add ghcr workflow

.github/workflows/build-docker-images.yml

@@ -0,0 +1,67 @@
+name: Build and Push Docker Images
+
+on:
+  push:
+    branches: [develop, 'GEN*', 'gen*']
+    paths:
+      - 'scripts/references/**'
+      - '.github/workflows/build-docker-images.yml'
+  workflow_dispatch:
+
+jobs:
+  build_references_docker:
+    runs-on: ubuntu-latest
+    env:
+      REGISTRY: ghcr.io
+      IMAGE_NAME: sage-bionetworks/genie-bpc-pipeline
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v3
+      with:
+        fetch-depth: 2
+
+    - name: Setup Docker buildx
+      uses: docker/setup-buildx-action@v3
+
+    - name: Fetch the default branch (develop) for comparison
+      run: git fetch origin develop:refs/remotes/origin/develop --depth=1
+
+    - name: Check for Changes in scripts/references
+      id: check_changes
+      run: |
+        # Check for a merge base, fallback to root commit if none exists
+        if git merge-base --is-ancestor origin/develop HEAD; then
+          DIFF_BASE="origin/develop"
+        else
+          DIFF_BASE=$(git rev-list --max-parents=0 HEAD)  # Use the initial commit as fallback
+        fi
+
+        # Compare changes between DIFF_BASE and HEAD
+        if git diff --name-only $DIFF_BASE -- scripts/references | grep -q .; then
+          echo "CHANGED=true" >> $GITHUB_ENV
+        else
+          echo "CHANGED=false" >> $GITHUB_ENV
+        fi
+
+    - name: Log in to GitHub Container Registry
+      if: env.CHANGED == 'true'
+      uses: docker/login-action@v3
+      with:
+        registry: ${{ env.REGISTRY }}
+        username: ${{ github.actor }}
+        password: ${{ secrets.GITHUB_TOKEN }}
+
+    - name: Build and Push Docker Image for scripts/references
+      if: env.CHANGED == 'true'
+      uses: docker/build-push-action@v5
+      with:
+        context: scripts/references
+        push: true
+        tags: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:references-${{ github.ref_name }}
+        cache-from: type=registry,ref=${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:references-${{ github.ref_name }}-cache
+        cache-to: type=inline,mode=max
+