kci: rework using kernelci.cli and Click

Rework the kci entry point to use the new kernelci.cli module and
Click.  Only implement `kci whoami` for now which can be used to check
that TOML settings and secrets are loaded correctly.

Also drop "kci config validate" from the Makefile tests for now as
this needs to be reimplemented.

Signed-off-by: Guillaume Tucker <guillaume.tucker@collabora.com>

Author: gctucker

Makefile

@@ -47,7 +47,6 @@ unit-tests:
 	python3 -m pytest tests
 
 validate-yaml:
-	./kci config validate
 	./kci_build validate
 	./kci_test validate
 	./kci_data validate

kci

@@ -2,28 +2,37 @@
 #
 # SPDX-License-Identifier: LGPL-2.1-or-later
 #
-# Copyright (C) 2022 Collabora Limited
+# Copyright (C) 2022, 2023 Collabora Limited
 # Author: Guillaume Tucker <guillaume.tucker@collabora.com>
 
 """KernelCI Command Line Tool
 
-This executable script is the entry point for all the new KernelCI command line
-tools which support the new API & Pipeline design.  See the documentation for
-more details: https://kernelci.org/docs/api/.
+This executable module is the entry point for the kci command line tool.  It
+provides a way to manually interact with the KernelCI API and its related
+features.  See the online documentation for more details:
+https://kernelci.org/docs/api/.
 """
 
-import argparse
-import sys
+import json
 
-import kernelci.legacy.cli
+import click
+
+from kernelci.cli import Args, kci
+import kernelci.api
+import kernelci.config
+
+
+@kci.command(secrets=True)
+@Args.config
+@Args.api
+def whoami(config, api, secrets):
+    """Use whoami to get current user info with API authentication"""
+    configs = kernelci.config.load(config)
+    api_config = configs['api_configs'][api]
+    api = kernelci.api.get_api(api_config, secrets.api.token)
+    data = api.whoami()
+    click.echo(json.dumps(data, indent=2))
 
 
 if __name__ == '__main__':
-    parser = argparse.ArgumentParser("KernelCI Command Line Tools")
-    parser.add_argument(
-        'command',
-        choices=kernelci.legacy.cli.list_command_names(),
-        help="Command to run"
-    )
-    args = parser.parse_args(sys.argv[1:2])
-    kernelci.legacy.cli.call(args.command, sys.argv[2:])
+    kci()  # pylint: disable=no-value-for-parameter