mirror of https://gitlab.com/ita1024/waf.git
108 lines
2.7 KiB
Python
108 lines
2.7 KiB
Python
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#!/usr/bin/env python
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# encoding: utf-8
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# Thomas Nagy, 2013 (ita)
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"""
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A system for recording all outputs to a log file. Just add the following to your wscript file::
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def init(ctx):
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ctx.load('build_logs')
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"""
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import atexit, sys, time, os, shutil, threading
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from waflib import Logs, Context
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# adding the logs under the build/ directory will clash with the clean/ command
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try:
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up = os.path.dirname(Context.g_module.__file__)
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except AttributeError:
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up = '.'
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LOGFILE = os.path.join(up, 'logs', '%s.log' % time.strftime('%Y_%m_%d_%H_%M'))
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wlock = threading.Lock()
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class log_to_file(object):
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def __init__(self, stream, fileobj, filename):
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self.stream = stream
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self.encoding = self.stream.encoding
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self.fileobj = fileobj
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self.filename = filename
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self.is_valid = True
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def replace_colors(self, data):
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for x in Logs.colors_lst.values():
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if isinstance(x, str):
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data = data.replace(x, '')
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return data
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def write(self, data):
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try:
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wlock.acquire()
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self.stream.write(data)
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self.stream.flush()
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if self.is_valid:
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self.fileobj.write(self.replace_colors(data))
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finally:
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wlock.release()
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def fileno(self):
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return self.stream.fileno()
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def flush(self):
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self.stream.flush()
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if self.is_valid:
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self.fileobj.flush()
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def isatty(self):
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return self.stream.isatty()
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def init(ctx):
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global LOGFILE
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filename = os.path.abspath(LOGFILE)
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try:
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os.makedirs(os.path.dirname(os.path.abspath(filename)))
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except OSError:
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pass
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if hasattr(os, 'O_NOINHERIT'):
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fd = os.open(LOGFILE, os.O_CREAT | os.O_TRUNC | os.O_WRONLY | os.O_NOINHERIT)
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fileobj = os.fdopen(fd, 'w')
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else:
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fileobj = open(LOGFILE, 'w')
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old_stderr = sys.stderr
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# sys.stdout has already been replaced, so __stdout__ will be faster
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#sys.stdout = log_to_file(sys.stdout, fileobj, filename)
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#sys.stderr = log_to_file(sys.stderr, fileobj, filename)
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sys.stdout = log_to_file(sys.__stdout__, fileobj, filename)
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sys.stderr = log_to_file(sys.__stderr__, fileobj, filename)
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# now mess with the logging module...
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for x in Logs.log.handlers:
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try:
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stream = x.stream
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except AttributeError:
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pass
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else:
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if id(stream) == id(old_stderr):
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x.stream = sys.stderr
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def exit_cleanup():
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try:
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fileobj = sys.stdout.fileobj
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except AttributeError:
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pass
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else:
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sys.stdout.is_valid = False
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sys.stderr.is_valid = False
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fileobj.close()
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filename = sys.stdout.filename
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Logs.info('Output logged to %r' % filename)
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# then copy the log file to "latest.log" if possible
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up = os.path.dirname(os.path.abspath(filename))
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try:
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shutil.copy(filename, os.path.join(up, 'latest.log'))
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except OSError:
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# this may fail on windows due to processes spawned
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#
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pass
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atexit.register(exit_cleanup)
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