code_size_compare: add logging module and tweak prompt message
Signed-off-by: Yanray Wang <yanray.wang@arm.com>
diff --git a/scripts/mbedtls_dev/logging_util.py b/scripts/mbedtls_dev/logging_util.py
new file mode 100644
index 0000000..962361a
--- /dev/null
+++ b/scripts/mbedtls_dev/logging_util.py
@@ -0,0 +1,55 @@
+"""Auxiliary functions used for logging module.
+"""
+
+# Copyright The Mbed TLS Contributors
+# SPDX-License-Identifier: Apache-2.0
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import logging
+import sys
+
+def configure_logger(
+ logger: logging.Logger,
+ logger_format="[%(levelname)s]: %(message)s"
+ ) -> None:
+ """
+ Configure the logging.Logger instance so that:
+ - Format is set to any logger_format.
+ Default: "[%(levelname)s]: %(message)s"
+ - loglevel >= WARNING are printed to stderr.
+ - loglevel < WARNING are printed to stdout.
+ """
+ class MaxLevelFilter(logging.Filter):
+ # pylint: disable=too-few-public-methods
+ def __init__(self, max_level, name=''):
+ super().__init__(name)
+ self.max_level = max_level
+
+ def filter(self, record: logging.LogRecord) -> bool:
+ return record.levelno <= self.max_level
+
+ log_formatter = logging.Formatter(logger_format)
+
+ # set loglevel >= WARNING to be printed to stderr
+ stderr_hdlr = logging.StreamHandler(sys.stderr)
+ stderr_hdlr.setLevel(logging.WARNING)
+ stderr_hdlr.setFormatter(log_formatter)
+
+ # set loglevel <= INFO to be printed to stdout
+ stdout_hdlr = logging.StreamHandler(sys.stdout)
+ stdout_hdlr.addFilter(MaxLevelFilter(logging.INFO))
+ stdout_hdlr.setFormatter(log_formatter)
+
+ logger.addHandler(stderr_hdlr)
+ logger.addHandler(stdout_hdlr)