Replace oslo_log dependency with standard logging

When I first started grafyaml, I wanted to better understand how
existing OpenStack libraries worked. So, with that in mind, I choose
oslo_log as the logging class for this program.  However, now that we
have imported it under openstack-infra, we don't really want to depend
on OpenStack libraries, incase there is a breakage.  The main reason
for this, if OpenStack libraries break, we still want the
infrastructure to work so we can fix the problem.

Change-Id: Iee9b1d9d9abb4da4d285531b64a7e2505240be12
Signed-off-by: Paul Belanger <pabelanger@redhat.com>

doc/source/grafana-dashboard.rst

@@ -26,10 +26,9 @@ OPTIONS
 --config-file PATH  Path to a config file to use. Multiple config files can be
                     specified, with values in later files taking precedence. The
                     default files used are: None.
--d, --debug         Print debugging output(set logging level to DEBUG
+--debug             Print debugging output(set logging level to DEBUG instead
-                    instead of default WARNING level).
+                    of default INFO level).
--v, --verbose       Print more verbose output (set logging level to INFO
+--nodebug           The inverse of --debug.
-                    instead of default WARNING level).
 --version           Show program's version number and exit.
 
 COMMANDS

etc/grafyaml.conf

@@ -1,91 +1,5 @@
 [DEFAULT]
 
-#
-# From oslo.log
-#
-
-# Print debugging output (set logging level to DEBUG instead of
-# default WARNING level). (boolean value)
-#debug = false
-
-# Print more verbose output (set logging level to INFO instead of
-# default WARNING level). (boolean value)
-#verbose = false
-
-# The name of a logging configuration file. This file is appended to
-# any existing logging configuration files. For details about logging
-# configuration files, see the Python logging module documentation.
-# (string value)
-# Deprecated group/name - [DEFAULT]/log_config
-#log_config_append = <None>
-
-# DEPRECATED. A logging.Formatter log message format string which may
-# use any of the available logging.LogRecord attributes. This option
-# is deprecated.  Please use logging_context_format_string and
-# logging_default_format_string instead. (string value)
-#log_format = <None>
-
-# Format string for %%(asctime)s in log records. Default: %(default)s
-# . (string value)
-#log_date_format = %Y-%m-%d %H:%M:%S
-
-# (Optional) Name of log file to output to. If no default is set,
-# logging will go to stdout. (string value)
-# Deprecated group/name - [DEFAULT]/logfile
-#log_file = <None>
-
-# (Optional) The base directory used for relative --log-file paths.
-# (string value)
-# Deprecated group/name - [DEFAULT]/logdir
-#log_dir = <None>
-
-# Use syslog for logging. Existing syslog format is DEPRECATED during
-# I, and will change in J to honor RFC5424. (boolean value)
-#use_syslog = false
-
-# (Optional) Enables or disables syslog rfc5424 format for logging. If
-# enabled, prefixes the MSG part of the syslog message with APP-NAME
-# (RFC5424). The format without the APP-NAME is deprecated in I, and
-# will be removed in J. (boolean value)
-#use_syslog_rfc_format = false
-
-# Syslog facility to receive log lines. (string value)
-#syslog_log_facility = LOG_USER
-
-# Log output to standard error. (boolean value)
-#use_stderr = true
-
-# Format string to use for log messages with context. (string value)
-#logging_context_format_string = %(asctime)s.%(msecs)03d %(process)d %(levelname)s %(name)s [%(request_id)s %(user_identity)s] %(instance)s%(message)s
-
-# Format string to use for log messages without context. (string
-# value)
-#logging_default_format_string = %(asctime)s.%(msecs)03d %(process)d %(levelname)s %(name)s [-] %(instance)s%(message)s
-
-# Data to append to log format when level is DEBUG. (string value)
-#logging_debug_format_suffix = %(funcName)s %(pathname)s:%(lineno)d
-
-# Prefix each line of exception output with this format. (string
-# value)
-#logging_exception_prefix = %(asctime)s.%(msecs)03d %(process)d TRACE %(name)s %(instance)s
-
-# List of logger=LEVEL pairs. (list value)
-#default_log_levels = amqp=WARN,amqplib=WARN,boto=WARN,qpid=WARN,sqlalchemy=WARN,suds=INFO,oslo.messaging=INFO,iso8601=WARN,requests.packages.urllib3.connectionpool=WARN,urllib3.connectionpool=WARN,websocket=WARN,requests.packages.urllib3.util.retry=WARN,urllib3.util.retry=WARN,keystonemiddleware=WARN,routes.middleware=WARN,stevedore=WARN
-
-# Enables or disables publication of error events. (boolean value)
-#publish_errors = false
-
-# Enables or disables fatal status of deprecations. (boolean value)
-#fatal_deprecations = false
-
-# The format for an instance that is passed with the log message.
-# (string value)
-#instance_format = "[instance: %(uuid)s] "
-
-# The format for an instance UUID that is passed with the log message.
-# (string value)
-#instance_uuid_format = "[instance: %(uuid)s] "
-
 
 [grafana]
 

grafana_dashboards/builder.py

@@ -12,10 +12,10 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
+import logging
 import os
 
 from oslo_config import cfg
-from oslo_log import log as logging
 
 from grafana_dashboards.cache import Cache
 from grafana_dashboards.grafana import Grafana

grafana_dashboards/cache.py

@@ -12,11 +12,11 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
+import logging
 import os
 
 from dogpile.cache.region import make_region
 from oslo_config import cfg
-from oslo_log import log as logging
 
 cache_opts = [
     cfg.StrOpt(

grafana_dashboards/cmd.py

@@ -13,10 +13,10 @@
 # under the License.
 
 import inspect
+import logging
 import sys
 
 from oslo_config import cfg
-from oslo_log import log as logging
 
 from grafana_dashboards.builder import Builder
 from grafana_dashboards import config
@@ -66,13 +66,19 @@ def add_command_parsers(subparsers):
 
 
 command_opt = cfg.SubCommandOpt('action', handler=add_command_parsers)
+logging_opts = cfg.BoolOpt(
+    'debug', default=False, help='Print debugging output (set logging level '
+    'to DEBUG instead of default INFO level).')
 
 
 def main():
     CONF.register_cli_opt(command_opt)
-    logging.register_options(CONF)
+    CONF.register_cli_opt(logging_opts)
     config.prepare_args(sys.argv)
-    logging.setup(CONF, 'grafana-dashboard')
+    if CONF.debug:
+        logging.basicConfig(level=logging.DEBUG)
+    else:
+        logging.basicConfig(level=logging.INFO)
 
     Commands().execute()
     sys.exit(0)

requirements.txt

@@ -1,10 +1,5 @@
-# The order of packages is significant, because pip processes them in the order
-# of appearance. Changing the order has an impact on the overall integration
-# process, which may cause wedges in the gate later.
-
 dogpile.cache
 oslo.config>=1.11.0
-oslo.log>=1.0.0,<1.1.0
 python-slugify
 PyYAML>=3.1.0
 requests