Add Plugin Check action

.github/workflows/plugin-check.yml

@@ -0,0 +1,55 @@
+name: WP Plugin Check
+on: # Rebuild any PRs and main branch changes
+  pull_request:
+  push:
+    branches:
+    - main
+    - dev
+    - 'releases/*'
+  # Allows you to run this workflow manually from the Actions tab.
+  workflow_dispatch:
+
+jobs:
+  # Runs the WP Plugin Check.
+  #
+  # Checks from the Plugin Review Team.
+  #
+  # For the detailed list of checks:
+  # - https://wordpress.org/plugins/plugin-check/
+  #
+  # Performs the following steps:
+  # - Checks out the repository.
+  # - Sets up PHP.
+  # - Installs Composer dependencies.
+  # - Runs the Plugin Check.
+  plugin-check:
+    name: Plugin Check
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+
+    - name: Set up PHP
+      uses: shivammathur/setup-php@2.30.0
+      with:
+        php-version: '7.4'
+        coverage: none
+      env:
+        fail-fast: false
+
+    - name: Validate composer.json and composer.lock
+      run: composer validate --strict
+
+    - name: Install Composer dependencies
+      uses: ramsey/composer-install@v3
+      with:
+        composer-options: "--no-dev"
+
+    - name: Copy the plugin files to the plugin check folder, excluding the files on .distignore.
+      run: rsync -rc --exclude-from="$GITHUB_WORKSPACE/.distignore" "$GITHUB_WORKSPACE/" gp-format-csv/ --delete --delete-excluded
+
+    - name: Run plugin check
+      uses: swissspidy/wp-plugin-check-action@main
+      with:
+        build-dir: 'gp-format-csv'

README.md

@@ -13,6 +13,7 @@ Adds the CSV format to GlotPress to export/import translations and originals.
 
 [![Coding Standards](https://github.com/pedro-mendonca/GP-Format-CSV/actions/workflows/coding-standards.yml/badge.svg)](https://github.com/pedro-mendonca/GP-Format-CSV/actions/workflows/coding-standards.yml)
 [![Static Analysis](https://github.com/pedro-mendonca/GP-Format-CSV/actions/workflows/static-analysis.yml/badge.svg)](https://github.com/pedro-mendonca/GP-Format-CSV/actions/workflows/static-analysis.yml)
+[![WP Plugin Check](https://github.com/pedro-mendonca/GP-Format-CSV/actions/workflows/plugin-check.yml/badge.svg)](https://github.com/pedro-mendonca/GP-Format-CSV/actions/workflows/plugin-check.yml)
 [![Codacy Badge](https://app.codacy.com/project/badge/Grade/48804e8b44f445afbed607c43ec3e9dd)](https://www.codacy.com/gh/pedro-mendonca/GP-Format-CSV/dashboard?utm_source=github.com&utm_medium=referral&utm_content=pedro-mendonca/GP-Format-CSV&utm_campaign=Badge_Grade)
 
 ## Description