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49 lines
1.6 KiB
Python
49 lines
1.6 KiB
Python
# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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# Text progress bar library, like curl or scp.
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import sys, datetime, time
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class ProgressBar(object):
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def __init__(self, label, limit, label_width=12):
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self.label = label
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self.limit = limit
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self.label_width = label_width
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self.cur = 0
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self.t0 = datetime.datetime.now()
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self.fullwidth = None
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self.barlen = 64 - self.label_width
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self.fmt = '\r%-' + str(label_width) + 's %3d%% %-' + str(self.barlen) + 's| %6.1fs'
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def update(self, value):
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self.cur = value
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pct = int(100.0 * self.cur / self.limit)
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barlen = int(1.0 * self.barlen * self.cur / self.limit) - 1
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bar = '='*barlen + '>'
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dt = datetime.datetime.now() - self.t0
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dt = dt.seconds + dt.microseconds * 1e-6
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line = self.fmt%(self.label[:self.label_width], pct, bar, dt)
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self.fullwidth = len(line)
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sys.stdout.write(line)
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sys.stdout.flush()
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# Clear the current bar and leave the cursor at the start of the line.
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def clear(self):
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if (self.fullwidth):
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sys.stdout.write('\r' + ' ' * self.fullwidth + '\r')
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self.fullwidth = None
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def finish(self):
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self.update(self.limit)
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sys.stdout.write('\n')
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if __name__ == '__main__':
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pb = ProgressBar('test', 12)
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for i in range(12):
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pb.update(i)
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time.sleep(0.5)
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pb.finish()
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