feat: wpcs workflow and code quality improved

.github/workflows/continuous-integration.yml

@@ -30,14 +30,14 @@ jobs:
         with:
           find: "Version: *[0-9.]*"
           replace: "Version:           ${{ steps.tag_version.outputs.new_version }}"
-          include: "openedx-woocommerce-plugin.php"
+          include: "class-openedx-woocommerce-plugin.php"
 
       - name: Update php file version - define statement
         uses: jacobtomlinson/gha-find-replace@v3
         with:
           find: "(define\\( 'OPENEDX_WOOCOMMERCE_PLUGIN_VERSION', ')([^']*)(.*);"
           replace: "define( 'OPENEDX_WOOCOMMERCE_PLUGIN_VERSION', '${{ steps.tag_version.outputs.new_version }}' );"
-          include: "openedx-woocommerce-plugin.php"
+          include: "class-openedx-woocommerce-plugin.php"
 
       - name: Update README version
         uses: jacobtomlinson/gha-find-replace@v3
@@ -60,7 +60,7 @@ jobs:
         with:
           branch: ${{ github.ref }}
           commit_message: "docs(bumpversion): ${{ steps.tag_version.outputs.previous_tag }} → ${{ steps.tag_version.outputs.new_tag }}"
-          file_pattern: README.txt CHANGELOG.md openedx-woocommerce-plugin.php
+          file_pattern: README.txt CHANGELOG.md class-openedx-woocommerce-plugin.php
 
   release:
     needs: bumpversion

.github/workflows/wordpress-cs-check.yml

@@ -0,0 +1,33 @@
+name: WordPress Coding Standards check
+on:
+  pull_request
+
+jobs:
+  phpcs:
+    name: PHPCS check
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Setup PHP
+        uses: "shivammathur/setup-php@v2"
+        with:
+          php-version: 'latest'
+          ini-values: memory_limit=1G'
+          coverage: none
+          tools: cs2pr
+
+      - name: Install Composer dependencies
+        uses: "ramsey/composer-install@v2"
+        with:
+          # Bust the cache at least once a month - output format: YYYY-MM.
+          custom-cache-suffix: $(date -u "+%Y-%m")
+
+      - name: Run PHPCS checks
+        id: phpcs
+        run: vendor/bin/phpcs --report-full --report-checkstyle=./phpcs-report.xml --standard=phpcs.xml
+
+      - name: Show PHPCS results in PR
+        if: ${{ always() && steps.phpcs.outcome == 'failure' }}
+        run: cs2pr ./phpcs-report.xml