1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
|
import abc
import os
import sys
import logging
from pathlib import Path
from .storage import storage
# TODO: use logging's built in levels instead.
# Although logging is threaded and I wish to avoid that.
# It's more Pythonistic or w/e you want to call it.
class LOG_LEVELS:
Critical = 0b001
Error = 0b010
Warning = 0b011
Info = 0b101
Debug = 0b111
class journald(dict):
@abc.abstractmethod
def log(message, level=LOG_LEVELS.Debug):
import systemd.journal
log_adapter = logging.getLogger('archinstall')
log_fmt = logging.Formatter("[%(levelname)s]: %(message)s")
log_ch = systemd.journal.JournalHandler()
log_ch.setFormatter(log_fmt)
log_adapter.addHandler(log_ch)
log_adapter.setLevel(logging.DEBUG)
if level == LOG_LEVELS.Critical:
log_adapter.critical(message)
elif level == LOG_LEVELS.Error:
log_adapter.error(message)
elif level == LOG_LEVELS.Warning:
log_adapter.warning(message)
elif level == LOG_LEVELS.Info:
log_adapter.info(message)
elif level == LOG_LEVELS.Debug:
log_adapter.debug(message)
else:
# Fallback logger
log_adapter.debug(message)
# TODO: Replace log() for session based logging.
class SessionLogging():
def __init__(self):
pass
# Found first reference here: https://stackoverflow.com/questions/7445658/how-to-detect-if-the-console-does-support-ansi-escape-codes-in-python
# And re-used this: https://github.com/django/django/blob/master/django/core/management/color.py#L12
def supports_color():
"""
Return True if the running system's terminal supports color,
and False otherwise.
"""
supported_platform = sys.platform != 'win32' or 'ANSICON' in os.environ
# isatty is not always implemented, #6223.
is_a_tty = hasattr(sys.stdout, 'isatty') and sys.stdout.isatty()
return supported_platform and is_a_tty
# Heavily influenced by: https://github.com/django/django/blob/ae8338daf34fd746771e0678081999b656177bae/django/utils/termcolors.py#L13
# Color options here: https://askubuntu.com/questions/528928/how-to-do-underline-bold-italic-strikethrough-color-background-and-size-i
def stylize_output(text :str, *opts, **kwargs):
opt_dict = {'bold': '1', 'italic' : '3', 'underscore': '4', 'blink': '5', 'reverse': '7', 'conceal': '8'}
color_names = ('black', 'red', 'green', 'yellow', 'blue', 'magenta', 'cyan', 'white')
foreground = {color_names[x]: '3%s' % x for x in range(8)}
background = {color_names[x]: '4%s' % x for x in range(8)}
RESET = '0'
code_list = []
if text == '' and len(opts) == 1 and opts[0] == 'reset':
return '\x1b[%sm' % RESET
for k, v in kwargs.items():
if k == 'fg':
code_list.append(foreground[v])
elif k == 'bg':
code_list.append(background[v])
for o in opts:
if o in opt_dict:
code_list.append(opt_dict[o])
if 'noreset' not in opts:
text = '%s\x1b[%sm' % (text or '', RESET)
return '%s%s' % (('\x1b[%sm' % ';'.join(code_list)), text or '')
def log(*args, **kwargs):
string = orig_string = ' '.join([str(x) for x in args])
# Attempt to colorize the output if supported
# Insert default colors and override with **kwargs
if supports_color():
kwargs = {'bg' : 'black', 'fg': 'white', **kwargs}
string = stylize_output(string, **kwargs)
# If a logfile is defined in storage,
# we use that one to output everything
if (filename := storage.get('LOG_FILE', None)):
absolute_logfile = os.path.join(storage.get('LOG_PATH', './'), filename)
if not os.path.isfile(absolute_logfile):
try:
Path(absolute_logfile).parents[0].mkdir(exist_ok=True, parents=True)
except PermissionError:
# Fallback to creating the log file in the current folder
err_string = f"Not enough permission to place log file at {absolute_logfile}, creating it in {Path('./').absolute()/filename} instead."
absolute_logfile = Path('./').absolute()/filename
absolute_logfile.parents[0].mkdir(exist_ok=True)
absolute_logfile = str(absolute_logfile)
storage['LOG_PATH'] = './'
log(err_string, fg="red")
Path(absolute_logfile).touch() # Overkill?
with open(absolute_logfile, 'a') as log_file:
log_file.write(f"{orig_string}\n")
# If we assigned a level, try to log it to systemd's journald.
# Unless the level is higher than we've decided to output interactively.
# (Remember, log files still get *ALL* the output despite level restrictions)
if 'level' in kwargs:
if kwargs['level'] > storage.get('LOG_LEVEL', LOG_LEVELS.Info):
# Level on log message was Debug, but output level is set to Info.
# In that case, we'll drop it.
return None
try:
journald.log(string, level=kwargs.get('level', LOG_LEVELS.Info))
except ModuleNotFoundError:
pass # Ignore writing to journald
# Finally, print the log unless we skipped it based on level.
# We use sys.stdout.write()+flush() instead of print() to try and
# fix issue #94
sys.stdout.write(f"{string}\n")
sys.stdout.flush()
|