Added docker setup

.github/workflows/docker-image-main.yml

@@ -0,0 +1,42 @@
+name: Create and publish a Docker image
+
+on:
+  push:
+    branches: [main]
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  build-and-push-image:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@65b78e6e13532edd9afa3aa52ac7964289d1a9c1
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@9ec57ed1fcdbf14dcef7dfbe97b2010124a938b7
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@f2a1d5e99d037542a71f64918e516c093c6f3fc4
+        with:
+          context: .
+          file: docker/Dockerfile
+          push: true
+          tags: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest
+          labels: ${{ steps.meta.outputs.labels }}

.github/workflows/docker-image-release.yml

@@ -0,0 +1,41 @@
+name: Create and publish a Docker image
+
+on:
+  - "release"
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  build-and-push-image:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@65b78e6e13532edd9afa3aa52ac7964289d1a9c1
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@9ec57ed1fcdbf14dcef7dfbe97b2010124a938b7
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@f2a1d5e99d037542a71f64918e516c093c6f3fc4
+        with:
+          context: .
+          file: docker/Dockerfile
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

composer.json

@@ -26,7 +26,7 @@
         "php": ">=8.1",
         "ext-dom": "*",
         "sebastian/cli-parser": "^2.0",
-        "sebastian/version": "^4.0",
+        "sebastian/version": "^3.0",
         "phpunit/php-file-iterator": "^4.0",
         "phpunit/php-timer": "^6.0",
         "ext-mbstring": "*"

docker-compose.yml

@@ -0,0 +1,7 @@
+version: "3"
+services:
+  php:
+    image: php:8.2-alpine
+    volumes:
+      - .:/var/www
+    working_dir: /var/www

docker/Dockerfile

@@ -0,0 +1,8 @@
+FROM php:8.2-alpine
+WORKDIR /var/www
+COPY composer.json /var/www/composer.json
+COPY phpcpd /var/www/phpcpd
+COPY tools/composer /var/www/tools/composer
+COPY src /var/www/src
+RUN /var/www/tools/composer install
+ENTRYPOINT ["/var/www/phpcpd","${@}"]

src/CLI/Arguments.php

@@ -12,17 +12,17 @@
 final class Arguments
 {
     /**
-     * @psalm-var list<string>
+     * @psalm-var list<non-empty-string>
      */
     private array $directories;
 
     /**
-     * @psalm-var list<string>
+     * @psalm-var list<non-empty-string>
      */
     private array $suffixes;
 
     /**
-     * @psalm-var list<string>
+     * @psalm-var list<non-empty-string>
      */
     private array $exclude;
 
@@ -64,23 +64,23 @@ public function __construct(array $directories, array $suffixes, array $exclude,
     }
 
     /**
-     * @psalm-return list<string>
+     * @psalm-return list<non-empty-string>
      */
     public function directories(): array
     {
         return $this->directories;
     }
 
     /**
-     * @psalm-return list<string>
+     * @psalm-return list<non-empty-string>
      */
     public function suffixes(): array
     {
         return $this->suffixes;
     }
 
     /**
-     * @psalm-return list<string>
+     * @psalm-return list<non-empty-string>
      */
     public function exclude(): array
     {