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@@ -0,0 +1,703 @@
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+#!/usr/bin/env python3
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+# coding=utf-8
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+"""MILC - A CLI Framework
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+
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+PYTHON_ARGCOMPLETE_OK
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+
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+MILC is an opinionated framework for writing CLI apps. It optimizes for the
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+most common unix tool pattern- small tools that are run from the command
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+line but generally do not feature any user interaction while they run.
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+
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+For more details see the MILC documentation:
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+
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+ <https://github.com/clueboard/milc/tree/master/docs>
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+"""
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+from __future__ import division, print_function, unicode_literals
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+import argparse
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+import logging
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+import os.path
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+import re
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+import sys
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+from decimal import Decimal
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+from tempfile import NamedTemporaryFile
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+from time import sleep
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+
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+try:
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+ from ConfigParser import RawConfigParser
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+except ImportError:
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+ from configparser import RawConfigParser
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+
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+try:
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+ import thread
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+ import threading
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+except ImportError:
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+ thread = None
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+
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+import argcomplete
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+import colorama
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+
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+
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+# Log Level Representations
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+EMOJI_LOGLEVELS = {
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+ 'CRITICAL': '{bg_red}{fg_white}¬_¬{style_reset_all}',
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+ 'ERROR': '{fg_red}☒{style_reset_all}',
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+ 'WARNING': '{fg_yellow}⚠{style_reset_all}',
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+ 'INFO': '{fg_blue}ℹ{style_reset_all}',
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+ 'DEBUG': '{fg_cyan}☐{style_reset_all}',
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+ 'NOTSET': '{style_reset_all}¯\\_(o_o)_/¯'
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+}
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+EMOJI_LOGLEVELS['FATAL'] = EMOJI_LOGLEVELS['CRITICAL']
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+EMOJI_LOGLEVELS['WARN'] = EMOJI_LOGLEVELS['WARNING']
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+
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+
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+# ANSI Color setup
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+# Regex was gratefully borrowed from kfir on stackoverflow:
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+# https://stackoverflow.com/a/45448194
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+ansi_regex = r'\x1b(' \
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+ r'(\[\??\d+[hl])|' \
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+ r'([=<>a-kzNM78])|' \
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+ r'([\(\)][a-b0-2])|' \
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+ r'(\[\d{0,2}[ma-dgkjqi])|' \
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+ r'(\[\d+;\d+[hfy]?)|' \
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+ r'(\[;?[hf])|' \
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+ r'(#[3-68])|' \
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+ r'([01356]n)|' \
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+ r'(O[mlnp-z]?)|' \
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+ r'(/Z)|' \
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+ r'(\d+)|' \
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+ r'(\[\?\d;\d0c)|' \
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+ r'(\d;\dR))'
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+ansi_escape = re.compile(ansi_regex, flags=re.IGNORECASE)
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+ansi_colors = {}
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+for prefix, obj in (('fg', colorama.ansi.AnsiFore()),
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+ ('bg', colorama.ansi.AnsiBack()),
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+ ('style', colorama.ansi.AnsiStyle())):
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+ for color in [x for x in obj.__dict__ if not x.startswith('_')]:
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+ ansi_colors[prefix + '_' + color.lower()] = getattr(obj, color)
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+
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+
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+def format_ansi(text):
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+ """Return a copy of text with certain strings replaced with ansi.
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+ """
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+ # Avoid .format() so we don't have to worry about the log content
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+ for color in ansi_colors:
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+ text = text.replace('{%s}' % color, ansi_colors[color])
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+ return text + ansi_colors['style_reset_all']
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+
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+
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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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+
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+
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+class ANSIEmojiLoglevelFormatter(ANSIFormatter):
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+ """A log formatter that makes the loglevel an emoji.
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+ """
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+ def format(self, record):
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+ record.levelname = EMOJI_LOGLEVELS[record.levelname].format(**ansi_colors)
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+ return super(ANSIEmojiLoglevelFormatter, self).format(record)
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+
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+
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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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+
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+
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+class Configuration(object):
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+ """Represents the running configuration.
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+
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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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+
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+ def __iter__(self):
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+ return self._config.__iter__()
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+
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+ def __len__(self):
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+ return self._config.__len__()
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+
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+ def __repr__(self):
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+ return self._config.__repr__()
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+
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+ def keys(self):
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+ return self._config.keys()
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+
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+ def items(self):
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+ return self._config.items()
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+
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+ def values(self):
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+ return self._config.values()
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+
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+ def __init__(self, *args, **kwargs):
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+ self._config = {}
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+ self.default_container = ConfigurationOption
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+
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+ def __getitem__(self, key):
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+ """Returns a config section, creating it if it doesn't exist yet.
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+ """
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+ if key not in self._config:
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+ self.__dict__[key] = self._config[key] = ConfigurationOption()
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+
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+ return self._config[key]
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+
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+ def __setitem__(self, key, value):
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+ self.__dict__[key] = value
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+ self._config[key] = value
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+
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+ def __delitem__(self, key):
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+ if key in self.__dict__ and key[0] != '_':
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+ del(self.__dict__[key])
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+ del(self._config[key])
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+
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+
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+class ConfigurationOption(Configuration):
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+ def __init__(self, *args, **kwargs):
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+ super(ConfigurationOption, self).__init__(*args, **kwargs)
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+ self.default_container = dict
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+
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+ def __getitem__(self, key):
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+ """Returns a config section, creating it if it doesn't exist yet.
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+ """
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+ if key not in self._config:
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+ self.__dict__[key] = self._config[key] = None
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+
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+ return self._config[key]
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+
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+
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+def handle_store_boolean(self, *args, **kwargs):
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+ """Does the add_argument for action='store_boolean'.
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+ """
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+ kwargs['add_dest'] = False
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+ disabled_args = None
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+ disabled_kwargs = kwargs.copy()
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+ disabled_kwargs['action'] = 'store_false'
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+ disabled_kwargs['help'] = 'Disable ' + kwargs['help']
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+ kwargs['action'] = 'store_true'
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+ kwargs['help'] = 'Enable ' + kwargs['help']
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+
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+ for flag in args:
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+ if flag[:2] == '--':
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+ disabled_args = ('--no-' + flag[2:],)
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+ break
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+
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+ self.add_argument(*args, **kwargs)
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+ self.add_argument(*disabled_args, **disabled_kwargs)
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+
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+ return (args, kwargs, disabled_args, disabled_kwargs)
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+
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+
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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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+ """
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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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+ self.subparser = subparser
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+
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+ for attr in dir(subparser):
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+ if not hasattr(self, attr):
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+ setattr(self, attr, getattr(subparser, attr))
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+
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+ def completer(self, completer):
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+ """Add an arpcomplete completer to this subcommand.
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+ """
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+ self.subparser.completer = completer
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+
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+ def add_argument(self, *args, **kwargs):
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+ if kwargs.get('add_dest', True):
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+ kwargs['dest'] = self.submodule + '_' + self.cli.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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+
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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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+
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+ self.cli.acquire_lock()
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+ self.subparser.add_argument(*args, **kwargs)
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+
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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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+ self.cli.release_lock()
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+
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+
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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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+ """
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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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+
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+ # Define some basic info
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+ self.acquire_lock()
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+ self._description = None
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+ self._entrypoint = None
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+ self._inside_context_manager = False
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+ self.ansi = ansi_colors
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+ self.config = Configuration()
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+ self.config_file = None
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+ self.prog_name = sys.argv[0][:-3] if sys.argv[0].endswith('.py') else sys.argv[0]
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+ self.version = 'unknown'
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+ self.release_lock()
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+
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+ # Initialize all the things
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+ self.initialize_argparse()
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+ self.initialize_logging()
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+
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+ @property
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+ def description(self):
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+ return self._description
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+
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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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+
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+ def echo(self, text, *args, **kwargs):
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+ """Print a string to stdout after formatting.
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+
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+ ANSI color strings (such as {fg-blue}) will be converted into ANSI
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+ escape sequences, and the ANSI reset sequence will be added to all
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+ strings.
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+
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+ If *args or **kwargs are passed they will be used to %-format the strings.
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+ """
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+ if args and kwargs:
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+ raise RuntimeError('You can only specify *args or **kwargs, not both!')
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+
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+ args = args or kwargs
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+ text = format_ansi(text)
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+
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+ print(text % args)
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+
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+ def initialize_argparse(self):
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+ """Prepare to process arguments from sys.argv.
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+ """
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+ kwargs = {
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+ 'fromfile_prefix_chars': '@',
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+ 'conflict_handler': 'resolve'
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+ }
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+
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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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+ self.print_help = self._arg_parser.print_help
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+ self.release_lock()
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+
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+ def completer(self, completer):
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+ """Add an arpcomplete completer to this subcommand.
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+ """
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+ self._arg_parser.completer = completer
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+
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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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+ """
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+ if kwargs.get('add_dest', True):
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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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+
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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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+
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+ self.acquire_lock()
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+ self._arg_parser.add_argument(*args, **kwargs)
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+
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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.release_lock()
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+
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+ def initialize_logging(self):
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+ """Prepare the defaults for the logging infrastructure.
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+ """
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+ self.acquire_lock()
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+ self.log_file = None
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+ self.log_file_mode = 'a'
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+ self.log_file_handler = None
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+ self.log_print = True
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+ self.log_print_to = sys.stderr
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+ self.log_print_level = logging.INFO
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+ self.log_file_level = logging.DEBUG
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+ self.log_level = logging.INFO
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+ self.log = logging.getLogger(self.__class__.__name__)
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+ self.log.setLevel(logging.DEBUG)
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+ logging.root.setLevel(logging.DEBUG)
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+ self.release_lock()
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+
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+ self.add_argument('-V', '--version', version=self.version, action='version', help='Display the version and exit')
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+ self.add_argument('-v', '--verbose', action='store_true', help='Make the logging more verbose')
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+ self.add_argument('--datetime-fmt', default='%Y-%m-%d %H:%M:%S', help='Format string for datetimes')
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+ self.add_argument('--log-fmt', default='%(levelname)s %(message)s', help='Format string for printed log output')
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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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+
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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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+
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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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+
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+ def acquire_lock(self):
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+ """Acquire the MILC lock for exclusive access to properties.
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+ """
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+ if self._lock:
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+ self._lock.acquire()
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+
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+ def release_lock(self):
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+ """Release the MILC lock.
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+ """
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+ if self._lock:
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+ self._lock.release()
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+
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+ def find_config_file(self):
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+ """Locate the config file.
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+ """
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+ if self.config_file:
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+ return self.config_file
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+
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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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+
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+ return os.path.abspath(os.path.expanduser('~/.%s.ini' % self.prog_name))
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+
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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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+ """
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+ return self._arg_parser._get_optional_kwargs(*args, **kwargs)['dest']
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+
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+ def argument(self, *args, **kwargs):
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|
|
+ """Decorator to call self.add_argument or self.<subcommand>.add_argument.
|
|
|
+ """
|
|
|
+ if self._inside_context_manager:
|
|
|
+ raise RuntimeError('You must run this before the with statement!')
|
|
|
+
|
|
|
+ def argument_function(handler):
|
|
|
+ if handler is self._entrypoint:
|
|
|
+ self.add_argument(*args, **kwargs)
|
|
|
+
|
|
|
+ elif handler.__name__ in self.subcommands:
|
|
|
+ self.subcommands[handler.__name__].add_argument(*args, **kwargs)
|
|
|
+
|
|
|
+ else:
|
|
|
+ raise RuntimeError('Decorated function is not entrypoint or subcommand!')
|
|
|
+
|
|
|
+ return handler
|
|
|
+
|
|
|
+ return argument_function
|
|
|
+
|
|
|
+ def arg_passed(self, arg):
|
|
|
+ """Returns True if arg was passed on the command line.
|
|
|
+ """
|
|
|
+ return self.args_passed[arg] in (None, False)
|
|
|
+
|
|
|
+ def parse_args(self):
|
|
|
+ """Parse the CLI args.
|
|
|
+ """
|
|
|
+ if self.args:
|
|
|
+ self.log.debug('Warning: Arguments have already been parsed, ignoring duplicate attempt!')
|
|
|
+ return
|
|
|
+
|
|
|
+ argcomplete.autocomplete(self._arg_parser)
|
|
|
+
|
|
|
+ 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.
|
|
|
+ """
|
|
|
+ self.acquire_lock()
|
|
|
+ self.config_file = self.find_config_file()
|
|
|
+
|
|
|
+ if self.config_file and os.path.exists(self.config_file):
|
|
|
+ config = RawConfigParser(self.config)
|
|
|
+ config.read(self.config_file)
|
|
|
+
|
|
|
+ # Iterate over the config file options and write them into self.config
|
|
|
+ for section in config.sections():
|
|
|
+ for option in config.options(section):
|
|
|
+ value = config.get(section, option)
|
|
|
+
|
|
|
+ # Coerce values into useful datatypes
|
|
|
+ if value.lower() in ['1', 'yes', 'true', 'on']:
|
|
|
+ value = True
|
|
|
+ elif value.lower() in ['0', 'no', 'false', 'none', 'off']:
|
|
|
+ value = False
|
|
|
+ elif value.replace('.', '').isdigit():
|
|
|
+ if '.' in value:
|
|
|
+ value = Decimal(value)
|
|
|
+ else:
|
|
|
+ value = int(value)
|
|
|
+
|
|
|
+ self.config[section][option] = value
|
|
|
+
|
|
|
+ # Fold the CLI args into self.config
|
|
|
+ for argument in vars(self.args):
|
|
|
+ if argument in ('subparsers', 'entrypoint'):
|
|
|
+ continue
|
|
|
+
|
|
|
+ if '_' not in argument:
|
|
|
+ continue
|
|
|
+
|
|
|
+ section, option = argument.split('_', 1)
|
|
|
+ if hasattr(self.args_passed, argument):
|
|
|
+ self.config[section][option] = getattr(self.args, argument)
|
|
|
+ else:
|
|
|
+ if option not in self.config[section]:
|
|
|
+ self.config[section][option] = 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)
|
|
|
+
|
|
|
+ if not self.config_file:
|
|
|
+ self.log.warning('%s.config_file file not set, not saving config!', self.__class__.__name__)
|
|
|
+ return
|
|
|
+
|
|
|
+ self.acquire_lock()
|
|
|
+
|
|
|
+ config = RawConfigParser()
|
|
|
+ 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']:
|
|
|
+ continue
|
|
|
+ config.set(section_name, option_name, str(value))
|
|
|
+
|
|
|
+ with NamedTemporaryFile(mode='w', dir=os.path.dirname(self.config_file), 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)
|
|
|
+ else:
|
|
|
+ self.log.warning('Config file saving failed, not replacing %s with %s.', self.config_file, tmpfile.name)
|
|
|
+
|
|
|
+ self.release_lock()
|
|
|
+
|
|
|
+ def __call__(self):
|
|
|
+ """Execute the entrypoint function.
|
|
|
+ """
|
|
|
+ if not self._inside_context_manager:
|
|
|
+ # If they didn't use the context manager use it ourselves
|
|
|
+ with self:
|
|
|
+ self.__call__()
|
|
|
+ return
|
|
|
+
|
|
|
+ if not self._entrypoint:
|
|
|
+ raise RuntimeError('No entrypoint provided!')
|
|
|
+
|
|
|
+ return self._entrypoint(self)
|
|
|
+
|
|
|
+ def entrypoint(self, description):
|
|
|
+ """Set the entrypoint for when no subcommand is provided.
|
|
|
+ """
|
|
|
+ if self._inside_context_manager:
|
|
|
+ raise RuntimeError('You must run this before cli()!')
|
|
|
+
|
|
|
+ self.acquire_lock()
|
|
|
+ self.description = description
|
|
|
+ self.release_lock()
|
|
|
+
|
|
|
+ def entrypoint_func(handler):
|
|
|
+ self.acquire_lock()
|
|
|
+ self._entrypoint = handler
|
|
|
+ self.release_lock()
|
|
|
+
|
|
|
+ return handler
|
|
|
+
|
|
|
+ return entrypoint_func
|
|
|
+
|
|
|
+ def add_subcommand(self, handler, description, name=None, **kwargs):
|
|
|
+ """Register a subcommand.
|
|
|
+
|
|
|
+ If name is not provided we use `handler.__name__`.
|
|
|
+ """
|
|
|
+ if self._inside_context_manager:
|
|
|
+ raise RuntimeError('You must run this before the with statement!')
|
|
|
+
|
|
|
+ if self._subparsers is None:
|
|
|
+ self.add_subparsers()
|
|
|
+
|
|
|
+ if not name:
|
|
|
+ name = handler.__name__
|
|
|
+
|
|
|
+ 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
|
|
|
+
|
|
|
+ def subcommand(self, description, **kwargs):
|
|
|
+ """Decorator to register a subcommand.
|
|
|
+ """
|
|
|
+ def subcommand_function(handler):
|
|
|
+ return self.add_subcommand(handler, description, **kwargs)
|
|
|
+
|
|
|
+ return subcommand_function
|
|
|
+
|
|
|
+ def setup_logging(self):
|
|
|
+ """Called by __enter__() to setup the logging configuration.
|
|
|
+ """
|
|
|
+ if len(logging.root.handlers) != 0:
|
|
|
+ # This is not a design decision. This is what I'm doing for now until I can examine and think about this situation in more detail.
|
|
|
+ raise RuntimeError('MILC should be the only system installing root log handlers!')
|
|
|
+
|
|
|
+ self.acquire_lock()
|
|
|
+
|
|
|
+ if self.config['general']['verbose']:
|
|
|
+ self.log_print_level = logging.DEBUG
|
|
|
+
|
|
|
+ self.log_file = self.config['general']['log_file'] or self.log_file
|
|
|
+ self.log_file_format = self.config['general']['log_file_fmt']
|
|
|
+ self.log_file_format = ANSIStrippingFormatter(self.config['general']['log_file_fmt'], self.config['general']['datetime_fmt'])
|
|
|
+ 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)
|
|
|
+ else:
|
|
|
+ self.log_format = ANSIStrippingFormatter(self.args.general_log_fmt, self.config.general.datetime_fmt)
|
|
|
+
|
|
|
+ if self.log_file:
|
|
|
+ self.log_file_handler = logging.FileHandler(self.log_file, self.log_file_mode)
|
|
|
+ self.log_file_handler.setLevel(self.log_file_level)
|
|
|
+ self.log_file_handler.setFormatter(self.log_file_format)
|
|
|
+ logging.root.addHandler(self.log_file_handler)
|
|
|
+
|
|
|
+ if self.log_print:
|
|
|
+ self.log_print_handler = logging.StreamHandler(self.log_print_to)
|
|
|
+ self.log_print_handler.setLevel(self.log_print_level)
|
|
|
+ self.log_print_handler.setFormatter(self.log_format)
|
|
|
+ logging.root.addHandler(self.log_print_handler)
|
|
|
+
|
|
|
+ self.release_lock()
|
|
|
+
|
|
|
+ def __enter__(self):
|
|
|
+ if self._inside_context_manager:
|
|
|
+ self.log.debug('Warning: context manager was entered again. This usually means that self.__call__() was called before the with statement. You probably do not want to do that.')
|
|
|
+ return
|
|
|
+
|
|
|
+ self.acquire_lock()
|
|
|
+ self._inside_context_manager = True
|
|
|
+ self.release_lock()
|
|
|
+
|
|
|
+ colorama.init()
|
|
|
+ self.parse_args()
|
|
|
+ self.read_config()
|
|
|
+ self.setup_logging()
|
|
|
+
|
|
|
+ if self.config.general.save_config:
|
|
|
+ self.save_config()
|
|
|
+
|
|
|
+ return self
|
|
|
+
|
|
|
+ def __exit__(self, exc_type, exc_val, exc_tb):
|
|
|
+ self.acquire_lock()
|
|
|
+ self._inside_context_manager = False
|
|
|
+ self.release_lock()
|
|
|
+
|
|
|
+ if exc_type is not None:
|
|
|
+ logging.exception(exc_val)
|
|
|
+ exit(255)
|
|
|
+
|
|
|
+
|
|
|
+cli = MILC()
|
|
|
+
|
|
|
+if __name__ == '__main__':
|
|
|
+ @cli.argument('-c', '--comma', help='comma in output', default=True, action='store_boolean')
|
|
|
+ @cli.entrypoint('My useful CLI tool with subcommands.')
|
|
|
+ def main(cli):
|
|
|
+ comma = ',' if cli.config.general.comma else ''
|
|
|
+ cli.log.info('{bg_green}{fg_red}Hello%s World!', comma)
|
|
|
+
|
|
|
+ @cli.argument('-n', '--name', help='Name to greet', default='World')
|
|
|
+ @cli.subcommand('Description of hello subcommand here.')
|
|
|
+ def hello(cli):
|
|
|
+ comma = ',' if cli.config.general.comma else ''
|
|
|
+ cli.log.info('{fg_blue}Hello%s %s!', comma, cli.config.hello.name)
|
|
|
+
|
|
|
+ def goodbye(cli):
|
|
|
+ comma = ',' if cli.config.general.comma else ''
|
|
|
+ cli.log.info('{bg_red}Goodbye%s %s!', comma, cli.config.goodbye.name)
|
|
|
+
|
|
|
+ @cli.argument('-n', '--name', help='Name to greet', default='World')
|
|
|
+ @cli.subcommand('Think a bit before greeting the user.')
|
|
|
+ def thinking(cli):
|
|
|
+ comma = ',' if cli.config.general.comma else ''
|
|
|
+ spinner = cli.spinner(text='Just a moment...', spinner='earth')
|
|
|
+ spinner.start()
|
|
|
+ sleep(2)
|
|
|
+ spinner.stop()
|
|
|
+
|
|
|
+ with cli.spinner(text='Almost there!', spinner='moon'):
|
|
|
+ sleep(2)
|
|
|
+
|
|
|
+ cli.log.info('{fg_cyan}Hello%s %s!', comma, cli.config.thinking.name)
|
|
|
+
|
|
|
+ @cli.subcommand('Show off our ANSI colors.')
|
|
|
+ def pride(cli):
|
|
|
+ cli.echo('{bg_red} ')
|
|
|
+ cli.echo('{bg_lightred_ex} ')
|
|
|
+ cli.echo('{bg_lightyellow_ex} ')
|
|
|
+ cli.echo('{bg_green} ')
|
|
|
+ cli.echo('{bg_blue} ')
|
|
|
+ cli.echo('{bg_magenta} ')
|
|
|
+
|
|
|
+ if __name__ == '__main__':
|
|
|
+ # You can register subcommands using decorators as seen above,
|
|
|
+ # or using functions like like this:
|
|
|
+ cli.add_subcommand(goodbye, 'This will show up in --help output.')
|
|
|
+ cli.goodbye.add_argument('-n', '--name', help='Name to bid farewell to', default='World')
|
|
|
+
|
|
|
+ cli() # Automatically picks between main(), hello() and goodbye()
|
|
|
+ print(sorted(ansi_colors.keys()))
|
skullY