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# Copyright 2013-2014 The Meson development team
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# http://www.apache.org/licenses/LICENSE-2.0
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import sys, os, platform, io
from contextlib import contextmanager
"""This is (mostly) a standalone module used to write logging
information about Meson runs. Some output goes to screen,
some to logging dir and some goes to both."""
if platform.system().lower() == 'windows':
colorize_console = os.isatty(sys.stdout.fileno()) and os.environ.get('ANSICON')
else:
colorize_console = os.isatty(sys.stdout.fileno()) and os.environ.get('TERM') != 'dumb'
log_dir = None
log_file = None
log_fname = 'meson-log.txt'
log_depth = 0
def initialize(logdir):
global log_dir, log_file
log_dir = logdir
log_file = open(os.path.join(logdir, log_fname), 'w', encoding='utf8')
def shutdown():
global log_file
if log_file is not None:
exception_around_goer = log_file
log_file = None
exception_around_goer.close()
class AnsiDecorator:
plain_code = "\033[0m"
def __init__(self, text, code):
self.text = text
self.code = code
def get_text(self, with_codes):
if with_codes:
return self.code + self.text + AnsiDecorator.plain_code
return self.text
def bold(text):
return AnsiDecorator(text, "\033[1m")
def red(text):
return AnsiDecorator(text, "\033[1;31m")
def green(text):
return AnsiDecorator(text, "\033[1;32m")
def yellow(text):
return AnsiDecorator(text, "\033[1;33m")
def cyan(text):
return AnsiDecorator(text, "\033[1;36m")
def process_markup(args, keep):
arr = []
for arg in args:
if isinstance(arg, str):
arr.append(arg)
elif isinstance(arg, AnsiDecorator):
arr.append(arg.get_text(keep))
else:
arr.append(str(arg))
return arr
def force_print(*args, **kwargs):
iostr = io.StringIO()
kwargs['file'] = iostr
print(*args, **kwargs)
raw = iostr.getvalue()
if log_depth > 0:
prepend = '|' * log_depth
raw = prepend + raw.replace('\n', '\n' + prepend, raw.count('\n') - 1)
# _Something_ is going to get printed.
try:
print(raw, end='')
except UnicodeEncodeError:
cleaned = raw.encode('ascii', 'replace').decode('ascii')
print(cleaned, end='')
def debug(*args, **kwargs):
arr = process_markup(args, False)
if log_file is not None:
print(*arr, file=log_file, **kwargs) # Log file never gets ANSI codes.
log_file.flush()
def log(*args, **kwargs):
arr = process_markup(args, False)
if log_file is not None:
print(*arr, file=log_file, **kwargs) # Log file never gets ANSI codes.
log_file.flush()
if colorize_console:
arr = process_markup(args, True)
force_print(*arr, **kwargs)
def _log_error(severity, *args, **kwargs):
from . import environment
if severity == 'warning':
args = (yellow('WARNING:'),) + args
elif severity == 'error':
args = (red('ERROR:'),) + args
else:
assert False, 'Invalid severity ' + severity
location = kwargs.pop('location', None)
if location is not None:
location_str = '{}:{}:'.format(os.path.join(location.subdir,
environment.build_filename),
location.lineno)
args = (location_str,) + args
log(*args, **kwargs)
def error(*args, **kwargs):
return _log_error('error', *args, **kwargs)
def warning(*args, **kwargs):
return _log_error('warning', *args, **kwargs)
def exception(e):
log()
if hasattr(e, 'file') and hasattr(e, 'lineno') and hasattr(e, 'colno'):
log('%s:%d:%d:' % (e.file, e.lineno, e.colno), red('ERROR: '), e)
else:
log(red('ERROR:'), e)
# Format a list for logging purposes as a string. It separates
# all but the last item with commas, and the last with 'and'.
def format_list(list):
l = len(list)
if l > 2:
return ' and '.join([', '.join(list[:-1]), list[-1]])
elif l == 2:
return ' and '.join(list)
elif l == 1:
return list[0]
else:
return ''
@contextmanager
def nested():
global log_depth
log_depth += 1
try:
yield
finally:
log_depth -= 1
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