Setup module for logging

During development, we need logging sometimes to help with troubleshooting
problems. This commit provides a module to help set up the logging in a
separate module from the app module.

1 files changed, 21 insertions, 0 deletions

diff --git a/gn3/loggers.py b/gn3/loggers.py
new file mode 100644
index 0000000..a74ae7e
--- /dev/null
+++ b/gn3/loggers.py
@@ -0,0 +1,21 @@
+"""Setup loggers"""
+import sys
+import logging
+from logging import StreamHandler
+
+# ========== Setup formatters ==========
+# ========== END: Setup formatters ==========
+
+def loglevel(app):
+    """'Compute' the LOGLEVEL from the application."""
+    return logging.DEBUG if app.config.get("DEBUG", False) else logging.WARNING
+
+def setup_app_handlers(app):
+    """Setup the logging handlers for the application `app`."""
+    # ========== Setup handlers ==========
+    stderr_handler = StreamHandler(stream=sys.stderr)
+    stderr_handler.setLevel(loglevel(app))
+    app.logger.addHandler(stderr_handler)
+    # ========== END: Setup handlers ==========
+    root_logger = logging.getLogger()
+    root_logger.addHandler(stderr_handler)