lbry-android-sdk/p4a/pythonforandroidold/logger.py
2022-12-02 15:15:34 -05:00

244 lines
8.4 KiB
Python

import logging
import os
import re
import sh
from sys import stdout, stderr
from math import log10
from collections import defaultdict
from colorama import Style as Colo_Style, Fore as Colo_Fore
import six
# This codecs change fixes a bug with log output, but crashes under python3
if not six.PY3:
import codecs
stdout = codecs.getwriter('utf8')(stdout)
stderr = codecs.getwriter('utf8')(stderr)
if six.PY2:
unistr = unicode # noqa F821
else:
unistr = str
# monkey patch to show full output
sh.ErrorReturnCode.truncate_cap = 999999
class LevelDifferentiatingFormatter(logging.Formatter):
def format(self, record):
if record.levelno > 30:
record.msg = '{}{}[ERROR]{}{}: '.format(
Err_Style.BRIGHT, Err_Fore.RED, Err_Fore.RESET,
Err_Style.RESET_ALL) + record.msg
elif record.levelno > 20:
record.msg = '{}{}[WARNING]{}{}: '.format(
Err_Style.BRIGHT, Err_Fore.RED, Err_Fore.RESET,
Err_Style.RESET_ALL) + record.msg
elif record.levelno > 10:
record.msg = '{}[INFO]{}: '.format(
Err_Style.BRIGHT, Err_Style.RESET_ALL) + record.msg
else:
record.msg = '{}{}[DEBUG]{}{}: '.format(
Err_Style.BRIGHT, Err_Fore.LIGHTBLACK_EX, Err_Fore.RESET,
Err_Style.RESET_ALL) + record.msg
return super(LevelDifferentiatingFormatter, self).format(record)
logger = logging.getLogger('p4a')
# Necessary as importlib reloads this,
# which would add a second handler and reset the level
if not hasattr(logger, 'touched'):
logger.setLevel(logging.INFO)
logger.touched = True
ch = logging.StreamHandler(stderr)
formatter = LevelDifferentiatingFormatter('%(message)s')
ch.setFormatter(formatter)
logger.addHandler(ch)
info = logger.info
debug = logger.debug
warning = logger.warning
error = logger.error
class colorama_shim(object):
def __init__(self, real):
self._dict = defaultdict(str)
self._real = real
self._enabled = False
def __getattr__(self, key):
return getattr(self._real, key) if self._enabled else self._dict[key]
def enable(self, enable):
self._enabled = enable
Out_Style = colorama_shim(Colo_Style)
Out_Fore = colorama_shim(Colo_Fore)
Err_Style = colorama_shim(Colo_Style)
Err_Fore = colorama_shim(Colo_Fore)
def setup_color(color):
enable_out = (False if color == 'never' else
True if color == 'always' else
stdout.isatty())
Out_Style.enable(enable_out)
Out_Fore.enable(enable_out)
enable_err = (False if color == 'never' else
True if color == 'always' else
stderr.isatty())
Err_Style.enable(enable_err)
Err_Fore.enable(enable_err)
def info_main(*args):
logger.info(''.join([Err_Style.BRIGHT, Err_Fore.GREEN] + list(args) +
[Err_Style.RESET_ALL, Err_Fore.RESET]))
def info_notify(s):
info('{}{}{}{}'.format(Err_Style.BRIGHT, Err_Fore.LIGHTBLUE_EX, s,
Err_Style.RESET_ALL))
def shorten_string(string, max_width):
''' make limited length string in form:
"the string is very lo...(and 15 more)"
'''
string_len = len(string)
if string_len <= max_width:
return string
visible = max_width - 16 - int(log10(string_len))
# expected suffix len "...(and XXXXX more)"
if not isinstance(string, unistr):
visstring = unistr(string[:visible], errors='ignore')
else:
visstring = string[:visible]
return u''.join((visstring, u'...(and ',
unistr(string_len - visible), u' more)'))
def get_console_width():
try:
cols = int(os.environ['COLUMNS'])
except (KeyError, ValueError):
pass
else:
if cols >= 25:
return cols
try:
cols = max(25, int(os.popen('stty size', 'r').read().split()[1]))
except Exception:
pass
else:
return cols
return 100
def shprint(command, *args, **kwargs):
'''Runs the command (which should be an sh.Command instance), while
logging the output.'''
kwargs["_iter"] = True
kwargs["_out_bufsize"] = 1
kwargs["_err_to_out"] = True
kwargs["_bg"] = True
is_critical = kwargs.pop('_critical', False)
tail_n = kwargs.pop('_tail', None)
full_debug = False
if "P4A_FULL_DEBUG" in os.environ:
tail_n = 0
full_debug = True
filter_in = kwargs.pop('_filter', None)
filter_out = kwargs.pop('_filterout', None)
if len(logger.handlers) > 1:
logger.removeHandler(logger.handlers[1])
columns = get_console_width()
command_path = str(command).split('/')
command_string = command_path[-1]
string = ' '.join(['{}->{} running'.format(Out_Fore.LIGHTBLACK_EX,
Out_Style.RESET_ALL),
command_string] + list(args))
# If logging is not in DEBUG mode, trim the command if necessary
if logger.level > logging.DEBUG:
logger.info('{}{}'.format(shorten_string(string, columns - 12),
Err_Style.RESET_ALL))
else:
logger.debug('{}{}'.format(string, Err_Style.RESET_ALL))
need_closing_newline = False
try:
msg_hdr = ' working: '
msg_width = columns - len(msg_hdr) - 1
output = command(*args, **kwargs)
for line in output:
if isinstance(line, bytes):
line = line.decode('utf-8', errors='replace')
if logger.level > logging.DEBUG:
if full_debug:
stdout.write(line)
stdout.flush()
continue
msg = line.replace(
'\n', ' ').replace(
'\t', ' ').replace(
'\b', ' ').rstrip()
if msg:
if "CI" not in os.environ:
stdout.write(u'{}\r{}{:<{width}}'.format(
Err_Style.RESET_ALL, msg_hdr,
shorten_string(msg, msg_width), width=msg_width))
stdout.flush()
need_closing_newline = True
else:
logger.debug(''.join(['\t', line.rstrip()]))
if need_closing_newline:
stdout.write('{}\r{:>{width}}\r'.format(
Err_Style.RESET_ALL, ' ', width=(columns - 1)))
stdout.flush()
except sh.ErrorReturnCode as err:
if need_closing_newline:
stdout.write('{}\r{:>{width}}\r'.format(
Err_Style.RESET_ALL, ' ', width=(columns - 1)))
stdout.flush()
if tail_n is not None or filter_in or filter_out:
def printtail(out, name, forecolor, tail_n=0,
re_filter_in=None, re_filter_out=None):
lines = out.splitlines()
if re_filter_in is not None:
lines = [l for l in lines if re_filter_in.search(l)]
if re_filter_out is not None:
lines = [l for l in lines if not re_filter_out.search(l)]
if tail_n == 0 or len(lines) <= tail_n:
info('{}:\n{}\t{}{}'.format(
name, forecolor, '\t\n'.join(lines), Out_Fore.RESET))
else:
info('{} (last {} lines of {}):\n{}\t{}{}'.format(
name, tail_n, len(lines),
forecolor, '\t\n'.join([s for s in lines[-tail_n:]]),
Out_Fore.RESET))
printtail(err.stdout.decode('utf-8'), 'STDOUT', Out_Fore.YELLOW, tail_n,
re.compile(filter_in) if filter_in else None,
re.compile(filter_out) if filter_out else None)
printtail(err.stderr.decode('utf-8'), 'STDERR', Err_Fore.RED)
if is_critical:
env = kwargs.get("env")
if env is not None:
info("{}ENV:{}\n{}\n".format(
Err_Fore.YELLOW, Err_Fore.RESET, "\n".join(
"set {}={}".format(n, v) for n, v in env.items())))
info("{}COMMAND:{}\ncd {} && {} {}\n".format(
Err_Fore.YELLOW, Err_Fore.RESET, os.getcwd(), command,
' '.join(args)))
warning("{}ERROR: {} failed!{}".format(
Err_Fore.RED, command, Err_Fore.RESET))
exit(1)
else:
raise
return output