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- from .package_level import format_f, format_exporter_version
- from bpy import app
- from io import open
- from math import floor
- from time import time
- from sys import exc_info
- from traceback import format_tb
- class Logger:
- instance = None
- def __init__(self, filename):
- self.start_time = time()
- self.nWarnings = 0
- self.log_handler = open(filename, 'w', encoding='utf8')
- self.log_handler.write('Exporter version: ' + format_exporter_version() + ', Blender version: ' + app.version_string + '\n')
- # allow the static methods to log, so instance does not need to be passed everywhere
- Logger.instance = self
- def log_error_stack(self):
- ex = exc_info()
- Logger.log('========= An error was encountered =========', 0)
- stack = format_tb(ex[2])
- for line in stack:
- self.log_handler.write(line) # avoid tabs & extra newlines by not calling log() inside catch
- self.log_handler.write('ERROR: ' + str(ex[1]) + '\n')
- def close(self):
- Logger.log('========= end of processing =========', 0)
- elapsed_time = time() - self.start_time
- minutes = floor(elapsed_time / 60)
- seconds = elapsed_time - (minutes * 60)
- Logger.log('elapsed time: ' + str(minutes) + ' min, ' + format_f(seconds) + ' secs', 0)
- self.log_handler.close()
- Logger.instance = None
- @staticmethod
- def warn(msg, numTabIndent = 1, noNewLine = False):
- Logger.log('WARNING: ' + msg, numTabIndent, noNewLine)
- Logger.instance.nWarnings += 1
- @staticmethod
- def log(msg, numTabIndent = 1, noNewLine = False):
- # allow code that calls Logger run successfully when not logging
- if Logger.instance is None: return
- for i in range(numTabIndent):
- Logger.instance.log_handler.write('\t')
- Logger.instance.log_handler.write(msg)
- print(msg) # for debugging / running Blender fron console
- if not noNewLine: Logger.instance.log_handler.write('\n')
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