default log levels: DEBUG for dev, INFO for stable

set the default log level (internal fallback value) to
- DEBUG if the version number indicates this is a preliminary release
  (alpha, beta, dev)
- INFO if the version number indicates a stable release (last part is
  integer, release candidate or anything else

removes the need to check and adappt this manually at every release or
starts of development cycles

docs/dev/release.md

@@ -30,8 +30,6 @@ These apply to all projects:
 
 - `intelmq/version.py`: Update the version.
 
-Eventually adapt the default log levels if necessary. Should be INFO for stable releases.
-
 ### IntelMQ API
 
 -   `intelmq_api/version.py`: Update the version.

intelmq/__init__.py

@@ -1,4 +1,4 @@
-# SPDX-FileCopyrightText: 2014 Tomás Lima
+# SPDX-FileCopyrightText: 2014 Tomás Lima, 2015-2020 nic.at GmbH, 2024 Institute for Common Good Technology
 #
 # SPDX-License-Identifier: AGPL-3.0-or-later
 
@@ -29,7 +29,12 @@
     VAR_STATE_PATH = os.path.join(ROOT_DIR, "var/lib/bots/")
 
 
-DEFAULT_LOGGING_LEVEL = "INFO"
+if isinstance(__version_info__[-1], str) and __version_info__[-1][0].lower() in ('a', 'b', 'd'):
+    # for alpha, beta and dev instances, set default log level to DEBUG, for others, including RCs, use INFO
+    DEFAULT_LOGGING_LEVEL = "DEBUG"
+else:
+    DEFAULT_LOGGING_LEVEL = "INFO"
+
 HARMONIZATION_CONF_FILE = os.path.join(CONFIG_DIR, "harmonization.conf")
 RUNTIME_CONF_FILE = os.path.join(CONFIG_DIR, "runtime.yaml")
 old_runtime_conf_file = pathlib.Path(RUNTIME_CONF_FILE).with_suffix('.conf')