[perf-web] Improve debugging configuration

[Owen Taylor <otaylor src gnome org>]

commit 5605f1c389bdb3ea7766ee6b5db27bb05de23e53
Author: Owen W. Taylor <otaylor fishsoup net>
Date:   Mon Sep 22 15:25:17 2014 -0400

    Improve debugging configuration
    
    Move DEBUG to local_settings.py
    Changing logging configuration so backtraces processing requests are logged
    to the console.
    Add LOG_SQL to local_settings.py to log SQL statements to the console.

 perf/local_settings.py.sample |    6 ++++++
 perf/settings.py              |   37 +++++++++++++++++++++----------------
 2 files changed, 27 insertions(+), 16 deletions(-)
---
diff --git a/perf/local_settings.py.sample b/perf/local_settings.py.sample
index 17ff58e..6fe1063 100644
--- a/perf/local_settings.py.sample
+++ b/perf/local_settings.py.sample
@@ -15,3 +15,9 @@ DATABASES = {
         'PORT': '',                      # Set to empty string for default. Not used with sqlite3.
     }
 }
+
+# This must be set to False in production
+DEBUG = False
+
+# If True, all SQL statements will be logged to the console
+LOG_SQL = False
diff --git a/perf/settings.py b/perf/settings.py
index 1aeb93f..b13641a 100644
--- a/perf/settings.py
+++ b/perf/settings.py
@@ -8,7 +8,6 @@ import metrics.config
 
 MODULE_ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 
-DEBUG = True
 TEMPLATE_DEBUG = DEBUG
 
 ADMINS = (
@@ -19,7 +18,9 @@ MANAGERS = ADMINS
 
 # Hosts/domain names that are valid for this site; required if DEBUG is False
 # See https://docs.djangoproject.com/en/1.4/ref/settings/#allowed-hosts
-ALLOWED_HOSTS = []
+# 10.0.2.101 is used in the HWTestSimulator configuration to forward
+# to a test instance of perf.gnome.org.
+ALLOWED_HOSTS = ['perf.gnome.org', '10.0.2.101', '127.0.0.1']
 
 # Local time zone for this installation. Choices can be found here:
 # http://en.wikipedia.org/wiki/List_of_tz_zones_by_name
@@ -121,32 +122,35 @@ INSTALLED_APPS = (
     'metrics'
 )
 
-# A sample logging configuration. The only tangible logging
-# performed by this configuration is to send an email to
-# the site admins on every HTTP 500 error when DEBUG=False.
 # See http://docs.djangoproject.com/en/dev/topics/logging for
 # more details on how to customize your logging configuration.
 LOGGING = {
     'version': 1,
-    'disable_existing_loggers': False,
-    'filters': {
-        'require_debug_false': {
-            '()': 'django.utils.log.RequireDebugFalse'
-        }
+    'disable_existing_loggers': True,
+    'formatters': {
+        'simple': {
+            'format': '%(levelname)s %(asctime)s %(message)s'
+        },
     },
     'handlers': {
-        'mail_admins': {
-            'level': 'ERROR',
-            'filters': ['require_debug_false'],
-            'class': 'django.utils.log.AdminEmailHandler'
-        }
+        'console':{
+            'level': 'DEBUG',
+            'class': 'logging.StreamHandler',
+            'formatter': 'simple'
+        },
     },
+    # Log backtraces when processing requests to the console
     'loggers': {
         'django.request': {
-            'handlers': ['mail_admins'],
+            'handlers': ['console'],
             'level': 'ERROR',
             'propagate': True,
         },
+        'django.db.backends': {
+            'handlers': ['console'],
+            'level': 'DEBUG' if LOG_SQL else 'ERROR',
+            'propagate': True,
+        },
     }
 }
 
@@ -161,3 +165,4 @@ except Exception:
     traceback.print_exc()
     raise
 
+LOG_ROOT = os.path.join(MODULE_ROOT, 'logs')