refactor: replace YAML schema check with a dispatch call (#3482)

* Replace yaml check with a dispatch call

* split workflow

* add branch for testing

* access secrets properly

* remove testing branch trigger

.github/workflows/openapi.yml

@@ -1,16 +1,12 @@
-name: Schemas
+name: OpenAPI Schema
 
 on:
   workflow_dispatch: # Activate this workflow manually
   pull_request:
-  push:
-    branches:
-      # release branches have the form v1.9.x
-      - 'v[0-9].*[0-9].x'
 
 jobs:
 
-  openapi:
+  run:
     runs-on: ubuntu-latest
     steps:
 
@@ -56,45 +52,3 @@ jobs:
             echo "###################################################################################################"
             exit 1
           fi
-
-  pipeline-yaml:
-    runs-on: ubuntu-latest
-    steps:
-
-      - uses: actions/checkout@v2
-
-      - name: Setup Python
-        uses: ./.github/actions/python_cache/
-
-      - name: Install sndfile
-        run: sudo apt update && sudo apt-get install libsndfile1 ffmpeg
-
-      - name: Install Haystack
-        run: |
-          pip install --upgrade pip
-          pip install -U .[all]
-
-      - name: Update pipeline YAML schemas
-        run: python .github/utils/generate_json_schema.py
-
-      - name: Check status
-        run: |
-          if [[ `git status --porcelain` ]]; then
-            git status
-            echo "##################################################################################################"
-            git diff
-            echo "##################################################################################################"
-            echo "# "
-            echo "# CHECK FAILED! The YAML schemas for pipelines were not updated."
-            echo "# "
-            echo "# Please generate the new schemas locally:"
-            echo "# "
-            echo "#     python .github/utils/generate_json_schema.py"
-            echo "# "
-            echo "# Or see https://github.com/deepset-ai/haystack/blob/main/CONTRIBUTING.md for help."
-            echo "# "
-            echo "# If you have further problems, please open an issue: https://github.com/deepset-ai/haystack/issues"
-            echo "# "
-            echo "##################################################################################################"
-            exit 1
-          fi

.github/workflows/pipeline_schema.yml

@@ -0,0 +1,23 @@
+name: YAML Schema
+
+on:
+  workflow_dispatch: # Activate this workflow manually
+  push:
+    branches:
+      - main
+
+jobs:
+
+  run:
+    runs-on: ubuntu-latest
+    steps:
+      # Start a workflow in https://github.com/deepset-ai/haystack-json-schema 
+      # https://docs.github.com/en/rest/repos/repos#create-a-repository-dispatch-event
+      - name: Dispatch to schemas repository
+        run: |
+          curl \
+          -X POST \
+          -H "Accept: application/vnd.github+json" \
+          -H "Authorization: Bearer ${{ secrets.HAYSTACK_BOT_TOKEN }}" \
+          https://api.github.com/repos/deepset-ai/haystack-json-schema/dispatches \
+          -d '{"event_type":"generate-pipeline-schemas","client_payload":{}}'