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svtplay-dl/lib/svtplay/output.py
2013-03-02 22:02:52 +01:00

63 lines
1.9 KiB
Python

# ex:ts=4:sw=4:sts=4:et
# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
from __future__ import absolute_import
import sys
import os
progress_stream = sys.stderr
def progress(byte, total, extra = ""):
""" Print some info about how much we have downloaded """
ratio = float(byte) / total
percent = round(ratio*100, 2)
tlen = str(len(str(total)))
fmt = "Downloaded %"+tlen+"dkB of %dkB bytes (% 3.2f%%)"
progresstr = fmt % (byte >> 10, total >> 10, percent)
columns = int(os.getenv("COLUMNS", "80"))
if len(progresstr) < columns - 13:
p = int((columns - len(progresstr) - 3) * ratio)
q = int((columns - len(progresstr) - 3) * (1 - ratio))
progresstr = "[" + ("#" * p) + (" " * q) + "] " + progresstr
progress_stream.write(progresstr + ' ' + extra + '\r')
if byte >= total:
progress_stream.write('\n')
progress_stream.flush()
def progressbar(total, pos, msg=""):
"""
Given a total and a progress position, output a progress bar
to stderr. It is important to not output anything else while
using this, as it relies soley on the behavior of carriage
return (\\r).
Can also take an optioal message to add after the
progressbar. It must not contain newliens.
The progress bar will look something like this:
[099/500][=========...............................] ETA: 13:36:59
Of course, the ETA part should be supplied be the calling
function.
"""
width = 50 # TODO hardcoded progressbar width
rel_pos = int(float(pos)/total*width)
bar = str()
# FIXME ugly generation of bar
for _ in range(0, rel_pos):
bar += "="
for _ in range(rel_pos, width):
bar += "."
# Determine how many digits in total (base 10)
digits_total = len(str(total))
fmt_width = "%0" + str(digits_total) + "d"
fmt = "\r[" + fmt_width + "/" + fmt_width + "][%s] %s"
progress_stream.write(fmt % (pos, total, bar, msg))