west: west twister integration

Add twister command to west.

Signed-off-by: Al Semjonovs <asemjonovs@google.com>

scripts/west_commands/twister_cmd.py

@@ -0,0 +1,64 @@
+# Copyright (c) 2023 Google
+#
+# SPDX-License-Identifier: Apache-2.0
+
+import argparse
+import os
+import sys
+
+from west import log
+from west.commands import WestCommand
+
+from zephyr_ext_common import ZEPHYR_SCRIPTS
+
+# Resolve path to twister libs and add imports
+twister_path = ZEPHYR_SCRIPTS
+os.environ["ZEPHYR_BASE"] = str(twister_path.parent)
+
+sys.path.insert(0, str(twister_path))
+sys.path.insert(0, str(twister_path / "pylib" / "twister"))
+
+from twisterlib.environment import add_parse_arguments, parse_arguments
+from twisterlib.twister_main import main
+
+TWISTER_DESCRIPTION = """\
+Convenience wrapper for twister. The below options are shared with the twister
+script and have the same effects as if you ran twister directly. Refer to the
+twister documentation for more information.
+"""
+
+
+class Twister(WestCommand):
+    def __init__(self):
+        super(Twister, self).__init__(
+            "twister",
+            # Keep this in sync with the string in west-commands.yml.
+            "west twister wrapper",
+            TWISTER_DESCRIPTION,
+            accepts_unknown_args=True,
+        )
+
+    def do_add_parser(self, parser_adder):
+        parser = parser_adder.add_parser(
+            self.name,
+            help=self.help,
+            formatter_class=argparse.RawDescriptionHelpFormatter,
+            description=self.description,
+            allow_abbrev=False
+        )
+
+        parser = add_parse_arguments(parser)
+
+        return parser
+
+    def do_run(self, args, remainder):
+        log.dbg(
+            "args: {} remainder: {}".format(args, remainder), level=log.VERBOSE_EXTREME
+        )
+
+        options = self._parse_arguments(args=remainder, options=args)
+        main(options)
+
+    def _parse_arguments(self, args, options):
+        """Helper function for testing purposes"""
+        return parse_arguments(self.parser, args, options)