use mmengine.Config instead of mmcv.Config (#155)

* use mmengine.Config instead of mmcv.Config

* install mmengine in CI

* fix mmengine install issue

mim/commands/download.py

@@ -86,7 +86,11 @@ def download(package: str,
             highlighted_error(f'Expected configs: {valid_configs}, but got '
                               f'{invalid_configs}'))
 
-    from mmcv import Config
+    try:
+        from mmengine import Config
+    except ImportError:
+        msg = 'Please install mmengine to use the download command.'
+        raise ImportError(highlighted_error(msg))
 
     for config in configs:
         click.echo(f'processing {config}...')

mim/commands/gridsearch.py

@@ -270,9 +270,9 @@ def gridsearch(
             raise ValueError(highlighted_error(msg))
 
     try:
-        from mmcv import Config
+        from mmengine import Config
     except ImportError:
-        msg = 'Please install mmcv to use the gridsearch command.'
+        msg = 'Please install mmengine to use the gridsearch command.'
         raise ImportError(highlighted_error(msg))
 
     cfg = Config.fromfile(config)

tests/test_download.py

@@ -11,6 +11,8 @@ def setup_module():
     runner = CliRunner()
     result = runner.invoke(uninstall, ['mmcv-full', '--yes'])
     assert result.exit_code == 0
+    result = runner.invoke(uninstall, ['mmengine', '--yes'])
+    assert result.exit_code == 0
     result = runner.invoke(uninstall, ['mmcls', '--yes'])
     assert result.exit_code == 0
 
@@ -19,6 +21,8 @@ def test_download(tmp_path):
     runner = CliRunner()
     result = runner.invoke(install, ['mmcv-full', '--yes'])
     assert result.exit_code == 0
+    result = runner.invoke(install, ['mmengine', '--yes'])
+    assert result.exit_code == 0
 
     with pytest.raises(ValueError):
         # version is not allowed
@@ -54,5 +58,7 @@ def teardown_module():
     runner = CliRunner()
     result = runner.invoke(uninstall, ['mmcv-full', '--yes'])
     assert result.exit_code == 0
+    result = runner.invoke(uninstall, ['mmengine', '--yes'])
+    assert result.exit_code == 0
     result = runner.invoke(uninstall, ['mmcls', '--yes'])
     assert result.exit_code == 0

tests/test_gridsearch.py

@@ -13,6 +13,8 @@ def setup_module():
     runner = CliRunner()
     result = runner.invoke(uninstall, ['mmcv-full', '--yes'])
     assert result.exit_code == 0
+    result = runner.invoke(uninstall, ['mmengine', '--yes'])
+    assert result.exit_code == 0
     result = runner.invoke(uninstall, ['mmcls', '--yes'])
     assert result.exit_code == 0
 
@@ -28,6 +30,8 @@ def test_gridsearch(gpus, tmp_path):
     runner = CliRunner()
     result = runner.invoke(install, ['mmcls', '--yes'])
     assert result.exit_code == 0
+    result = runner.invoke(install, ['mmengine', '--yes'])
+    assert result.exit_code == 0
     # Since `mminstall.txt` is not included in the distribution of
     # mmcls<=0.23.1, we need to install mmcv-full manually.
     result = runner.invoke(install, ['mmcv-full', '--yes'])
@@ -68,5 +72,7 @@ def teardown_module():
     runner = CliRunner()
     result = runner.invoke(uninstall, ['mmcv-full', '--yes'])
     assert result.exit_code == 0
+    result = runner.invoke(uninstall, ['mmengine', '--yes'])
+    assert result.exit_code == 0
     result = runner.invoke(uninstall, ['mmcls', '--yes'])
     assert result.exit_code == 0