: ghcr.io/${{ github.repository_owner }}/protonmail-bridge

jobs:
  build:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
      security-events: write
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Set version
        run: echo "version=$(cat VERSION)" >> $GITHUB_ENV

      - name: Login to GHCR
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}

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

      - name: Docker meta
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.GHCR_REPO }}
          tags: |
            type=raw,value=latest,enable=${{ github.ref == 'refs/heads/master' }}
            type=raw,value=${{ env.version }}

      - name: Build and push
        uses: docker/build-push-action@v6
        with:
          context: ./build
          file: ./build/Dockerfile
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          build-args: |
            version=${{ env.version }}
          cache-from: type=gha
          cache-to: type=gha,mode=max

      - name: Run Trivy vulnerability scan
        if: github.event_name != 'pull_request'
        uses: aquasecurity/trivy-action@0.30.0
        with:
          image-ref: "${{ env.GHCR_REPO }}:${{ env.version }}"
          format: sarif
          exit-code: 0
          severity: CRITICAL,HIGH
          output: trivy-results.sarif

      - name: Upload Trivy scan SARIF report
        if: github.event_name != 'pull_request'
        uses: github/codeql-action/upload-sarif@v3
        with:
          sarif_file: trivy-results.sarif