udpate a.

Author: larryl3u

.github/workflows/docker-build.yml

@@ -6,6 +6,8 @@ on:
     tags:
       - 'v*'
       - 'release-*'
+  pull_request:
+    types: [labeled]
   workflow_dispatch:
     inputs:
       ref:
@@ -31,12 +33,16 @@ permissions:
 jobs:
   build:
     runs-on: buildjet-16vcpu-ubuntu-2204
+    # Only run if it's not a PR event, or if it's a PR with the movement-docker-build label
+    if: |
+      github.event_name != 'pull_request' || 
+      (github.event_name == 'pull_request' && github.event.label.name == 'movement-docker-build')
     steps:
       - uses: actions/checkout@v3
         with:
           fetch-depth: 0  # Fetch all history
-          # Use ref input if provided (manual trigger), otherwise GIT_SHA (backward compat), otherwise github.ref (push trigger)
-          ref: ${{ inputs.ref || inputs.GIT_SHA || github.ref }}
+          # For PRs, checkout the PR branch; for manual triggers use provided ref; otherwise use github.ref
+          ref: ${{ github.event.pull_request.head.sha || inputs.ref || inputs.GIT_SHA || github.ref }}
           token: ${{ secrets.GH_PAT }}  # Use PAT for checkout
 
       - name: Set up Docker Buildx
@@ -70,6 +76,6 @@ jobs:
           echo "  PROFILE: $PROFILE"
           echo "  FEATURES: $FEATURES"
           echo "  Git SHA: $(git rev-parse HEAD)"
-          echo "  Git Branch/Tag: $(git rev-parse --abbrev-ref HEAD)"
+          echo "  Event: ${{ github.event_name }}"
           
           docker/builder/docker-bake-rust-all.sh