improve deploy workflow 2

.github/workflows/build.yml

@@ -1,4 +1,4 @@
-name: "Continuous Integration"
+name: "build"
 
 on:
   push:

.github/workflows/deploy.yml

@@ -1,24 +1,43 @@
-name: "Deploy"
+name: "maybe deploy"
 
 on:
-  push:
+  workflow_run:
-    tags:
+    workflows: [ "build" ]
-      - "v*"
+    types: [ "completed" ]
+    branches: [ "master" ]
+
 
 permissions:
   contents: "write"
 
 jobs:
+  check-early-exit:
+    runs-on: "ubuntu-latest"
+    outputs:
+      should-deploy: "${{ steps.check-early-exit.outputs.should-deploy }}"
+    steps:
+      - run: |
+          if [ "${{ github.event.workflow_run.conclusion }}" != "success" ]; then
+            echo "Not deploying because the CI workflow did not succeed."
+            echo "should-deploy=false" >> $GITHUB_ENV
+          elif ! echo "${{ github.ref }}" | grep -q -E "^refs/tags/v[0-9]+\.[0-9]+\.[0-9]+.*"; then
+            echo "Not deploying because the CI workflow was not triggered by a release tag."
+            echo "should-deploy=false" >> $GITHUB_ENV
+          else
+            echo "should-deploy=true" >> $GITHUB_ENV
+          fi
   deploy:
     concurrency: "ci-${{ github.ref }}" # Recommended if you intend to make multiple deployments in quick succession.
     runs-on: "ubuntu-latest"
+    needs: "check-early-exit"
+    if: "needs.check-early-exit.outputs.should-deploy == 'true'"
     steps:
-      - uses: "actions/download-workflow-artifact@v3"
+      - uses: "dawidd6/action-download-artifact@v3"
         with:
           workflow: "ci.yml"
           name: "frontend"
           path: "./public"
-      - uses: "actions/download-workflow-artifact@v3"
+      - uses: "dawidd6/action-download-artifact@v3"
         with:
           workflow: "ci.yml"
           name: "logo"