Implement pyre coverage (1/3) -- skeleton

Reviewed By: kbansal

Differential Revision: D30436432

fbshipit-source-id: 0154da6da330697967300b59ff293f23f0eeafd9

Author: grievejia

client/commands/v2/__init__.py

@@ -5,6 +5,7 @@
 
 from . import backend_arguments  # noqa F401
 from . import check  # noqa F401
+from . import coverage  # noqa F401
 from . import incremental  # noqa F401
 from . import infer  # noqa F401
 from . import initialize  # noqa F401

client/commands/v2/coverage.py

@@ -0,0 +1,30 @@
+# Copyright (c) Facebook, Inc. and its affiliates.
+#
+# This source code is licensed under the MIT license found in the
+# LICENSE file in the root directory of this source tree.
+
+import logging
+
+from ... import commands, configuration as configuration_module
+from . import remote_logging
+
+LOG: logging.Logger = logging.getLogger(__name__)
+
+
+def run_coverage(
+    configuration: configuration_module.Configuration, working_directory: str
+) -> commands.ExitCode:
+    LOG.warning("Coming soon...")
+    return commands.ExitCode.SUCCESS
+
+
+@remote_logging.log_usage(command_name="coverage")
+def run(
+    configuration: configuration_module.Configuration, working_directory: str
+) -> commands.ExitCode:
+    try:
+        return run_coverage(configuration, working_directory)
+    except Exception as error:
+        raise commands.ClientException(
+            f"Exception occured during pyre coverage: {error}"
+        ) from error

client/pyre.py

@@ -1439,16 +1439,19 @@ def coverage(
     """
     command_argument: command_arguments.CommandArguments = context.obj["arguments"]
     configuration = _create_configuration_with_retry(command_argument, Path("."))
-    return run_pyre_command(
-        commands.Coverage(
-            command_argument,
-            original_directory=os.getcwd(),
-            configuration=configuration,
-            working_directory=working_directory,
-        ),
-        configuration,
-        command_argument.noninteractive,
-    )
+    if configuration.use_command_v2:
+        return v2.coverage.run(configuration, working_directory)
+    else:
+        return run_pyre_command(
+            commands.Coverage(
+                command_argument,
+                original_directory=os.getcwd(),
+                configuration=configuration,
+                working_directory=working_directory,
+            ),
+            configuration,
+            command_argument.noninteractive,
+        )
 
 
 @pyre.command()