AlkantarClanX12
Current Path : /proc/self/root/opt/alt/python39/lib/python3.9/site-packages/pip/_vendor/progress/ |
Current File : //proc/self/root/opt/alt/python39/lib/python3.9/site-packages/pip/_vendor/progress/__init__.py |
# Copyright (c) 2012 Georgios Verigakis <verigak@gmail.com> # # Permission to use, copy, modify, and distribute this software for any # purpose with or without fee is hereby granted, provided that the above # copyright notice and this permission notice appear in all copies. # # THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. from __future__ import division, print_function from collections import deque from datetime import timedelta from math import ceil from sys import stderr try: from time import monotonic except ImportError: from time import time as monotonic __version__ = '1.6' HIDE_CURSOR = '\x1b[?25l' SHOW_CURSOR = '\x1b[?25h' class Infinite(object): file = stderr sma_window = 10 # Simple Moving Average window check_tty = True hide_cursor = True def __init__(self, message='', **kwargs): self.index = 0 self.start_ts = monotonic() self.avg = 0 self._avg_update_ts = self.start_ts self._ts = self.start_ts self._xput = deque(maxlen=self.sma_window) for key, val in kwargs.items(): setattr(self, key, val) self._max_width = 0 self._hidden_cursor = False self.message = message if self.file and self.is_tty(): if self.hide_cursor: print(HIDE_CURSOR, end='', file=self.file) self._hidden_cursor = True self.writeln('') def __del__(self): if self._hidden_cursor: print(SHOW_CURSOR, end='', file=self.file) def __getitem__(self, key): if key.startswith('_'): return None return getattr(self, key, None) @property def elapsed(self): return int(monotonic() - self.start_ts) @property def elapsed_td(self): return timedelta(seconds=self.elapsed) def update_avg(self, n, dt): if n > 0: xput_len = len(self._xput) self._xput.append(dt / n) now = monotonic() # update when we're still filling _xput, then after every second if (xput_len < self.sma_window or now - self._avg_update_ts > 1): self.avg = sum(self._xput) / len(self._xput) self._avg_update_ts = now def update(self): pass def start(self): pass def writeln(self, line): if self.file and self.is_tty(): width = len(line) if width < self._max_width: # Add padding to cover previous contents line += ' ' * (self._max_width - width) else: self._max_width = width print('\r' + line, end='', file=self.file) self.file.flush() def finish(self): if self.file and self.is_tty(): print(file=self.file) if self._hidden_cursor: print(SHOW_CURSOR, end='', file=self.file) self._hidden_cursor = False def is_tty(self): try: return self.file.isatty() if self.check_tty else True except AttributeError: msg = "%s has no attribute 'isatty'. Try setting check_tty=False." % self raise AttributeError(msg) def next(self, n=1): now = monotonic() dt = now - self._ts self.update_avg(n, dt) self._ts = now self.index = self.index + n self.update() def iter(self, it): self.iter_value = None with self: for x in it: self.iter_value = x yield x self.next() del self.iter_value def __enter__(self): self.start() return self def __exit__(self, exc_type, exc_val, exc_tb): self.finish() class Progress(Infinite): def __init__(self, *args, **kwargs): super(Progress, self).__init__(*args, **kwargs) self.max = kwargs.get('max', 100) @property def eta(self): return int(ceil(self.avg * self.remaining)) @property def eta_td(self): return timedelta(seconds=self.eta) @property def percent(self): return self.progress * 100 @property def progress(self): if self.max == 0: return 0 return min(1, self.index / self.max) @property def remaining(self): return max(self.max - self.index, 0) def start(self): self.update() def goto(self, index): incr = index - self.index self.next(incr) def iter(self, it): try: self.max = len(it) except TypeError: pass self.iter_value = None with self: for x in it: self.iter_value = x yield x self.next() del self.iter_value