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# -*- Mode: python -*-
#
# progress.py - progress meter
#
# Copyright (C) 2003, Xiph.org Foundation
#
# This file is part of positron.
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of a BSD-style license (see the COPYING file in the
# distribution).
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY
# or FITNESS FOR A PARTICULAR PURPOSE. See the license for more details.
from sys import stderr
class Progress:
def sync_start(self, num_items):
stderr.write("Downloading %d files...\n" % (num_items,))
return true
def transfer_start(self, filename, size):
stderr.write("%s:\n")
def transfer_progress(self, filename, size, bytes_so_far, rate):
self._print_line(filename, size, bytes_so_far, rate)
def transfer_stop(self, filename, size):
self._print_line(filename, size, size, 0)
stderr.write("\n")
def sync_stop(self):
pass
def _print_line(self, filename, size, bytes_so_far, rate):
percent_str = "%3d%%" % (100 * bytes_so_far / size,)
max_bar_width = 38
if bytes_so_far < size:
bar_width = max_bar_width * bytes_so_far / size
bar = "=" * (bar_width - 1) + ">"
else:
bar = "=" * max_bar_width
size_str = self._gen_size_str(size)
if rate > 0:
rate_str = self._gen_size_str(rate) + "/s"
if bytes_so_far < size:
time_remaining = (size - bytes_so_far) / rate
seconds = time_remaining % 60
minutes = (time_remaining // 60) % 60
hours = time_remaining // 3600
if hours > 0:
eta_str = "ETA: %d:%02d:%02d" % (hours, minutes, seconds)
else:
eta_str = "ETA: %d:%02d" % (minutes, seconds)
else:
eta_str = ""
else:
rate_str = ""
eta_str = ""
str = "%-4s|%-*s|%8s %10s %-15s" % (percent_str, max_bar_width,
bar, size_str, rate_str, eta_str)
str = "\r" + " " * 78 + "\r" + str
stderr.write(str)
def _gen_size_str(self, size):
kB = 1024.0
MB = kB * 1024.0
GB = MB * 1024.0
if size < kB:
size_str = "%dB" % (size, )
elif size < MB:
size_str = "%1.1fkB" % (size/kB,)
elif size < GB:
size_str = "%1.1fMB" % (size/MB,)
else:
size_str = "%1.1fGB" % (size/GB,)
return size_str
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