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fix crazy progress bar wrappping when shrinking terminal window size

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Nick Sweeting 2020-07-27 18:51:49 -04:00
parent 904f728785
commit 6652982856
1 changed files with 10 additions and 2 deletions
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12
archivebox/logging_util.py
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@ -114,12 +114,20 @@ class TimedProgress:
def progress_bar(seconds: int, prefix: str='') -> None: def progress_bar(seconds: int, prefix: str='') -> None:
"""show timer in the form of progress bar, with percentage and seconds remaining""" """show timer in the form of progress bar, with percentage and seconds remaining"""
chunk = '█' if PYTHON_ENCODING == 'UTF-8' else '#' chunk = '█' if PYTHON_ENCODING == 'UTF-8' else '#'
chunks = TERM_WIDTH() - len(prefix) - 20 # number of progress chunks to show (aka max bar width) last_width = TERM_WIDTH()
chunks = last_width - len(prefix) - 20 # number of progress chunks to show (aka max bar width)
try: try:
for s in range(seconds * chunks): for s in range(seconds * chunks):
chunks = TERM_WIDTH() - len(prefix) - 20 max_width = TERM_WIDTH()
if max_width < last_width:
# when the terminal size is shrunk, we have to write a newline
# otherwise the progress bar will keep wrapping incorrectly
sys.stdout.write('\r\n')
sys.stdout.flush()
chunks = max_width - len(prefix) - 20
progress = s / chunks / seconds * 100 progress = s / chunks / seconds * 100
bar_width = round(progress/(100/chunks)) bar_width = round(progress/(100/chunks))
last_width = max_width
# ████████████████████ 0.9% (1/60sec) # ████████████████████ 0.9% (1/60sec)
sys.stdout.write('\r{0}{1}{2}{3} {4}% ({5}/{6}sec)'.format( sys.stdout.write('\r{0}{1}{2}{3} {4}% ({5}/{6}sec)'.format(