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Viewing changes to bzrlib/progress.py

  • Committer: Martin Pool
  • Date: 2005-06-10 09:07:41 UTC
  • Revision ID: mbp@sourcefrog.net-20050610090741-3d5d7e200f80bab1
- limit rate at which progress bar is updated

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bzrlib/progress.py
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    The output file should be in line-buffered or unbuffered mode.
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    """
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    SPIN_CHARS = r'/-\|'
 
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    MIN_PAUSE = 0.1 # seconds
 
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    start_time = None
 
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    last_update = None
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    def __init__(self,
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                 to_file=sys.stderr,
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                 show_bar=True,
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                 show_count=True):
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        object.__init__(self)
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        self.start_time = None
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        self.to_file = to_file
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        self.suppressed = not _supports_progress(self.to_file)
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        self.spin_pos = 0
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    def update(self, msg, current_cnt, total_cnt=None):
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        """Update and redraw progress bar."""
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        if self.start_time is None:
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            self.start_time = time.time()
 
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        if self.suppressed:
 
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            return
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        # save these for the tick() function
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        self.last_msg = msg
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        self.last_cnt = current_cnt
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        self.last_total = total_cnt
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        if self.suppressed:
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            return
 
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        now = time.time()
 
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        if self.start_time is None:
 
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            self.start_time = now
 
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        else:
 
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            interval = now - self.last_update
 
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            if interval > 0 and interval < self.MIN_PAUSE:
 
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                return
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        self.last_update = now
 
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        width = _width()
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        if total_cnt: