Update build.yml

.github/workflows/build.yml

@@ -5,9 +5,6 @@ name: Build
 
 on:
   push:
-    branches: [ master ]
-  pull_request:
-    branches: [ master ]
 
 jobs:
   build-gradle:
@@ -38,7 +35,6 @@ jobs:
     runs-on: ubuntu-latest
     needs:
       - build-gradle
-    if: github.ref == 'refs/heads/master'
     steps:
       - uses: actions/checkout@v2
 
@@ -60,10 +56,24 @@ jobs:
           username: ${{ github.repository_owner }}
           password: ${{ secrets.CR_PAT }}
 
+      - name: Get branch name
+        id: branch-name
+        uses: tj-actions/branch-names@v5.2
+
+      - name: Set tag master
+        if: steps.branch-name.outputs.current_branch == 'master'
+        run: |
+          echo "tag=latest" >> $GITHUB_ENV
+
+      - name: Set tag
+        if: steps.branch-name.outputs.current_branch != 'master'
+        run: |
+          echo "tag=${{ steps.branch-name.outputs.current_branch }}" >> $GITHUB_ENV
+
       - name: Build and push Docker
         uses: docker/build-push-action@v2
         with:
           push: true
           context: .
-          tags: ghcr.io/sebclem/claptrapbot:latest
-          file: ./Dockerfile
+          tags: "ghcr.io/sebclem/claptrapbot:${{ env.tag }}"
+          file: ./Dockerfile