feat: add few first actions and workflows

php-composer/action.yml

@@ -0,0 +1,59 @@
+---
+# yaml-language-server: $schema=https://json.schemastore.org/github-action.json
+name: Run Composer Install on defined PHP version
+description: "Runs Composer install on the repository"
+author: "Ismo Vuorinen"
+branding:
+  icon: package
+  color: gray-dark
+
+inputs:
+  php:
+    description: 'PHP Version to use'
+    required: true
+    default: "8.3"
+  args:
+    description: 'Arguments to pass to Composer'
+    required: false
+    default: '--no-progress --prefer-dist --optimize-autoloader'
+
+outputs:
+  lock:
+    description: "composer.lock or composer.json file hash"
+    value: ${{ steps.hash.outputs.lock }}
+
+runs:
+  using: composite
+
+  steps:
+    - name: Get composer.lock or composer.json hash for caching
+      id: hash
+      shell: bash
+      run: |
+        if [ -f composer.lock ]; then
+          echo "lock=${{ hashFiles('**/composer.lock') }}" >> $GITHUB_OUTPUT
+        else
+          echo "lock=${{ hashFiles('**/composer.json') }}" >> $GITHUB_OUTPUT
+        fi
+
+    - name: Cache Composer packages
+      id: composer-cache
+      uses: actions/cache@v4
+      with:
+        path: vendor
+        key: ${{ runner.os }}-php-${{ inputs.php }}-${{ runs.hash.outputs.lock }}
+        restore-keys: |
+          ${{ runner.os }}-php-${{ inputs.php }}-${{ runs.hash.outputs.lock }}
+          ${{ runner.os }}-php-${{ inputs.php }}-
+          ${{ runner.os }}-php-
+
+    - name: PHP ${{ inputs.php }}
+      uses: shivammathur/setup-php@v2
+      with:
+        php-version: ${{ inputs.php }}
+        tools: composer
+        extensions: ${{ inputs.extensions }}
+
+    - name: Composer Install
+      shell: bash
+      run: composer install ${{ inputs.args }}