Create progress file for pip installs (#24297)

* Create progress file for pip installs

* fix dedlock

* unflacky test

* Address comments

* Lint

* Types

tests/test_requirements.py

@@ -1,10 +1,11 @@
 """Test requirements module."""
 import os
+from pathlib import Path
 from unittest.mock import patch, call
 
 from homeassistant import setup
 from homeassistant.requirements import (
-    CONSTRAINT_FILE, async_process_requirements)
+    CONSTRAINT_FILE, async_process_requirements, PROGRESS_FILE, _install)
 
 from tests.common import (
     get_test_home_assistant, MockModule, mock_coro, mock_integration)
@@ -143,3 +144,22 @@ async def test_install_on_docker(hass):
             constraints=os.path.join('ha_package_path', CONSTRAINT_FILE),
             no_cache_dir=True,
         )
+
+
+async def test_progress_lock(hass):
+    """Test an install attempt on an existing package."""
+    progress_path = Path(hass.config.path(PROGRESS_FILE))
+    kwargs = {'hello': 'world'}
+
+    def assert_env(req, **passed_kwargs):
+        """Assert the env."""
+        assert progress_path.exists()
+        assert req == 'hello'
+        assert passed_kwargs == kwargs
+        return True
+
+    with patch('homeassistant.util.package.install_package',
+               side_effect=assert_env):
+        _install(hass, 'hello', kwargs)
+
+    assert not progress_path.exists()