Add YAML validation workflow and schema definition (#1)

* Add YAML validation workflow and schema definition

* Remove useless category for providers schema

* Add Massa Labs provider

* Fix wrong providers files paths in validate workflow

* Fix schema and add regex validation for URL and contact fields

* Update workflow to use Ubuntu 22.04 for YAML validation

* Add workflow to consolidate YAML files and upload as artifact

.github/workflows/consolidate.yml

@@ -0,0 +1,34 @@
+name: Consolidate YAML Files
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  consolidate_yaml:
+    runs-on: ubuntu-22.04
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Consolidate YAML files
+        uses: mikefarah/yq@v4
+        with:
+          cmd: yq eval-all '. as $item ireduce ([]; . + [$item])' providers/*.yaml > providers.yaml
+
+      - name: Upload providers.yaml as artifact
+        uses: actions/upload-artifact@v4
+        with:
+          path: providers.yaml
+
+      - name: Commit and push consolidated file
+        if: github.ref == 'refs/heads/main'
+        uses: stefanzweifel/git-auto-commit-action@v5
+        with:
+          commit_message: "Auto-update providers.yaml"
+          file_pattern: providers.yaml

.github/workflows/validate_yaml.yml

@@ -0,0 +1,24 @@
+name: Validate providers YAMLs
+
+on:
+  pull_request:
+    paths:
+      - 'providers/**/*.yaml'
+
+jobs:
+  validate_yaml:
+    runs-on: ubuntu-22.04
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Install Yamale
+        run: |
+          pip install yamale
+
+      - name: Validate YAML against schema
+        run: |
+          for file in providers/*.yaml; do
+            yamale -s schema.yaml "$file" || exit 1
+          done

providers/MassaLabs.yaml

@@ -0,0 +1,10 @@
+title: Massa Labs Official Provider
+
+url: https://massa.network/
+
+desc: The Official DeWeb Provider hosted by Massa Labs. Only allows access to officials Massa websites and some partner websites.
+
+owner: Massa Labs
+
+contact:
+  email: contact@massa.net

schema.yaml

@@ -0,0 +1,9 @@
+title: str(required=True)
+url: str(required=True, regex='^https?://[\\w.-]+(?:\\.[\\w\\.-]+)+[/\\w\\.-]*$')
+desc: str(required=True)
+owner: str(required=True)
+contact: map(required=True)
+contact:
+  email: str(required=False, regex='^[\\w\\.-]+@[\\w\\.-]+\\.[a-zA-Z]{2,}$')
+  discord: str(required=False, regex='^@\\w{2,32}#\\d{4}$')
+  telegram: str(required=False, regex='^@\\w{5,32}$')