Add code coverage using gist

Resolve #5

Author: pionl

.github/workflows/check.yml

@@ -61,7 +61,7 @@ jobs:
       - name: "Install PHP"
         uses: "shivammathur/setup-php@v2"
         with:
-          coverage: "none"
+          coverage: "xdebug"
           php-version: "${{ matrix.php-version }}"
 
       - name: "Install lowest dependencies"
@@ -73,7 +73,25 @@ jobs:
         run: "composer update --no-interaction --no-progress"
 
       - name: "Tests"
-        run: "composer test"
+        id: tests
+        continue-on-error: false
+        run: |
+          vendor/bin/phpunit --coverage-text --coverage-text=coverage.txt
+          echo "::set-output name=coverage::$(cat coverage.txt | grep -Po '^\s*Lines:\s*\d+.\d+\%' | grep -Po '\d+.\d+')"
+
+      # TODO on pull request add comment?
+
+      - name: "Create badge"
+        if: ${{ github.ref == 'refs/heads/main' && matrix.dependencies == 'highest' && steps.tests.outputs.coverage != '' }}
+        uses: schneegans/dynamic-badges-action@v1.4.0
+        with:
+          auth: ${{ secrets.GIST_SECRET }}
+          gistID: 11b884c06da0bf9116ae763d23438ecb
+          filename: coverage.json
+          label: Coverage
+          # TODO colors?
+          message: ${{ steps.tests.outputs.coverage }}
+          color: success
 
   static-analysis:
     name: "PHPStan"

README.md

@@ -2,6 +2,7 @@
 
 ![img](https://img.shields.io/badge/PHPStan-8-blue)
 ![php](https://img.shields.io/badge/PHP-8.1-B0B3D6)
+![coverage](https://img.shields.io/endpoint?url=https://gist.githubusercontent.com/pionl/11b884c06da0bf9116ae763d23438ecb/raw/coverage.json)
 
 Get typed (strict mode) values from an Array / XML with basic validation.
 

docs/content/en/index.md

@@ -6,6 +6,7 @@ position: 1
 
 <img src="https://img.shields.io/badge/PHPStan-8-blue" class="inline-flex" style="margin: 0;" /> 
 <img src="https://img.shields.io/badge/PHP-8.1-B0B3D6"  class="inline-flex" style="margin: 0;" />
+<img src="https://img.shields.io/endpoint?url=https://gist.githubusercontent.com/pionl/11b884c06da0bf9116ae763d23438ecb/raw/coverage.json"  class="inline-flex" style="margin: 0;" />
 
 ## Main features