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authorskullydazed <skullydazed@users.noreply.github.com>2019-11-18 14:54:50 -0800
committerFlorian Didron <fdidron@users.noreply.github.com>2020-01-09 08:57:11 +0900
commit4dc4b7af75e4757f13ae8f16ed760452ea4f1af0 (patch)
tree71cb3474d3ee10d26f11178afb75a89b60ee906e /lib/python/milc.py
parent6f57ecc58e85fd9bb6eba7d2b4f7a1e07b9f64bb (diff)
Improve a number of things about how MILC operates (#7344)
* Pull in updates for MILC * Remove the shadow argparser * Make it easier to reason about arguments and how they're translated into the config tree * Populate self.config during init to support setting user.qmk_home for the global CLI * Remove the short argument -c so that we can unambiguously determine the config file location without doing full argument processing * Remove the --save-config option as it's a little confusing anyway * Use Pathlib for path manipulation * Fix commands with no arguments
Diffstat (limited to 'lib/python/milc.py')
-rw-r--r--lib/python/milc.py167
1 files changed, 82 insertions, 85 deletions
diff --git a/lib/python/milc.py b/lib/python/milc.py
index 7b130bdea6..e8599eff3f 100644
--- a/lib/python/milc.py
+++ b/lib/python/milc.py
@@ -20,6 +20,7 @@ import re
import shlex
import sys
from decimal import Decimal
+from pathlib import Path
from tempfile import NamedTemporaryFile
from time import sleep
@@ -39,7 +40,7 @@ import colorama
from appdirs import user_config_dir
# Disable logging until we can configure it how the user wants
-logging.basicConfig(filename='/dev/null')
+logging.basicConfig(stream=os.devnull)
# Log Level Representations
EMOJI_LOGLEVELS = {
@@ -96,7 +97,6 @@ def format_ansi(text):
class ANSIFormatter(logging.Formatter):
"""A log formatter that inserts ANSI color.
"""
-
def format(self, record):
msg = super(ANSIFormatter, self).format(record)
return format_ansi(msg)
@@ -105,7 +105,6 @@ class ANSIFormatter(logging.Formatter):
class ANSIEmojiLoglevelFormatter(ANSIFormatter):
"""A log formatter that makes the loglevel an emoji on UTF capable terminals.
"""
-
def format(self, record):
if UNICODE_SUPPORT:
record.levelname = EMOJI_LOGLEVELS[record.levelname].format(**ansi_colors)
@@ -115,7 +114,6 @@ class ANSIEmojiLoglevelFormatter(ANSIFormatter):
class ANSIStrippingFormatter(ANSIFormatter):
"""A log formatter that strips ANSI.
"""
-
def format(self, record):
msg = super(ANSIStrippingFormatter, self).format(record)
return ansi_escape.sub('', msg)
@@ -127,7 +125,6 @@ class Configuration(object):
This class never raises IndexError, instead it will return None if a
section or option does not yet exist.
"""
-
def __contains__(self, key):
return self._config.__contains__(key)
@@ -214,9 +211,8 @@ def handle_store_boolean(self, *args, **kwargs):
class SubparserWrapper(object):
- """Wrap subparsers so we can populate the normal and the shadow parser.
+ """Wrap subparsers so we can track what options the user passed.
"""
-
def __init__(self, cli, submodule, subparser):
self.cli = cli
self.submodule = submodule
@@ -232,26 +228,30 @@ class SubparserWrapper(object):
self.subparser.completer = completer
def add_argument(self, *args, **kwargs):
+ """Add an argument for this subcommand.
+
+ This also stores the default for the argument in `self.cli.default_arguments`.
+ """
if 'action' in kwargs and kwargs['action'] == 'store_boolean':
+ # Store boolean will call us again with the enable/disable flag arguments
return handle_store_boolean(self, *args, **kwargs)
self.cli.acquire_lock()
self.subparser.add_argument(*args, **kwargs)
-
- if 'default' in kwargs:
- del kwargs['default']
- if 'action' in kwargs and kwargs['action'] == 'store_false':
- kwargs['action'] == 'store_true'
- self.cli.subcommands_default[self.submodule].add_argument(*args, **kwargs)
+ if self.submodule not in self.cli.default_arguments:
+ self.cli.default_arguments[self.submodule] = {}
+ self.cli.default_arguments[self.submodule][self.cli.get_argument_name(*args, **kwargs)] = kwargs.get('default')
self.cli.release_lock()
class MILC(object):
"""MILC - An Opinionated Batteries Included Framework
"""
-
def __init__(self):
"""Initialize the MILC object.
+
+ version
+ The version string to associate with your CLI program
"""
# Setup a lock for thread safety
self._lock = threading.RLock() if thread else None
@@ -263,9 +263,10 @@ class MILC(object):
self._inside_context_manager = False
self.ansi = ansi_colors
self.arg_only = []
- self.config = Configuration()
+ self.config = None
self.config_file = None
- self.version = os.environ.get('QMK_VERSION', 'unknown')
+ self.default_arguments = {}
+ self.version = 'unknown'
self.release_lock()
# Figure out our program name
@@ -273,6 +274,7 @@ class MILC(object):
self.prog_name = self.prog_name.split('/')[-1]
# Initialize all the things
+ self.read_config_file()
self.initialize_argparse()
self.initialize_logging()
@@ -282,7 +284,7 @@ class MILC(object):
@description.setter
def description(self, value):
- self._description = self._arg_parser.description = self._arg_defaults.description = value
+ self._description = self._arg_parser.description = value
def echo(self, text, *args, **kwargs):
"""Print colorized text to stdout.
@@ -311,12 +313,9 @@ class MILC(object):
self.acquire_lock()
self.subcommands = {}
- self.subcommands_default = {}
self._subparsers = None
- self._subparsers_default = None
self.argwarn = argcomplete.warn
self.args = None
- self._arg_defaults = argparse.ArgumentParser(**kwargs)
self._arg_parser = argparse.ArgumentParser(**kwargs)
self.set_defaults = self._arg_parser.set_defaults
self.print_usage = self._arg_parser.print_usage
@@ -329,25 +328,18 @@ class MILC(object):
self._arg_parser.completer = completer
def add_argument(self, *args, **kwargs):
- """Wrapper to add arguments to both the main and the shadow argparser.
+ """Wrapper to add arguments and track whether they were passed on the command line.
"""
if 'action' in kwargs and kwargs['action'] == 'store_boolean':
return handle_store_boolean(self, *args, **kwargs)
- if kwargs.get('add_dest', True) and args[0][0] == '-':
- kwargs['dest'] = 'general_' + self.get_argument_name(*args, **kwargs)
- if 'add_dest' in kwargs:
- del kwargs['add_dest']
-
self.acquire_lock()
+
self._arg_parser.add_argument(*args, **kwargs)
+ if 'general' not in self.default_arguments:
+ self.default_arguments['general'] = {}
+ self.default_arguments['general'][self.get_argument_name(*args, **kwargs)] = kwargs.get('default')
- # Populate the shadow parser
- if 'default' in kwargs:
- del kwargs['default']
- if 'action' in kwargs and kwargs['action'] == 'store_false':
- kwargs['action'] == 'store_true'
- self._arg_defaults.add_argument(*args, **kwargs)
self.release_lock()
def initialize_logging(self):
@@ -374,15 +366,14 @@ class MILC(object):
self.add_argument('--log-file-fmt', default='[%(levelname)s] [%(asctime)s] [file:%(pathname)s] [line:%(lineno)d] %(message)s', help='Format string for log file.')
self.add_argument('--log-file', help='File to write log messages to')
self.add_argument('--color', action='store_boolean', default=True, help='color in output')
- self.add_argument('-c', '--config-file', help='The config file to read and/or write')
- self.add_argument('--save-config', action='store_true', help='Save the running configuration to the config file')
+ self.add_argument('--config-file', help='The location for the configuration file')
+ self.arg_only.append('config_file')
def add_subparsers(self, title='Sub-commands', **kwargs):
if self._inside_context_manager:
raise RuntimeError('You must run this before the with statement!')
self.acquire_lock()
- self._subparsers_default = self._arg_defaults.add_subparsers(title=title, dest='subparsers', **kwargs)
self._subparsers = self._arg_parser.add_subparsers(title=title, dest='subparsers', **kwargs)
self.release_lock()
@@ -404,10 +395,12 @@ class MILC(object):
if self.config_file:
return self.config_file
- if self.args and self.args.general_config_file:
- return self.args.general_config_file
+ if '--config-file' in sys.argv:
+ return Path(sys.argv[sys.argv.index('--config-file') + 1]).expanduser().resolve()
- return os.path.join(user_config_dir(appname='qmk', appauthor='QMK'), '%s.ini' % self.prog_name)
+ filedir = user_config_dir(appname='qmk', appauthor='QMK')
+ filename = '%s.ini' % self.prog_name
+ return Path(filedir) / filename
def get_argument_name(self, *args, **kwargs):
"""Takes argparse arguments and returns the dest name.
@@ -446,7 +439,7 @@ class MILC(object):
def arg_passed(self, arg):
"""Returns True if arg was passed on the command line.
"""
- return self.args_passed[arg] in (None, False)
+ return self.default_arguments.get(arg) != self.args[arg]
def parse_args(self):
"""Parse the CLI args.
@@ -459,25 +452,22 @@ class MILC(object):
self.acquire_lock()
self.args = self._arg_parser.parse_args()
- self.args_passed = self._arg_defaults.parse_args()
if 'entrypoint' in self.args:
self._entrypoint = self.args.entrypoint
- if self.args.general_config_file:
- self.config_file = self.args.general_config_file
-
self.release_lock()
- def read_config(self):
- """Parse the configuration file and determine the runtime configuration.
+ def read_config_file(self):
+ """Read in the configuration file and store it in self.config.
"""
self.acquire_lock()
+ self.config = Configuration()
self.config_file = self.find_config_file()
- if self.config_file and os.path.exists(self.config_file):
+ if self.config_file and self.config_file.exists():
config = RawConfigParser(self.config)
- config.read(self.config_file)
+ config.read(str(self.config_file))
# Iterate over the config file options and write them into self.config
for section in config.sections():
@@ -487,8 +477,10 @@ class MILC(object):
# Coerce values into useful datatypes
if value.lower() in ['1', 'yes', 'true', 'on']:
value = True
- elif value.lower() in ['0', 'no', 'false', 'none', 'off']:
+ elif value.lower() in ['0', 'no', 'false', 'off']:
value = False
+ elif value.lower() in ['none']:
+ continue
elif value.replace('.', '').isdigit():
if '.' in value:
value = Decimal(value)
@@ -497,32 +489,44 @@ class MILC(object):
self.config[section][option] = value
- # Fold the CLI args into self.config
+ self.release_lock()
+
+ def merge_args_into_config(self):
+ """Merge CLI arguments into self.config to create the runtime configuration.
+ """
+ self.acquire_lock()
for argument in vars(self.args):
if argument in ('subparsers', 'entrypoint'):
continue
- if '_' in argument:
- section, option = argument.split('_', 1)
- else:
- section = self._entrypoint.__name__
- option = argument
-
- if option not in self.arg_only:
- if hasattr(self.args_passed, argument):
+ if argument not in self.arg_only:
+ # Find the argument's section
+ if self._entrypoint.__name__ in self.default_arguments and argument in self.default_arguments[self._entrypoint.__name__]:
+ argument_found = True
+ section = self._entrypoint.__name__
+ if argument in self.default_arguments['general']:
+ argument_found = True
+ section = 'general'
+
+ if not argument_found:
+ raise RuntimeError('Could not find argument in `self.default_arguments`. This should be impossible!')
+ exit(1)
+
+ # Merge this argument into self.config
+ if argument in self.default_arguments:
arg_value = getattr(self.args, argument)
if arg_value:
- self.config[section][option] = arg_value
+ self.config[section][argument] = arg_value
else:
- if option not in self.config[section]:
- self.config[section][option] = getattr(self.args, argument)
+ if argument not in self.config[section]:
+ self.config[section][argument] = getattr(self.args, argument)
self.release_lock()
def save_config(self):
"""Save the current configuration to the config file.
"""
- self.log.debug("Saving config file to '%s'", self.config_file)
+ self.log.debug("Saving config file to '%s'", str(self.config_file))
if not self.config_file:
self.log.warning('%s.config_file file not set, not saving config!', self.__class__.__name__)
@@ -530,31 +534,34 @@ class MILC(object):
self.acquire_lock()
+ # Generate a sanitized version of our running configuration
config = RawConfigParser()
- config_dir = os.path.dirname(self.config_file)
-
for section_name, section in self.config._config.items():
config.add_section(section_name)
for option_name, value in section.items():
if section_name == 'general':
- if option_name in ['save_config']:
+ if option_name in ['config_file']:
continue
- config.set(section_name, option_name, str(value))
+ if value is not None:
+ config.set(section_name, option_name, str(value))
- if not os.path.exists(config_dir):
- os.makedirs(config_dir)
+ # Write out the config file
+ config_dir = self.config_file.parent
+ if not config_dir.exists():
+ config_dir.mkdir(parents=True, exist_ok=True)
- with NamedTemporaryFile(mode='w', dir=config_dir, delete=False) as tmpfile:
+ with NamedTemporaryFile(mode='w', dir=str(config_dir), delete=False) as tmpfile:
config.write(tmpfile)
# Move the new config file into place atomically
if os.path.getsize(tmpfile.name) > 0:
- os.rename(tmpfile.name, self.config_file)
+ os.rename(tmpfile.name, str(self.config_file))
else:
- self.log.warning('Config file saving failed, not replacing %s with %s.', self.config_file, tmpfile.name)
+ self.log.warning('Config file saving failed, not replacing %s with %s.', str(self.config_file), tmpfile.name)
+ # Housekeeping
self.release_lock()
- cli.log.info('Wrote configuration to %s', shlex.quote(self.config_file))
+ cli.log.info('Wrote configuration to %s', shlex.quote(str(self.config_file)))
def __call__(self):
"""Execute the entrypoint function.
@@ -603,16 +610,11 @@ class MILC(object):
name = handler.__name__.replace("_", "-")
self.acquire_lock()
+
kwargs['help'] = description
- self.subcommands_default[name] = self._subparsers_default.add_parser(name, **kwargs)
self.subcommands[name] = SubparserWrapper(self, name, self._subparsers.add_parser(name, **kwargs))
self.subcommands[name].set_defaults(entrypoint=handler)
- if name not in self.__dict__:
- self.__dict__[name] = self.subcommands[name]
- else:
- self.log.debug("Could not add subcommand '%s' to attributes, key already exists!", name)
-
self.release_lock()
return handler
@@ -620,7 +622,6 @@ class MILC(object):
def subcommand(self, description, **kwargs):
"""Decorator to register a subcommand.
"""
-
def subcommand_function(handler):
return self.add_subcommand(handler, description, **kwargs)
@@ -644,9 +645,9 @@ class MILC(object):
self.log_format = self.config['general']['log_fmt']
if self.config.general.color:
- self.log_format = ANSIEmojiLoglevelFormatter(self.args.general_log_fmt, self.config.general.datetime_fmt)
+ self.log_format = ANSIEmojiLoglevelFormatter(self.args.log_fmt, self.config.general.datetime_fmt)
else:
- self.log_format = ANSIStrippingFormatter(self.args.general_log_fmt, self.config.general.datetime_fmt)
+ self.log_format = ANSIStrippingFormatter(self.args.log_fmt, self.config.general.datetime_fmt)
if self.log_file:
self.log_file_handler = logging.FileHandler(self.log_file, self.log_file_mode)
@@ -673,13 +674,9 @@ class MILC(object):
colorama.init()
self.parse_args()
- self.read_config()
+ self.merge_args_into_config()
self.setup_logging()
- if 'save_config' in self.config.general and self.config.general.save_config:
- self.save_config()
- exit(0)
-
return self
def __exit__(self, exc_type, exc_val, exc_tb):