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60f9290d02
If size is 0, using pb.Percentage will result in a ZeroDivisionException. Note: the output in case of size == 0 looks a bit "strange" - for a consistent output we should probably subclass pb.Percentage.
62 lines
1.7 KiB
Python
62 lines
1.7 KiB
Python
# Copyright (C) 2018 SUSE Linux. All rights reserved.
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# This program is free software; it may be used, copied, modified
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# and distributed under the terms of the GNU General Public Licence,
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# either version 2, or (at your option) any later version.
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try:
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import progressbar as pb
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have_pb_module = True
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except ImportError:
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have_pb_module = False
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class PBTextMeter(object):
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def start(self, basename, size=None):
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if size is None:
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widgets = [basename + ': ', pb.AnimatedMarker(), ' ', pb.Timer()]
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self.bar = pb.ProgressBar(widgets=widgets, maxval=pb.UnknownLength)
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else:
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widgets = [basename + ': ', pb.Bar(), ' ', pb.ETA()]
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if size:
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# if size is 0, using pb.Percentage will result in
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# a ZeroDivisionException
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widgets.insert(1, pb.Percentage())
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self.bar = pb.ProgressBar(widgets=widgets, maxval=size)
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self.bar.start()
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def update(self, amount_read):
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self.bar.update(amount_read)
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def end(self):
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self.bar.finish()
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class NoPBTextMeter(object):
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_complained = False
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def start(self, basename, size=None):
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if not self._complained:
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print('Please install the progressbar module')
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NoPBTextMeter._complained = True
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print('Processing: %s' % basename)
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def update(self, *args, **kwargs):
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pass
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def end(self, *args, **kwargs):
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pass
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def create_text_meter(*args, **kwargs):
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use_pb_fallback = kwargs.pop('use_pb_fallback', True)
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if have_pb_module or use_pb_fallback:
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return TextMeter(*args, **kwargs)
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return None
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if have_pb_module:
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TextMeter = PBTextMeter
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else:
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TextMeter = NoPBTextMeter
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# vim: sw=4 et
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