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
This commit is contained in:
skullydazed
GitHub
parent
b608bddc5e
commit
9c58da6b12
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@ -20,6 +20,7 @@ import re
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import shlex
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import sys
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from decimal import Decimal
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from pathlib import Path
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from tempfile import NamedTemporaryFile
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from time import sleep
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@ -39,7 +40,7 @@ import colorama
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from appdirs import user_config_dir
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# Disable logging until we can configure it how the user wants
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logging.basicConfig(filename='/dev/null')
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logging.basicConfig(stream=os.devnull)
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# Log Level Representations
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EMOJI_LOGLEVELS = {
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@ -96,7 +97,6 @@ def format_ansi(text):
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class ANSIFormatter(logging.Formatter):
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"""A log formatter that inserts ANSI color.
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"""
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def format(self, record):
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msg = super(ANSIFormatter, self).format(record)
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return format_ansi(msg)
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@ -105,7 +105,6 @@ class ANSIFormatter(logging.Formatter):
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class ANSIEmojiLoglevelFormatter(ANSIFormatter):
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"""A log formatter that makes the loglevel an emoji on UTF capable terminals.
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"""
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def format(self, record):
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if UNICODE_SUPPORT:
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record.levelname = EMOJI_LOGLEVELS[record.levelname].format(**ansi_colors)
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@ -115,7 +114,6 @@ class ANSIEmojiLoglevelFormatter(ANSIFormatter):
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class ANSIStrippingFormatter(ANSIFormatter):
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"""A log formatter that strips ANSI.
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"""
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def format(self, record):
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msg = super(ANSIStrippingFormatter, self).format(record)
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return ansi_escape.sub('', msg)
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@ -127,7 +125,6 @@ class Configuration(object):
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This class never raises IndexError, instead it will return None if a
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section or option does not yet exist.
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"""
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def __contains__(self, key):
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return self._config.__contains__(key)
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@ -214,9 +211,8 @@ def handle_store_boolean(self, *args, **kwargs):
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class SubparserWrapper(object):
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"""Wrap subparsers so we can populate the normal and the shadow parser.
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"""Wrap subparsers so we can track what options the user passed.
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"""
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def __init__(self, cli, submodule, subparser):
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self.cli = cli
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self.submodule = submodule
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@ -232,26 +228,30 @@ class SubparserWrapper(object):
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self.subparser.completer = completer
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def add_argument(self, *args, **kwargs):
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"""Add an argument for this subcommand.
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This also stores the default for the argument in `self.cli.default_arguments`.
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"""
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if 'action' in kwargs and kwargs['action'] == 'store_boolean':
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# Store boolean will call us again with the enable/disable flag arguments
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return handle_store_boolean(self, *args, **kwargs)
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self.cli.acquire_lock()
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self.subparser.add_argument(*args, **kwargs)
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if 'default' in kwargs:
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del kwargs['default']
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if 'action' in kwargs and kwargs['action'] == 'store_false':
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kwargs['action'] == 'store_true'
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self.cli.subcommands_default[self.submodule].add_argument(*args, **kwargs)
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if self.submodule not in self.cli.default_arguments:
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self.cli.default_arguments[self.submodule] = {}
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self.cli.default_arguments[self.submodule][self.cli.get_argument_name(*args, **kwargs)] = kwargs.get('default')
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self.cli.release_lock()
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class MILC(object):
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"""MILC - An Opinionated Batteries Included Framework
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"""
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def __init__(self):
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"""Initialize the MILC object.
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version
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The version string to associate with your CLI program
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"""
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# Setup a lock for thread safety
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self._lock = threading.RLock() if thread else None
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@ -263,9 +263,10 @@ class MILC(object):
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self._inside_context_manager = False
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self.ansi = ansi_colors
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self.arg_only = []
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self.config = Configuration()
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self.config = None
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self.config_file = None
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self.version = os.environ.get('QMK_VERSION', 'unknown')
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self.default_arguments = {}
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self.version = 'unknown'
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self.release_lock()
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# Figure out our program name
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@ -273,6 +274,7 @@ class MILC(object):
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self.prog_name = self.prog_name.split('/')[-1]
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# Initialize all the things
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self.read_config_file()
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self.initialize_argparse()
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self.initialize_logging()
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@ -282,7 +284,7 @@ class MILC(object):
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@description.setter
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def description(self, value):
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self._description = self._arg_parser.description = self._arg_defaults.description = value
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self._description = self._arg_parser.description = value
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def echo(self, text, *args, **kwargs):
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"""Print colorized text to stdout.
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@ -311,12 +313,9 @@ class MILC(object):
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self.acquire_lock()
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self.subcommands = {}
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self.subcommands_default = {}
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self._subparsers = None
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self._subparsers_default = None
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self.argwarn = argcomplete.warn
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self.args = None
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self._arg_defaults = argparse.ArgumentParser(**kwargs)
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self._arg_parser = argparse.ArgumentParser(**kwargs)
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self.set_defaults = self._arg_parser.set_defaults
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self.print_usage = self._arg_parser.print_usage
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@ -329,25 +328,18 @@ class MILC(object):
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self._arg_parser.completer = completer
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def add_argument(self, *args, **kwargs):
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"""Wrapper to add arguments to both the main and the shadow argparser.
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"""Wrapper to add arguments and track whether they were passed on the command line.
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"""
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if 'action' in kwargs and kwargs['action'] == 'store_boolean':
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return handle_store_boolean(self, *args, **kwargs)
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if kwargs.get('add_dest', True) and args[0][0] == '-':
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kwargs['dest'] = 'general_' + self.get_argument_name(*args, **kwargs)
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if 'add_dest' in kwargs:
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del kwargs['add_dest']
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self.acquire_lock()
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self._arg_parser.add_argument(*args, **kwargs)
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# Populate the shadow parser
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if 'default' in kwargs:
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del kwargs['default']
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if 'action' in kwargs and kwargs['action'] == 'store_false':
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kwargs['action'] == 'store_true'
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self._arg_defaults.add_argument(*args, **kwargs)
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self._arg_parser.add_argument(*args, **kwargs)
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if 'general' not in self.default_arguments:
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self.default_arguments['general'] = {}
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self.default_arguments['general'][self.get_argument_name(*args, **kwargs)] = kwargs.get('default')
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self.release_lock()
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def initialize_logging(self):
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@ -374,15 +366,14 @@ class MILC(object):
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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.')
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self.add_argument('--log-file', help='File to write log messages to')
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self.add_argument('--color', action='store_boolean', default=True, help='color in output')
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self.add_argument('-c', '--config-file', help='The config file to read and/or write')
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self.add_argument('--save-config', action='store_true', help='Save the running configuration to the config file')
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self.add_argument('--config-file', help='The location for the configuration file')
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self.arg_only.append('config_file')
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def add_subparsers(self, title='Sub-commands', **kwargs):
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if self._inside_context_manager:
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raise RuntimeError('You must run this before the with statement!')
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self.acquire_lock()
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self._subparsers_default = self._arg_defaults.add_subparsers(title=title, dest='subparsers', **kwargs)
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self._subparsers = self._arg_parser.add_subparsers(title=title, dest='subparsers', **kwargs)
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self.release_lock()
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@ -404,10 +395,12 @@ class MILC(object):
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if self.config_file:
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return self.config_file
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if self.args and self.args.general_config_file:
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return self.args.general_config_file
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if '--config-file' in sys.argv:
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return Path(sys.argv[sys.argv.index('--config-file') + 1]).expanduser().resolve()
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return os.path.join(user_config_dir(appname='qmk', appauthor='QMK'), '%s.ini' % self.prog_name)
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filedir = user_config_dir(appname='qmk', appauthor='QMK')
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filename = '%s.ini' % self.prog_name
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return Path(filedir) / filename
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def get_argument_name(self, *args, **kwargs):
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"""Takes argparse arguments and returns the dest name.
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@ -446,7 +439,7 @@ class MILC(object):
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def arg_passed(self, arg):
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"""Returns True if arg was passed on the command line.
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"""
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return self.args_passed[arg] in (None, False)
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return self.default_arguments.get(arg) != self.args[arg]
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def parse_args(self):
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"""Parse the CLI args.
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@ -459,25 +452,22 @@ class MILC(object):
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self.acquire_lock()
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self.args = self._arg_parser.parse_args()
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self.args_passed = self._arg_defaults.parse_args()
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if 'entrypoint' in self.args:
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self._entrypoint = self.args.entrypoint
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if self.args.general_config_file:
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self.config_file = self.args.general_config_file
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self.release_lock()
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def read_config(self):
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"""Parse the configuration file and determine the runtime configuration.
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def read_config_file(self):
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"""Read in the configuration file and store it in self.config.
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"""
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self.acquire_lock()
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self.config = Configuration()
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self.config_file = self.find_config_file()
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if self.config_file and os.path.exists(self.config_file):
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if self.config_file and self.config_file.exists():
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config = RawConfigParser(self.config)
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config.read(self.config_file)
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config.read(str(self.config_file))
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# Iterate over the config file options and write them into self.config
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for section in config.sections():
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@ -487,8 +477,10 @@ class MILC(object):
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# Coerce values into useful datatypes
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if value.lower() in ['1', 'yes', 'true', 'on']:
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value = True
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elif value.lower() in ['0', 'no', 'false', 'none', 'off']:
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elif value.lower() in ['0', 'no', 'false', 'off']:
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value = False
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elif value.lower() in ['none']:
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continue
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elif value.replace('.', '').isdigit():
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if '.' in value:
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value = Decimal(value)
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@ -497,32 +489,44 @@ class MILC(object):
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self.config[section][option] = value
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# Fold the CLI args into self.config
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self.release_lock()
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def merge_args_into_config(self):
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"""Merge CLI arguments into self.config to create the runtime configuration.
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"""
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self.acquire_lock()
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for argument in vars(self.args):
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if argument in ('subparsers', 'entrypoint'):
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continue
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if '_' in argument:
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section, option = argument.split('_', 1)
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else:
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section = self._entrypoint.__name__
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option = argument
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if argument not in self.arg_only:
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# Find the argument's section
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if self._entrypoint.__name__ in self.default_arguments and argument in self.default_arguments[self._entrypoint.__name__]:
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argument_found = True
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section = self._entrypoint.__name__
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if argument in self.default_arguments['general']:
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argument_found = True
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section = 'general'
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if option not in self.arg_only:
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if hasattr(self.args_passed, argument):
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if not argument_found:
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raise RuntimeError('Could not find argument in `self.default_arguments`. This should be impossible!')
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exit(1)
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# Merge this argument into self.config
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if argument in self.default_arguments:
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arg_value = getattr(self.args, argument)
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if arg_value:
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self.config[section][option] = arg_value
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self.config[section][argument] = arg_value
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else:
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if option not in self.config[section]:
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self.config[section][option] = getattr(self.args, argument)
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if argument not in self.config[section]:
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self.config[section][argument] = getattr(self.args, argument)
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self.release_lock()
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def save_config(self):
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"""Save the current configuration to the config file.
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"""
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self.log.debug("Saving config file to '%s'", self.config_file)
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self.log.debug("Saving config file to '%s'", str(self.config_file))
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if not self.config_file:
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self.log.warning('%s.config_file file not set, not saving config!', self.__class__.__name__)
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@ -530,31 +534,34 @@ class MILC(object):
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self.acquire_lock()
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# Generate a sanitized version of our running configuration
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config = RawConfigParser()
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config_dir = os.path.dirname(self.config_file)
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for section_name, section in self.config._config.items():
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config.add_section(section_name)
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for option_name, value in section.items():
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if section_name == 'general':
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if option_name in ['save_config']:
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if option_name in ['config_file']:
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continue
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config.set(section_name, option_name, str(value))
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if value is not None:
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config.set(section_name, option_name, str(value))
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if not os.path.exists(config_dir):
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os.makedirs(config_dir)
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# Write out the config file
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config_dir = self.config_file.parent
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if not config_dir.exists():
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config_dir.mkdir(parents=True, exist_ok=True)
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with NamedTemporaryFile(mode='w', dir=config_dir, delete=False) as tmpfile:
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with NamedTemporaryFile(mode='w', dir=str(config_dir), delete=False) as tmpfile:
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config.write(tmpfile)
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# Move the new config file into place atomically
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if os.path.getsize(tmpfile.name) > 0:
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os.rename(tmpfile.name, self.config_file)
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os.rename(tmpfile.name, str(self.config_file))
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else:
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self.log.warning('Config file saving failed, not replacing %s with %s.', self.config_file, tmpfile.name)
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self.log.warning('Config file saving failed, not replacing %s with %s.', str(self.config_file), tmpfile.name)
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# Housekeeping
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self.release_lock()
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cli.log.info('Wrote configuration to %s', shlex.quote(self.config_file))
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cli.log.info('Wrote configuration to %s', shlex.quote(str(self.config_file)))
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def __call__(self):
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"""Execute the entrypoint function.
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@ -603,16 +610,11 @@ class MILC(object):
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name = handler.__name__.replace("_", "-")
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self.acquire_lock()
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kwargs['help'] = description
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self.subcommands_default[name] = self._subparsers_default.add_parser(name, **kwargs)
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self.subcommands[name] = SubparserWrapper(self, name, self._subparsers.add_parser(name, **kwargs))
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self.subcommands[name].set_defaults(entrypoint=handler)
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if name not in self.__dict__:
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self.__dict__[name] = self.subcommands[name]
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else:
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self.log.debug("Could not add subcommand '%s' to attributes, key already exists!", name)
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self.release_lock()
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return handler
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@ -620,7 +622,6 @@ class MILC(object):
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def subcommand(self, description, **kwargs):
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"""Decorator to register a subcommand.
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"""
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def subcommand_function(handler):
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return self.add_subcommand(handler, description, **kwargs)
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@ -644,9 +645,9 @@ class MILC(object):
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self.log_format = self.config['general']['log_fmt']
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if self.config.general.color:
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self.log_format = ANSIEmojiLoglevelFormatter(self.args.general_log_fmt, self.config.general.datetime_fmt)
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self.log_format = ANSIEmojiLoglevelFormatter(self.args.log_fmt, self.config.general.datetime_fmt)
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else:
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self.log_format = ANSIStrippingFormatter(self.args.general_log_fmt, self.config.general.datetime_fmt)
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self.log_format = ANSIStrippingFormatter(self.args.log_fmt, self.config.general.datetime_fmt)
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if self.log_file:
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self.log_file_handler = logging.FileHandler(self.log_file, self.log_file_mode)
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@ -673,13 +674,9 @@ class MILC(object):
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colorama.init()
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self.parse_args()
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self.read_config()
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self.merge_args_into_config()
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self.setup_logging()
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if 'save_config' in self.config.general and self.config.general.save_config:
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self.save_config()
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exit(0)
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return self
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def __exit__(self, exc_type, exc_val, exc_tb):
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