From 233d4b42681187f0a1a75e481a738ac528269d83 Mon Sep 17 00:00:00 2001
From: Goffi <goffi@goffi.org>
Date: Mon, 5 May 2014 18:58:34 +0200
Subject: [PATCH] =?UTF-8?q?core=20(log):=20added=20magic=20%(profile)s=20k?=
 =?UTF-8?q?ey=20to=20log=5Ffmt:=20=20=20=20=20if=20%(profile)s=20is=20used?=
 =?UTF-8?q?=20in=20log=5Ffmt,=20S=C3=A0T=20try=20to=20find=20profile=20val?=
 =?UTF-8?q?ue=20using=20introspection.=20This=20is=20for=20debugging=20pur?=
 =?UTF-8?q?pose=20only,=20*DO=20NOT*=20use=20in=20production.=20This=20key?=
 =?UTF-8?q?=20don't=20work=20(yet=20=3F)=20with=20standard=20backend,=20an?=
 =?UTF-8?q?d=20will=20not=20work=20in=20every=20frontend.?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/core/log.py | 37 ++++++++++++++++++++++++++++++++++++-
 1 file changed, 36 insertions(+), 1 deletion(-)

diff --git a/src/core/log.py b/src/core/log.py
index a25e0686..f1ff98b2 100644
--- a/src/core/log.py
+++ b/src/core/log.py
@@ -94,7 +94,18 @@ class Logger(object):
         except AttributeError:
             if self.filter_name is not None:
                 raise ValueError("Bad filter: filters must have a .filter method")
-        return self.fmt % record if self.fmt is not None else message
+        try:
+            return self.fmt % record
+        except TypeError:
+            return message
+        except KeyError as e:
+            if e.args[0] == 'profile':
+                # XXX: %(profile)s use some magic with introspection, for debugging purpose only *DO NOT* use in production
+                record['profile'] = _getProfile()
+                return self.fmt % record
+            else:
+                raise e
+
 
     def debug(self, msg):
         self.log(C.LOG_LVL_DEBUG, msg)
@@ -159,6 +170,30 @@ class FilterName(object):
         return self.filter(log_record) == 1
 
 
+def _getProfile():
+    """Try to find profile value using introspection"""
+    import inspect
+    stack = inspect.stack()
+    current_path = stack[0][1]
+    for frame_data in stack[:-1]:
+        if frame_data[1] != current_path:
+            break
+
+    frame = frame_data[0]
+    args = inspect.getargvalues(frame)
+    try:
+        profile = args.locals.get('profile') or args.locals['profile_key']
+    except (TypeError, KeyError):
+        try:
+            try:
+                profile = args.locals['self'].profile
+            except AttributeError:
+                profile = args.locals['self'].parent.profile
+        except Exception:
+            # we can't find profile, we return an empty value
+            profile = ''
+    return profile
+
 def _ansiColors(level, message):
     """Colorise message depending on level for terminals