Merge pull request #4646 from google/release-webhook

discord release webhook

Author: ZacCranko

.github/workflows/flax_publish.yml

@@ -42,3 +42,28 @@ jobs:
         run: ls -l dist/
       - name: Publish package distributions to PyPI
         uses: pypa/gh-action-pypi-publish@76f52bc884231f62b9a034ebfe128415bbaabdfc  # v1.12.4
+
+  discord_release:
+    if: github.repository_owner == 'google'
+    runs-on: ubuntu-latest
+    steps:
+      - name: Get release URL
+        id: get-release-url
+        run: |
+          URL="https://github.com/google/flax/releases"
+          echo "::set-output name=URL::$URL"
+      - name: Get content
+        uses: 2428392/gh-truncate-string-action@b3ff790d21cf42af3ca7579146eedb93c8fb0757 # v1.4.1
+        id: get-content
+        with:
+          stringToTruncate: |
+            Flax [${{ github.event.release.tag_name }}](<${{ steps.get-release-url.outputs.URL }}>) was just released!
+
+            ${{ github.event.release.body }}
+          maxLength: 2000
+          truncationSymbol: "..."
+      - name: Discord Webhook Action
+        uses: tsickert/discord-webhook@c840d45a03a323fbc3f7507ac7769dbd91bfb164 # v5.3.0
+        with:
+          webhook-url: ${{ secrets.DISCORD_WEBHOOK_URL }}
+          content: ${{ steps.get-content.outputs.string }}