validate-workflow-schema.yml

name: YAML Lint Check

on:
  pull_request:
    branches:
      - master
    paths:
      - '.github/workflows/**'

jobs:
  yaml-lint:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout Code
        uses: actions/checkout@v2

      - name: Install Dependencies
        run: npm install yaml-lint ajv axios js-yaml

      - name: Lint YAML Files
        run: |
          set -e
          find .github/workflows -type f -name "*.yml" -print0 | xargs -0 ./node_modules/.bin/yamllint -q

      - name: List YAML files to validate
        run: |
          set -e
          files=$(find .github/workflows -name '*.yml')
          echo "Validating the following files:"
          echo "$files"

      - name: Run YAML validation
        uses: actions/github-script@v6
        with:
          script: |
            const Ajv = require("ajv");
            const axios = require("axios");
            const yaml = require("js-yaml");
            const fs = require("fs").promises;

            async function validateWorkflows() {
              const schema = await axios.get(
                "https://raw.githubusercontent.com/SchemaStore/schemastore/master/src/schemas/json/github-workflow.json"
              );

              const files = await fs.readdir(".github/workflows");
              const ymlFiles = files.filter((file) => file.endsWith(".yml"));

              for (const file of ymlFiles) {
                try {
                  const content = await fs.readFile(`.github/workflows/${file}`, "utf8");
                  const target = yaml.load(content);

                  const ajv = new Ajv({ strict: false, allErrors: true });
                  const validator = ajv.compile(schema.data);
                  const valid = validator(target);
                  if (!valid) {
                    console.error(
                      `Validation failed for file '${file}' with the following errors:`
                    );
                    console.error(validator.errors);
                    process.exitCode = 1;
                  } else {
                    console.log(`Workflow in file '${file}' is valid`);
                  }
                } catch (error) {
                  console.error(`Error validating file '${file}': ${error.message}`);
                  process.exitCode = 1;
                }
              }
            }
            validateWorkflows();