chore: improve server checkout

Signed-off-by: Sebastian Krupinski <krupinski01@gmail.com>

action.yml

@@ -51,6 +51,22 @@ inputs:
     description: 'Custom script to run after installation'
     required: false
     default: ''
+  server-repository:
+    description: 'Repository to checkout for the server source'
+    required: false
+    default: 'Nodarx/server'
+  server-ref:
+    description: 'Branch, tag, or SHA to checkout for the server repository'
+    required: false
+    default: 'main'
+  github-server-url:
+    description: 'Git server base URL for checkout (e.g. https://git.ktrix.dev)'
+    required: false
+    default: 'https://git.ktrix.dev'
+  checkout-token:
+    description: 'Optional token for private/external repository checkout'
+    required: false
+    default: ''
 
 outputs:
   install-status:
@@ -93,22 +109,28 @@ runs:
         echo "Install dependencies: ${{ inputs.install-dependencies }}"
         echo "::endgroup::"
 
-    - name: Clone server repository
-      shell: bash
-      run: |
-        echo "::group::Cloning Nodarx server repository"
-        
-        if [ -d "${{ inputs.server-path }}" ]; then
-          echo "Directory exists, pulling latest changes..."
-          cd "${{ inputs.server-path }}"
-          git pull --recurse-submodules || echo "::warning::Pull failed, continuing with existing code"
-        else
-          echo "Cloning repository..."
-          git clone --recurse-submodules --depth 1 https://git.ktrix.dev/Nodarx/server "${{ inputs.server-path }}"
-        fi
-        
-        echo "Repository cloned/updated successfully"
-        echo "::endgroup::"
+    - name: Checkout server repository (public/no token)
+      if: inputs.checkout-token == ''
+      uses: actions/checkout@v4
+      with:
+        repository: ${{ inputs.server-repository }}
+        ref: ${{ inputs.server-ref }}
+        path: ${{ inputs.server-path }}
+        fetch-depth: 1
+        submodules: recursive
+        github-server-url: ${{ inputs.github-server-url }}
+
+    - name: Checkout server repository (with token)
+      if: inputs.checkout-token != ''
+      uses: actions/checkout@v4
+      with:
+        repository: ${{ inputs.server-repository }}
+        ref: ${{ inputs.server-ref }}
+        path: ${{ inputs.server-path }}
+        fetch-depth: 1
+        submodules: recursive
+        github-server-url: ${{ inputs.github-server-url }}
+        token: ${{ inputs.checkout-token }}
 
     - name: Setup Node
       if: inputs.install-node == 'true'