Only show backup button in navbar if backups are enabled

discord_rss_bot/main.py

@@ -131,6 +131,7 @@ templates.env.filters["encode_url"] = lambda url: urllib.parse.quote(url) if url
 templates.env.filters["entry_is_whitelisted"] = entry_is_whitelisted
 templates.env.filters["entry_is_blacklisted"] = entry_is_blacklisted
 templates.env.filters["discord_markdown"] = markdownify
+templates.env.globals["get_backup_path"] = get_backup_path
 
 
 @app.post("/add_webhook")

discord_rss_bot/templates/nav.html

@@ -19,16 +19,18 @@
                 <li class="nav-item">
                     <a class="nav-link" href="/webhooks">Webhooks</a>
                 </li>
-                <li class="nav-item nav-link d-none d-md-block">|</li>
-                <li class="nav-item">
-                    <form action="/backup" method="post" class="d-inline">
-                        <button type="submit"
-                                class="nav-link btn btn-link text-decoration-none"
-                                onclick="return confirm('Create a manual git backup of the current state?');">
-                            Backup
-                        </button>
-                    </form>
-                </li>
+                {% if get_backup_path() %}
+                    <li class="nav-item nav-link d-none d-md-block">|</li>
+                    <li class="nav-item">
+                        <form action="/backup" method="post" class="d-inline">
+                            <button type="submit"
+                                    class="nav-link btn btn-link text-decoration-none"
+                                    onclick="return confirm('Create a manual git backup of the current state?');">
+                                Backup
+                            </button>
+                        </form>
+                    </li>
+                {% endif %}
             </ul>
             {# Search #}
             <form action="/search" method="get" class="ms-auto w-50 input-group">

tests/test_main.py

@@ -8,6 +8,9 @@ from fastapi.testclient import TestClient
 from discord_rss_bot.main import app
 
 if TYPE_CHECKING:
+    from pathlib import Path
+
+    import pytest
     from httpx import Response
 
 client: TestClient = TestClient(app)
@@ -242,3 +245,47 @@ def test_update_feed_not_found() -> None:
     # Check that it returns a 404 status code
     assert response.status_code == 404, f"Expected 404 for non-existent feed, got: {response.status_code}"
     assert "Feed not found" in response.text
+
+
+def test_navbar_backup_link_hidden_when_not_configured(monkeypatch: pytest.MonkeyPatch) -> None:
+    """Test that the backup link is not shown in the navbar when GIT_BACKUP_PATH is not set."""
+    # Ensure GIT_BACKUP_PATH is not set
+    monkeypatch.delenv("GIT_BACKUP_PATH", raising=False)
+
+    # Get the index page
+    response: Response = client.get(url="/")
+    assert response.status_code == 200, f"Failed to get /: {response.text}"
+
+    # Check that the backup button is not in the response
+    assert "Backup" not in response.text or 'action="/backup"' not in response.text, (
+        "Backup button should not be visible when GIT_BACKUP_PATH is not configured"
+    )
+
+
+def test_navbar_backup_link_visible_when_configured(monkeypatch: pytest.MonkeyPatch, tmp_path: Path) -> None:
+    """Test that the backup link is shown in the navbar when GIT_BACKUP_PATH is set."""
+    # Set GIT_BACKUP_PATH
+    monkeypatch.setenv("GIT_BACKUP_PATH", str(tmp_path))
+
+    # Get the index page
+    response: Response = client.get(url="/")
+    assert response.status_code == 200, f"Failed to get /: {response.text}"
+
+    # Check that the backup button is in the response
+    assert "Backup" in response.text, "Backup button text should be visible when GIT_BACKUP_PATH is configured"
+    assert 'action="/backup"' in response.text, "Backup form should be visible when GIT_BACKUP_PATH is configured"
+
+
+def test_backup_endpoint_returns_error_when_not_configured(monkeypatch: pytest.MonkeyPatch) -> None:
+    """Test that the backup endpoint returns an error when GIT_BACKUP_PATH is not set."""
+    # Ensure GIT_BACKUP_PATH is not set
+    monkeypatch.delenv("GIT_BACKUP_PATH", raising=False)
+
+    # Try to trigger a backup
+    response: Response = client.post(url="/backup")
+
+    # Should redirect to index with error message
+    assert response.status_code == 200, f"Failed to post /backup: {response.text}"
+    assert "Git backup is not configured" in response.text or "GIT_BACKUP_PATH" in response.text, (
+        "Error message about backup not being configured should be shown"
+    )