prepare CI for Intent lists YAML data

Author: dginev

.github/workflows/list-yaml-checks.yml

@@ -0,0 +1,27 @@
+name: Validate-YAML-lists
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  validate-yaml-core-concept-list:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Validate YAML intent lists
+        run: yamllint -c _data/_config_yamllint.yml _data/core.yml
+  validate-yaml-open-concept-list:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Validate YAML intent lists
+        run: yamllint -c _data/_config_yamllint.yml _data/open.yml
+  validate-yaml-properties-list:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Validate YAML intent lists
+        run: yamllint -c _data/_config_yamllint.yml _data/core-properties.yml

_data/_config_yamllint.yml

@@ -0,0 +1,31 @@
+---
+
+extends: default
+
+rules:
+  braces:
+    level: warning
+    max-spaces-inside: 1
+  brackets:
+    level: warning
+    max-spaces-inside: 1
+  colons:
+    level: warning
+  commas:
+    level: warning
+  comments: disable
+  comments-indentation: disable
+  document-start: disable
+  empty-lines:
+    level: warning
+  hyphens:
+    level: warning
+  indentation:
+    level: warning
+    indent-sequences: consistent
+  line-length:
+    max: 240
+    level: warning
+    allow-non-breakable-inline-mappings: true
+  truthy: disable
+  trailing-spaces: disable