234 lines
8.1 KiB
Python
234 lines
8.1 KiB
Python
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import logging
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import os
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import re
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import sh
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from sys import stdout, stderr
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from math import log10
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from collections import defaultdict
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from colorama import Style as Colo_Style, Fore as Colo_Fore
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import six
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# This codecs change fixes a bug with log output, but crashes under python3
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if not six.PY3:
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import codecs
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stdout = codecs.getwriter('utf8')(stdout)
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stderr = codecs.getwriter('utf8')(stderr)
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if six.PY2:
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unistr = unicode
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else:
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unistr = str
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# monkey patch to show full output
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sh.ErrorReturnCode.truncate_cap = 999999
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class LevelDifferentiatingFormatter(logging.Formatter):
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def format(self, record):
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if record.levelno > 30:
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record.msg = '{}{}[ERROR]{}{}: '.format(
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Err_Style.BRIGHT, Err_Fore.RED, Err_Fore.RESET,
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Err_Style.RESET_ALL) + record.msg
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elif record.levelno > 20:
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record.msg = '{}{}[WARNING]{}{}: '.format(
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Err_Style.BRIGHT, Err_Fore.RED, Err_Fore.RESET,
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Err_Style.RESET_ALL) + record.msg
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elif record.levelno > 10:
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record.msg = '{}[INFO]{}: '.format(
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Err_Style.BRIGHT, Err_Style.RESET_ALL) + record.msg
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else:
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record.msg = '{}{}[DEBUG]{}{}: '.format(
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Err_Style.BRIGHT, Err_Fore.LIGHTBLACK_EX, Err_Fore.RESET,
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Err_Style.RESET_ALL) + record.msg
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return super(LevelDifferentiatingFormatter, self).format(record)
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logger = logging.getLogger('p4a')
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if not hasattr(logger, 'touched'): # Necessary as importlib reloads
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# this, which would add a second
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# handler and reset the level
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logger.setLevel(logging.INFO)
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logger.touched = True
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ch = logging.StreamHandler(stderr)
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formatter = LevelDifferentiatingFormatter('%(message)s')
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ch.setFormatter(formatter)
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logger.addHandler(ch)
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info = logger.info
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debug = logger.debug
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warning = logger.warning
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error = logger.error
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class colorama_shim(object):
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def __init__(self, real):
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self._dict = defaultdict(str)
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self._real = real
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self._enabled = False
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def __getattr__(self, key):
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return getattr(self._real, key) if self._enabled else self._dict[key]
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def enable(self, enable):
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self._enabled = enable
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Out_Style = colorama_shim(Colo_Style)
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Out_Fore = colorama_shim(Colo_Fore)
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Err_Style = colorama_shim(Colo_Style)
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Err_Fore = colorama_shim(Colo_Fore)
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def setup_color(color):
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enable_out = (False if color == 'never' else
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True if color == 'always' else
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stdout.isatty())
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Out_Style.enable(enable_out)
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Out_Fore.enable(enable_out)
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enable_err = (False if color == 'never' else
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True if color == 'always' else
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stderr.isatty())
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Err_Style.enable(enable_err)
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Err_Fore.enable(enable_err)
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def info_main(*args):
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logger.info(''.join([Err_Style.BRIGHT, Err_Fore.GREEN] + list(args) +
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[Err_Style.RESET_ALL, Err_Fore.RESET]))
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def info_notify(s):
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info('{}{}{}{}'.format(Err_Style.BRIGHT, Err_Fore.LIGHTBLUE_EX, s,
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Err_Style.RESET_ALL))
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def shorten_string(string, max_width):
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''' make limited length string in form:
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"the string is very lo...(and 15 more)"
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'''
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string_len = len(string)
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if string_len <= max_width:
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return string
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visible = max_width - 16 - int(log10(string_len))
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# expected suffix len "...(and XXXXX more)"
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if not isinstance(string, unistr):
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visstring = unistr(string[:visible], errors='ignore')
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else:
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visstring = string[:visible]
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return u''.join((visstring, u'...(and ',
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unistr(string_len - visible), u' more)'))
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def get_console_width():
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try:
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cols = int(os.environ['COLUMNS'])
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except (KeyError, ValueError):
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pass
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else:
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if cols >= 25:
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return cols
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try:
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cols = max(25, int(os.popen('stty size', 'r').read().split()[1]))
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except Exception:
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pass
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else:
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return cols
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return 100
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def shprint(command, *args, **kwargs):
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'''Runs the command (which should be an sh.Command instance), while
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logging the output.'''
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kwargs["_iter"] = True
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kwargs["_out_bufsize"] = 1
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kwargs["_err_to_out"] = True
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kwargs["_bg"] = True
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is_critical = kwargs.pop('_critical', False)
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tail_n = kwargs.pop('_tail', None)
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if "P4A_FULL_DEBUG" in os.environ:
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tail_n = 0
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filter_in = kwargs.pop('_filter', None)
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filter_out = kwargs.pop('_filterout', None)
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if len(logger.handlers) > 1:
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logger.removeHandler(logger.handlers[1])
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columns = get_console_width()
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command_path = str(command).split('/')
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command_string = command_path[-1]
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string = ' '.join(['{}->{} running'.format(Out_Fore.LIGHTBLACK_EX,
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Out_Style.RESET_ALL),
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command_string] + list(args))
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# If logging is not in DEBUG mode, trim the command if necessary
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if logger.level > logging.DEBUG:
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logger.info('{}{}'.format(shorten_string(string, columns - 12),
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Err_Style.RESET_ALL))
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else:
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logger.debug('{}{}'.format(string, Err_Style.RESET_ALL))
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need_closing_newline = False
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try:
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msg_hdr = ' working: '
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msg_width = columns - len(msg_hdr) - 1
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output = command(*args, **kwargs)
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for line in output:
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if logger.level > logging.DEBUG:
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msg = line.replace(
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'\n', ' ').replace(
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'\t', ' ').replace(
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'\b', ' ').rstrip()
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if msg:
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stdout.write(u'{}\r{}{:<{width}}'.format(
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Err_Style.RESET_ALL, msg_hdr,
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shorten_string(msg, msg_width), width=msg_width))
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stdout.flush()
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need_closing_newline = True
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else:
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logger.debug(''.join(['\t', line.rstrip()]))
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if need_closing_newline:
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stdout.write('{}\r{:>{width}}\r'.format(
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Err_Style.RESET_ALL, ' ', width=(columns - 1)))
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stdout.flush()
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except sh.ErrorReturnCode as err:
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if need_closing_newline:
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stdout.write('{}\r{:>{width}}\r'.format(
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Err_Style.RESET_ALL, ' ', width=(columns - 1)))
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stdout.flush()
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if tail_n is not None or filter_in or filter_out:
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def printtail(out, name, forecolor, tail_n=0,
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re_filter_in=None, re_filter_out=None):
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lines = out.splitlines()
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if re_filter_in is not None:
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lines = [l for l in lines if re_filter_in.search(l)]
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if re_filter_out is not None:
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lines = [l for l in lines if not re_filter_out.search(l)]
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if tail_n == 0 or len(lines) <= tail_n:
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info('{}:\n{}\t{}{}'.format(
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name, forecolor, '\t\n'.join(lines), Out_Fore.RESET))
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else:
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info('{} (last {} lines of {}):\n{}\t{}{}'.format(
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name, tail_n, len(lines),
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forecolor, '\t\n'.join([s for s in lines[-tail_n:]]),
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Out_Fore.RESET))
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printtail(err.stdout.decode('utf-8'), 'STDOUT', Out_Fore.YELLOW, tail_n,
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re.compile(filter_in) if filter_in else None,
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re.compile(filter_out) if filter_out else None)
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printtail(err.stderr.decode('utf-8'), 'STDERR', Err_Fore.RED)
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if is_critical:
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env = kwargs.get("env")
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if env is not None:
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info("{}ENV:{}\n{}\n".format(
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Err_Fore.YELLOW, Err_Fore.RESET, "\n".join(
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"set {}={}".format(n, v) for n, v in env.items())))
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info("{}COMMAND:{}\ncd {} && {} {}\n".format(
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Err_Fore.YELLOW, Err_Fore.RESET, os.getcwd(), command,
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' '.join(args)))
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warning("{}ERROR: {} failed!{}".format(
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Err_Fore.RED, command, Err_Fore.RESET))
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exit(1)
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else:
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raise
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return output
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