1 files changed, 36 insertions, 0 deletions
diff --git a/setuptools/logging.py b/setuptools/logging.py
new file mode 100644
index 0000000..15b5761
--- /dev/null
+++ b/setuptools/logging.py
@@ -0,0 +1,36 @@
+import sys
+import logging
+import distutils.log
+from . import monkey
+
+
+def _not_warning(record):
+    return record.levelno < logging.WARNING
+
+
+def configure():
+    """
+    Configure logging to emit warning and above to stderr
+    and everything else to stdout. This behavior is provided
+    for compatibilty with distutils.log but may change in
+    the future.
+    """
+    err_handler = logging.StreamHandler()
+    err_handler.setLevel(logging.WARNING)
+    out_handler = logging.StreamHandler(sys.stdout)
+    out_handler.addFilter(_not_warning)
+    handlers = err_handler, out_handler
+    logging.basicConfig(
+        format="{message}", style='{', handlers=handlers, level=logging.DEBUG)
+    monkey.patch_func(set_threshold, distutils.log, 'set_threshold')
+
+    # For some reason `distutils.log` module is getting cached in `distutils.dist`
+    # and then loaded again when patched,
+    # implying: id(distutils.log) != id(distutils.dist.log).
+    # Make sure the same module object is used everywhere:
+    distutils.dist.log = distutils.log
+
+
+def set_threshold(level):
+    logging.root.setLevel(level*10)
+    return set_threshold.unpatched(level)