Add a debug-logging module.

Useful for troubleshooting issues that arise on production but do not
show up in local development.

1 files changed, 22 insertions, 0 deletions

diff --git a/gn2/debug.py b/gn2/debug.py
new file mode 100644
index 00000000..6b7173b4
--- /dev/null
+++ b/gn2/debug.py
@@ -0,0 +1,22 @@
+"""Debug utilities"""
+import logging
+from flask import current_app
+
+__this_module_name__ = __name__
+
+
+# pylint: disable=invalid-name
+def getLogger(name: str):
+    """Return a logger"""
+    return (
+        logging.getLogger(name)
+        if not bool(current_app)
+        else current_app.logger)
+
+def __pk__(*args):
+    """Format log entry"""
+    value = args[-1]
+    title_vals = " => ".join(args[0:-1])
+    logger = getLogger(__this_module_name__)
+    logger.debug("%s: %s", title_vals, value)
+    return value